I have the AWS ExpressLink kit which came with ESP32 micromod processor board. This is working great. I then ordered the stm32 micromod. I can’t get it into dfu mode. (Hold boot button, then press reset) I tried building the blink app in arduino for stm32 micromod. App builds fine, but uploading to board says:
/home/user/.arduino15/packages/SparkFun/tools/STM32Tools/2.0.0/linux/stm32CubeProg.sh 2 /tmp/arduino_build_854192/Blink.ino.bin -g
STM32CubeProgrammer v2.9.0
An error occurred while uploading the sketch
Error: Target device not found
Establishing connection with the device failed
How can I get it to upload code? Why is device not found?