Debugging by Blackmagic probe error

1

I have the latest PlatformIO and I can Upload firmware to the bluepill but when debugging I get the following error:

undefinedError: Traceback (most recent call last):
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/platformio/__main__.py", line 109, in main
    cli()  # pylint: disable=no-value-for-parameter
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/platformio/commands/__init__.py", line 44, in invoke
    return super(PlatformioCLI, self).invoke(ctx)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/click/decorators.py", line 21, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/Users/engmoh/.platformio/penv/lib/python3.8/site-packages/platformio/commands/debug/command.py", line 117, in cli

        server_executable = debug_options["server"]["executable"].lower()
TypeError: 'NoneType' object is not subscriptable

============================================================

An unexpected error occurred. Further steps:

* Verify that you have the latest version of PlatformIO using
  `pip install -U platformio` command

* Try to find answer in FAQ Troubleshooting section
  https://docs.platformio.org/page/faq.html

* Report this problem to the developers
  https://github.com/platformio/platformio-core/issues

============================================================

What could be the issue?

2

What’s the full platformio.ini and minimal code that you’re using?

3

If I go to the code location where the error occurs (line 117 of .platformio/penv/lib/python3.8/site-packages/platformio/commands/debug/command.py according to your log), the code looks different. It looks like so: platformio-core/command.py at v5.1.1 · platformio/platformio-core · GitHub

Do you have more than one PlatformIO installation? Or did you modify some files?

Uploading code with a Black Magic Probe built for the CMSIS framework to a Blue Pill (see https://stackoverflow.com/questions/66684660/debugging-with-blackmagic-probe-and-platformio-undefinederror) works for me.

4

,ini
This is the platformio.ini configuration:

[env:bluepill_f103c8]
platform = ststm32
board = bluepill_f103c8
framework = cmsis
board_build.mcu = stm32f103c8t6                 ; change microcontroller (override)
board_build.f_cpu = 8000000L                    ; change MCU frequency   (override)
upload_protocol = blackmagic                    ; SWD interface
debug_tool = blackmagic
debug_port = /dev/tty.usbmodem7BBB54AD1
upload_port = /dev/tty.usbmodem7BBB54AD1

This is the ini …

This is the minimal code , used to work before!

#include "stm32f1xx.h"
#include <stdio.h>


//? ========= PROTOTYPES ===========
void portsInit(void);
void delay(uint32_t delay);


int main(void)
{
    portsInit();
    //sprintf("Size of an \"int\" is %u byte(s).", sizeof(int));      // %u is used for unsined integers
    while(1)
    {
        GPIOC->ODR ^= GPIO_ODR_ODR13_Msk;
        delay(50000);
        
        GPIOC->ODR ^= GPIO_ODR_ODR13_Msk;
        delay(50000);
    }
}


void portsInit(void)
{
    //* Enable clock to port "A" and "B" (Default SysCLK = 8Mhz ext. OSC):
    RCC->APB2ENR |= ((1<<2) | (1<<3) | (1<<4));

    //* Set Pin Modes and Pin Configuration. (Reset Value = 0x4444 4444):
    
    //! Setting Mode for Pin PB11 MODE[1:0], "Bit1" of the MODE register = 1 and "Bit0" = 1
    GPIOB->CRH |= GPIO_CRH_MODE11_Msk;           // Set PB11 MODE as Output @ 50Mhz (max).  
    //! Setting Configuration for Pin PB11 CNF[1:0]
    GPIOB->CRH &= ~(GPIO_CRH_CNF11_Msk);
    /*
        * Final GPIOB->CRH register must equal 0b 0011 0100 0100 0100 or 0x3444,
        * to set pb11 pin as an Output MODE @ 50Mhz configured as General purpose
        * output push-pull configuration.
    */
    
    //! Setting Mode for Pin PB10 MODE[1:0], "Bit1" of the MODE register = 1 and "Bit0" = 1
    GPIOB->CRH |= GPIO_CRH_MODE10_Msk;           // Set PB11 MODE as Output @ 50Mhz (max).  
    //! Setting Configuration for Pin PB11 CNF[1:0]
    GPIOB->CRH &= ~(GPIO_CRH_CNF10_Msk);

    GPIOC->CRH |= GPIO_CRH_MODE13_Msk;           // Set PC13 MODE as Output @ 50Mhz (max).  
    //! Setting Configuration for Pin PC13 CNF[1:0]
    GPIOC->CRH &= ~(GPIO_CRH_CNF13_Msk);

}// End portsInit() Function.

void delay(uint32_t delay)
{
    for(uint32_t i = 0; i < delay; i++)
    {
        __asm__("nop");
        //! LOOP DOING NOTHING WASTING TIME (PSUDO-DELAY)
    }
}
,,,
5

I have one installation of VScode and platformio… I haven’t modified any file but the STlink.cfg configuration file (Or i can’t really remmeber the name) in the openOCD folder to allow non original boards STM32 MCUs to get debugged using openocd.

It used to work before.

6

There seems to be some extreme duplication going on with this post. It’s posted

They all declare the same debug_port = /dev/tty.usbmodem7BBB54AD1 so thus I assume it’s the same author.

The latter link confirmed that this was a bug in the STM32 platform code and is now fixed in the dev branch – have you tried that?