HML串口屏与单片机通信

HML串口屏发送到单片机 两者互相发送数据及数据解析
char n=0xFF;
void HML_end()
{
int i=3;
while(i–)
printf(&n);
}
void beep_X()
{
BEEP=1; //???
delay_ms(250);
BEEP=0; //???
}
int num = 0;
char *req = NULL;
char numBuf[10];
char *dataPtr = NULL;
unsigned char BUF[USART_REC_LEN]; //½ÓÊÕ»º³å,×î´óUSART_REC_LEN¸ö×Ö½Ú.
void REC_Pro()
{
dataPtr = strchr((const char * )BUF,‘12’); //ËÑË÷’:’

if(dataPtr != NULL)									//Èç¹ûÕÒµ½ÁË
{
	dataPtr++;
	Led4_Set(LED_ON);
	Led5_Set(LED_ON);
	while(*dataPtr >= '0' && *dataPtr <= '9')		//ÅжÏÊÇ·ñÊÇÏ·¢µÄÃüÁî¿ØÖÆÊý¾Ý
	{
		numBuf[num++] = *dataPtr++;
	}
	numBuf[num] = 0;
	
	num = atoi((const char *)numBuf);				//תΪÊýÖµÐÎʽ
	
	if(strstr((char *)(const char * )BUF, "12"))				//ËÑË÷"redled"
	{
		if(num == 3)								//¿ØÖÆÊý¾ÝÈç¹ûΪ1£¬´ú±í¿ª
		{

			//beep_X();
		}
		else if(num == 5)							//¿ØÖÆÊý¾ÝÈç¹ûΪ0£¬´ú±í¹Ø
		{
			//Led4_Set(LED_OFF);
			beep

本文地址：https://blog.csdn.net/weixin_43481450/article/details/107994034