最后一次优化和调整代码，增加支持keil4的中文注释。
This commit is contained in:
Andy0613
@@ -0,0 +1,198 @@
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$NOMOD51
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;------------------------------------------------------------------------------
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; This file is part of the C51 Compiler package
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; Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc.
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; Version 8.01
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;
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; *** <<< Use Configuration Wizard in Context Menu >>> ***
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;------------------------------------------------------------------------------
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; STARTUP.A51: This code is executed after processor reset.
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;
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; To translate this file use A51 with the following invocation:
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;
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; A51 STARTUP.A51
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;
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; To link the modified STARTUP.OBJ file to your application use the following
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; Lx51 invocation:
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;
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; Lx51 your object file list, STARTUP.OBJ controls
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;
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;------------------------------------------------------------------------------
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;
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; User-defined <h> Power-On Initialization of Memory
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;
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; With the following EQU statements the initialization of memory
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; at processor reset can be defined:
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;
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; <o> IDATALEN: IDATA memory size <0x0-0x100>
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; <i> Note: The absolute start-address of IDATA memory is always 0
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; <i> The IDATA space overlaps physically the DATA and BIT areas.
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IDATALEN EQU 80H
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;
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; <o> XDATASTART: XDATA memory start address <0x0-0xFFFF>
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; <i> The absolute start address of XDATA memory
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XDATASTART EQU 0
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;
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; <o> XDATALEN: XDATA memory size <0x0-0xFFFF>
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; <i> The length of XDATA memory in bytes.
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XDATALEN EQU 0
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;
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; <o> PDATASTART: PDATA memory start address <0x0-0xFFFF>
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; <i> The absolute start address of PDATA memory
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PDATASTART EQU 0H
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;
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; <o> PDATALEN: PDATA memory size <0x0-0xFF>
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; <i> The length of PDATA memory in bytes.
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PDATALEN EQU 0H
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;
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;</h>
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;------------------------------------------------------------------------------
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;
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;<h> Reentrant Stack Initialization
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;
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; The following EQU statements define the stack pointer for reentrant
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; functions and initialized it:
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;
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; <h> Stack Space for reentrant functions in the SMALL model.
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; <q> IBPSTACK: Enable SMALL model reentrant stack
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; <i> Stack space for reentrant functions in the SMALL model.
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IBPSTACK EQU 0 ; set to 1 if small reentrant is used.
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; <o> IBPSTACKTOP: End address of SMALL model stack <0x0-0xFF>
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; <i> Set the top of the stack to the highest location.
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IBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
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; </h>
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;
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; <h> Stack Space for reentrant functions in the LARGE model.
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; <q> XBPSTACK: Enable LARGE model reentrant stack
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; <i> Stack space for reentrant functions in the LARGE model.
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XBPSTACK EQU 0 ; set to 1 if large reentrant is used.
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; <o> XBPSTACKTOP: End address of LARGE model stack <0x0-0xFFFF>
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; <i> Set the top of the stack to the highest location.
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XBPSTACKTOP EQU 0xFFFF +1 ; default 0FFFFH+1
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; </h>
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;
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; <h> Stack Space for reentrant functions in the COMPACT model.
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; <q> PBPSTACK: Enable COMPACT model reentrant stack
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; <i> Stack space for reentrant functions in the COMPACT model.
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PBPSTACK EQU 0 ; set to 1 if compact reentrant is used.
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;
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; <o> PBPSTACKTOP: End address of COMPACT model stack <0x0-0xFFFF>
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; <i> Set the top of the stack to the highest location.
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PBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
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; </h>
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;</h>
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;------------------------------------------------------------------------------
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;
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; Memory Page for Using the Compact Model with 64 KByte xdata RAM
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; <e>Compact Model Page Definition
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;
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; <i>Define the XDATA page used for PDATA variables.
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; <i>PPAGE must conform with the PPAGE set in the linker invocation.
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;
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; Enable pdata memory page initalization
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PPAGEENABLE EQU 0 ; set to 1 if pdata object are used.
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;
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; <o> PPAGE number <0x0-0xFF>
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; <i> uppermost 256-byte address of the page used for PDATA variables.
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PPAGE EQU 0
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;
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; <o> SFR address which supplies uppermost address byte <0x0-0xFF>
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; <i> most 8051 variants use P2 as uppermost address byte
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PPAGE_SFR DATA 0A0H
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;
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; </e>
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;------------------------------------------------------------------------------
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; Standard SFR Symbols
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ACC DATA 0E0H
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B DATA 0F0H
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SP DATA 81H
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DPL DATA 82H
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DPH DATA 83H
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NAME ?C_STARTUP
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?C_C51STARTUP SEGMENT CODE
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?STACK SEGMENT IDATA
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RSEG ?STACK
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DS 1
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EXTRN CODE (?C_START)
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PUBLIC ?C_STARTUP
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CSEG AT 0
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?C_STARTUP: LJMP STARTUP1
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RSEG ?C_C51STARTUP
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STARTUP1:
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IF IDATALEN <> 0
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MOV R0,#IDATALEN - 1
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CLR A
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IDATALOOP: MOV @R0,A
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DJNZ R0,IDATALOOP
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ENDIF
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IF XDATALEN <> 0
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MOV DPTR,#XDATASTART
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MOV R7,#LOW (XDATALEN)
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IF (LOW (XDATALEN)) <> 0
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MOV R6,#(HIGH (XDATALEN)) +1
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ELSE
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MOV R6,#HIGH (XDATALEN)
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ENDIF
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CLR A
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XDATALOOP: MOVX @DPTR,A
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INC DPTR
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DJNZ R7,XDATALOOP
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DJNZ R6,XDATALOOP
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ENDIF
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IF PPAGEENABLE <> 0
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MOV PPAGE_SFR,#PPAGE
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ENDIF
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IF PDATALEN <> 0
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MOV R0,#LOW (PDATASTART)
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MOV R7,#LOW (PDATALEN)
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CLR A
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PDATALOOP: MOVX @R0,A
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INC R0
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DJNZ R7,PDATALOOP
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ENDIF
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IF IBPSTACK <> 0
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EXTRN DATA (?C_IBP)
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MOV ?C_IBP,#LOW IBPSTACKTOP
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ENDIF
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IF XBPSTACK <> 0
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EXTRN DATA (?C_XBP)
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MOV ?C_XBP,#HIGH XBPSTACKTOP
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MOV ?C_XBP+1,#LOW XBPSTACKTOP
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ENDIF
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IF PBPSTACK <> 0
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EXTRN DATA (?C_PBP)
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MOV ?C_PBP,#LOW PBPSTACKTOP
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ENDIF
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MOV SP,#?STACK-1
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; This code is required if you use L51_BANK.A51 with Banking Mode 4
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;<h> Code Banking
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; <q> Select Bank 0 for L51_BANK.A51 Mode 4
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#if 0
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; <i> Initialize bank mechanism to code bank 0 when using L51_BANK.A51 with Banking Mode 4.
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EXTRN CODE (?B_SWITCH0)
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CALL ?B_SWITCH0 ; init bank mechanism to code bank 0
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#endif
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;</h>
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LJMP ?C_START
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END
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@@ -0,0 +1,156 @@
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/******************************************************************************
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* 文件名：ds1302.c
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* 功能：DS1302 实时时钟驱动
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* 说明：提供读写 DS1302 的底层函数，以及时间和闹钟参数的存取。
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* 时间以 BCD 码格式存储于 TIME 数组中。
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* 硬件接口：DSIO=P3^4，RST=P3^5，SCLK=P3^6
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* 编译器：Keil C51
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******************************************************************************/
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#include"ds1302.h"
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/* DS1302 读写地址（存储顺序：秒、分、时、日、月、周、年） */
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uchar code READ_RTC_ADDR[7] = {0x81, 0x83, 0x85, 0x87, 0x89, 0x8b, 0x8d};
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uchar code WRITE_RTC_ADDR[7] = {0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c};
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/* DS1302 默认时间：2013 年 1 月 1 日 星期二 12:00:00 */
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/* 存储顺序：秒、分、时、日、月、周、年（BCD 码） */
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uchar TIME[7] = {0, 0, 0x12, 0x01, 0x01, 0x02, 0x13};
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/******************************************************************************
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* 函数名：Ds1302Write
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* 功能：向 DS1302 写入一字节数据（先写地址，再写数据）
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* 输入：addr = 寄存器地址，dat = 要写入的数据
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* 输出：无
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* 时序：RST 置高 → 写入 8 位地址（低位在前）→ 写入 8 位数据（低位在前）→ RST 置低
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******************************************************************************/
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void Ds1302Write(uchar addr, uchar dat)
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{
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uchar n;
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RST = 0;
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_nop_();
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SCLK = 0; /* 时钟先置低 */
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_nop_();
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RST = 1; /* 使能 DS1302 */
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_nop_();
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for(n = 0; n < 8; n++) /* 发送 8 位地址（低位在前） */
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{
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DSIO = addr & 0x01; /* 输出当前位 */
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addr >>= 1;
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SCLK = 1; /* 时钟上升沿，DS1302 锁存数据 */
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_nop_();
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SCLK = 0;
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_nop_();
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}
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for(n = 0; n < 8; n++) /* 发送 8 位数据（低位在前） */
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{
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DSIO = dat & 0x01;
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dat >>= 1;
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SCLK = 1;
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_nop_();
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SCLK = 0;
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_nop_();
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}
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RST = 0; /* 结束通信 */
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_nop_();
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}
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/******************************************************************************
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* 函数名：Ds1302Read
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* 功能：从 DS1302 读取一字节数据（先写地址，再读数据）
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* 输入：addr = 寄存器地址
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* 输出：返回读取到的数据
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* 时序：RST 置高 → 写入 8 位地址（低位在前）→ 读取 8 位数据（高位在前）→ RST 置低
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******************************************************************************/
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uchar Ds1302Read(uchar addr)
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{
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uchar n, dat, dat1;
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RST = 0;
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_nop_();
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SCLK = 0; /* 时钟先置低 */
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_nop_();
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RST = 1; /* 使能 DS1302 */
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_nop_();
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for(n = 0; n < 8; n++) /* 发送 8 位地址（低位在前） */
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{
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DSIO = addr & 0x01;
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addr >>= 1;
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SCLK = 1;
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_nop_();
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SCLK = 0; /* 下降沿后 DS1302 输出数据 */
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_nop_();
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}
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_nop_();
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for(n = 0; n < 8; n++) /* 读取 8 位数据（高位在前） */
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{
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dat1 = DSIO; /* 采样数据线 */
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dat = (dat >> 1) | (dat1 << 7); /* 高位在前，依次移入 */
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SCLK = 1;
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_nop_();
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SCLK = 0;
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_nop_();
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}
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RST = 0; /* 结束通信 */
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_nop_();
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SCLK = 1; /* 确保时序完整 */
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_nop_();
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DSIO = 0;
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_nop_();
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DSIO = 1;
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_nop_();
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return dat;
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}
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/******************************************************************************
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* 函数名：Ds1302Init
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* 功能：初始化 DS1302 时钟芯片
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* 输入：无
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* 输出：无
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* 说明：检查秒寄存器的 CH 位。如果 CH=1 表示时钟停止（首次上电），
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* 则关闭写保护并写入默认时间；如果 CH=0 表示时钟已在运行，跳过初始化。
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******************************************************************************/
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void Ds1302Init()
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{
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uchar n;
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uchar sec;
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sec = Ds1302Read(0x81); /* 读取秒寄存器，检查 CH 位（最高位） */
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if(!(sec & 0x80)) /* CH=0：时钟正在运行，无需初始化 */
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return;
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/* CH=1：时钟停止，系统首次上电，写入默认时间 */
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Ds1302Write(0x8E, 0x00); /* 关闭写保护 */
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for(n = 0; n < 7; n++)
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{
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Ds1302Write(WRITE_RTC_ADDR[n], TIME[n]);
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}
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Ds1302Write(0x8E, 0x80); /* 开启写保护 */
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}
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/******************************************************************************
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* 函数名：Ds1302ReadTime
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* 功能：读取 DS1302 当前时间到 TIME 数组
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* 输入：无
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* 输出：无（结果存入全局 TIME 数组）
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******************************************************************************/
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void Ds1302ReadTime()
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{
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uchar n;
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for(n = 0; n < 7; n++)
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{
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TIME[n] = Ds1302Read(READ_RTC_ADDR[n]);
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}
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}
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@@ -0,0 +1,37 @@
|
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/******************************************************************************
|
||||
* 文件名：ds1302.h
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||||
* 功能：DS1302 实时时钟驱动头文件
|
||||
* 硬件接口：DSIO = P3^4，RST = P3^5，SCLK = P3^6
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
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#ifndef __DS1302_H_
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#define __DS1302_H_
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#include<reg51.h>
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#include<intrins.h>
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|
||||
/* 自定义数据类型 */
|
||||
#ifndef uchar
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||||
#define uchar unsigned char
|
||||
#endif
|
||||
|
||||
#ifndef uint
|
||||
#define uint unsigned int
|
||||
#endif
|
||||
|
||||
/* DS1302 引脚定义 */
|
||||
sbit DSIO = P3^4; /* 数据线 */
|
||||
sbit RST = P3^5; /* 复位/使能引脚（CE） */
|
||||
sbit SCLK = P3^6; /* 串行时钟线 */
|
||||
|
||||
/* 函数声明 */
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||||
void Ds1302Write(uchar addr, uchar dat); /* 向 DS1302 写入一字节数据 */
|
||||
uchar Ds1302Read(uchar addr); /* 从 DS1302 读取一字节数据 */
|
||||
void Ds1302Init(void); /* 初始化 DS1302 时钟芯片 */
|
||||
void Ds1302ReadTime(void); /* 读取当前时间到 TIME 数组 */
|
||||
|
||||
/* 外部全局变量 */
|
||||
extern uchar TIME[7]; /* 时间缓冲区：秒、分、时、日、月、周、年（BCD 码） */
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,109 @@
|
||||
#include "ds18b20.h"
|
||||
|
||||
/*
|
||||
* ????????DS18B20_Reset
|
||||
* ???? ????¦ËDS18B20????????????
