- Low dropout 5V USB protection from external power supply
- Compact form-factor
- Pain-in-the-ass 0402 capacitors
In case of failure (or low voltage on 5V pin) at first check following:
- AO3401A FET
Simple STM32 SWD programmer. It is based on the original ST-Link, but has only a 2-wire SWD interface. Works fine with STM32 ST-Link Utility and using original ST-Link firmware.
-first flash attached bin
-then update firmware under ST-Link Utility