2025-06-03 1:35 AM - last edited on 2025-06-03 6:14 AM by Andrew Neil
After a debug session my nucleo-wl55jc1 dev kit cannot connect to my pc using cube programmer or cube ide. When i plug it in to my pc i get this error "The interface firmware FAILED to reset/halt the target MCU" in a text file. LED4 is permanently red. I have tried to hold the reset button and time it correctly as i assume the debug session bricked my device.
However i have been unsuccessful. I've updated drivers and removed and re-installed all stm32 programs. I am able to update the st link firmware but nothing else. I have been trying for two days now and i cant seem to find the solution. Please assist.
Thank you !
2025-06-03 6:12 AM
Connect BOOT0 to VDD and reset or power cycle the chip. This will load the bootloader. Then, try to connect again.
What does the firmware currently loaded on the chip do? Any flash modification or low power modes?
2025-06-03 6:47 AM
Hello
I unfortunately have already tried this and i cant seem to connect still :
However, i don't think it ever enters bootloader mode as the lights are unchanged. Do you have any other suggestions?
The program currently loaded on the module is just a simple ADC program. No low power or flash usage has been incorporated as of yet.