stm32-shifter-registre-spi

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;

/* USER CODE BEGIN PV */
uint8_t dataOut[9]={0x00,0x01,0x03,0x07,0xF,0x1F,0x3F,0x7F,0xFF};
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
/* USER CODE BEGIN PFP */
void shiftOut(uint8_t * data , uint16_t size);
/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void shiftOut(uint8_t * data , uint16_t size)
{
    HAL_GPIO_WritePin(LATCH_GPIO_Port, LATCH_Pin, GPIO_PIN_RESET);
    HAL_SPI_Transmit(&hspi1,data,size,100);
    HAL_GPIO_WritePin(LATCH_GPIO_Port, LATCH_Pin, GPIO_PIN_SET);
}
/* USER CODE END 0 */

int main(void)
{
  /* 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_SPI1_Init();

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

    /* USER CODE BEGIN 3 */
      for (int i=0;i<9;i++)
      {
          shiftOut(dataOut+i,1);
          HAL_Delay(500);
      }
  }
  /* USER CODE END 3 */
}