7 months, 2 weeks ago.

STM32-F411RE won't compile in either TrueSTUDIO or Keil

I've been trying to blink an LED the past three days now and I've updated the firmware on the 411RE board, tried both TrueStudio and Keil IDE and I stll get the

'selected processor does not support 'sev' in Thumb mode' or just 'selected processor does not support '_' in Thumb mode' after building the program.

Has anyone else ran into the same problem?

1 Answer

7 months ago.

Hi Christopher,

I'd advise you to try our blinky example with online IDE, that only takes you 5 min to blink the LED.

https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-blinky/

Regards, Desmond