177 lines
5.8 KiB
C
177 lines
5.8 KiB
C
/**
|
|
******************************************************************************
|
|
* File Name : SPI.c
|
|
* Description : This file provides code for the configuration
|
|
* of the SPI instances.
|
|
******************************************************************************
|
|
*
|
|
* Copyright (c) 2017 STMicroelectronics International N.V.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted, provided that the following conditions are met:
|
|
*
|
|
* 1. Redistribution of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. Neither the name of STMicroelectronics nor the names of other
|
|
* contributors to this software may be used to endorse or promote products
|
|
* derived from this software without specific written permission.
|
|
* 4. This software, including modifications and/or derivative works of this
|
|
* software, must execute solely and exclusively on microcontroller or
|
|
* microprocessor devices manufactured by or for STMicroelectronics.
|
|
* 5. Redistribution and use of this software other than as permitted under
|
|
* this license is void and will automatically terminate your rights under
|
|
* this license.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
|
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
|
|
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
|
|
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
|
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "spi.h"
|
|
|
|
#include "gpio.h"
|
|
#include "dma.h"
|
|
|
|
/* USER CODE BEGIN 0 */
|
|
|
|
/* USER CODE END 0 */
|
|
|
|
SPI_HandleTypeDef hspi2;
|
|
DMA_HandleTypeDef hdma_spi2_tx;
|
|
|
|
/* SPI2 init function */
|
|
void MX_SPI2_Init(void)
|
|
{
|
|
hspi2.Instance = SPI2;
|
|
hspi2.Init.Mode = SPI_MODE_MASTER;
|
|
hspi2.Init.Direction = SPI_DIRECTION_2LINES;
|
|
hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
|
|
hspi2.Init.CLKPolarity = SPI_POLARITY_HIGH;
|
|
hspi2.Init.CLKPhase = SPI_PHASE_2EDGE;
|
|
hspi2.Init.NSS = SPI_NSS_SOFT;
|
|
hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
|
|
hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
|
|
hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
|
|
hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
|
|
hspi2.Init.CRCPolynomial = 10;
|
|
if (HAL_SPI_Init(&hspi2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
}
|
|
|
|
void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
|
|
{
|
|
|
|
GPIO_InitTypeDef GPIO_InitStruct;
|
|
if(spiHandle->Instance==SPI2)
|
|
{
|
|
/* USER CODE BEGIN SPI2_MspInit 0 */
|
|
|
|
/* USER CODE END SPI2_MspInit 0 */
|
|
/* Peripheral clock enable */
|
|
__HAL_RCC_SPI2_CLK_ENABLE();
|
|
|
|
/**SPI2 GPIO Configuration
|
|
PC2 ------> SPI2_MISO
|
|
PC3 ------> SPI2_MOSI
|
|
PB13 ------> SPI2_SCK
|
|
*/
|
|
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
|
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
|
|
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = GPIO_PIN_13;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
|
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
|
|
/* Peripheral DMA init*/
|
|
|
|
hdma_spi2_tx.Instance = DMA1_Stream4;
|
|
hdma_spi2_tx.Init.Channel = DMA_CHANNEL_0;
|
|
hdma_spi2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
|
|
hdma_spi2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
|
|
hdma_spi2_tx.Init.MemInc = DMA_MINC_ENABLE;
|
|
hdma_spi2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
|
|
hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
|
|
hdma_spi2_tx.Init.Mode = DMA_NORMAL;
|
|
hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
|
|
hdma_spi2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
|
if (HAL_DMA_Init(&hdma_spi2_tx) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
__HAL_LINKDMA(spiHandle,hdmatx,hdma_spi2_tx);
|
|
|
|
/* USER CODE BEGIN SPI2_MspInit 1 */
|
|
|
|
/* USER CODE END SPI2_MspInit 1 */
|
|
}
|
|
}
|
|
|
|
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
|
|
{
|
|
|
|
if(spiHandle->Instance==SPI2)
|
|
{
|
|
/* USER CODE BEGIN SPI2_MspDeInit 0 */
|
|
|
|
/* USER CODE END SPI2_MspDeInit 0 */
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_SPI2_CLK_DISABLE();
|
|
|
|
/**SPI2 GPIO Configuration
|
|
PC2 ------> SPI2_MISO
|
|
PC3 ------> SPI2_MOSI
|
|
PB13 ------> SPI2_SCK
|
|
*/
|
|
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_2|GPIO_PIN_3);
|
|
|
|
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13);
|
|
|
|
/* Peripheral DMA DeInit*/
|
|
HAL_DMA_DeInit(spiHandle->hdmatx);
|
|
}
|
|
/* USER CODE BEGIN SPI2_MspDeInit 1 */
|
|
|
|
/* USER CODE END SPI2_MspDeInit 1 */
|
|
}
|
|
|
|
/* USER CODE BEGIN 1 */
|
|
|
|
/* USER CODE END 1 */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|