LCD 1602 Parallel Display with Nucleo STM32F446RE using STM32CubeIDE

Prerequisites

This project assumes you have already installed STM32CubeIDE. You need to have previously done a basic blink sketch with Nucleo STM32F446RE using STM32CubeIDE. I have made a complete video from installing STM32CubeIDE to LED blink program. You can watch it by clicking this link. https://www.youtube.com/watch?v=oAwZ0cjlmN8

Wiring Diagram

STM32CubeIDE Settings

Set PA6, PA7, PC7, PB4, PB5 and PB6 to GPIO_Output

Libraries

Inside Core/Inc Folder

Inside Core/Src Folder

Line no 11 of lcd.h, change to #include "stm32f4xx_hal.h"

Additional code on top of STM32CubeIDE generated code

/* USER CODE BEGIN Includes */
#include "lcd.h"
/* USER CODE END Includes */

  /* USER CODE BEGIN 2 */
  // Lcd_PortType ports[] = { D4_GPIO_Port, D5_GPIO_Port, D6_GPIO_Port, D7_GPIO_Port };
  Lcd_PortType ports[] = { GPIOC, GPIOB, GPIOA, GPIOA };
  // Lcd_PinType pins[] = {D4_Pin, D5_Pin, D6_Pin, D7_Pin};
  Lcd_PinType pins[] = {GPIO_PIN_7, GPIO_PIN_6, GPIO_PIN_7, GPIO_PIN_6};
  Lcd_HandleTypeDef lcd;
  // Lcd_create(ports, pins, RS_GPIO_Port, RS_Pin, EN_GPIO_Port, EN_Pin, LCD_4_BIT_MODE);
  lcd = Lcd_create(ports, pins, GPIOB, GPIO_PIN_5, GPIOB, GPIO_PIN_4, LCD_4_BIT_MODE);
  Lcd_cursor(&lcd, 0,1);
  Lcd_string(&lcd, "Nizar Mohideen");
    for ( int x = 1; x <= 200 ; x++ )
    {
      Lcd_cursor(&lcd, 1,7);
      Lcd_int(&lcd, x);
      HAL_Delay (1000);
    }
  /* USER CODE END 2 */

Wiring Diagram with Potentiometer and Resistor