Why taskYIELD() can't assign a specific time but vTaskDelay can?

[roctwo]

Hi!
Why taskYIELD() can't assign a specific time but vTaskDelay can?

[ESP_Sprite]

Because all taskYIELD does is tell the scheduler to re-evaluate which task to run. There's no sense of timed delay there; eg if the task calling taskYIELD still is the one with the highest priority, the thread calling taskYIELD will just continue running.