Delay functions map cleanly between the two APIs:
|
CMSIS-RTOS name |
FreeRTOS functions called | Notes |
|
osDelay |
vTaskDelay |
osDelay is in ms or ticks, depending on which documentation and comments you believe. Be sure to check your CMSIS-RTOS implementation of osDelay() if a Systick frequency of something other than 1 kHz is used! |
|
osDelayUntil |
vTaskDelayUntil, xTaskGetTickCount |
These basic delay functions work in very similar ways – the biggest difference to keep in mind is that CMSIS-RTOS specifies osDelay in milliseconds instead of ticks, as FreeRTOS does.