After changing only a little in my Code, the Application always ends up in the DummyHandler();
the error occurs after that code:
if (xSemaphoreTakeFromISR(uartirq, portMAX_Delay)) (selfwirtten code)
ldr r0, [r6]
movs r1, #0
mov.w r2, #4294967295
cmp ro, #0
if(prvISQueueEmpty(pxQueue) != pdFALSE) (out of the FreeRTOS/queue.c)
cmp.w r8, #0
from here it jumps into the Dummy Handler.
Unfortunately i have no clue what this error is related to? Could there be a memory fault?
Thanks in advance for any help.
When you say the code is self written do you mean you wrote a function that tries to block an ISR to wait for a semaphore? If so then that is not a valid thing to do - interrupts are under the control of the hardware, not the FreeRTOS scheduler. Otherwise you are just misusing the second parameter as it is not a block time. Please refer to the API documentation online.