*
This commit is contained in:
@@ -0,0 +1,216 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* File Name : SPI.c
|
||||
* Description : This file provides code for the configuration
|
||||
* of the SPI instances.
|
||||
******************************************************************************
|
||||
* This notice applies to any and all portions of this file
|
||||
* that are not between comment pairs USER CODE BEGIN and
|
||||
* USER CODE END. Other portions of this file, whether
|
||||
* inserted by the user or by software development tools
|
||||
* are owned by their respective copyright owners.
|
||||
*
|
||||
* Copyright (c) 2018 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 hspi3;
|
||||
DMA_HandleTypeDef hdma_spi3_tx;
|
||||
DMA_HandleTypeDef hdma_spi3_rx;
|
||||
|
||||
/* SPI3 init function */
|
||||
void MX_SPI3_Init(void)
|
||||
{
|
||||
|
||||
hspi3.Instance = SPI3;
|
||||
hspi3.Init.Mode = SPI_MODE_MASTER;
|
||||
hspi3.Init.Direction = SPI_DIRECTION_2LINES;
|
||||
hspi3.Init.DataSize = SPI_DATASIZE_16BIT;
|
||||
hspi3.Init.CLKPolarity = SPI_POLARITY_LOW;
|
||||
hspi3.Init.CLKPhase = SPI_PHASE_2EDGE;
|
||||
hspi3.Init.NSS = SPI_NSS_SOFT;
|
||||
hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
|
||||
hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;
|
||||
hspi3.Init.TIMode = SPI_TIMODE_DISABLE;
|
||||
hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
|
||||
hspi3.Init.CRCPolynomial = 10;
|
||||
if (HAL_SPI_Init(&hspi3) != HAL_OK)
|
||||
{
|
||||
_Error_Handler(__FILE__, __LINE__);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
|
||||
{
|
||||
|
||||
GPIO_InitTypeDef GPIO_InitStruct;
|
||||
if(spiHandle->Instance==SPI3)
|
||||
{
|
||||
/* USER CODE BEGIN SPI3_MspInit 0 */
|
||||
|
||||
/* USER CODE END SPI3_MspInit 0 */
|
||||
/* SPI3 clock enable */
|
||||
__HAL_RCC_SPI3_CLK_ENABLE();
|
||||
|
||||
/**SPI3 GPIO Configuration
|
||||
PC10 ------> SPI3_SCK
|
||||
PC11 ------> SPI3_MISO
|
||||
PC12 ------> SPI3_MOSI
|
||||
*/
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLDOWN; // Idle clock and MOSI low.
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
|
||||
GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
|
||||
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
||||
|
||||
// MISO pull-up required for disconnect detection on SPI encoders with even parity
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_11;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
||||
|
||||
/* SPI3 DMA Init */
|
||||
/* SPI3_TX Init */
|
||||
hdma_spi3_tx.Instance = DMA1_Stream7;
|
||||
hdma_spi3_tx.Init.Channel = DMA_CHANNEL_0;
|
||||
hdma_spi3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
|
||||
hdma_spi3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
|
||||
hdma_spi3_tx.Init.MemInc = DMA_MINC_ENABLE;
|
||||
|
||||
if(spiHandle->Init.DataSize == SPI_DATASIZE_8BIT){
|
||||
hdma_spi3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
|
||||
hdma_spi3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
|
||||
} else {
|
||||
hdma_spi3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
|
||||
hdma_spi3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
|
||||
}
|
||||
|
||||
hdma_spi3_tx.Init.Mode = DMA_NORMAL;
|
||||
hdma_spi3_tx.Init.Priority = DMA_PRIORITY_HIGH; // SPI TX must have higher priority than SPI RX
|
||||
hdma_spi3_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
||||
if (HAL_DMA_Init(&hdma_spi3_tx) != HAL_OK)
|
||||
{
|
||||
_Error_Handler(__FILE__, __LINE__);
|
||||
}
|
||||
|
||||
__HAL_LINKDMA(spiHandle,hdmatx,hdma_spi3_tx);
|
||||
|
||||
/* SPI3_RX Init */
|
||||
hdma_spi3_rx.Instance = DMA1_Stream0;
|
||||
hdma_spi3_rx.Init.Channel = DMA_CHANNEL_0;
|
||||
hdma_spi3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
|
||||
hdma_spi3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
|
||||
hdma_spi3_rx.Init.MemInc = DMA_MINC_ENABLE;
|
||||
if (spiHandle->Init.DataSize == SPI_DATASIZE_8BIT) {
|
||||
hdma_spi3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
|
||||
hdma_spi3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
|
||||
} else {
|
||||
hdma_spi3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
|
||||
hdma_spi3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
|
||||
}
|
||||
hdma_spi3_rx.Init.Mode = DMA_NORMAL;
|
||||
hdma_spi3_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
|
||||
hdma_spi3_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
||||
if (HAL_DMA_Init(&hdma_spi3_rx) != HAL_OK)
|
||||
{
|
||||
_Error_Handler(__FILE__, __LINE__);
|
||||
}
|
||||
|
||||
__HAL_LINKDMA(spiHandle,hdmarx,hdma_spi3_rx);
|
||||
|
||||
/* SPI3 interrupt Init */
|
||||
//HAL_NVIC_SetPriority(SPI3_IRQn, 3, 0);
|
||||
//HAL_NVIC_EnableIRQ(SPI3_IRQn);
|
||||
/* USER CODE BEGIN SPI3_MspInit 1 */
|
||||
|
||||
/* USER CODE END SPI3_MspInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
|
||||
{
|
||||
|
||||
if(spiHandle->Instance==SPI3)
|
||||
{
|
||||
/* USER CODE BEGIN SPI3_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END SPI3_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_SPI3_CLK_DISABLE();
|
||||
|
||||
/**SPI3 GPIO Configuration
|
||||
PC10 ------> SPI3_SCK
|
||||
PC11 ------> SPI3_MISO
|
||||
PC12 ------> SPI3_MOSI
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12);
|
||||
|
||||
/* SPI3 DMA DeInit */
|
||||
HAL_DMA_DeInit(spiHandle->hdmatx);
|
||||
HAL_DMA_DeInit(spiHandle->hdmarx);
|
||||
|
||||
/* SPI3 interrupt Deinit */
|
||||
HAL_NVIC_DisableIRQ(SPI3_IRQn);
|
||||
/* USER CODE BEGIN SPI3_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END SPI3_MspDeInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
Reference in New Issue
Block a user