Hello guys, I'm working with the STM32L0538-Discovery board because I want to use the e-paper display. The demo code works well but I struggle to implement mine. My programm is just displaying a character but the epaper never refresh.

[MaxMag]

..

[MaxMag]

int main(void)
{
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
 
 /* MCU Configuration--------------------------------------------------------*/
 
 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 HAL_Init();
 
 /* USER CODE BEGIN Init */
 
 /* USER CODE END Init */
 
 /* Configure the system clock */
 SystemClock_Config();
 
 /* USER CODE BEGIN SysInit */
 
 /* USER CODE END SysInit */
 
 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_I2C1_Init();
 MX_SPI1_Init();
 MX_SPI2_Init();
 MX_TSC_Init();
 MX_USART1_UART_Init();
 MX_USB_PCD_Init();
 /* USER CODE BEGIN 2 */
 BSP_EPD_Init();
 
 /* USER CODE END 2 */
 
 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
 while (1)
 {
	BSP_EPD_DisplayChar(0, 0, 31);
	BSP_EPD_RefreshDisplay();
 /* USER CODE END WHILE */
 
 /* USER CODE BEGIN 3 */
 }
 /* USER CODE END 3 */
}

The MX configuration is let by default