我尝试通过uart和Hex代码与嗅觉传感器通信,但它不起作用,传感器不会对给定命令的制造商做出反应。
我的写函数和uint_8
数组是否有问题?
//declaration of the hex array
uint8_t START_USM[7];
START_USM[0]=0x01;
START_USM[1]=0x00;
START_USM[2]=0x03;
START_USM[3]=0x31;
START_USM[4]=0x00;
START_USM[5]=0x00;
START_USM[6]=0x00;
// function for transmitting data
int commmandWrite2(int fileDescriptor, uint8_t *START_USM){
int i=0;
for(; i< COM_LEN; i++){
int n = write(fileDescriptor,&START_USM[i],1);
tcdrain(fileDescriptor);
}
}
答案 0 :(得分:0)
int commmandWrite2(int fileDescriptor, uint8_t *START_USM){
int i=0;
for(; i< COM_LEN; i++){
int n = write(fileDescriptor,&START_USM[i],sizeof(uint8_t ));
}
tcdrain(fileDescriptor);
}
如果以上工作,则可以将其优化为
int commmandWrite2(int fileDescriptor, uint8_t *START_USM){
int n = write(fileDescriptor,START_USM,sizeof(uint8_t )*COM_LEN);
tcdrain(fileDescriptor);
}