EVLSERVO1 (STSPIN32G431) – Code uploads successfully but MCU does not run

[IOT_100]

Hello,

I’m working with the EVLSERVO1 board (STSPIN32G431) and using ST-LINK V3 + STM32CubeProgrammer.

• Connection: SWD (ST-LINK V3 to J1 header)

• CubeProgrammer connects and uploads HEX file successfully

• BOOT0 = GND

• NRST is wired correctly

• After reset, MCU does not appear to execute my code (tested with simple LED blink and with motor-control firmware).

• I also tried “connect under reset” → programming OK, but still no execution.

Questions:

1. Is there a specific jumper or power setup required on EVLSERVO1 to run user code?

2. Which GPIO pin controls the user LED (for a blink test)?

3. Does ST provide a ready-to-use motor test firmware for EVLSERVO1 that I can flash to confirm hardware is OK?

4. Could the problem be due to missing motor supply voltage (VM) even when only testing LED blink?

[GMA]

Hello @IOT_100,

1. Refer to Getting started with the EVLSERVO1 - User manual for more details.
2. Which user LED are you referring to? If it is the yellow LED1, note that PC14 is defined as an input for the start/stop button feature.

3. There is no dedicated EVLSERVO1 example, Firmware is fully handled with X-CUBE-MCSDK tool.
4. Try with VM switched on.