TouchGFX+stm32f4+FSMC+8080,I have referred to the 412-discovery project,but the flushFrameBuffer is not responding,and the os is blocking

[F1412.1]

MX congiuration:

FreeRTOS task:

XHAL:

result:

 

because my custom board not have the Tearing Effect PIN,so I connectec a 10Hz square wave

when the Semaphore is released.the os is blocking