该项目是基于stc12c5a 与tfmini通信以及bh1750通信。是在tfmini例程上改写，写得我有点懵了。之前好像还可以用串口2接受到tfmini传来的数据。现在不行了，不知道怎么回事，求助大佬们，拜托！若需要完整程序测试也可以私我，感谢！！
#include <stdio.h>
#include "stc12c5a60s2.h" //the file come from stc-sip V6.86
#include <BH1750.c>
#define FOSC 11059200L //System frequency
unsigned char Sensor_Data[5]={0x00,0x00,0x00,0x00,0x00};
typedef struct {
int distance;
int strength;
char receiveComplete;
}TFmini;
TFmini tfmini = {0, 0, 0};
/******************************************************************************
to get the light value from bh1750.c
*******************************************************************************/
void conversion(uint temp_data) // êy?Y×a??3? ??￡?ê?￡?°ù￡??§￡?íò
{
Sensor_Data[0]=temp_data/10000+0x30 ;
temp_data=temp_data%10000; //è?óà????
Sensor_Data[1]=temp_data/1000+0x30 ;
temp_data=temp_data%1000; //è?óà????
Sensor_Data[2]=temp_data/100+0x30 ;
temp_data=temp_data%100; //è?óà????
Sensor_Data[3]=temp_data/10+0x30 ;
temp_data=temp_data%10; //è?óà????
Sensor_Data[4]=temp_data+0x30;
}
/******************************************************************************
TFmini 9 bytes output:
[0x59, 0x59, distanceL, distanceH, strengthL, strengthH, Mode, 0x00, checksum]
*****************************************************************************/
void getTFminiData(TFmini *tfmini) {
static unsigned char i = 0 ;
unsigned char j = 0;
unsigned int b=0;
unsigned int checksum = 0;
static unsigned char rx[9];
if(S2CON & 0x01) { //uart2 receive interrupt flag
S2CON &= ~(0x01); //clear uart2 receive interrupt flag
rx[ i] = S2BUF; //uart2 buf
if(rx[0] != 0x59) {
i = 0;
} else if(i == 1 && rx[1] != 0x59) {
i = 0;
} else if(i == 8) {
tfmini->receiveComplete = 1;
//printf("\r\n");
for(j = 0; j < 8; j++) {
checksum += rx[j];
}
if(rx[8] == (checksum % 256)) {
tfmini->distance = rx[2] + rx[3] * 256;
tfmini->strength = rx[4] + rx[5] * 256;
tfmini->receiveComplete = 1;
}
i = 0;
} else {
i++;
}
}
}
/******************************************************************************
Timer2 as baudtare generator.
When FOSC = 11059200L, baudrate <= 345600(11059200/32)
*****************************************************************************/
void Uart_Init(unsigned long baudrate1, unsigned long baudrate2) {
//Uart1 Init. Uart1 can select Timer1 or BRT as baudrate generator
SCON = 0x50; //8-bit variable UART
//AUXR |= 0x01; //selectBRT as baudrate generator
AUXR |= 0x40; //Set Timer1 1T Mode
TMOD |= 0x20; //Set Timer1 as 8-bit auto reload mode
TH1 = TL1 = -(FOSC/32/baudrate1); //Set auto-reload vaule
TR1 = 1; //Timer1 start run
//ES = 1;
//Uart2 Init. Uart2 can only select BRT as baudrate generator
//AUXR &=0XF7;
S2CON = 0x50; //8-bit variable UART
BRT = -(FOSC/32/baudrate2); //Set auto-reload vaule of baudrate generator
AUXR |= 0x14; //Baudrate generator work in 1T mode
IE2 = 0x01; //Enable UART2 interrupt
EA = 1;
SBUF = '\n'; //It's needed to give SBUF a random character if printf is used.
}
/*------------------------------------------------
usart1·￠?íò???×??ú
------------------------------------------------*/
void SendByte(unsigned char dat)
{
SBUF = dat;
while(!TI);
TI = 0;
}
/*------------------------------------------------
·￠?íò???×?·?′?
------------------------------------------------*/
void SendStr(unsigned char *s)
{
while(*s!='\0')// \0 ±íê?×?·?′??áê?±ê??￡? //í¨1y?ì2aê?·?×?·?′????2
{
if(*s=='*')
SendByte(0x22);
else
SendByte(*s);
s++;
}
}
void main() {
unsigned int b;
Uart_Init(9600, 115200);
Init_BH1750();//initialize the bh1750
printf("Hello, TFmini!\r\n");
b=getlx();//set b the result of bh1750
conversion(b);//get the light value store in Sensor_data
while(1) {
if(tfmini.receiveComplete == 1) {
tfmini.receiveComplete = 0;
printf("(%d, %d)\r\n", tfmini.distance, tfmini.strength);
SendStr(Sensor_Data);
}
}
}
/*void Uart() interrupt 4 using 1 {
}*/
void Uart2() interrupt 8 using 1 {
getTFminiData(&tfmini);
} |
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