Can't Get Blinky Project working With FreeRTOS

andrewralea · ‎2025-02-13

I am new to FreeRTOS ( RTOS in general, although I am very familiar with baremetal) and am following along with this video:https://www.youtube.com/watch?v=CdpgqpuPSyQ&t=4s

I am using a STM32F3DISCOVERY board so I had to make some minor tweaks to follow along, seemingly just pin numbering. I am using the default pin configurations and clock configuration. I am using TIM6 as Timebase source. I cannot seem to figure out why my LEDs are not blinking. I created a baremetal project to confirm the config of the pins is good and there I can get them toggling. I see the TIM6 CNT incrementing and wrapping so that is working. I tried to use breakpoints to see if I ever get back to my task and aside from the first hit during initialization, I never get back.

Not sure what I did wrong, but it appears my tasks only occur once and then terminate but I cannot figure out why. Any tips on how to debug this? Thank you

mƎALLEm · ‎2025-02-18

Hello @andrewralea ,

I have reproduced the behavior and it seems the system tick is not active in cmsis_os2.c.

I've escalated the behavior internally for analysis and fix. Internal ticket 203484 not accessible by the community users.

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