See the FreeRTOS demo for the STM32F429I-DISC1 discovery board... It works. So far I haven't been able to get it to work on the Nucleo STM32F411re.... Maybe some changes to the drivers specific to the boards......
On my STM32F429I Discovery-DISC1 I had to solder SB9 then it worked.Two things to check... 1. Your SWO clock freq... must be the same as main clock, in my case 180 Mhz. 2. Solder the bridge for you board, in my case SB9..... ...
