STM32F405 canStart/canStop Topic is solved

[omcdr]

There is problem with canStop function, this code works corectly:

Code: Select all

   canStart(&CAND1, &cancfg500k_36Mhz);
   canStart(&CAND2, &cancfg500k_36Mhz);

   chThdSleepMilliseconds(500);

   canStop(&CAND2);
   canStop(&CAND1);

but this not:

Code: Select all

   canStart(&CAND1, &cancfg500k_36Mhz);
   canStart(&CAND2, &cancfg500k_36Mhz);

   chThdSleepMilliseconds(500);

   canStop(&CAND1);
   canStop(&CAND2);

I got panic message at line

#if STM32_CAN_USE_CAN2
osalDbgAssert(CAND2.state == CAN_STOP, "CAN2 must be stopped");

and debug stop at :

/* Pointing to the passed message.*/
ch.dbg.panic_msg = reason;

[efuentes]

In the STM32F405, CAN1 must be enabled for CAN2 to operate correctly. The panic is there to prevent you from assuming that CAN2 will operate correctly if CAN1 has been stopped.

[omcdr]

Ok, I see, there is for intended effect