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DouglasKoo
DouglasKoo
Associate
July 7, 2025
Solved

can`t connect to STM32C011F6P6

  • July 7, 2025
  • 2 replies
  • 361 views

Me 2, having the same issue as STM32C011 QFPN20 not able to be programmed using stlink-v2

 

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Best answer by DouglasKoo

Dear @STTwo-32 ,  thank you for prompt reply.   i have sorted out the issue with my STM32C011F6U6TR (UFQFPN-20)  .  

It is my soldering temperature of 370 degree (using Hot Air Blower) is too high, and such temperature damages the STM32C011 microcontroller.  I replace the dead chip and solder a new one by using 320 degree (Hot air),  STM32C011 responds to my STlink-V2.    

Ps:  I am using STlinkV2 (clone one, 2x5 pins),  and also genuine one (STlink v2)(2x10 pins). Both works on the newly soldered STM32C011F6U6TR (320 degree Celcius)

 

My Successful Setup:
Clock source:   Internal HSI  48 Mhz

PA14- Boot0 pin :   as SWCLK (did not add any pull-up or pull-down resistor)

PF2 - R\S\T\   pin :   as ~Reset (active LOW) pin  ,  this pin is pulled high to 3v3 using 10k resistor.

 

Thank you so much.

2 replies

STTwo-32
STTwo-32
Technical Moderator
July 7, 2025

Hello @DouglasKoo 

Could you please send a picture of your ST-LINK V2 since some ST-LINK V2 are cloned as you can see here. also, you can have a look at this article.

Best Regards.

STTwo-32

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    DouglasKoo
    DouglasKooAuthorAnswer
    Associate
    July 9, 2025

    Dear @STTwo-32 ,  thank you for prompt reply.   i have sorted out the issue with my STM32C011F6U6TR (UFQFPN-20)  .  

    It is my soldering temperature of 370 degree (using Hot Air Blower) is too high, and such temperature damages the STM32C011 microcontroller.  I replace the dead chip and solder a new one by using 320 degree (Hot air),  STM32C011 responds to my STlink-V2.    

    Ps:  I am using STlinkV2 (clone one, 2x5 pins),  and also genuine one (STlink v2)(2x10 pins). Both works on the newly soldered STM32C011F6U6TR (320 degree Celcius)

     

    My Successful Setup:
    Clock source:   Internal HSI  48 Mhz

    PA14- Boot0 pin :   as SWCLK (did not add any pull-up or pull-down resistor)

    PF2 - R\S\T\   pin :   as ~Reset (active LOW) pin  ,  this pin is pulled high to 3v3 using 10k resistor.

     

    Thank you so much.

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