[STM32U0] 【STM32U083测评】类似linux下的spidev_test开发与测试

cp -a Projects/NUCLEO-U083RC/Examples/SPI/SPI_FullDuplex_ComPolling_Master/ Projects/NUCLEO-U083RC/Examples/spidev_test/

PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_SYSCLK;

#include <stdio.h>

#include <string.h>

#include "main.h"



SPI_HandleTypeDef hspi1;

UART_HandleTypeDef huart2;



/* Buffer used for transmission */

static uint8_t aTxBuffer[] = "****SPI - external loop communication based on Polling **** SPI Message ******** SPI Message ******** SPI Message ****";



static uint8_t aRxBuffer[BUFFERSIZE];



#if defined(__ICCARM__)

/* New definition from EWARM V9, compatible with EWARM8 */

int iar_fputc(int ch);

#define PUTCHAR_PROTOTYPE int iar_fputc(int ch)

#elif defined ( __CC_ARM ) || defined(__ARMCC_VERSION)

/* ARM Compiler 5/6*/

#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)

#elif defined(__GNUC__)

#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)

#endif

PUTCHAR_PROTOTYPE

{

  /* Place your implementation of fputc here */

  /* e.g. write a character to the USART2 and Loop until the end of transmission */

  HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0xFFFF);



  return ch;

}



static void MX_USART2_UART_Init(void)

{



  /* USER CODE BEGIN USART2_Init 0 */



  /* USER CODE END USART2_Init 0 */



  /* USER CODE BEGIN USART2_Init 1 */



  /* USER CODE END USART2_Init 1 */

  huart2.Instance = USART2;

  huart2.Init.BaudRate = 115200;

  huart2.Init.WordLength = UART_WORDLENGTH_8B;

  huart2.Init.StopBits = UART_STOPBITS_1;

  huart2.Init.Parity = UART_PARITY_NONE;

  huart2.Init.Mode = UART_MODE_TX_RX;

  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;

  huart2.Init.OverSampling = UART_OVERSAMPLING_16;

  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;

  huart2.Init.ClockPrescaler = UART_PRESCALER_DIV1;

  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;

  if (HAL_UART_Init(&huart2) != HAL_OK)

  {

    Error_Handler();

  }

  if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)

  {

    Error_Handler();

  }

  if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)

  {

    Error_Handler();

  }

  if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN USART2_Init 2 */



  /* USER CODE END USART2_Init 2 */



}



void Error_Handler(void)

{

  while (1)

  {

    printf("error\n");

    HAL_Delay(1000);

  }

}



static void SystemClock_Config(void)

{

  RCC_OscInitTypeDef RCC_OscInitStruct = {0};

  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};



  /** Configure the main internal regulator output voltage

  */

  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);



  /** Initializes the RCC Oscillators according to the specified parameters

  * in the RCC_OscInitTypeDef structure.

  */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;

  RCC_OscInitStruct.MSIState = RCC_MSI_ON;

  RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;

  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_11;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

  {

    Error_Handler();

  }



  /** Initializes the CPU, AHB and APB buses clocks

  */

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

                              |RCC_CLOCKTYPE_PCLK1;

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;

  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;



  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)

  {

    Error_Handler();

  }

}



/**

  * [url=home.php?mod=space&uid=247401]@brief[/url] SPI1 Initialization Function

  * @param None

  * @retval None

  */

static void MX_SPI1_Init(void)

{

  hspi1.Instance = SPI1;

  hspi1.Init.Mode = SPI_MODE_MASTER;

  hspi1.Init.Direction = SPI_DIRECTION_2LINES;

  hspi1.Init.DataSize = SPI_DATASIZE_8BIT;

  hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;

  hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;

  hspi1.Init.NSS = SPI_NSS_SOFT;

  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;

  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;

  hspi1.Init.TIMode = SPI_TIMODE_DISABLE;

  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;

  hspi1.Init.CRCPolynomial = 7;

  hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;

  hspi1.Init.NSSPMode = SPI_NSS_PULSE_DISABLE;

  if (HAL_SPI_Init(&hspi1) != HAL_OK)

  {

    Error_Handler();

  }

}



int main(void)

{



  HAL_Init();



  SystemClock_Config();



  MX_USART2_UART_Init();

  MX_SPI1_Init();



  printf("** spi external loop test ** \n\r");

  printf("SysClockFreq:%ld\n", HAL_RCC_GetSysClockFreq());

  /* While the SPI in TransmitReceive process, user can transmit data through

     "aTxBuffer" buffer & receive data through "aRxBuffer" */

  /* Timeout is set to 5S */



  switch (HAL_SPI_TransmitReceive(&hspi1, (uint8_t *)aTxBuffer, (uint8_t *)aRxBuffer, BUFFERSIZE, 5000))

  {

    case HAL_OK:

      /* Communication is completed ___________________________________________ */

      /* Compare the sent and received buffers */

      printf("RX:\n%s\n", aRxBuffer);

      if (memcmp((uint8_t *)aTxBuffer, (uint8_t *)aRxBuffer, BUFFERSIZE))

      {

        /* Transfer error in transmission process */

        Error_Handler();

      }

      /* Turn LED4 on: Transfer in transmission/Reception process is correct */

      break;



    case HAL_TIMEOUT:

    /* An Error Occur ______________________________________________________ */

    case HAL_ERROR:

      /* Call Timeout Handler */

      Error_Handler();

      break;

    default:

      break;

  }



  for (;;)

        HAL_Delay(100000);

}