|
||||
* ???? ????
|
||||
* ??? ??1=?????0=??????
|
||||
*/
|
||||
bit DS18B20_Reset(void)
|
||||
{
|
||||
unsigned int i;
|
||||
unsigned char presence;
|
||||
|
||||
DS18B20_DQ = 0; /* ????????480~960us */
|
||||
for(i=250; i>0; i--); /* DJNZ???: 250*2=500us */
|
||||
DS18B20_DQ = 1; /* ????????DS18B20????15~60us??????60~240us */
|
||||
for(i=10; i>0; i--); /* DJNZ: 10*2=20us, ?????????? */
|
||||
|
||||
presence = DS18B20_DQ; /* ???????????(0=?????1=??????) */
|
||||
|
||||
for(i=200; i>0; i--); /* DJNZ: 200*2=400us, ????????? */
|
||||
|
||||
return (presence == 0); /* ????1?????????????? */
|
||||
}
|
||||
|
||||
/*
|
||||
* ????????DS18B20_WriteByte
|
||||
* ???? ????DS18B20§Õ????????(LSB????)
|
||||
* ???? ??dat=?§Õ???????
|
||||
* ??? ????
|
||||
*/
|
||||
void DS18B20_WriteByte(uchar dat)
|
||||
{
|
||||
unsigned char i, j;
|
||||
|
||||
for(i=0; i<8; i++)
|
||||
{
|
||||
DS18B20_DQ = 0; /* ??????????§Õ?? */
|
||||
if(dat & 0x01) /* §Õ1????????? */
|
||||
DS18B20_DQ = 1;
|
||||
else /* §Õ0?????????? */
|
||||
DS18B20_DQ = 0;
|
||||
for(j=35; j>0; j--); /* DJNZ: 35*2=70us, ?????>=60us */
|
||||
DS18B20_DQ = 1; /* ??????? */
|
||||
dat >>= 1; /* ???¦Ë(LSB first) */
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* ????????DS18B20_ReadByte
|
||||
* ???? ????DS18B20?????????(LSB????)
|
||||
* ???? ????
|
||||
* ??? ????????????
|
||||
*/
|
||||
uchar DS18B20_ReadByte(void)
|
||||
{
|
||||
unsigned char i, j, dat = 0;
|
||||
|
||||
for(i=0; i<8; i++)
|
||||
{
|
||||
DS18B20_DQ = 0; /* ?????????????? */
|
||||
DS18B20_DQ = 1; /* ??????? */
|
||||
for(j=7; j>0; j--); /* DJNZ: 7*2=14us, ???DS18B20???????(~15us) */
|
||||
|
||||
dat >>= 1; /* ?????¦Ë */
|
||||
if(DS18B20_DQ)
|
||||
dat |= 0x80; /* LSB first?????????????¦Ë??????¦Ë */
|
||||
|
||||
for(j=23; j>0; j--); /* DJNZ: 23*2=46us, ?????>=60us */
|
||||
}
|
||||
return dat;
|
||||
}
|
||||
|
||||
/*
|
||||
* ????????DS18B20_StartConvert
|
||||
* ???? ??????DS18B20??????
|
||||
* ???? ????
|
||||
* ??? ????
|
||||
*/
|
||||
void DS18B20_StartConvert(void)
|
||||
{
|
||||
if(!DS18B20_Reset()) return; /* ??¦Ë???????? */
|
||||
DS18B20_WriteByte(0xCC); /* ????ROM */
|
||||
DS18B20_WriteByte(0x44); /* ????????? */
|
||||
}
|
||||
|
||||
/*
|
||||
* ????????DS18B20_ReadTemp
|
||||
* ???? ?????DS18B20??????(16¦Ë)
|
||||
* ???? ??temp=??????????????
|
||||
* ??? ??1=????????0=DS18B20¦Ä???
|
||||
*/
|
||||
bit DS18B20_ReadTemp(int *temp)
|
||||
{
|
||||
uchar tempL, tempH;
|
||||
int raw;
|
||||
|
||||
if(!DS18B20_Reset()) return 0; /* ??¦Ë???????? */
|
||||
DS18B20_WriteByte(0xCC); /* ????ROM */
|
||||
DS18B20_WriteByte(0xBE); /* ??????? */
|
||||
|
||||
tempL = DS18B20_ReadByte(); /* ?????????? */
|
||||
tempH = DS18B20_ReadByte(); /* ?????????? */
|
||||
|
||||
raw = (tempH << 8) | tempL; /* ???16¦Ë???? */
|
||||
*temp = raw;
|
||||
|
||||
return 1;
|
||||
}
|
||||
@@ -0,0 +1,26 @@
|
||||
#ifndef __DS18B20_H_
|
||||
#define __DS18B20_H_
|
||||
|
||||
#include<reg51.h>
|
||||
#include<intrins.h>
|
||||
|
||||
/* ????????????? */
|
||||
#ifndef uchar
|
||||
#define uchar unsigned char
|
||||
#endif
|
||||
|
||||
#ifndef uint
|
||||
#define uint unsigned int
|
||||
#endif
|
||||
|
||||
/* DS18B20????????????? */
|
||||
sbit DS18B20_DQ = P3^7;
|
||||
|
||||
/* ???????? */
|
||||
bit DS18B20_Reset(void); /* ??¦ËDS18B20???????? */
|
||||
void DS18B20_WriteByte(uchar dat); /* §Õ???????? */
|
||||
uchar DS18B20_ReadByte(void); /* ????????? */
|
||||
void DS18B20_StartConvert(void); /* ????????? */
|
||||
bit DS18B20_ReadTemp(int *temp); /* ????????? */
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,151 @@
|
||||
/******************************************************************************
|
||||
* 文件名：lcd.c
|
||||
* 功能：LCD1602 液晶显示驱动
|
||||
* 说明：支持 4 位和 8 位数据总线模式，由 LCD1602_4PINS 宏控制。
|
||||
* 当前使用 4 位模式，RS=P2^6，RW=P2^5，EN=P2^7，数据口=P0。
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
|
||||
#include"lcd.h"
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：Lcd1602_Delay1ms
|
||||
* 功能：毫秒级延时函数（12MHz 晶振，12T 模式）
|
||||
* 输入：c = 延时毫秒数
|
||||
* 输出：无
|
||||
******************************************************************************/
|
||||
void Lcd1602_Delay1ms(uint c)
|
||||
{
|
||||
uchar a, b;
|
||||
for(; c > 0; c--)
|
||||
{
|
||||
for(b = 199; b > 0; b--)
|
||||
{
|
||||
for(a = 1; a > 0; a--);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：LcdWriteCom
|
||||
* 功能：向 LCD1602 写入一个 8 位指令
|
||||
* 输入：com = 指令字节
|
||||
* 输出：无
|
||||
* 说明：根据是否定义 LCD1602_4PINS，编译为 4 位或 8 位模式
|
||||
******************************************************************************/
|
||||
#ifndef LCD1602_4PINS /* 8 位数据线模式 */
|
||||
|
||||
void LcdWriteCom(uchar com)
|
||||
{
|
||||
LCD1602_E = 0; /* 使能信号置低 */
|
||||
LCD1602_RS = 0; /* 选择指令寄存器 */
|
||||
LCD1602_RW = 0; /* 选择写操作 */
|
||||
|
||||
LCD1602_DATAPINS = com; /* 输出指令字节 */
|
||||
Lcd1602_Delay1ms(1); /* 等待数据稳定 */
|
||||
|
||||
LCD1602_E = 1; /* 产生使能脉冲 */
|
||||
Lcd1602_Delay1ms(5); /* 保持高电平 */
|
||||
LCD1602_E = 0;
|
||||
}
|
||||
|
||||
#else /* 4 位数据线模式 */
|
||||
|
||||
void LcdWriteCom(uchar com)
|
||||
{
|
||||
LCD1602_E = 0;
|
||||
LCD1602_RS = 0;
|
||||
LCD1602_RW = 0;
|
||||
|
||||
LCD1602_DATAPINS = com; /* 先送高 4 位 */
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 1;
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 0;
|
||||
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_DATAPINS = com << 4; /* 再送低 4 位 */
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 1;
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：LcdWriteData
|
||||
* 功能：向 LCD1602 写入一个 8 位数据
|
||||
* 输入：dat = 数据字节
|
||||
* 输出：无
|
||||
******************************************************************************/
|
||||
#ifndef LCD1602_4PINS /* 8 位数据线模式 */
|
||||
|
||||
void LcdWriteData(uchar dat)
|
||||
{
|
||||
LCD1602_E = 0; /* 使能信号置低 */
|
||||
LCD1602_RS = 1; /* 选择数据寄存器 */
|
||||
LCD1602_RW = 0; /* 选择写操作 */
|
||||
|
||||
LCD1602_DATAPINS = dat; /* 输出数据字节 */
|
||||
Lcd1602_Delay1ms(1);
|
||||
|
||||
LCD1602_E = 1; /* 产生使能脉冲 */
|
||||
Lcd1602_Delay1ms(5);
|
||||
LCD1602_E = 0;
|
||||
}
|
||||
