Connection faiLED, No response, check the communication cable, the power on the board or the baudrate (set to 9600 bps)

[Curve Wrecker]

I did connected the board to PC with USB2.0 cable, and I suuplied 24V DC to the board(STEVAL-SPIN3204) and set the baudrate to 9600 bps, ​ still this problem happens.

[Gael A]

Hello Curve Wrecker,

May I ask which version of the MCSDK you are using, as well as the IDE you used to flash the Firmware on the board ?

Regards,

Gaël A.

[Curve Wrecker]

I'm using version 5.4.8, and I chose Keil MDK-ARM V5 as the target Toolchain. When I build the project,I also encountered error L6406E but I don't know how to deal with it.

[Gael A]

The L6406E error refers to a lack of space in your target MCU. If you are using a free licence for Keil, maybe there are some limitations about the size of the program.

Have you tried generating the project on CubeIDE ?

https://www.st.com/en/development-tools/stm32cubeide.html

Regards,

Gaël A.