I created a project with multiple screens and i want to recceive data and display them on the 4th screen so i created a task and a queue . I followed the MVP model and  int the model class i put the code in the tick function but when i run the code t...

I tried to send a LIN frame by creating a task .The code didn't conatin any error but the frame wasn't sent What could be the problem ? This is my project 

I'm using stm32H750B-DK and i'm trying to send a frame via LIN protocole every one second .but when i run the code nothing happen .when debugging i found that the code blocked in an endless loop in SCB_EnableDCache() function