|
||||
#else /* 4 位数据线模式 */
|
||||
|
||||
void LcdWriteData(uchar dat)
|
||||
{
|
||||
LCD1602_E = 0;
|
||||
LCD1602_RS = 1;
|
||||
LCD1602_RW = 0;
|
||||
|
||||
LCD1602_DATAPINS = dat; /* 先送高 4 位 */
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 1;
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 0;
|
||||
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_DATAPINS = dat << 4; /* 再送低 4 位 */
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 1;
|
||||
Lcd1602_Delay1ms(1);
|
||||
LCD1602_E = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：LcdInit
|
||||
* 功能：LCD1602 初始化（设置显示模式、开显示、清屏）
|
||||
* 输入：无
|
||||
* 输出：无
|
||||
******************************************************************************/
|
||||
#ifndef LCD1602_4PINS /* 8 位数据线模式初始化 */
|
||||
|
||||
void LcdInit()
|
||||
{
|
||||
LcdWriteCom(0x38); /* 设置显示模式：16x2、5x7 点阵、8 位数据 */
|
||||
LcdWriteCom(0x0c); /* 开显示，不显示光标 */
|
||||
LcdWriteCom(0x06); /* 写入数据后地址自动加 1 */
|
||||
LcdWriteCom(0x01); /* 清屏 */
|
||||
LcdWriteCom(0x80); /* 设置 DDRAM 起始地址为 0x00（第一行） */
|
||||
}
|
||||
|
||||
#else /* 4 位数据线模式初始化 */
|
||||
|
||||
void LcdInit()
|
||||
{
|
||||
LcdWriteCom(0x32); /* 从 8 位模式切换为 4 位模式 */
|
||||
LcdWriteCom(0x28); /* 4 位模式下设置显示模式 */
|
||||
LcdWriteCom(0x0c); /* 开显示，不显示光标 */
|
||||
LcdWriteCom(0x06); /* 写入数据后地址自动加 1 */
|
||||
LcdWriteCom(0x01); /* 清屏 */
|
||||
LcdWriteCom(0x80); /* 设置 DDRAM 起始地址为 0x00（第一行） */
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,39 @@
|
||||
/******************************************************************************
|
||||
* 文件名：lcd.h
|
||||
* 功能：LCD1602 液晶驱动头文件
|
||||
* 硬件接口：4 位数据总线模式
|
||||
* RS = P2^6，RW = P2^5，EN = P2^7，数据口 = P0
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
|
||||
#ifndef __LCD_H_
|
||||
#define __LCD_H_
|
||||
|
||||
/* 使用 4 位数据线模式（注释此行则使用 8 位模式） */
|
||||
#define LCD1602_4PINS
|
||||
|
||||
/* 标准头文件 */
|
||||
#include<reg51.h>
|
||||
|
||||
/* 自定义数据类型 */
|
||||
#ifndef uchar
|
||||
#define uchar unsigned char
|
||||
#endif
|
||||
|
||||
#ifndef uint
|
||||
#define uint unsigned int
|
||||
#endif
|
||||
|
||||
/* LCD 引脚定义 */
|
||||
#define LCD1602_DATAPINS P0 /* LCD 数据口（P0 口） */
|
||||
sbit LCD1602_E = P2^7; /* 使能信号 */
|
||||
sbit LCD1602_RW = P2^5; /* 读写选择：0=写，1=读 */
|
||||
sbit LCD1602_RS = P2^6; /* 寄存器选择：0=指令，1=数据 */
|
||||
|
||||
/* 函数声明 */
|
||||
void Lcd1602_Delay1ms(uint c); /* 毫秒延时（12MHz 晶振） */
|
||||
void LcdWriteCom(uchar com); /* 写入 8 位指令 */
|
||||
void LcdWriteData(uchar dat); /* 写入 8 位数据 */
|
||||
void LcdInit(void); /* 初始化 LCD1602 */
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,603 @@
|
||||
/******************************************************************************
|
||||
* 文件名：main.c
|
||||
* 功能：DS1302 实时时钟 + DS18B20 温度采集 + LCD1602 显示
|
||||
* 支持按键切换时钟/秒表模式，可设置时间。
|
||||
* 硬件配置：
|
||||
* LCD1602（4 位模式）：RS=P2^6, RW=P2^5, EN=P2^7, 数据口=P0
|
||||
* DS1302：DSIO=P3^4, RST=P3^5, SCLK=P3^6
|
||||
* DS18B20：DQ=P3^7
|
||||
* 按键：K1=P3^1, K2=P3^0, K3=P3^2, K4=P3^3
|
||||
* 蜂鸣器/报警：已禁用（函数为空）
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
|
||||
#include<reg51.h>
|
||||
#include<intrins.h>
|
||||
#include"lcd.h"
|
||||
#include"ds1302.h"
|
||||
#include"temp.h"
|
||||
|
||||
|
||||
/*========================== 引脚定义 ==========================*/
|
||||
|
||||
sbit K1 = P3^1; /* 模式切换/确认键 */
|
||||
sbit K2 = P3^0; /* 切换/返回键 */
|
||||
sbit K3 = P3^2; /* 加/开始暂停键 */
|
||||
sbit K4 = P3^3; /* 减/清零键 */
|
||||
|
||||
|
||||
/*========================== 全局变量 ==========================*/
|
||||
|
||||
unsigned char mode = 0; /* 工作模式：0=时钟，2=秒表 */
|
||||
unsigned char last_mode = 0xFF; /* 前一次模式，用于检测模式切换 */
|
||||
int temperature = 0; /* 温度值（放大 10 倍，如 253 表示 25.3°C） */
|
||||
unsigned char temp_state = 0; /* 温度采集状态机：0=空闲，1=转换中 */
|
||||
unsigned int temp_wait = 0; /* 温度转换等待计数器 */
|
||||
|
||||
unsigned char alarm_hour = 6; /* 闹钟小时 */
|
||||
unsigned char alarm_min = 0; /* 闹钟分钟 */
|
||||
unsigned char alarm_on = 0; /* 闹钟开关：0=关，1=开 */
|
||||
|
||||
unsigned int sw_sec = 0; /* 秒表累计秒数 */
|
||||
unsigned char sw_csec = 0; /* 秒表百分秒（0~99） */
|
||||
bit sw_running = 0; /* 秒表运行状态：0=停止，1=运行 */
|
||||
|
||||
|
||||
/*========================== 宏定义 ==========================*/
|
||||
|
||||
/* BCD 码转十进制：0x12 → 12 */
|
||||
#define BCD2DEC(bcd) (((bcd)>>4)*10 + ((bcd)&0x0f))
|
||||
|
||||
/* 十进制转 BCD 码：12 → 0x12 */
|
||||
#define DEC2BCD(dec) (((dec)/10<<4) | ((dec)%10))
|
||||
|
||||
|
||||
/*========================== 函数声明 ==========================*/
|
||||
|
||||
void Delay10ms(void);
|
||||
|
||||
void Timer1Init(void);
|
||||
void TempPros(void);
|
||||
void AlarmJudge(void);
|
||||
void AlarmBuzPro(void);
|
||||
void SetTime(void);
|
||||
void LcdFramework(void);
|
||||
void LcdUpdate(void);
|
||||
void KeyScan(void);
|
||||
|
||||
|
||||
/*======================= 按键检测函数 ========================*/
|
||||
|
||||
/*
|
||||
* K1_Pressed：检测 K1 键是否被按下
|
||||
* 功能：软件消抖，等待按键释放后返回 1
|
||||
* 返回：1=按下了 K1，0=未按下
|
||||
*/
|
||||
bit K1_Pressed(void)
|
||||
{
|
||||
if(K1) return 0; /* 首次检测，高电平表示未按下 */
|
||||
Delay10ms(); /* 软件消抖 */
|
||||
if(K1) return 0; /* 再次检测，确认按下 */
|
||||
while(!K1); /* 等待按键释放 */
|
||||
return 1; /* 有效按下 */
|
||||
}
|
||||
|
||||
/*
|
||||
* K2_Pressed：检测 K2 键是否被按下
|
||||
*/
|
||||
bit K2_Pressed(void)
|
||||
{
|
||||
if(K2) return 0;
|
||||
Delay10ms();
|
||||
if(K2) return 0;
|
||||
while(!K2);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* K3_Pressed：检测 K3 键是否被按下
|
||||
*/
|
||||
bit K3_Pressed(void)
|
||||
{
|
||||
if(K3) return 0;
|
||||
Delay10ms();
|
||||
if(K3) return 0;
|
||||
while(!K3);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* K4_Pressed：检测 K4 键是否被按下
|
||||
*/
|
||||
bit K4_Pressed(void)
|
||||
{
|
||||
if(K4) return 0;
|
||||
Delay10ms();
|
||||
if(K4) return 0;
|
||||
while(!K4);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
/*===================== LCD 辅助函数 ======================*/
|
||||
|
||||
/*
|
||||
* LcdWriteStr：在 LCD 当前位置显示字符串
|
||||
* 输入：str = 指向 code 区字符串的指针
|
||||
*/
|
||||
void LcdWriteStr(unsigned char code *str)
|
||||
{
|
||||
while(*str) LcdWriteData(*str++);
|
||||
}
|
||||
|
