第二次优化代码，增加闹钟、蜂鸣器功能。

2026-07-07 09:12:08 +08:00
parent 971abf1cd8
commit 6c23af74d4
13 changed files with 4896 additions and 0 deletions
@@ -0,0 +1,135 @@
+#include"lcd.h"
+
+/*******************************************************************************
+* �� �� ��         : Lcd1602_Delay1ms
+* ��������		   : ��ʱ��������ʱ1ms
+* ��    ��         : c
+* ��    ��         : ��
+* ˵    ��         : �ú�������12MHZ�����£�12��Ƶ��Ƭ������ʱ��
+*******************************************************************************/
+
+void Lcd1602_Delay1ms(uint c)   //��� 0us
+{
+    uchar a,b;
+	for (; c>0; c--)
+	{
+		 for (b=199;b>0;b--)
+		 {
+		  	for(a=1;a>0;a--);
+		 }      
+	}
+    	
+}
+
+/*******************************************************************************
+* �� �� ��         : LcdWriteCom
+* ��������		   : ��LCDд��һ���ֽڵ�����
+* ��    ��         : com
+* ��    ��         : ��
+*******************************************************************************/
+#ifndef 	LCD1602_4PINS	 //��û�ж������LCD1602_4PINSʱ
+void LcdWriteCom(uchar com)	  //д������
+{
+	LCD1602_E = 0;     //ʹ��
+	LCD1602_RS = 0;	   //ѡ��������
+	LCD1602_RW = 0;	   //ѡ��д��
+	
+	LCD1602_DATAPINS = com;     //��������
+	Lcd1602_Delay1ms(1);		//�ȴ������ȶ�
+
+	LCD1602_E = 1;	          //д��ʱ��
+	Lcd1602_Delay1ms(5);	  //����ʱ��
+	LCD1602_E = 0;
+}
+#else 
+void LcdWriteCom(uchar com)
+{
+	LCD1602_E = 0;
+	LCD1602_RS = 0;
+	LCD1602_RW = 0;
+
+	LCD1602_DATAPINS = com;
+	Lcd1602_Delay1ms(1);
+
+	LCD1602_E = 1;
+	Lcd1602_Delay1ms(1);
+	LCD1602_E = 0;
+
+	Lcd1602_Delay1ms(1);
+	LCD1602_DATAPINS = com << 4;
+	Lcd1602_Delay1ms(1);
+
+	LCD1602_E = 1;
+	Lcd1602_Delay1ms(1);
+	LCD1602_E = 0;
+}
+#endif
+/*******************************************************************************
+* �� �� ��         : LcdWriteData
+* ��������		   : ��LCDд��һ���ֽڵ�����
+* ��    ��         : dat
+* ��    ��         : ��
+*******************************************************************************/		   
+#ifndef 	LCD1602_4PINS		   
+void LcdWriteData(uchar dat)			//д������
+{
+	LCD1602_E = 0;	//ʹ������
+	LCD1602_RS = 1;	//ѡ����������
+	LCD1602_RW = 0;	//ѡ��д��
+
+	LCD1602_DATAPINS = dat; //д������
+	Lcd1602_Delay1ms(1);
+
+	LCD1602_E = 1;   //д��ʱ��
+	Lcd1602_Delay1ms(5);   //����ʱ��
+	LCD1602_E = 0;
+}
+#else
+void LcdWriteData(uchar dat)
+{
+	LCD1602_E = 0;
+	LCD1602_RS = 1;
+	LCD1602_RW = 0;
+
+	LCD1602_DATAPINS = dat;
+	Lcd1602_Delay1ms(1);
+
+	LCD1602_E = 1;
+	Lcd1602_Delay1ms(1);
+	LCD1602_E = 0;
+
+	Lcd1602_Delay1ms(1);
+	LCD1602_DATAPINS = dat << 4;
+	Lcd1602_Delay1ms(1);
+
+	LCD1602_E = 1;
+	Lcd1602_Delay1ms(1);
+	LCD1602_E = 0;
+}
+#endif
+/*******************************************************************************
+* �� �� ��       : LcdInit()
+* ��������		 : ��ʼ��LCD��
+* ��    ��       : ��
+* ��    ��       : ��
+*******************************************************************************/		   
+#ifndef		LCD1602_4PINS
+void LcdInit()						  //LCD��ʼ���ӳ���
+{
+ 	LcdWriteCom(0x38);  //����ʾ
+	LcdWriteCom(0x0c);  //����ʾ����ʾ���
+	LcdWriteCom(0x06);  //дһ��ָ���1
+	LcdWriteCom(0x01);  //����
+	LcdWriteCom(0x80);  //��������ָ�����
+}
+#else
+void LcdInit()						  //LCD��ʼ���ӳ���
+{
+	LcdWriteCom(0x32);	 //��8λ����תΪ4λ����
+	LcdWriteCom(0x28);	 //����λ���µĳ�ʼ��
+	LcdWriteCom(0x0c);  //����ʾ����ʾ���
+	LcdWriteCom(0x06);  //дһ��ָ���1
+	LcdWriteCom(0x01);  //����
+	LcdWriteCom(0x80);  //��������ָ�����
+}
+#endif