Show CPU usage and FPS count

Micropython
6

Hi @amirgon
Following your way, I modified the code and I now successfully see the FPS and CPU working correctly.The following code is the modification I made on STM32.

#define LV_TICK_CUSTOM 1
#if LV_TICK_CUSTOM
    #define LV_TICK_CUSTOM_INCLUDE "stm32f4xx_hal.h"         /*Header for the system time function*/
    #define LV_TICK_CUSTOM_SYS_TIME_EXPR (HAL_GetTick())    /*Expression evaluating to current system time in ms*/
#endif   /*LV_TICK_CUSTOM*/