||||
/*
|
||||
* LcdShowNumAt：在 LCD 指定位置显示两位十进制数
|
||||
* 输入：addr = DDRAM 地址，num = 要显示的数值（0~99）
|
||||
*/
|
||||
void LcdShowNumAt(unsigned char addr, unsigned char num)
|
||||
{
|
||||
LcdWriteCom(addr);
|
||||
LcdWriteData('0' + num / 10); /* 十位 ASCII 码 */
|
||||
LcdWriteData('0' + num % 10); /* 个位 ASCII 码 */
|
||||
}
|
||||
|
||||
/*
|
||||
* AdjustValue：通用参数调节函数
|
||||
* 功能：在指定位置显示数值，K3/K4 加减，K1 确认退出
|
||||
* 光标停留在数值的最后一位上。
|
||||
* 输入：val = 待调节变量指针
|
||||
* maxVal = 最大值
|
||||
* dispAddr = 显示地址
|
||||
* cursorAddr = 光标地址（函数内会自动加 1 移到末位）
|
||||
*/
|
||||
void AdjustValue(unsigned char *val, unsigned char maxVal,
|
||||
unsigned char dispAddr, unsigned char cursorAddr)
|
||||
{
|
||||
LcdWriteCom(cursorAddr + 1); /* 光标放在数值最后一位 */
|
||||
LcdWriteCom(0x0f); /* 显示闪烁光标 */
|
||||
|
||||
while(1)
|
||||
{
|
||||
if(K3_Pressed()) /* K3：加 */
|
||||
{
|
||||
if(*val < maxVal) (*val)++;
|
||||
else *val = 0;
|
||||
LcdShowNumAt(dispAddr, *val);
|
||||
LcdWriteCom(cursorAddr + 1); /* 光标回到末位 */
|
||||
LcdWriteCom(0x0f);
|
||||
}
|
||||
if(K4_Pressed()) /* K4：减 */
|
||||
{
|
||||
if(*val > 0) (*val)--;
|
||||
else *val = maxVal;
|
||||
LcdShowNumAt(dispAddr, *val);
|
||||
LcdWriteCom(cursorAddr + 1);
|
||||
LcdWriteCom(0x0f);
|
||||
}
|
||||
if(K1_Pressed()) /* K1：确认退出 */
|
||||
{
|
||||
LcdWriteCom(0x0c); /* 关闭光标 */
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*========================== 主函数 ==========================*/
|
||||
|
||||
void main()
|
||||
{
|
||||
Timer1Init(); /* 初始化定时器 1（用于秒表计时） */
|
||||
LcdInit(); /* 初始化 LCD1602 液晶 */
|
||||
|
||||
Ds1302Init(); /* 初始化 DS1302 时钟芯片 */
|
||||
|
||||
/* 从 DS1302 RAM 读取闹钟参数（上电保持） */
|
||||
alarm_hour = Ds1302Read(0xC1);
|
||||
if(alarm_hour > 23) alarm_hour = 6; /* 数据异常时使用默认值 */
|
||||
alarm_min = Ds1302Read(0xC3);
|
||||
if(alarm_min > 59) alarm_min = 0;
|
||||
alarm_on = Ds1302Read(0xC5);
|
||||
if(alarm_on > 1) alarm_on = 0;
|
||||
|
||||
/* 主循环 */
|
||||
while(1)
|
||||
{
|
||||
Ds1302ReadTime(); /* 读取 DS1302 当前时间到 TIME 数组 */
|
||||
|
||||
TempPros(); /* 温度采集状态机（非阻塞式） */
|
||||
|
||||
/* 模式切换时刷新 LCD 静态框架 */
|
||||
if(mode != last_mode)
|
||||
{
|
||||
LcdFramework();
|
||||
last_mode = mode;
|
||||
}
|
||||
|
||||
AlarmJudge(); /* 闹钟判断（当前为空函数） */
|
||||
AlarmBuzPro(); /* 蜂鸣器驱动（当前为空函数） */
|
||||
KeyScan(); /* 按键扫描 */
|
||||
LcdUpdate(); /* 刷新 LCD 动态显示 */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ShowLcdWeek：在 LCD 当前位置显示星期缩写
|
||||
* 输入：week = 1~7（对应 Sunday~Saturday）
|
||||
*/
|
||||
void ShowLcdWeek(unsigned char week)
|
||||
{
|
||||
switch(week)
|
||||
{
|
||||
case 1: LcdWriteData('S'); LcdWriteData('u'); LcdWriteData('n'); break; /* Sunday */
|
||||
case 2: LcdWriteData('M'); LcdWriteData('o'); LcdWriteData('n'); break; /* Monday */
|
||||
case 3: LcdWriteData('T'); LcdWriteData('u'); LcdWriteData('e'); break; /* Tuesday */
|
||||
case 4: LcdWriteData('W'); LcdWriteData('e'); LcdWriteData('d'); break; /* Wednesday */
|
||||
case 5: LcdWriteData('T'); LcdWriteData('h'); LcdWriteData('u'); break; /* Thursday */
|
||||
case 6: LcdWriteData('F'); LcdWriteData('r'); LcdWriteData('i'); break; /* Friday */
|
||||
case 7: LcdWriteData('S'); LcdWriteData('a'); LcdWriteData('t'); break; /* Saturday */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*===================== LCD 框架刷新 ======================*/
|
||||
|
||||
/*
|
||||
* LcdFramework：刷新 LCD 静态框架
|
||||
* 功能：根据当前模式，绘制 LCD 的固定显示内容
|
||||
* 模式 0（时钟）：显示日期和时间占位符
|
||||
* 模式 2（秒表）：显示秒表标题和数字占位符
|
||||
*/
|
||||
void LcdFramework()
|
||||
{
|
||||
LcdWriteCom(0x0c); /* 关闭光标 */
|
||||
|
||||
if(mode == 0) /* 时钟模式 */
|
||||
{
|
||||
LcdWriteCom(0x80);
|
||||
LcdWriteStr("20 - - "); /* 第一行：年-月-日 */
|
||||
LcdWriteCom(0xC0);
|
||||
LcdWriteStr(" : : "); /* 第二行：时:分:秒 + 温度 */
|
||||
}
|
||||
else if(mode == 2) /* 秒表模式 */
|
||||
{
|
||||
LcdWriteCom(0x80);
|
||||
LcdWriteStr(" Stop Watch "); /* 第一行：标题居中 */
|
||||
LcdWriteCom(0xC0);
|
||||
LcdWriteStr(" : : . "); /* 第二行：HH:MM:SS.cs 居中 */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*======================= LCD 动态更新 ========================*/
|
||||
|
||||
/*
|
||||
* LcdUpdate：刷新 LCD 动态显示数据
|
||||
* 功能：根据当前模式，更新温度/时间/秒表等动态数值
|
||||
* 时钟模式显示年月日时分秒星期和温度
|
||||
* 秒表模式显示时、分、秒、百分秒
|
||||
*/
|
||||
void LcdUpdate()
|
||||
{
|
||||
int temp_disp;
|
||||
|
||||
if(mode == 0) /* 时钟模式 */
|
||||
{
|
||||
/* 显示日期 */
|
||||
LcdShowNumAt(0x82, BCD2DEC(TIME[6])); /* 年 */
|
||||
LcdShowNumAt(0x85, BCD2DEC(TIME[4])); /* 月 */
|
||||
LcdShowNumAt(0x88, BCD2DEC(TIME[3])); /* 日 */
|
||||
|
||||
/* 显示星期 */
|
||||
LcdWriteCom(0x8C);
|
||||
ShowLcdWeek(TIME[5] & 0x07);
|
||||
|
||||
/* 显示时间 */
|
||||
LcdShowNumAt(0xC0, BCD2DEC(TIME[2])); /* 时 */
|
||||
LcdShowNumAt(0xC3, BCD2DEC(TIME[1])); /* 分 */
|
||||
LcdShowNumAt(0xC6, BCD2DEC(TIME[0])); /* 秒 */
|
||||
|
||||
/* 显示温度：格式 "-12.3C" 或 " 25.0C" */
|
||||
LcdWriteCom(0xC9);
|
||||
temp_disp = temperature;
|
||||
if(temp_disp < 0)
|
||||
{
|
||||
LcdWriteData('-');
|
||||
temp_disp = -temp_disp;
|
||||
}
|
||||
else
|
||||
{
|
||||
LcdWriteData(' '); /* 正数前留空格 */
|
||||
}
|
||||
LcdWriteData('0' + temp_disp / 100); /* 十位 */
|
||||
LcdWriteData('0' + (temp_disp / 10) % 10); /* 个位 */
|
||||
LcdWriteData('.'); /* 小数点 */
|
||||
LcdWriteData('0' + temp_disp % 10); /* 十分位 */
|
||||
LcdWriteData('C'); /* 单位 */
|
||||
}
|
||||
else if(mode == 2) /* 秒表模式 */
|
||||
{
|
||||
/* 居中显示，位置 0xC2/0xC5/0xC8/0xCB */
|
||||
LcdShowNumAt(0xC2, sw_sec / 3600); /* 小时 */
|
||||
LcdShowNumAt(0xC5, (sw_sec % 3600) / 60); /* 分钟 */
|
||||
LcdShowNumAt(0xC8, sw_sec % 60); /* 秒钟 */
|
||||
LcdShowNumAt(0xCB, sw_csec); /* 百分秒 */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*========================== 按键扫描 ==========================*/
|
||||
|
||||
/*
|
||||
* KeyScan：按键扫描处理
|
||||
* 功能：根据当前模式处理按键事件
|
||||
* 时钟模式：K1=设置时间，K2=切换到秒表
|
||||
* 秒表模式：K3=启动/暂停，K4=清零（暂停时），K2=返回时钟
|
||||
*/
|
||||
void KeyScan()
|
||||
{
|
||||
if(mode == 0) /* 时钟模式 */
|
||||
{
|
||||
if(K1_Pressed()) /* K1：进入时间设置 */
|
||||
{
|
||||
SetTime();
|
||||
last_mode = 0xFF; /* 强制刷新 LCD */
|
||||
}
|
||||
if(K2_Pressed()) /* K2：切换到秒表 */
|
||||
{
|
||||
mode = 2;
|
