2025-06-25 9:44 AM
When I program my STM32WLE5 using STM32CubeProgrammer and UART, a simple push on the reset button does not reset the MCU.
I always need to power-cycle it.
Why is the reset-pin not working, or why does it not start the application ? Is there a way to configure the option bytes to solve this ?
More info : I am doing this on a custom board, which has a USB-UART (CP2102N). Whenever the device comes out of reset, I check for the USB voltage, and if present, I jump to the bootloader.
After programming I remove the USB and reset the device again which should start the application. But until now this second reset does not work and I need to powercycle the MCU.