STM32 MCUs Boards and hardware tools

Hi everyone, I got a new ST-V3 Link debugger, when I connected to my PC it says ST-LINK error (DEV_CONNECT_ERR). I tried in Cube Programmer. I tried upgrading firmware and when I connected to my PC i'm getting FAIL.txt file

@In the FAIL.txt file it says (The interface firmware FAILED to reset/halt the target MCU). Need help @Community member​  thanks

STLink not reliably working on several NUCLEO-L476RG boards

I have 5 NUCLEO-L476RG development boards. I purchased them in the last few months. Two of them are only a couple weeks old and have not been used except for the test below.The problem is that when I plug into the board, the LD1 and LD3 LEDs often st...

ST-LINK GDB debuger ends with error. Open OCD work properly.

GDB debuger ends on my blue pill with error.Error in initializing ST-LINK device. Reason: (18) Could not verify ST device! Abort connection.Open ODC works fine. Output stream is below.Open On-Chip Debugger 0.10.0+dev-g30d1303 (2020-06-18-09:13)Licens...

ST-Link Can't Read Memory

Hi everybody, I recently bought a STM32F103RBTx and it worked perfectly at the first run.Today I tried to use it again and I meet a lot of problems.When I launch the ST-Link Utility, I have a message saying " Can not read memory! Disable Read Out Pro...

STlink resets board seconds before programming

I have a rather large build and I notice that my board boots twice when I program it. It seems like ST-link is performing a reset, then does "something" before actually doing the programming of my board. Is there any way to ensure that reset only hap...

Is it possible to hook up sim800l to nucleo and pc at the same time?(schematics included)

hi everyone , i want to set up my circuit in such a way that as soon as i turn on my board it starts sending AT commands to sim800l to put it on GSM mode and do some stuff ,is it possible to put my pc in the middle like in the picture?

ST-LINK V3Set COM LED is not turning RED upon connection. The COM shows no led but the power is ON. What could be the reason?

I have connected ST-LINK/V2 ISOL and installed driver link-009. The red LED is no longer flashing. In device manager (win10) the USB device STM32 STlink is visable. Question : What should happen next? No COM-port is attached to the USB (should it?)

I have started:Motor profiler 5.4.5 with target STEVAL-ESC001V1 (no response)Motor control workcbench 5.4.5 (no response)No USB-com available for ST-LINK/V2 ISOL. Should I expect that?No manual describing what to do. Does it exist?