SX1262 crashes during RadioIrqProcess

[ghalencar]

Good morning,

I need help. This doesn't happen often, but I wouldn't want you to reset my part. When a message is received it always passes through the function "void RadioIrqProcess( void )" , but when the message arrives in the following decisions:
IRQ_CRC_ERROR, IRQ_PREAMBLE_DETECTED and IRQ_HEADER_ERROR the system crashes and restarts via an external watchdog. Is there anything that can be done in this function?

[mluis1]

Could you check that all RadioEvents_t callbacks are properly initialized?

Do you observe hard fault interrupts?
If yes, most of the time it means that some callback are not properly initialized. However this should not happen as all callbacks execution are protected.

Examples:
IRQ_CRC_ERROR

LoRaMac-node/src/radio/sx126x/radio.c

Lines 1293 to 1296 in fe8247e

	if( ( RadioEvents != NULL ) && ( RadioEvents->RxError ) )
	{
	RadioEvents->RxError( );
	}

IRQ_PREAMBLE_DETECTED no code is executed when this happens

LoRaMac-node/src/radio/sx126x/radio.c

Lines 1355 to 1358 in fe8247e

	if( ( irqRegs & IRQ_PREAMBLE_DETECTED ) == IRQ_PREAMBLE_DETECTED )
	{
	//__NOP( );
	}

IRQ_HEADER_ERROR

LoRaMac-node/src/radio/sx126x/radio.c

Lines 1378 to 1381 in fe8247e

	if( ( RadioEvents != NULL ) && ( RadioEvents->RxTimeout != NULL ) )
	{
	RadioEvents->RxTimeout( );
	}

RadioIrqProcess

LoRaMac-node/src/apps/LoRaMac/common/LmHandler/LmHandler.c

Lines 354 to 358 in fe8247e

	// Process Radio IRQ
	if( Radio.IrqProcess != NULL )
	{
	Radio.IrqProcess( );
	}

In order to debug your issue maybe you can launch a debug session and set a break point at first statement inside the concerned if statement then execute the code step by step up until you observe the issue.
Once the observed issue is understood you may find soluttions on how to solve it.

[ghalencar]

Thanks for the answer!

I managed to solve. I put a flag that only calls the following function when lorawan starts:

void RadioOnDioIrq( void )
{
IrqFired = true;
if(st_LoraWan.bLWConfigOK == true)
RadioIrqProcess();
}

Also when preamble or CRC error occurred, I reset the radio by pin, put a timeout on the SPI and restarted Lorawan.

After that, I had no more problems.