内容发布更新时间 : 2026/8/24 8:11:44星期一 下面是文章的全部内容请认真阅读。
unsigned char Ds18b20Init();
void Ds18b20WriteByte(unsigned char com); unsigned char Ds18b20ReadByte(); void Ds18b20ChangTemp(); void Ds18b20ReadTempCom(); int Ds18b20ReadTemp(); #endif 4.lcd.c #include\
void Lcd1602_Delay1ms(uint c) {
uchar a,b; for (; c>0; c--) { for (b=19;b>0;b--) {
for(a=1;a>0;a--);
}
//延时 }
}
#ifndef LCD1602_4PINS //当没有定义这个LCD1602_4PINS时
void LcdWriteCom(uchar com) //写入一个字节命令 { } #else
void LcdWriteCom(uchar com) {
LCD1602_E = 0;
LCD1602_E = 1; Lcd1602_Delay1ms(5); LCD1602_E = 0; LCD1602_E = 0; LCD1602_RS = 0; LCD1602_RW = 0;
LCD1602_DATAPINS = com; Lcd1602_Delay1ms(1);
LCD1602_RS = 0; LCD1602_RW = 0;
LCD1602_DATAPINS = com; //由于4位的接线是接到P0
口的高四位，所以传送高四位不用改 } #endif
//写入一个字节数据
LCD1602_E = 1; Lcd1602_Delay1ms(5); LCD1602_E = 0;
LCD1602_DATAPINS = com << 4; //发送低四位 Lcd1602_Delay1ms(1); LCD1602_E = 1; Lcd1602_Delay1ms(5); LCD1602_E = 0; Lcd1602_Delay1ms(1);
#ifndef LCD1602_4PINS
void LcdWriteData(uchar dat) {
LCD1602_E = 0; LCD1602_RS = 1;
LCD1602_RW = 0;
LCD1602_DATAPINS = dat; Lcd1602_Delay1ms(1);
LCD1602_E = 1; } #else
void LcdWriteData(uchar dat) {
LCD1602_E = 0; LCD1602_RS = 1; LCD1602_RW = 0;
//由于4位的接线是接到P0
Lcd1602_Delay1ms(5); LCD1602_E = 0;
LCD1602_DATAPINS = dat;
口的高四位，所以传送高四位不用改
Lcd1602_Delay1ms(1); LCD1602_E = 1; //写入时序 Lcd1602_Delay1ms(5); LCD1602_E = 0;
LCD1602_DATAPINS = dat << 4; //写入低四位 Lcd1602_Delay1ms(1);
LCD1602_E = 1; //写入时序 Lcd1602_Delay1ms(5); LCD1602_E = 0;
}
#endif
#ifndef
LCD1602_4PINS
void LcdInit()
{
LcdWriteCom(0x38); LcdWriteCom(0x0c); LcdWriteCom(0x06); LcdWriteCom(0x01); LcdWriteCom(0x80);
} #else
void LcdInit() { LcdWriteCom(0x32); LcdWriteCom(0x28); LcdWriteCom(0x0c); LcdWriteCom(0x06);
LcdWriteCom(0x01);
//LCD初始化子程序