Cannot enter debug mode after entered power down mode

[leechen]

As soon as I entered power down mode without any method of waking the board up, I cannot enter the debug more anymore. How can I solve this?

my code as follow:

int main(void)
{
  SystemCoreClockUpdate();
  Board_Init();
  SysTick_Config(SystemCoreClock / TICKRATE_HZ);
  ProcessPowerState(PMU_MCU_POWER_DOWN);

}

[shaheenshamshad]

Hello Victor,

I tried the given solutions in the above link but none worked for me.

I am using LPC54618 MCU and LPCXpresso IDE.

Is there some other way to come out of this problem?

regards,

SS

[victorjimenez]

Hello Lee Chen, 

Did  you put your MCU in ISP mode following the steps mentioned in the community post I put before? Once you are in ISP mode you should be able to launch the debug session without any problem. 

Also, I recommend you to use MCUXpresso IDE since in our newest IDE instead of LPCXpresso.  

Link to MCUXpresso IDE

Regards, 

Victor.

[shaheenshamshad]

Hello Victor,

Yes it worked.

LPC54618 has three ISP pins so I connect it to GND and followed the instruction mentioned in this https://community.nxp.com/thread/389112 .

Thank you.

regards,

SS

[victorjimenez]

Hello Lee Chen, 

Please refer the following community post: Regaining debug access to target MCU 

You need to recover the debug access to the MCU. That community post explains how to do this. 

Hope it helps! 

Victor.

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