Hi, I am using a STM32F415 with V7.4.0 of FreeRTOS. I am working on an old project and can’t change the FreeRTOS Version. I am actualy having difficulties with FromISR functions, cause taskYIELDFROMISR and portYIELDFROMISR are defined nowhere. It seems that I can’t use those. Here is an example of when I use them : xSemaphoreGiveFromISR (FinEnvSemaphore, &xHigherPriorityTaskWoken); taskYIELDFROM_ISR(xHigherPriorityTaskWoken); I have looked into many FreeRTOS files and I only seen them in examples /* … */. How could I use those, then ?

It might be that you need to use portENDSWITCHINGISR() instead – it does exactly the same thing – just a different name. Is that defined?

The only definition of it is that one (in portmacro.h) : “#define portYIELD() vPortYieldFromISR() “#define portENDSWITCHINGISR( xSwitchRequired ) if( xSwitchRequired ) vPortYieldFromISR() I looked a bit deeper and it’s totaly it, thanks !