ChibiOS Free Embedded RTOS

Posted: **Sun Jan 21, 2018 10:25 am**

Hello. I spent a day but i don't understand - how can i monitor flags which sets by function:

chnAddFlagsI(ip, flags)

For example (part of hal_serial_lld.h):

Code: Select all

/* Special case, LIN break detection.*/
  if (sr & USART_SR_LBD) {
    osalSysLockFromISR();
    chnAddFlagsI(sdp, SD_BREAK_DETECTED);
    u->SR = ~USART_SR_LBD;
    osalSysUnlockFromISR();
  }

Thanks a lot.

Posted: **Sun Jan 21, 2018 1:40 pm**

Hi,

You need to register a thread waiting from events on that event source. The event listener structure contains those flags.

If you search the forum about events you will find examples.

Giovanni

ChibiOS Free Embedded RTOS

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