/* 向LCD1602液晶写入一字节数据，dat-待写入数据值 */
void LcdWriteDat(unsigned char dat)
{
LcdWaitReady();
LCD1602_RS = 1;
LCD1602_RW = 0;
LCD1602_DB = dat;
LCD1602_E = 1;
LCD1602_E = 0;
}
/* 向LCD1602液晶写入一字节命令，cmd-待写入命令值 */
void LcdWriteCmd(unsigned char cmd)
{
LcdWaitReady();
LCD1602_RS = 0;
LCD1602_RW = 0;
LCD1602_DB = cmd;
LCD1602_E = 1;
LCD1602_E = 0;
}
/* 向LCD1602液晶写入一字节数据，dat-待写入数据值 */
void LcdWriteDat(unsigned char dat){
LcdWaitReady(); //检查LCD1602状态，并准备
LCD1602_RS = 1; //开启写数据
LCD1602_RW = 0; //开启写数据
if(LCD1602_4PIN){
LCD1602_DB7 = dat&0x80;
LCD1602_DB6 = dat&0x40;
LCD1602_DB5 = dat&0x20;
LCD1602_DB4 = dat&0x10;
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
LCD1602_DB7 = dat&0x08;
LCD1602_DB6 = dat&0x04;
LCD1602_DB5 = dat&0x02;
LCD1602_DB4 = dat&0x01;
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
}else{
LCD1602_DB = dat; //写入数据
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
}
}
/* 向LCD1602液晶写入一字节命令，cmd-待写入命令值 */
void LcdWriteCmd(unsigned char cmd){
LcdWaitReady();
LCD1602_RS = 0;
LCD1602_RW = 0;
if(LCD1602_4PIN){ //如果是四线制，再写入低四位
LCD1602_DB7 = cmd&0x80;
LCD1602_DB6 = cmd&0x40;
LCD1602_DB5 = cmd&0x20;
LCD1602_DB4 = cmd&0x10;
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
LCD1602_DB7 = cmd&0x08;
LCD1602_DB6 = cmd&0x04;
LCD1602_DB5 = cmd&0x02;
LCD1602_DB4 = cmd&0x01;
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
}else{
LCD1602_DB = cmd; //写入命令
LCD1602_E = 1; //使能
LCD1602_E = 0; //关闭全能
}
}