||||
sw_running = 0;
|
||||
sw_sec = 0;
|
||||
sw_csec = 0;
|
||||
LcdFramework();
|
||||
last_mode = mode;
|
||||
LcdUpdate();
|
||||
}
|
||||
}
|
||||
else if(mode == 2) /* 秒表模式 */
|
||||
{
|
||||
if(K3_Pressed()) /* K3：启动/暂停秒表 */
|
||||
{
|
||||
sw_running = !sw_running;
|
||||
TR1 = sw_running; /* TR1 控制定时器 1 的启停 */
|
||||
}
|
||||
if(K4_Pressed()) /* K4：暂停时清零 */
|
||||
{
|
||||
if(!sw_running)
|
||||
{
|
||||
sw_sec = 0;
|
||||
sw_csec = 0;
|
||||
}
|
||||
}
|
||||
if(K2_Pressed()) /* K2：返回时钟模式 */
|
||||
{
|
||||
mode = 0;
|
||||
TR1 = 0;
|
||||
sw_running = 0;
|
||||
sw_sec = 0;
|
||||
sw_csec = 0;
|
||||
LcdFramework();
|
||||
last_mode = mode;
|
||||
LcdUpdate();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*========================== 时间设置 ==========================*/
|
||||
|
||||
/*
|
||||
* SetTime：时间和日期设置
|
||||
* 功能：对年、月、日、时、分、秒逐一进行调节，
|
||||
* 星期通过 K3/K4 手动调节，完成后全部写入 DS1302。
|
||||
* 操作：K1 切换调节字段，K3/K4 加减，调节完秒后自动写入。
|
||||
*/
|
||||
void SetTime()
|
||||
{
|
||||
unsigned char y, mo, d, w, h, mi, s;
|
||||
|
||||
/* 将 TIME 数组中的 BCD 码转换为十进制 */
|
||||
y = BCD2DEC(TIME[6]);
|
||||
mo = BCD2DEC(TIME[4]);
|
||||
d = BCD2DEC(TIME[3]);
|
||||
w = TIME[5] & 0x07;
|
||||
h = BCD2DEC(TIME[2]);
|
||||
mi = BCD2DEC(TIME[1]);
|
||||
s = BCD2DEC(TIME[0]);
|
||||
|
||||
/* 绘制设置界面 */
|
||||
LcdWriteCom(0x80);
|
||||
LcdWriteStr("20 - - "); /* 第一行：20YY-MM-DD */
|
||||
LcdWriteCom(0xC0);
|
||||
LcdWriteStr(" : : "); /* 第二行：HH:MM:SS */
|
||||
|
||||
/* 显示当前时间 */
|
||||
LcdShowNumAt(0x82, y); /* 年 */
|
||||
LcdShowNumAt(0x85, mo); /* 月 */
|
||||
LcdShowNumAt(0x88, d); /* 日 */
|
||||
LcdWriteCom(0x8C); ShowLcdWeek(w); /* 星期 */
|
||||
LcdShowNumAt(0xC0, h); /* 时 */
|
||||
LcdShowNumAt(0xC3, mi); /* 分 */
|
||||
LcdShowNumAt(0xC6, s); /* 秒 */
|
||||
|
||||
/* 逐一调节数值（K3/K4 加减，K1 跳到下一项） */
|
||||
AdjustValue(&y, 99, 0x82, 0x82); /* 年 */
|
||||
AdjustValue(&mo, 12, 0x85, 0x85); /* 月 */
|
||||
AdjustValue(&d, 31, 0x88, 0x88); /* 日 */
|
||||
AdjustValue(&h, 23, 0xC0, 0xC0); /* 时 */
|
||||
AdjustValue(&mi, 59, 0xC3, 0xC3); /* 分 */
|
||||
AdjustValue(&s, 59, 0xC6, 0xC6); /* 秒 */
|
||||
|
||||
/* 手动调节星期 */
|
||||
LcdWriteCom(0x8E); LcdWriteCom(0x0f); /* 光标在星期最后一位 */
|
||||
while(1)
|
||||
{
|
||||
if(K3_Pressed())
|
||||
{
|
||||
if(w < 7) w++; else w = 1;
|
||||
LcdWriteCom(0x8C); ShowLcdWeek(w);
|
||||
LcdWriteCom(0x8E); LcdWriteCom(0x0f);
|
||||
}
|
||||
if(K4_Pressed())
|
||||
{
|
||||
if(w > 1) w--; else w = 7;
|
||||
LcdWriteCom(0x8C); ShowLcdWeek(w);
|
||||
LcdWriteCom(0x8E); LcdWriteCom(0x0f);
|
||||
}
|
||||
if(K1_Pressed()) { break; }
|
||||
}
|
||||
|
||||
/* 将调整后的值转回 BCD 码写入 TIME 数组 */
|
||||
TIME[6] = DEC2BCD(y);
|
||||
TIME[4] = DEC2BCD(mo);
|
||||
TIME[3] = DEC2BCD(d);
|
||||
TIME[5] = w;
|
||||
TIME[2] = DEC2BCD(h);
|
||||
TIME[1] = DEC2BCD(mi);
|
||||
TIME[0] = DEC2BCD(s);
|
||||
|
||||
/* 写入 DS1302 */
|
||||
Ds1302Write(0x8E, 0x00); /* 关闭写保护 */
|
||||
Ds1302Write(0x80, TIME[0]); /* 秒 */
|
||||
Ds1302Write(0x82, TIME[1]); /* 分 */
|
||||
Ds1302Write(0x84, TIME[2]); /* 时 */
|
||||
Ds1302Write(0x86, TIME[3]); /* 日 */
|
||||
Ds1302Write(0x88, TIME[4]); /* 月 */
|
||||
Ds1302Write(0x8a, TIME[5]); /* 周 */
|
||||
Ds1302Write(0x8c, TIME[6]); /* 年 */
|
||||
Ds1302Write(0x8E, 0x80); /* 开启写保护 */
|
||||
|
||||
/* 恢复显示 */
|
||||
LcdWriteCom(0x0c); /* 关闭光标 */
|
||||
last_mode = 0xFF; /* 强制刷新 LCD */
|
||||
}
|
||||
|
||||
|
||||
/*========================= 定时器初始化 =========================*/
|
||||
|
||||
/*
|
||||
* Timer1Init：初始化定时器 1
|
||||
* 功能：配置 T1 为模式 1（16 位定时器），启用中断
|
||||
* 用于秒表计时，每 10ms 中断一次
|
||||
*/
|
||||
void Timer1Init()
|
||||
{
|
||||
TMOD &= 0x0F; /* 清空 T1 相关位 */
|
||||
TMOD |= 0x10; /* 设置 T1 为模式 1（16 位定时器） */
|
||||
ET1 = 1; /* 使能 T1 中断 */
|
||||
EA = 1; /* 开启总中断 */
|
||||
}
|
||||
|
||||
|
||||
/*====================== 定时器 1 中断服务 ======================*/
|
||||
|
||||
/*
|
||||
* Timer1：定时器 1 中断服务函数
|
||||
* 功能：每 10ms 中断一次（12MHz 晶振），秒表运行时累加百分秒
|
||||
* 百分秒到 100 时进位 1 秒
|
||||
*/
|
||||
void Timer1() interrupt 3
|
||||
{
|
||||
TH1 = 0xD8; /* 重装初值：定时 10ms */
|
||||
TL1 = 0xF0;
|
||||
|
||||
if(sw_running) /* 秒表正在运行时才累加 */
|
||||
{
|
||||
sw_csec++;
|
||||
if(sw_csec >= 100) /* 百分秒满 100 进 1 秒 */
|
||||
{
|
||||
sw_csec = 0;
|
||||
sw_sec++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*======================= 温度采集 ========================*/
|
||||
|
||||
/*
|
||||
* TempPros：温度采集状态机（非阻塞式）
|
||||
* 功能：分两步完成温度采集，避免长时间阻塞主循环
|
||||
* state=0：发送转换命令（复位→0xCC→0x44），切换到等待状态
|
||||
* state=1：等待约 800ms（40 次主循环），然后读取温度
|
||||
* （复位→0xCC→0xBE→读 2 字节→计算→回 state=0）
|
||||
* 说明：DS18B20 在 12 位分辨率下需要最长 750ms 完成转换，
|
||||
* 等待期间主循环正常运行（按键响应、显示刷新不受影响）。
|
||||
*/
|
||||
void TempPros()
|
||||
{
|
||||
unsigned char tmL, tmH;
|
||||
int raw;
|
||||
unsigned char sign = 0;
|
||||
|
||||
if(temp_state == 0)
|
||||
{
|
||||
/* 第一步：启动温度转换 */
|
||||
Ds18b20Init();
|
||||
Ds18b20WriteByte(0xCC); /* 跳过 ROM（单设备模式） */
|
||||
Ds18b20WriteByte(0x44); /* 启动温度转换命令 */
|
||||
temp_state = 1; /* 切换到等待状态 */
|
||||
temp_wait = 0;
|
||||
}
|
||||
else if(temp_state == 1)
|
||||
{
|
||||
/* 第二步：等待转换完成 */
|
||||
temp_wait++;
|
||||
if(temp_wait >= 40) /* 约 800ms（每循环 ~20ms） */
|
||||
{
|
||||
Ds18b20Init();
|
||||
Ds18b20WriteByte(0xCC); /* 跳过 ROM */
|
||||
Ds18b20WriteByte(0xBE); /* 读取暂存器命令 */
|
||||
tmL = Ds18b20ReadByte();/* 读取温度低字节 */
|
||||
tmH = Ds18b20ReadByte();/* 读取温度高字节 */
|
||||
raw = (tmH << 8) | tmL; /* 合并为 16 位原始值 */
|
||||
|
||||
/* 负数处理：符号位为 1 时取反加 1 */
|
||||
if(raw & 0x8000)
|
||||
{
|
||||
raw = ~raw + 1;
|
||||
sign = 1;
|
||||
}
|
||||
|
||||
/* 转换为放大 10 倍的温度值：原始值 × 10 / 16 */
|
||||
temperature = raw * 10 / 16;
|
||||
if(sign)
|
||||
temperature = -temperature;
|
||||
|
||||
temp_state = 0; /* 回到空闲状态，准备下一次采集 */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*======================== 闹钟/蜂鸣器 ========================*/
|
||||
|
||||
/*
|
||||
* AlarmJudge：闹钟判断函数（蜂鸣器已损坏，保留为空）
|
||||
*/
|
||||
void AlarmJudge(void)
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* AlarmBuzPro：蜂鸣器驱动函数（蜂鸣器已损坏，保留为空）
|
||||
*/
|
||||
void AlarmBuzPro(void)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
