IWDG and NVIC_SystemReset on Keil MCBSTM32

Hi Marco

Systemreset:
I use the following code to request a systemrest out of unprivileged mode.

void __svc(1) PeriResetSystemSVC( void );
void __SVC_1                    ( void ) {

    // note: beginning of protected function to reset the system
    __disable_irq();

    // set software reset flag
    NVIC_GenerateSystemReset();
    // hack: for debug endless loop should never be reached
    while( 1 ) {
        __nop();
    }
}

The differences are that the irq get disbaled and that I use an older version of the ST fimrware lib. But it isn't obviously to me, way your code isn't running.

Watchdog:
Perhaps you have to disable the "run to main()" check box at the debug settings?

Hi Marco

Systemreset:
I use the following code to request a systemrest out of unprivileged mode.

void __svc(1) PeriResetSystemSVC( void );
void __SVC_1                    ( void ) {

    // note: beginning of protected function to reset the system
    __disable_irq();

    // set software reset flag
    NVIC_GenerateSystemReset();
    // hack: for debug endless loop should never be reached
    while( 1 ) {
        __nop();
    }
}

The differences are that the irq get disbaled and that I use an older version of the ST fimrware lib. But it isn't obviously to me, way your code isn't running.

Watchdog:
Perhaps you have to disable the "run to main()" check box at the debug settings?

Dear sir:
Like the topic.
Where i can get it.
Thank you very much.

Hi Raphael,

1 SystemReset
My code is much like your:

if (ProtectedPages != 0x00000000) {

  //bootloader pages are not protected, protect them
  FLASHStatus = FLASH_EnableWriteProtection(D_FLASH_BOOTLOADER_PROTECTED_PAGES);

  Led_1_Turn_On(0,0);  //TODO TEST, remove when done

  // Generate System Reset to load the new option byte values
  __disable_irq();
  NVIC_SystemReset();

} else {

  Led_1_Turn_Off();  //TODO TEST, remove when done

}

But it doesn't work...

2) Watchdog
I disabled the "run to main()" checkbox but nothing changed.

Can I ask you which board are you using (if you're using one...)

No; the topic of this thread is IWDG and NVIC_SystemReset on Keil MCBSTM32

Do not hijack existing threads with unrelated requests!

Also note that it has nothing to do with Keil tools or products - so this isn't even the correct forum in which to ask.

Have you tried google?

Hi Marco

We use our own board. We use the SWD configuration and uLink2 for debugging and programming. The NRST pin is also connected to the SWD connector but the pin B4/TRST isn't connected as ST did at their eval board STM3210B.