On SPC563xx, are there any known problems with writing to Flash and runing code, i.e. interrupts, at the same time?

[TheOtherMarcus]

I run code from Low and Mid address space and write to High address space in Flash C90LC. If I have interrupts enabled during write, the MCU frequently locks up.

[Erwan YVIN · Accepted solution]

Hello Marcus ,

no issue has been noticed

Have you checked SPC563Mxx_RLA Flash Test Application for Discovery in SPC5Studio Tools Suite or RM0015 ?

 /*==================== Lock to Protect Shadow Row ====================*/
    returnCode = pSetLock( &ssdConfig, LOCK_SHADOW_PRIMARY, 1, FLASH_LMLR_PASSWORD );
    if ( C90FL_OK != returnCode )
    {
        ErrorTrap(returnCode);
    }
 
    returnCode = pSetLock( &ssdConfig, LOCK_SHADOW_SECONDARY, 1, FLASH_SLMLR_PASSWORD );
    if ( C90FL_OK != returnCode )
    {
        ErrorTrap(returnCode);
    }
 
 
    /*====== Unlock all blocks in low address space ======*/
    returnCode = pGetLock( &ssdConfig, LOCK_LOW_PRIMARY, &blkLockEnabled, &blkLockState );
    if ( C90FL_OK != returnCode )
    {
        ErrorTrap(returnCode);
    }
 
    returnCode = pSetLock( &ssdConfig, LOCK_LOW_PRIMARY, (blkLockState & 0xFFFFFF00), FLASH_LMLR_PASSWORD);
    if ( C90FL_OK != returnCode )
    {
         ErrorTrap(returnCode);
    }
 
   	returnCode = pGetLock( &ssdConfig, LOCK_LOW_SECONDARY, &blkLockEnabled, &blkLockState );
    if ( C90FL_OK != returnCode )
    {
        ErrorTrap(returnCode);
    }
 
    returnCode = pSetLock( &ssdConfig, LOCK_LOW_SECONDARY, (blkLockState & 0xFFFFFF00), FLASH_SLMLR_PASSWORD);
    if ( C90FL_OK != returnCode )
    {
         ErrorTrap(returnCode);
    }

Best Regards

Erwan