Introduction - If you have any usage issues, please Google them yourself
UCOS-III in support of a time slice of the round-robin scheduling, in order to reduce the interrupt off time, the kernel in the handling of the critical section using a number of methods, such as to prevent interruption in access to critical sections of the code, to break things in two steps do, that is to interrupt the operation of the kernel to do only save the actual operating postponed to a called OS_IntQTask done! This procedure can be used in a way against scheduling critical sections of code to deal with, but also greatly reduces the time to break off! But this does not mean that this method is optimal, and it is consumed in the task switching and interrupt time off to balance, so UCOS-III also supports the use of off interrupt method!