/*========================= 延时函数 ==========================*/
|
||||
|
||||
/*
|
||||
* Delay10ms：软件延时约 10ms（12MHz 晶振，12T 模式）
|
||||
* 用于按键消抖
|
||||
*/
|
||||
void Delay10ms(void)
|
||||
{
|
||||
unsigned char a, b, c;
|
||||
for(c = 1; c > 0; c--)
|
||||
for(b = 38; b > 0; b--)
|
||||
for(a = 130; a > 0; a--);
|
||||
}
|
||||
@@ -0,0 +1,181 @@
|
||||
# 系统模块结构图（函数调用关系）
|
||||
|
||||
## main.c 模块
|
||||
|
||||
```
|
||||
main() ──────────────────────────────────────────────────────────────────────
|
||||
│ [初始化]
|
||||
├── Timer1Init() // 定时器1初始化
|
||||
├── LcdInit() ──→ lcd.c // LCD1602初始化
|
||||
├── Ds1302Init() ──→ ds1302.c // DS1302初始化
|
||||
│ └── Ds1302Read(), Ds1302Write()
|
||||
├── DS18B20_SetResolution() ──→ ds18b20.c
|
||||
├── DS18B20_StartConvert() ──→ ds18b20.c
|
||||
└── Ds1302Read() ──→ ds1302.c // 读取闹钟参数
|
||||
│
|
||||
│ [主循环 while(1)]
|
||||
├── Ds1302ReadTime() ──→ ds1302.c // 每次循环读取时钟
|
||||
├── TempPros() // 温度处理（每5次循环）
|
||||
│ ├── DS18B20_GetTemp() ──→ ds18b20.c
|
||||
│ └── DS18B20_StartConvert()
|
||||
├── LcdFramework() // 模式切换时刷新框架
|
||||
│ └── LcdWriteStr() → LcdWriteData() ──→ lcd.c
|
||||
├── AlarmJudge() // 闹钟时间匹配判断
|
||||
├── AlarmBuzPro() // 蜂鸣器驱动
|
||||
│ └── DelayMs()
|
||||
├── KeyScan() // 按键扫描
|
||||
│ └── KeyPressed() (×5) // 消抖检测
|
||||
│ ├── SetAlarm() // K1: 闹钟设置
|
||||
│ │ ├── LcdWriteStr() → lcd.c
|
||||
│ │ ├── LcdShowNumAt() → lcd.c
|
||||
│ │ ├── AdjustValue() // 小时/分钟调节
|
||||
│ │ │ ├── KeyPressed()
|
||||
│ │ │ ├── KeySound()
|
||||
│ │ │ └── LcdShowNumAt()
|
||||
│ │ ├── KeyPressed()
|
||||
│ │ │ └── KeySound()
|
||||
│ │ └── Ds1302Write() → ds1302.c
|
||||
│ ├── KeySound() / ReturnSound()
|
||||
│ │ └── DelayMs()
|
||||
│ └── 修改秒表全局变量
|
||||
│
|
||||
└── LcdUpdate() // LCD数据刷新
|
||||
├── LcdShowNumAt() → lcd.c
|
||||
├── ShowLcdWeek()
|
||||
│ └── LcdWriteData() → lcd.c
|
||||
├── LcdWriteCom() → lcd.c
|
||||
└── LcdWriteData() → lcd.c
|
||||
|
||||
Timer1() interrupt 3 // 定时器中断（10ms）
|
||||
└── sw_running == 1 → sw_csec++ → sw_sec++ // 秒表计时
|
||||
```
|
||||
|
||||
## ds1302.c 模块
|
||||
|
||||
```
|
||||
Ds1302Init()
|
||||
├── Ds1302Read(0x81) // 读秒寄存器，检测CH位
|
||||
└── Ds1302Write() × 9 // 写入默认时间 + 关闭写保护
|
||||
|
||||
Ds1302ReadTime()
|
||||
└── Ds1302Read() × 7 // 批量读取7个时间寄存器
|
||||
|
||||
Ds1302Write(addr, dat) // SPI协议写
|
||||
├── RST=1, SCLK=0
|
||||
├── 循环8次: 逐位发送地址(LSB→MSB)
|
||||
└── 循环8次: 逐位发送数据
|
||||
|
||||
Ds1302Read(addr) // SPI协议读
|
||||
├── RST=1, SCLK=0
|
||||
├── 循环8次: 逐位发送地址
|
||||
└── 循环8次: 逐位读取数据(MSB→LSB)
|
||||
```
|
||||
|
||||
## ds18b20.c 模块
|
||||
|
||||
```
|
||||
DS18B20_Reset()
|
||||
├── DQ=0 → 延时480μs
|
||||
└── DQ=1 → 等待应答
|
||||
|
||||
DS18B20_WriteByte(dat) // 单总线写
|
||||
└── 循环8次: DQ=0 → 写bit → 延时60μs → DQ=1
|
||||
|
||||
DS18B20_ReadByte() // 单总线读
|
||||
└── 循环8次: DQ=0 → DQ=1 → 读bit → 延时
|
||||
|
||||
DS18B20_StartConvert() // 启动温度转换
|
||||
├── DS18B20_Reset()
|
||||
├── DS18B20_WriteByte(0xCC) // 跳过ROM
|
||||
└── DS18B20_WriteByte(0x44) // 启动转换
|
||||
|
||||
DS18B20_SetResolution(res) // 设置分辨率
|
||||
├── DS18B20_Reset()
|
||||
├── DS18B20_WriteByte(0xCC)
|
||||
├── DS18B20_WriteByte(0x4E) // 写暂存器
|
||||
├── DS18B20_WriteByte(0x00) // TH
|
||||
├── DS18B20_WriteByte(0x00) // TL
|
||||
├── DS18B20_WriteByte(res) // 配置寄存器
|
||||
├── DS18B20_Reset()
|
||||
├── DS18B20_WriteByte(0xCC)
|
||||
└── DS18B20_WriteByte(0x48) // 复制到EEPROM
|
||||
|
||||
DS18B20_GetTemp(int *temp) // 读取温度值
|
||||
├── DS18B20_Reset()
|
||||
├── DS18B20_WriteByte(0xCC)
|
||||
├── DS18B20_WriteByte(0xBE) // 读暂存器
|
||||
├── DS18B20_ReadByte() // 低字节
|
||||
└── DS18B20_ReadByte() // 高字节
|
||||
```
|
||||
|
||||
## lcd.c 模块
|
||||
|
||||
```
|
||||
LcdInit()
|
||||
└── LcdWriteCom() × 5 // 初始化指令序列
|
||||
|
||||
LcdWriteCom(com) // 写指令（4位模式）
|
||||
├── RS=0, RW=0
|
||||
├── P0=com → 写高4位
|
||||
├── E=1 → 延时 → E=0
|
||||
└── P0=com<<4 → 写低4位
|
||||
└── E=1 → 延时 → E=0
|
||||
└── 内部调用 Lcd1602_Delay1ms()
|
||||
|
||||
LcdWriteData(dat) // 写数据（4位模式）
|
||||
├── RS=1, RW=0
|
||||
├── P0=dat → 写高4位
|
||||
├── E=1 → 延时 → E=0
|
||||
└── P0=dat<<4 → 写低4位
|
||||
└── E=1 → 延时 → E=0
|
||||
└── 内部调用 Lcd1602_Delay1ms()
|
||||
```
|
||||
|
||||
## 函数调用总图
|
||||
|
||||
```
|
||||
┌─────────────────────────────────────────────────────────────────────┐
|
||||
│ main() 主循环 │
|
||||
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
|
||||
│ │ DS1302 │ │ DS18B20 │ │ LCD1602 │ │ 按键扫描 │ │ 闹钟处理 │ │
|
||||
│ │ 时钟模块 │ │ 温度模块 │ │ 显示模块 │ │ KeyScan │ │ Judge │ │
|
||||
│ └────┬─────┘ └────┬─────┘ └────┬─────┘ └────┬─────┘ └────┬─────┘ │
|
||||
│ │ │ │ │ │ │
|
||||
│ ┌────▼────┐ ┌────▼────┐ ┌────▼────┐ ┌────▼────┐ ┌────▼────┐ │
|
||||
│ │ReadTime │ │TempPros │ │LcdUpdate│ │KeyPressed│ │AlarmBuz │ │
|
||||
│ │Init │ │GetTemp │ │Framework│ │SetAlarm │ │Pro │ │
|
||||
│ └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │
|
||||
│ │
|
||||
│ ┌─────────────────────────────────────────────────────────────┐ │
|
||||
│ │ Timer1 中断 (10ms) │ │
|
||||
│ │ → 秒表 sw_csec / sw_sec 累加 │ │
|
||||
│ └─────────────────────────────────────────────────────────────┘ │
|
||||
└─────────────────────────────────────────────────────────────────────┘
|
||||
│
|
||||
┌──────────────────┼──────────────────┐
|
||||
▼ ▼ ▼
|
||||
┌───────────┐ ┌───────────┐ ┌───────────┐
|
||||
│ ds1302.c │ │ ds18b20.c │ │ lcd.c │
|
||||
│ 底层驱动 │ │ 底层驱动 │ │ 底层驱动 │
|
||||
│ SPI协议 │ │ 单总线协议 │ │ 并行接口 │
|
||||
└───────────┘ └───────────┘ └───────────┘
|
||||
│ │ │
|
||||
▼ ▼ ▼
|
||||
┌───────────────────────────────────────────────┐
|
||||
│ STC89C52 硬件层 │
|
||||
│ P1^0-2 DS1302 │ P3^7 DS18B20 │ P0/P2 LCD │
|
||||
│ P3^0-3 按键 │ P2^0 蜂鸣器 │ Timer1 │
|
||||
└───────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## 文件间依赖
|
||||
|
||||
```
|
||||
main.c ──→ lcd.h (LcdInit, LcdWriteCom, LcdWriteData)
|
||||
main.c ──→ ds1302.h (Ds1302Init, Ds1302ReadTime, Ds1302Read, Ds1302Write)
|
||||
main.c ──→ ds18b20.h (DS18B20_GetTemp, DS18B20_StartConvert, DS18B20_SetResolution)
|
||||
|
||||
ds1302.c ──→ reg51.h, intrins.h
|
||||
ds18b20.c ──→ reg51.h, intrins.h
|
||||
lcd.c ──→ reg51.h
|
||||
```
|
||||
Binary file not shown.
