Ok. I made it.
Another question … 
I get the interrupt. when i get the interrupt a ISR task is ON. But This Interrupt task process block my main task (another task.) I want it not to block my main task (i mean sd card recording.)
In my Freertos Config file.
Preemptive is 1 .
So Why this ISR to Task (interrupt task) block my main(sd card recording.) task ?
CAn I prevent this and how ?
DEar helpful Harmut ?