hi,
WE doing the finger print project in imx27,i am wroking on FREERTOs and have 3 tasks higher priority task is suspend by command vTaskSuspend and it goes to next higher priority task where i resume 1st higher priority task but it is not responding.. why?How t do

Can you check your code against some of the demos that use the suspend/resume mechanism to ensure you are using the API correct. I presume you have the demo tasks running correctly. Other than that please post a SHORT piece of code so we can see there is anything that is incorrect.