Any one have an any idea Of firmware development of UG96 GPRS module with STM32H743ZI controller

static void FS_FileOperations(void) { FRESULT res; /* FatFs function common result code */ uint32_t byteswritten, bytesread; /* File write/read counts */ uint8_t wtext[] = "This is STM32 working with FatFs uSD + FreeRTOS"; /* File write buffer */ /* ...