advanced-UART-main.c

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* Private variables ---------------------------------------------------------*/
UART_HandleTypeDef huart1;

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint16_t number[10] = { 0b00000011, 0b10011111, 0b00100101, 0b00001101,
                        0b10011001, 0b01001001, 0b01000001, 0b00011011, 
                        0b00000001, 0b00001001 };

/* USER CODE END 0 */

int main(void)
{
  /* USER CODE BEGIN 1 */
  int cnt=0;
  uint16_t data = 0;
  /* USER CODE END 1 */


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

  /* Configure the system clock */
  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
     static uint8_t cnt = 0;  // Counter from 0 to 9
     uint8_t data = number[cnt];  // Get the data for the current count

      HAL_GPIO_WritePin(GPIOA, SRCLR_Pin, GPIO_PIN_SET);
      HAL_GPIO_WritePin(OE_GPIO_Port, OE_Pin, GPIO_PIN_SET);

      for(int i = 0; i < 8; i++) {
          if(data & (1 << i)) {
              HAL_GPIO_WritePin(GPIOA, SER_Pin, GPIO_PIN_SET); // SER_Pin, 1
          } else {
              HAL_GPIO_WritePin(GPIOA, SER_Pin, GPIO_PIN_RESET); // SER_Pin, 0
          }
          HAL_GPIO_WritePin(GPIOA, SRCLK_Pin, GPIO_PIN_SET);
          HAL_GPIO_WritePin(GPIOA, SRCLK_Pin, GPIO_PIN_RESET);
      }

      HAL_GPIO_WritePin(GPIOA, RCLK_Pin, GPIO_PIN_SET);
      HAL_GPIO_WritePin(GPIOA, RCLK_Pin, GPIO_PIN_RESET);

      HAL_GPIO_WritePin(OE_GPIO_Port, OE_Pin, GPIO_PIN_RESET);
      HAL_GPIO_WritePin(GPIOA, SRCLR_Pin, GPIO_PIN_RESET);

      cnt = (cnt + 1) % 10;  // Increment counter and wrap around to 0 after 9
      HAL_Delay(1000);  // Delay to make the counter increment every second (adjust as needed)


  }
  /* USER CODE END 3 */
}