我有这个问题,我有 STM32 Nucleo L152RE 和一个 Shield SIM 900,现在如果我写这个简单的线程一切正常,
'static THD_WORKING_AREA(waRead, 128);
static THD_FUNCTION(Thread,arg) {
(void)arg;
chRegSetThreadName("th_callback");
while (TRUE){
/* This will wait for a character to be received */
uint8_t c = sdGet(&SD1); //questo prende il carattere
sdPut(&SD2, c); // questo lo spara alla terminale
}
}
' 当我打磨 AT commnad 时,我看到了正确的答案。现在我创建这个缓冲区
'static uint8_t bufferMsg[128];'
我用这个线程来存储答案
' static THD_WORKING_AREA(waRead5, 128);
static THD_FUNCTION(Thread5,arg) {
chRegSetThreadName("th_Riempio_Buffer");
msg_t charbuf;
int count=0;
uint8_t c;
event_listener_t Uart1Data;
eventmask_t flags;
chEvtRegisterMask((event_source_t *)chnGetEventSource(&SD1), &Uart1Data, EVENT_MASK(1));
while (TRUE) {
chEvtWaitOneTimeout(EVENT_MASK(1), MS2ST(10));
chSysLock();
flags =chEvtGetAndClearFlags(&Uart1Data);
chSysUnlock();
if (flags & CHN_INPUT_AVAILABLE)
{
do
{
charbuf = chnGetTimeout(&SD1,TIME_IMMEDIATE);
if (charbuf != Q_TIMEOUT)
{
while((charbuf != '\n') && (count < 128)) {
sdWrite(&SD2, (uint8_t *)B3,4); // va bene
bufferMsg[count]= charbuf;
count++;
}
}
}
while (charbuf != Q_TIMEOUT);
}
}
}
'
这个线程不起作用并且不存储答案,你能帮我吗?
最好的问候 A。