The led winking 50ms using the code:
lv_timer_t * task_1 = lv_timer_create(u_task_1, 50, ui);
void u_task_1(lv_timer_t * task_1)
It runs OK . But the screen refresh frequency will be slow if display the background img which is a bin file using fatfs load. Besides,the refresh frequency is OK if the img is C array be in MCU.
How to solve the problem? thanks a lot.
Add the relevant code snippets here.
The code block(s) should be between
/*You code here*/
If possible, add screenshots and/or videos about the current state.