@@ -0,0 +1,210 @@
|
||||
:0300000002049E59
|
||||
:0C049E00787FE4F6D8FD75812D0204E59E
|
||||
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|
||||
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|
||||
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|
||||
:10082C00202000202020203A20203A20202E20209A
|
||||
:04083C002020200058
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
:020A7600D32289
|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
:0C0705001912001A12071112026180E0A4
|
||||
:10052A00EF14B4070040030205B590054275F003C5
|
||||
:10053A00A4C58325F0C58373020557020560020529
|
||||
:10054A006E02057C02058A0205980205A67F5312EF
|
||||
:10055A000AB17F7580077F4D120AB17F6F120AB107
|
||||
:10056A007F6E80447F54120AB17F75120AB17F658B
|
||||
:10057A0080367F57120AB17F65120AB17F648028DC
|
||||
:10058A007F54120AB17F68120AB17F75801A7F46BA
|
||||
:10059A00120AB17F72120AB17F69800C7F53120A64
|
||||
:0C05AA00B17F61120AB17F74120AB12205
|
||||
:100840007F0C120AA5E52370177F80120AA57E0788
|
||||
:100850007FFC1209D87FC0120AA57E087F0D801A7E
|
||||
:10086000E523B402187F80120AA57E087F1E1209B4
|
||||
:0E087000D87FC0120AA57E087F2F1209D82259
|
||||
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|
||||
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|
||||
:100281000F75F00AA4FFE51A540F2FFD7F8512099F
|
||||
:10029100B9E519C4540F75F00AA4FFE519540F2FDD
|
||||
:1002A100FD7F881209B97F8C120AA5E51B5407FF4F
|
||||
:1002B10012052AE518C4540F75F00AA4FFE5185475
|
||||
:1002C1000F2FFD7FC01209B9E517C4540F75F00A4D
|
||||
:1002D100A4FFE517540F2FFD7FC31209B9E516C41A
|
||||
:1002E100540F75F00AA4FFE516540F2FFD7FC612B7
|
||||
:1002F10009B97FC9120AA5852608852709C3E5081A
|
||||
:100301006480948050127F2D120AB1C3E49509F5DF
|
||||
:1003110009E49508F50880057F20120AB1AE08AFFF
|
||||
:10032100097C007D64120468EF2430FF120AB1AE2B
|
||||
:1003310008AF097C007D0A1204687C007D0A120462
|
||||
:1003410068ED2430FF120AB17F2E120AB1AE08AF58
|
||||
:10035100097C007D0A120468ED2430FF120AB17F86
|
||||
:1003610043020AB1E52364027048AE21AF227C0E3C
|
||||
:100371007D10120413AD077FC21209B9AE21AF225D
|
||||
:100381007C0E7D101204137E007F3CCFCDCFCECCEE
|
||||
:10039100CE120413AD077FC51209B9AE21AF227C7D
|
||||
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|
||||
:0203B10009B988
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
:02025E0029FF76
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
:100A0E002DC39464400B752D000522E5227002055E
|
||||
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||||
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|
||||
:00000001FF
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,380 @@
|
||||
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
|
||||
<Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_proj.xsd">
|
||||
|
||||
<SchemaVersion>1.0</SchemaVersion>
|
||||
|
||||
<Header>### uVision Project, (C) Keil Software</Header>
|
||||
|
||||
<Targets>
|
||||
<Target>
|
||||
<TargetName>Target 1</TargetName>
|
||||
<ToolsetNumber>0x0</ToolsetNumber>
|
||||
<ToolsetName>MCS-51</ToolsetName>
|
||||
<TargetOption>
|
||||
<TargetCommonOption>
|
||||
<Device>AT89C51</Device>
|
||||
<Vendor>Atmel</Vendor>
|
||||
<Cpu>IRAM(0-0x7F) IROM(0-0xFFF) CLOCK(24000000)</Cpu>
|
||||
<FlashUtilSpec></FlashUtilSpec>
|
||||
<StartupFile>"LIB\STARTUP.A51" ("Standard 8051 Startup Code")</StartupFile>
|
||||
<FlashDriverDll></FlashDriverDll>
|
||||
<DeviceId>2976</DeviceId>
|
||||
<RegisterFile>REGX51.H</RegisterFile>
|
||||
<MemoryEnv></MemoryEnv>
|
||||
<Cmp></Cmp>
|
||||
<Asm></Asm>
|
||||
<Linker></Linker>
|
||||
<OHString></OHString>
|
||||
<InfinionOptionDll></InfinionOptionDll>
|
||||
<SLE66CMisc></SLE66CMisc>
|
||||
<SLE66AMisc></SLE66AMisc>
|
||||
<SLE66LinkerMisc></SLE66LinkerMisc>
|
||||
<UseEnv>0</UseEnv>
|
||||
<BinPath></BinPath>
|
||||
<IncludePath></IncludePath>
|
||||
<LibPath></LibPath>
|
||||
<RegisterFilePath>Atmel\</RegisterFilePath>
|
||||
<DBRegisterFilePath>Atmel\</DBRegisterFilePath>
|
||||
<TargetStatus>
|
||||
<Error>0</Error>
|
||||
<ExitCodeStop>0</ExitCodeStop>
|
||||
<ButtonStop>0</ButtonStop>
|
||||
<NotGenerated>0</NotGenerated>
|
||||
<InvalidFlash>1</InvalidFlash>
|
||||
</TargetStatus>
|
||||
<OutputDirectory>.\</OutputDirectory>
|
||||
<OutputName>pro</OutputName>
|
||||
<CreateExecutable>1</CreateExecutable>
|
||||
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|
||||
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|
||||
<DebugInformation>1</DebugInformation>
|
||||
<BrowseInformation>1</BrowseInformation>
|
||||
<ListingPath>.\</ListingPath>
|
||||
<HexFormatSelection>0</HexFormatSelection>
|
||||
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|
||||
<CreateBatchFile>0</CreateBatchFile>
|
||||
<BeforeCompile>
|
||||
<RunUserProg1>0</RunUserProg1>
|
||||
<RunUserProg2>0</RunUserProg2>
|
||||
<UserProg1Name></UserProg1Name>
|
||||
<UserProg2Name></UserProg2Name>
|
||||
<UserProg1Dos16Mode>0</UserProg1Dos16Mode>
|
||||
<UserProg2Dos16Mode>0</UserProg2Dos16Mode>
|
||||
</BeforeCompile>
|
||||
<BeforeMake>
|
||||
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|
||||
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|
||||
<UserProg1Name></UserProg1Name>
|
||||
<UserProg2Name></UserProg2Name>
|
||||
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|
||||
<UserProg2Dos16Mode>0</UserProg2Dos16Mode>
|
||||
</BeforeMake>
|
||||
<AfterMake>
|
||||
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|
||||
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|
||||
<UserProg1Name></UserProg1Name>
|
||||
<UserProg2Name></UserProg2Name>
|
||||
<UserProg1Dos16Mode>0</UserProg1Dos16Mode>
|
||||
<UserProg2Dos16Mode>0</UserProg2Dos16Mode>
|
||||
</AfterMake>
|
||||
<SelectedForBatchBuild>0</SelectedForBatchBuild>
|
||||
<SVCSIdString></SVCSIdString>
|
||||
</TargetCommonOption>
|
||||
<CommonProperty>
|
||||
<UseCPPCompiler>0</UseCPPCompiler>
|
||||
<RVCTCodeConst>0</RVCTCodeConst>
|
||||
<RVCTZI>0</RVCTZI>
|
||||
<RVCTOtherData>0</RVCTOtherData>
|
||||
<ModuleSelection>0</ModuleSelection>
|
||||
<IncludeInBuild>1</IncludeInBuild>
|
||||
<AlwaysBuild>0</AlwaysBuild>
|
||||
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|
||||
<AssembleAssemblyFile>0</AssembleAssemblyFile>
|
||||
<PublicsOnly>0</PublicsOnly>
|
||||
<StopOnExitCode>3</StopOnExitCode>
|
||||
<CustomArgument></CustomArgument>
|
||||
<IncludeLibraryModules></IncludeLibraryModules>
|
||||
<BankNo>65535</BankNo>
|
||||
</CommonProperty>
|
||||
<DllOption>
|
||||
<SimDllName>S8051.DLL</SimDllName>
|
||||
<SimDllArguments></SimDllArguments>
|
||||
<SimDlgDll>DP51.DLL</SimDlgDll>
|
||||
<SimDlgDllArguments>-p51</SimDlgDllArguments>
|
||||
<TargetDllName>S8051.DLL</TargetDllName>
|
||||
<TargetDllArguments></TargetDllArguments>
|
||||
<TargetDlgDll>TP51.DLL</TargetDlgDll>
|
||||
<TargetDlgDllArguments>-p51</TargetDlgDllArguments>
|
||||
</DllOption>
|
||||
<DebugOption>
|
||||
<OPTHX>
|
||||
<HexSelection>0</HexSelection>
|
||||
<HexRangeLowAddress>0</HexRangeLowAddress>
|
||||
<HexRangeHighAddress>0</HexRangeHighAddress>
|
||||
<HexOffset>0</HexOffset>
|
||||
<Oh166RecLen>16</Oh166RecLen>
|
||||
</OPTHX>
|
||||
<Simulator>
|
||||
<UseSimulator>1</UseSimulator>
|
||||
<LoadApplicationAtStartup>1</LoadApplicationAtStartup>
|
||||
<RunToMain>1</RunToMain>
|
||||
<RestoreBreakpoints>1</RestoreBreakpoints>
|
||||
<RestoreWatchpoints>1</RestoreWatchpoints>
|
||||
<RestoreMemoryDisplay>1</RestoreMemoryDisplay>
|
||||
<RestoreFunctions>1</RestoreFunctions>
|
||||
<RestoreToolbox>1</RestoreToolbox>
|
||||
<LimitSpeedToRealTime>0</LimitSpeedToRealTime>
|
||||
</Simulator>
|
||||
<Target>
|
||||
<UseTarget>0</UseTarget>
|
||||
<LoadApplicationAtStartup>1</LoadApplicationAtStartup>
|
||||
<RunToMain>0</RunToMain>
|
||||
<RestoreBreakpoints>1</RestoreBreakpoints>
|
||||
<RestoreWatchpoints>1</RestoreWatchpoints>
|
||||
<RestoreMemoryDisplay>1</RestoreMemoryDisplay>
|
||||
<RestoreFunctions>0</RestoreFunctions>
|
||||
<RestoreToolbox>1</RestoreToolbox>
|
||||
</Target>
|
||||
<RunDebugAfterBuild>0</RunDebugAfterBuild>
|
||||
<TargetSelection>-1</TargetSelection>
|
||||
<SimDlls>
|
||||
<CpuDll></CpuDll>
|
||||
<CpuDllArguments></CpuDllArguments>
|
||||
<PeripheralDll></PeripheralDll>
|
||||
<PeripheralDllArguments></PeripheralDllArguments>
|
||||
<InitializationFile></InitializationFile>
|
||||
</SimDlls>
|
||||
<TargetDlls>
|
||||
<CpuDll></CpuDll>
|
||||
<CpuDllArguments></CpuDllArguments>
|
||||
<PeripheralDll></PeripheralDll>
|
||||
<PeripheralDllArguments></PeripheralDllArguments>
|
||||
<InitializationFile></InitializationFile>
|
||||
<Driver></Driver>
|
||||
</TargetDlls>
|
||||
</DebugOption>
|
||||
<Utilities>
|
||||
<Flash1>
|
||||
<UseTargetDll>0</UseTargetDll>
|
||||
<UseExternalTool>0</UseExternalTool>
|
||||
<RunIndependent>0</RunIndependent>
|
