SWD debugging problem

[eng239955]

Posted on November 17, 2015 at 12:34

i made my stm32f030k6t6 board and i connect it to stlink 

after that  i generate keil V5 project using stmcube .i  enabled the SWD pins only , after that i compiled the program and download it ,i start the debugger ,but when the program execute the [HAL_RCC_OscConfig()] the debugger send message that it cant communicate with core and every thing stop working ??  #swd #stm32

[Tesla DeLorean]

Posted on November 17, 2015 at 13:41

Maybe you can provide the generated code where it crashes, and information about the external clocks on your board?

You'll want to look to see if there is anything that would alter the SWD pins, or put the device into a low power mode.

[Amel NASRI]

Posted on November 17, 2015 at 14:50

Hi mohammed_sayed,

With CubeMX generated code, pins are set to there default status if not configured with the tool.To be able to debug the STM32F1 device in SWD mode, you have to select ''Serial-Wire'' in SYS configuration (Pinout wizard).-Mayla-

[Tesla DeLorean]

Posted on November 17, 2015 at 15:19

To be able to debug the STM32F1 device in SWD mode,...

He states he has an F0 device

[stm322399]

Posted on November 17, 2015 at 15:54

I guess that your custom board has a different clock scheme (no quartz ?), so the software running on the eval board has no chance to run until customized as well.

[eng239955]

Posted on November 17, 2015 at 18:27

thank you for replay 

first i use [HSI] with default trim ,then i passed it to PLL with (x12) PLLmul  to achieve 48MHZ (max clock speed )   i traced the code and i found that the stlink lose connection with target gust after enable pll using  [__HAL_RCC_PLL_ENABLE();]if i reduce the PLLmul less than (x6) it run finei also test Ulink 2 and the same result  @Mayla i did what you mention  in stmcube