lpcmanager

Smarteh RS485 bus: Rx timeout changed from 50 ms to 20 ms (slaves answer in approx. 10 ms). Timeout is žset outside while loop because select() decreases timeout gradually.

2017-01-13, bmakuc
bb465ef96b61
Smarteh RS485 bus: Rx timeout changed from 50 ms to 20 ms (slaves answer in approx. 10 ms). Timeout is žset outside while loop because select() decreases timeout gradually.
if(!rt_mutex_acquire(&UART_ReadMutex, TM_INFINITE )){
int prevstate;
if((prevstate=uartDevReadBuf_plc_state) == FULL){
uartDevReadBuf_plc_state = LOCKED;
}
rt_mutex_release(&UART_ReadMutex);
if(prevstate == FULL){
%(retrieve_code)s
/* unlock plc buffer */
uartDevReadBuf_plc_state = EMPTY;
}else{
/* No new data -> no update */
}
}