ChibiOS Free Embedded RTOS

Posted: **Wed May 28, 2014 10:02 am**

Hi, i need to pilot the following interrupt request by the user button on a STMF3

CH_IRQ_HANDLER(myIRQ) {
  CH_IRQ_PROLOGUE();
 
  /* Wakes up the thread.*/
  chSysLockFromIsr();
  if (tp != NULL) {
    tp->p_u.rdymsg = (msg_t)55;     /* Sending the message, optional.*/
    chSchReadyI(tp);
    tp = NULL;
  }
  chSysUnlockFromIsr().
 
  CH_IRQ_EPILOGUE();
}

how can i do this?

Posted: **Wed May 28, 2014 10:20 am**

Hi,

You don't need to use an ISR at all, you can use the EXT driver which can give you a callback on a front on any pin. See the examples under /testhal.

Giovanni

Posted: **Sat May 31, 2014 9:49 am**

Thank you Giovanni for your reply, it's all what i need.

ChibiOS Free Embedded RTOS

Interrupt request on STMF3

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