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 "tim.h"

#define READ_CMD 0x80
#define SPI_TIMEOUT_VALUE 1000
#define SPI_CS_1() HAL_GPIO_WritePin(SEL_GPIO_Port, SEL_Pin, GPIO_PIN_SET)       /*  */
#define SPI_CS_0() HAL_GPIO_WritePin(SEL_GPIO_Port, SEL_Pin, GPIO_PIN_RESET)     /*  */
#define SPI_SCK_1() HAL_GPIO_WritePin(CLK_GPIO_Port, CLK_Pin, GPIO_PIN_SET)      /* SCK = 1 */
#define SPI_SCK_0() HAL_GPIO_WritePin(CLK_GPIO_Port, CLK_Pin, GPIO_PIN_RESET)    /* SCK = 0 */
#define SPI_MOSI_1() HAL_GPIO_WritePin(MOSI_GPIO_Port, MOSI_Pin, GPIO_PIN_SET)   /* MOSI = 1 */
#define SPI_MOSI_0() HAL_GPIO_WritePin(MOSI_GPIO_Port, MOSI_Pin, GPIO_PIN_RESET) /* MOSI = 0 */
#define SPI_READ_MISO() HAL_GPIO_ReadPin(MISO_GPIO_Port, MISO_Pin)               /* 读MISO口线状态 */

#define Dummy_Byte 0xFF // 读取时MISO发送的数据，可以为任意数据

#define spi_delay_us 5
#define spi_table_type_size 50

typedef enum
{
  SPI_SEL_TYPE = 0,
  SPI_SCK_TYPE,
  SPI_MOSI_TYPE,
  SPI_MISO_TYPE,
  SPI_TYPE_NUMBER,
} SPI_TYPE;

uint8_t table[SPI_TYPE_NUMBER][spi_table_type_size] = {
    {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}, // sel
    {1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, // sck
    {1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, // mosi
    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, // miso
};

void sys_delay_us(uint32_t us)
{
  uint16_t counter = 0;
  __HAL_TIM_SET_COUNTER(&htim7, 0);
  HAL_TIM_Base_Start(&htim7);
  while (counter < us)
  {
    counter = __HAL_TIM_GET_COUNTER(&htim7);
  }
  HAL_TIM_Base_Stop(&htim7);
}

void set_spi_table_sel(uint8_t startoff)
{
  for (size_t i = 0; i < spi_table_type_size; i++)
  {
    if (i < startoff)
    {
      table[SPI_SEL_TYPE][i] = 1;
    }
    else if (i >= startoff && i < (startoff + 35))
    {
      table[SPI_SEL_TYPE][i] = 0;
    }
    else
    {
      table[SPI_SEL_TYPE][i] = 1;
    }
  }
}

void set_spi_table_sck(uint8_t startoff)
{
  bool clocklevel = false;
  for (size_t i = 0; i < spi_table_type_size; i++)
  {
    if (i < startoff)
    {
      table[SPI_SCK_TYPE][i] = 1;
    }
    else if (i >= startoff && i < (startoff + 16))
    {

      (clocklevel) ? (table[SPI_SCK_TYPE][i] = 1) : (table[SPI_SCK_TYPE][i] = 0);
      clocklevel = !clocklevel;
    }
    else
    {
      table[SPI_SCK_TYPE][i] = 1;
    }
  }
}

void set_spi_table_mosi(uint8_t startoff, uint8_t txdata)
{
  HAL_UART_Transmit(&huart1, &txdata, 1, 100);
  for (size_t i = 0; i < spi_table_type_size; i += 2)
  {
    if (i < startoff)
    {
      table[SPI_MOSI_TYPE][i] = 1;
      table[SPI_MOSI_TYPE][i + 1] = 1;
    }
    else if ((i >= startoff) && (i < (startoff + 16)))
    {
      table[SPI_MOSI_TYPE][i] = 1;
      (txdata & 0x80) ? (table[SPI_MOSI_TYPE][i] = 1), (table[SPI_MOSI_TYPE][i + 1] = 1) : (table[SPI_MOSI_TYPE][i] = 0), (table[SPI_MOSI_TYPE][i + 1] = 0);
      txdata = txdata << 1;
    }
    else if ((i >= startoff + 16) && (i < (startoff + 32)))
    {
      table[SPI_MOSI_TYPE][i] = 1;
      table[SPI_MOSI_TYPE][i + 1] = 1;
    }
    else
    {
      table[SPI_MOSI_TYPE][i] = 1;
      table[SPI_MOSI_TYPE][i + 1] = 1;
    }
  }
}

void dotable(uint8_t txdata)
{
  int sel_startoff = 2;
  int clock_startoff = 4;
  int mosi_startoff = 4;

  set_spi_table_sel(sel_startoff);
  // set_spi_table_sck(clock_startoff);
  // set_spi_table_mosi(mosi_startoff, txdata);

  for (size_t i = 0; i < spi_table_type_size; i++)
  {
    table[SPI_SEL_TYPE][i] ? SPI_CS_1() : SPI_CS_0();
    table[SPI_SCK_TYPE][i] ? SPI_SCK_1() : SPI_SCK_0();
    table[SPI_MOSI_TYPE][i] ? SPI_MOSI_1() : SPI_MOSI_0();
    sys_delay_us(spi_delay_us);
  }
}

void user_main()
{
  // uint8_t temp;

  SPI_CS_1();   // 片选
  SPI_SCK_1();  // 时钟空闲高电平
  SPI_MOSI_1(); // 数据线空闲高电平

  while (1)
  {
    dotable(0x86);
    // HAL_UART_Transmit(&huart1, &temp, 1, 100);
    HAL_Delay(10);
  }
}