||||
<UpdateFlashBeforeDebugging>0</UpdateFlashBeforeDebugging>
|
||||
<Capability>0</Capability>
|
||||
<DriverSelection>-1</DriverSelection>
|
||||
</Flash1>
|
||||
<Flash2></Flash2>
|
||||
<Flash3></Flash3>
|
||||
<Flash4></Flash4>
|
||||
</Utilities>
|
||||
<Target51>
|
||||
<Target51Misc>
|
||||
<MemoryModel>0</MemoryModel>
|
||||
<RTOS>0</RTOS>
|
||||
<RomSize>2</RomSize>
|
||||
<DataHold>0</DataHold>
|
||||
<XDataHold>0</XDataHold>
|
||||
<UseOnchipRom>0</UseOnchipRom>
|
||||
<UseOnchipArithmetic>0</UseOnchipArithmetic>
|
||||
<UseMultipleDPTR>0</UseMultipleDPTR>
|
||||
<UseOnchipXram>0</UseOnchipXram>
|
||||
<HadIRAM>1</HadIRAM>
|
||||
<HadXRAM>0</HadXRAM>
|
||||
<HadIROM>1</HadIROM>
|
||||
<Moda2>0</Moda2>
|
||||
<Moddp2>0</Moddp2>
|
||||
<Modp2>0</Modp2>
|
||||
<Mod517dp>0</Mod517dp>
|
||||
<Mod517au>0</Mod517au>
|
||||
<Mode2>0</Mode2>
|
||||
<useCB>0</useCB>
|
||||
<useXB>0</useXB>
|
||||
<useL251>0</useL251>
|
||||
<useA251>0</useA251>
|
||||
<Mx51>0</Mx51>
|
||||
<ModC812>0</ModC812>
|
||||
<ModCont>0</ModCont>
|
||||
<Lp51>0</Lp51>
|
||||
<useXBS>0</useXBS>
|
||||
<ModDA>0</ModDA>
|
||||
<ModAB2>0</ModAB2>
|
||||
<Mx51P>0</Mx51P>
|
||||
<hadXRAM2>0</hadXRAM2>
|
||||
<uocXram2>0</uocXram2>
|
||||
<ModC2>0</ModC2>
|
||||
<ModH2>0</ModH2>
|
||||
<Mdu_R515>0</Mdu_R515>
|
||||
<Mdu_F120>0</Mdu_F120>
|
||||
<Psoc>0</Psoc>
|
||||
<hadIROM2>0</hadIROM2>
|
||||
<ModSmx2>0</ModSmx2>
|
||||
<cBanks>0</cBanks>
|
||||
<xBanks>0</xBanks>
|
||||
<OnChipMemories>
|
||||
<RCB>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0xffff</Size>
|
||||
</RCB>
|
||||
<RXB>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</RXB>
|
||||
<Ocm1>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocm1>
|
||||
<Ocm2>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocm2>
|
||||
<Ocm3>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocm3>
|
||||
<Ocr1>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocr1>
|
||||
<Ocr2>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocr2>
|
||||
<Ocr3>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</Ocr3>
|
||||
<IRO>
|
||||
<Type>1</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x1000</Size>
|
||||
</IRO>
|
||||
<IRA>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x80</Size>
|
||||
</IRA>
|
||||
<XRA>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</XRA>
|
||||
<XRA512>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</XRA512>
|
||||
<IROM512>
|
||||
<Type>0</Type>
|
||||
<StartAddress>0x0</StartAddress>
|
||||
<Size>0x0</Size>
|
||||
</IROM512>
|
||||
</OnChipMemories>
|
||||
</Target51Misc>
|
||||
<C51>
|
||||
<RegisterColoring>0</RegisterColoring>
|
||||
<VariablesInOrder>0</VariablesInOrder>
|
||||
<IntegerPromotion>1</IntegerPromotion>
|
||||
<uAregs>0</uAregs>
|
||||
<UseInterruptVector>1</UseInterruptVector>
|
||||
<Fuzzy>3</Fuzzy>
|
||||
<Optimize>8</Optimize>
|
||||
<WarningLevel>2</WarningLevel>
|
||||
<SizeSpeed>1</SizeSpeed>
|
||||
<ObjectExtend>1</ObjectExtend>
|
||||
<ACallAJmp>0</ACallAJmp>
|
||||
<InterruptVectorAddress>0</InterruptVectorAddress>
|
||||
<VariousControls>
|
||||
<MiscControls></MiscControls>
|
||||
<Define></Define>
|
||||
<Undefine></Undefine>
|
||||
<IncludePath></IncludePath>
|
||||
</VariousControls>
|
||||
</C51>
|
||||
<Ax51>
|
||||
<UseMpl>0</UseMpl>
|
||||
<UseStandard>1</UseStandard>
|
||||
<UseCase>0</UseCase>
|
||||
<UseMod51>0</UseMod51>
|
||||
<VariousControls>
|
||||
<MiscControls></MiscControls>
|
||||
<Define></Define>
|
||||
<Undefine></Undefine>
|
||||
<IncludePath></IncludePath>
|
||||
</VariousControls>
|
||||
</Ax51>
|
||||
<Lx51>
|
||||
<useFile>0</useFile>
|
||||
<linkonly>0</linkonly>
|
||||
<UseMemoryFromTarget>1</UseMemoryFromTarget>
|
||||
<CaseSensitiveSymbols>0</CaseSensitiveSymbols>
|
||||
<WarningLevel>2</WarningLevel>
|
||||
<DataOverlaying>1</DataOverlaying>
|
||||
<OverlayString></OverlayString>
|
||||
<MiscControls></MiscControls>
|
||||
<DisableWarningNumbers></DisableWarningNumbers>
|
||||
<LinkerCmdFile></LinkerCmdFile>
|
||||
<Assign></Assign>
|
||||
<ReserveString></ReserveString>
|
||||
<CClasses></CClasses>
|
||||
<UserClasses></UserClasses>
|
||||
<CSection></CSection>
|
||||
<UserSection></UserSection>
|
||||
<CodeBaseAddress></CodeBaseAddress>
|
||||
<XDataBaseAddress></XDataBaseAddress>
|
||||
<PDataBaseAddress></PDataBaseAddress>
|
||||
<BitBaseAddress></BitBaseAddress>
|
||||
<DataBaseAddress></DataBaseAddress>
|
||||
<IDataBaseAddress></IDataBaseAddress>
|
||||
<Precede></Precede>
|
||||
<Stack></Stack>
|
||||
<CodeSegmentName></CodeSegmentName>
|
||||
<XDataSegmentName></XDataSegmentName>
|
||||
<BitSegmentName></BitSegmentName>
|
||||
<DataSegmentName></DataSegmentName>
|
||||
<IDataSegmentName></IDataSegmentName>
|
||||
</Lx51>
|
||||
</Target51>
|
||||
</TargetOption>
|
||||
<Groups>
|
||||
<Group>
|
||||
<GroupName>Source Group 1</GroupName>
|
||||
<Files>
|
||||
<File>
|
||||
<FileName>STARTUP.A51</FileName>
|
||||
<FileType>2</FileType>
|
||||
<FilePath>.\STARTUP.A51</FilePath>
|
||||
</File>
|
||||
<File>
|
||||
<FileName>main.c</FileName>
|
||||
<FileType>1</FileType>
|
||||
<FilePath>.\main.c</FilePath>
|
||||
</File>
|
||||
<File>
|
||||
<FileName>lcd.c</FileName>
|
||||
<FileType>1</FileType>
|
||||
<FilePath>.\lcd.c</FilePath>
|
||||
</File>
|
||||
<File>
|
||||
<FileName>ds1302.c</FileName>
|
||||
<FileType>1</FileType>
|
||||
<FilePath>.\ds1302.c</FilePath>
|
||||
</File>
|
||||
<File>
|
||||
<FileName>temp.c</FileName>
|
||||
<FileType>1</FileType>
|
||||
<FilePath>.\temp.c</FilePath>
|
||||
</File>
|
||||
</Files>
|
||||
</Group>
|
||||
</Groups>
|
||||
</Target>
|
||||
</Targets>
|
||||
|
||||
</Project>
|
||||
@@ -0,0 +1,85 @@
|
||||
/******************************************************************************
|
||||
* 文件名：temp.c
|
||||
* 功能：DS18B20 温度传感器驱动
|
||||
* 说明：三个底层函数分别实现初始化、写字节和读字节，
|
||||
* 配合 main.c 中的非阻塞状态机完成温度采集。
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
|
||||
#include"temp.h"
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：Ds18b20Init
|
||||
* 功能：初始化 DS18B20（发送复位脉冲，检测存在脉冲）
|
||||
* 输入：无
|
||||
* 输出：返回 1 表示检测到 DS18B20，返回 0 表示设备不存在
|
||||
* 时序：总线拉低 642us → 释放 → 等待 DS18B20 拉低（15~60us）→ 检测存在
|
||||
******************************************************************************/
|
||||
unsigned char Ds18b20Init()
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
DSPORT = 0; /* 拉低总线，发送复位脉冲 */
|
||||
i = 70;
|
||||
while(i--); /* 延时约 642us（>480us 最低要求） */
|
||||
|
||||
DSPORT = 1; /* 释放总线 */
|
||||
i = 0;
|
||||
while(DSPORT) /* 等待 DS18B20 拉低总线（存在脉冲） */
|
||||
{
|
||||
i++;
|
||||
if(i > 5000) /* 超时约 5ms，认为设备不存在 */
|
||||
return 0;
|
||||
}
|
||||
return 1; /* 初始化成功 */
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：Ds18b20WriteByte
|
||||
* 功能：向 DS18B20 写入一个字节（低位在前）
|
||||
* 输入：dat = 要写入的数据
|
||||
* 输出：无
|
||||
* 时序：每写一位，拉低 1us → 写入数据位 → 保持 68us → 释放总线
|
||||
******************************************************************************/
|
||||
void Ds18b20WriteByte(unsigned char dat)
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for(j = 0; j < 8; j++)
|
||||
{
|
||||
DSPORT = 0; /* 拉低总线，开始写时隙 */
|
||||
i++;
|
||||
DSPORT = dat & 0x01; /* 写入当前位（低位在前） */
|
||||
i = 6;
|
||||
while(i--); /* 保持 68us（>60us 要求） */
|
||||
DSPORT = 1; /* 释放总线 */
|
||||
dat >>= 1; /* 准备下一位 */
|
||||
}
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* 函数名：Ds18b20ReadByte
|
||||
* 功能：从 DS18B20 读取一个字节（低位在前）
|
||||
* 输入：无
|
||||
* 输出：返回读取到的字节数据
|
||||
* 时序：每读一位，拉低 1us → 释放 → 等待 6us → 采样总线 → 等待 48us
|
||||
******************************************************************************/
|
||||
unsigned char Ds18b20ReadByte()
|
||||
{
|
||||
unsigned char byte, bi;
|
||||
unsigned int i, j;
|
||||
|
||||
for(j = 8; j > 0; j--)
|
||||
{
|
||||
DSPORT = 0; /* 拉低总线，开始读时隙 */
|
||||
i++;
|
||||
DSPORT = 1; /* 释放总线 */
|
||||
i++;
|
||||
i++; /* 等待约 6us 后采样 */
|
||||
bi = DSPORT; /* 读取当前位 */
|
||||
byte = (byte >> 1) | (bi << 7); /* 低位在前，依次移入 */
|
||||
i = 4;
|
||||
while(i--); /* 等待 48us，确保时隙 >60us */
|
||||
}
|
||||
return byte;
|
||||
}
|
||||
@@ -0,0 +1,21 @@
|
||||
/******************************************************************************
|
||||
* 文件名：temp.h
|
||||
* 功能：DS18B20 温度传感器驱动头文件
|
||||
* 硬件接口：P3^7（单总线数据线）
|
||||
* 编译器：Keil C51
|
||||
******************************************************************************/
|
||||
|
||||
#ifndef __TEMP_H_
|
||||
#define __TEMP_H_
|
||||
|
||||
#include<reg51.h>
|
||||
|
||||
/* DS18B20 单总线数据引脚定义 */
|
||||
sbit DSPORT=P3^7;
|
||||
|
||||
/* DS18B20 基本操作函数 */
|
||||
unsigned char Ds18b20Init(void); /* 初始化 DS18B20，返回 1=存在 0=不存在 */
|
||||
void Ds18b20WriteByte(unsigned char dat); /* 向 DS18B20 写入一个字节 */
|
||||
unsigned char Ds18b20ReadByte(void); /* 从 DS18B20 读取一个字节 */
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user