p_lusterinc_camera_focallength_encoder_subboard/usersrc/usermain.c

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "main.h"
#include "usart.h"
#include "spi.h"

#define READ_CMD 0x80
#define SPI_TIMEOUT_VALUE 1000
#define SPI_CS_Enable() HAL_GPIO_WritePin(SPI_SEL_GPIO_Port, SPI_SEL_Pin, GPIO_PIN_RESET)
#define SPI_CS_Disable() HAL_GPIO_WritePin(SPI_SEL_GPIO_Port, SPI_SEL_Pin, GPIO_PIN_SET)

bool BSP_Read(uint8_t *pData, uint8_t register_address, uint32_t Size)
{
  uint8_t cmd;
  cmd = READ_CMD;
  if (register_address <= 0x3F)
  {
    cmd += register_address;
  }
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_7, GPIO_PIN_SET);
  SPI_CS_Enable();
  HAL_SPI_Transmit(&hspi1, &cmd, 1, SPI_TIMEOUT_VALUE);
  // if (HAL_SPI_Receive(&hspi1, pData, Size, SPI_TIMEOUT_VALUE) != HAL_OK)
  // {
  //   return false;
  // }
  SPI_CS_Disable();
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_7, GPIO_PIN_SET);
  return true;
}

// static void norflash_send_address(uint32_t address)
// {
//   if (g_norflash_type == W25Q256) /* ֻ��W25Q256֧��4�ֽڵ�ַģʽ */
//   {
//     spi1_read_write_byte((uint8_t)((address) >> 24)); /* ���� bit31 ~ bit24 ��ַ */
//   }
//   spi1_read_write_byte((uint8_t)((address) >> 16)); /* ���� bit23 ~ bit16 ��ַ */
//   spi1_read_write_byte((uint8_t)((address) >> 8));  /* ���� bit15 ~ bit8  ��ַ */
//   spi1_read_write_byte((uint8_t)address);           /* ���� bit7  ~ bit0  ��ַ */
// }

uint8_t spi1_read_write_byte(uint8_t txdata)
{
  uint8_t rxdata;
  HAL_SPI_TransmitReceive(&hspi1, &txdata, &rxdata, 1, 1000);
  return rxdata;
}

void norflash_read(uint8_t *pbuf, uint32_t addr, uint16_t datalen)
{
  uint16_t i;

  SPI_CS_Enable();
  spi1_read_write_byte(0X86);

  // for (i = 0; i < datalen; i++)
  // {
  //   pbuf[i] = spi1_read_write_byte(0XFF);
  // }

  SPI_CS_Disable();
}

void user_main()
{
  uint8_t temp;
  SPI_CS_Disable();

  while (1)
  {
    // BSP_Read(&temp, 0X06, 1);
    norflash_read(&temp, 0x06, 1);

    // HAL_UART_Transmit(&huart1, &temp, 1, 100);
    HAL_Delay(100);
  }
}