/** ****************************************************************************** * @file spi.c * @brief This file provides code for the configuration * of the SPI instances. ****************************************************************************** * @attention * *

© Copyright (c) 2020 STMicroelectronics. * All rights reserved.

* * This software component is licensed by ST under Ultimate Liberty license * SLA0044, the "License"; You may not use this file except in compliance with * the License. You may obtain a copy of the License at: * www.st.com/SLA0044 * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "spi.h" /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /* SPI1 init function */ void MX_SPI1_Init(void) { LL_SPI_InitTypeDef SPI_InitStruct = {0}; LL_GPIO_InitTypeDef GPIO_InitStruct = {0}; /* Peripheral clock enable */ LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1); LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA); /**SPI1 GPIO Configuration PA5 ------> SPI1_SCK PA7 ------> SPI1_MOSI */ GPIO_InitStruct.Pin = LL_GPIO_PIN_5|LL_GPIO_PIN_7; GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE; GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL; LL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* SPI1 DMA Init */ /* SPI1_TX Init */ LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_3, LL_DMA_DIRECTION_MEMORY_TO_PERIPH); LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PRIORITY_HIGH); LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MODE_CIRCULAR); LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PERIPH_NOINCREMENT); LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MEMORY_INCREMENT); LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_3, LL_DMA_PDATAALIGN_BYTE); LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MDATAALIGN_BYTE); SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX; SPI_InitStruct.Mode = LL_SPI_MODE_MASTER; SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT; SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_LOW; SPI_InitStruct.ClockPhase = LL_SPI_PHASE_1EDGE; SPI_InitStruct.NSS = LL_SPI_NSS_SOFT; SPI_InitStruct.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV16; SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST; SPI_InitStruct.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE; SPI_InitStruct.CRCPoly = 10; LL_SPI_Init(SPI1, &SPI_InitStruct); } /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/