Printing things to the lcd

[mohdezzi7]

Hey nikola-v,

I am using your library or downloaded it from your github and it does not print when I try to use it in STM32cubeIDE. I am trying to print a simple line and box.

Have you come across this issue? If you have, could you let me know how to solve it?

I think I am using it correctly. I will send you sample code to demonstrate how I am using it (my main loop):

int main(void) { /* USER CODE BEGIN 1 / u8g2_t u8g2; / USER CODE END 1 */

/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */
HAL_ACC_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_USART2_UART_Init();
MX_I2C1_Init();
MX_SPI1_Init();
MX_I2C3_Init();
/* USER CODE BEGIN 2 */
u8g2_Setup_st7920_p_128x64_1(&u8g2, U8G2_R0, u8x8_byte_3wire_sw_spi, u8g2_gpio_and_delay_stm32);
u8g2_InitDisplay(&u8g2); // send init sequence to the display, display is in sleep mode after this,
u8g2_SetPowerSave(&u8g2, 0); // wake up display

HAL_GPIO_WritePin(LCD_RESET_GPIO_Port, LCD_RESET_Pin, RESET);
HAL_Delay(100);
HAL_GPIO_WritePin(LCD_RESET_GPIO_Port, LCD_RESET_Pin, SET);
HAL_Delay(200);

HAL_Delay(1000);



/* USER CODE END 2 */

/* Infinite loop */
/* USER CODE BEGIN WHILE */
HAL_ACC_Init();

//int16_t val_accel[3];

while (1)
{
	/* USER CODE END WHILE */

	/* USER CODE BEGIN 3 */
	//u8g2_DrawLine(&u8g2, 50,50, 100, 100);
	u8g2_DrawBox(&u8g2, 100, 50, 50, 40);
	u8g2_SendBuffer(&u8g2);
	TEST_ACC_GetVal();



	//TEST_UART_Blinky();
}
/* USER CODE END 3 */

}

.

[blacktamilan]

i am having similar trouble as well. This might help you. https://github.com/olikraus/u8g2/issues/840