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G
GNorr.2
Visitor II
May 29, 2022
Solved

STM32F103C8T6: Unable to connect to connect using ST-Link or UART.

  • May 29, 2022
  • 2 replies
  • 2169 views

Hi everyone, Just FYI this is my first real dive into using STMs so please excuse possible gaps in understanding.

Issue: I have been trying to program an STM Bluepill (STM32F103C8T6) but have been unable to get my pc to detect it and launch in debug mode using STMCubeIDE.

What I have tried:

ST-LINK: I have attempted to use both the STM32CubeProgrammer and STM Link-Utility to connect to the board and get the memory view to display. No amount of configuration has been able to get it to connected. I have looked up some previous posts on the matter and none have helped. (I have tried varying the mode and reset options options according to these post suggestions)

UART: I have also attempted a serial connection but am unable to connect with the following CubeProgrammer output:

 10:41:50:393 : Serial Port COM4 is successfully opened.

 10:41:50:393 : Port configuration: parity = even, baudrate = 1200, data-bit = 8,                    stop-bit = 1.0, flow-control = off

 10:41:50:393 : No Init bits value is : 0

 10:41:50:393 : Sending init command:

 10:41:51:392 : waitForBytesWritten Error : The wait operation timed out.

 10:41:52:392 : Error: Error occured while sending the byte 0x7F!

 10:41:52:392 : Error occured while sending Init command.

 10:41:52:392 : Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again...

 10:41:52:419 : UART PORT CLOSE

(Varying baud rate to its lowest value has not helped)

Any suggestions are welcome :)

    This topic has been closed for replies.
    Best answer by Peter BENSCH

    Well, the topic of Blue Pill has been discussed here several times (e.g. here or there), because only fakes have been installed there for a long time. These counterfeits look like originals, but behave differently and are very often rightly rejected by the STMicroelectronics software. Presumably you also have such a Blue Pill board with a fake on it?

    Regards

    /Peter

    2 replies

    G
    gbm
    Graduate
    May 30, 2022
    1. Check that you have the proper connections: GND and data. Make sure te BluePill is powered.
    2. Set the BluePill to boot mode - BOOT0 low.
    P
    Peter BENSCHAnswer
    Technical Moderator
    May 30, 2022

    Well, the topic of Blue Pill has been discussed here several times (e.g. here or there), because only fakes have been installed there for a long time. These counterfeits look like originals, but behave differently and are very often rightly rejected by the STMicroelectronics software. Presumably you also have such a Blue Pill board with a fake on it?

    Regards

    /Peter

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