(TMS570LC4, nested interrupt, C++, FreeRTOS V9.0.0rc2, compiler TI v5.2.7, rtos running ok). Considering ~~~
portTICKPERIODMS is not used ANYWHERE in the FreeRTOS source code, it is only provided as a convenience, and in fact, its use is not recommended now as the pdTICKSTOMS() macro should be used in its place. FreeRTOS V9.0.0 (not the release candidate) allows pdMSTOTICKS() to be overridden, should the default implementation not give the accuracy required (it considers speed more). portTICKPERIODMS and pdMSTOTICKS() is used in a lot of places in example code and external components, but again for convenience, and FreeRTOS has no dependency on it. That all said – it is rarely a good idea to set the tick rate greater than 1KHz – 100Hz being typical.
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