STM32 DOESN'T WORK AFTER EXITING DEBUG MODE

[AlexanderKibarov]

Hello,

I’m not sure that is this important, but the board I’m using is the STM32F413ZH. When I try running an application on the STM32, it generally works fine, but sometimes after exiting debug mode, it stops working. Actually, this isn't a big problem for me because pressing the reset button fixes it. However, I’m curious—what could be causing this issue?

For example, I turn an LED on and off. If I do not turn it on to debug mode, there is no problem. Or when I turn it on, there is no problem, but if I turn the debug on and off, the LED remains as it is.

Thanks.

[Sarra.S]

Hello @AlexanderKibarov, 

Are you entering some low power mode? 

[AlexanderKibarov]

Hello, @Sarra.S 

Probably you mean this in my opinion.

However, answer is no because low pow mode is disable in debug.

[Sarra.S · Accepted solution]

If the GPIOs used for debugging are reconfigured during the application execution, it can cause the debug connection to be lost. For example, configuring all GPIOs to analog input mode to reduce power consumption can affect the SWD GPIOs

[SofLit]

Hello @AlexanderKibarov ,

@Sarra.S wrote:

If the GPIOs used for debugging are reconfigured during the application execution, it can cause the debug connection to be lost. For example, configuring all GPIOs to analog input mode to reduce power consumption can affect the SWD GPIOs

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Here we talk about PA13 (SWCLK) and PA14 (SWDIO).