149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
/**
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******************************************************************************
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* File Name : SPI.c
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* Description : This file provides code for the configuration
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* of the SPI instances.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "spi.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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SPI_HandleTypeDef hspi2;
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DMA_HandleTypeDef hdma_spi2_rx;
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DMA_HandleTypeDef hdma_spi2_tx;
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/* SPI2 init function */
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void MX_SPI2_Init(void)
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{
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hspi2.Instance = SPI2;
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hspi2.Init.Mode = SPI_MODE_MASTER;
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hspi2.Init.Direction = SPI_DIRECTION_2LINES;
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hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
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hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
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hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
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hspi2.Init.NSS = SPI_NSS_SOFT;
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hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
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hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
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hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
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hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
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hspi2.Init.CRCPolynomial = 10;
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if (HAL_SPI_Init(&hspi2) != HAL_OK)
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{
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Error_Handler();
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}
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}
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void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(spiHandle->Instance==SPI2)
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{
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/* USER CODE BEGIN SPI2_MspInit 0 */
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/* USER CODE END SPI2_MspInit 0 */
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/* SPI2 clock enable */
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__HAL_RCC_SPI2_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**SPI2 GPIO Configuration
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PB13 ------> SPI2_SCK
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PB14 ------> SPI2_MISO
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PB15 ------> SPI2_MOSI
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* SPI2 DMA Init */
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/* SPI2_RX Init */
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hdma_spi2_rx.Instance = DMA1_Channel4;
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hdma_spi2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_spi2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_spi2_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_spi2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_spi2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_spi2_rx.Init.Mode = DMA_NORMAL;
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hdma_spi2_rx.Init.Priority = DMA_PRIORITY_LOW;
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if (HAL_DMA_Init(&hdma_spi2_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(spiHandle,hdmarx,hdma_spi2_rx);
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/* SPI2_TX Init */
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hdma_spi2_tx.Instance = DMA1_Channel5;
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hdma_spi2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_spi2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_spi2_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_spi2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_spi2_tx.Init.Mode = DMA_NORMAL;
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hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
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if (HAL_DMA_Init(&hdma_spi2_tx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(spiHandle,hdmatx,hdma_spi2_tx);
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/* USER CODE BEGIN SPI2_MspInit 1 */
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/* USER CODE END SPI2_MspInit 1 */
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}
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}
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void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
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{
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if(spiHandle->Instance==SPI2)
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{
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/* USER CODE BEGIN SPI2_MspDeInit 0 */
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/* USER CODE END SPI2_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_SPI2_CLK_DISABLE();
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/**SPI2 GPIO Configuration
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PB13 ------> SPI2_SCK
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PB14 ------> SPI2_MISO
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PB15 ------> SPI2_MOSI
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);
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/* SPI2 DMA DeInit */
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HAL_DMA_DeInit(spiHandle->hdmarx);
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HAL_DMA_DeInit(spiHandle->hdmatx);
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/* USER CODE BEGIN SPI2_MspDeInit 1 */
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/* USER CODE END SPI2_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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