83 lines
2.8 KiB
C
83 lines
2.8 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) 2020 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 BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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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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/* SPI1 init function */
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void MX_SPI1_Init(void)
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{
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LL_SPI_InitTypeDef SPI_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* Peripheral clock enable */
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1);
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
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/**SPI1 GPIO Configuration
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PA5 ------> SPI1_SCK
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PA7 ------> SPI1_MOSI
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_5|LL_GPIO_PIN_7;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* SPI1 DMA Init */
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/* SPI1_TX Init */
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LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_3, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
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LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PRIORITY_HIGH);
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LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MODE_CIRCULAR);
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LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PERIPH_NOINCREMENT);
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LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MEMORY_INCREMENT);
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LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PDATAALIGN_BYTE);
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LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MDATAALIGN_BYTE);
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SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX;
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SPI_InitStruct.Mode = LL_SPI_MODE_MASTER;
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SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT;
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SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_LOW;
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SPI_InitStruct.ClockPhase = LL_SPI_PHASE_1EDGE;
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SPI_InitStruct.NSS = LL_SPI_NSS_SOFT;
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SPI_InitStruct.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV16;
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SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST;
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SPI_InitStruct.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
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SPI_InitStruct.CRCPoly = 10;
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LL_SPI_Init(SPI1, &SPI_InitStruct);
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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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