Hello all, I have been working on a keyboard PCB with an STM32F103, and I have started trying to program it with the STM32duino bootloader however, I have been unable to connect to the chip. This is my first time using the STM32CubeProgrammer with an ST-Link V2. I have verified the voltage across several points in the PCB. I have previously used similar designs with STM32F07 chips and had no issues.
Most of the time, I get an error of "No STM32 Target found" and sometimes I get the error "ST-LINK error (DEV_TARGET_CMD_ERR)".
I have tried my best to look at past posts on the forum, but none of the solutions have fixed my issue.
I am happy to provide extra measurements and provide more information. Tips on how to troubleshoot this are greatly appreciated. Thank you in advance!
Schematic and PCB screenshot.
