230 lines
8.8 KiB
C
230 lines
8.8 KiB
C
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/**
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*******************************************************************************************************
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* @file fm33lg0xx_fl_spi.c
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* @author FMSH Application Team
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* @brief Src file of SPI FL Module
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*******************************************************************************************************
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* @attention
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*
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* Copyright (c) [2021] [Fudan Microelectronics]
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* THIS SOFTWARE is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*
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*******************************************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "fm33lg0xx_fl.h"
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/** @addtogroup FM33LG0XX_FL_Driver
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* @{
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*/
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/** @addtogroup SPI
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* @{
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*/
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#ifdef FL_SPI_DRIVER_ENABLED
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup SPI_FL_Private_Macros
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* @{
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*/
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#define IS_FL_SPI_INSTANCE(INTANCE) (((INTANCE) == SPI0)||\
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((INTANCE) == SPI1)||\
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((INTANCE) == SPI2))
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#define IS_FL_SPI_MODE(__VALUE__) (((__VALUE__) == FL_SPI_WORK_MODE_SLAVE)||\
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((__VALUE__) == FL_SPI_WORK_MODE_MASTER))
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#define IS_FL_SPI_BITORDER(__VALUE__) (((__VALUE__) == FL_SPI_BIT_ORDER_MSB_FIRST)||\
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((__VALUE__) == FL_SPI_BIT_ORDER_LSB_FIRST))
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#define IS_FL_SPI_DATAWIDT(__VALUE__) (((__VALUE__) == FL_SPI_DATA_WIDTH_8B)||\
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((__VALUE__) == FL_SPI_DATA_WIDTH_16B)||\
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((__VALUE__) == FL_SPI_DATA_WIDTH_24B)||\
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((__VALUE__) == FL_SPI_DATA_WIDTH_32B))
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#define IS_FL_SPI_CLOCK_PHASE(__VALUE__) (((__VALUE__) == FL_SPI_PHASE_EDGE1)||\
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((__VALUE__) == FL_SPI_PHASE_EDGE2))
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#define IS_FL_SPI_CLOCK_POLARITY(__VALUE__) (((__VALUE__) == FL_SPI_POLARITY_NORMAL)||\
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((__VALUE__) == FL_SPI_POLARITY_INVERT))
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#define IS_FL_SPI_BAUDRATE(__VALUE__) (((__VALUE__) == FL_SPI_BAUDRATE_DIV2)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV4)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV8)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV16)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV32)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV64)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV128)||\
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((__VALUE__) == FL_SPI_BAUDRATE_DIV256))
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#define IS_FL_SPI_TANSFERMODE(__VALUE__) (((__VALUE__) == FL_SPI_TRANSFER_MODE_FULL_DUPLEX)||\
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((__VALUE__) == FL_SPI_TRANSFER_MODE_HALF_DUPLEX))
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/**
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* @}
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*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup SPI_FL_EF_Init
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* @{
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*/
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/**
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* @brief 复位对应SPI寄存器.
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* @param SPIx
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* @retval ErrorStatus枚举值:
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* -FL_PASS 外设寄存器值恢复复位值
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* -FL_FAIL 未成功执行
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*/
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FL_ErrorStatus FL_SPI_DeInit(SPI_Type *SPIx)
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{
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assert_param(IS_FL_SPI_INSTANCE(SPIx));
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/* 使能外设复位 */
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FL_RMU_EnablePeripheralReset(RMU);
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if(SPIx == SPI0)
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{
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/* 复位SPI外设寄存器 */
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI0);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI0);
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/* 关闭外设总线始时钟和工作时钟 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI0);
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}
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else
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if(SPIx == SPI1)
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{
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/* 复位SPI外设寄存器 */
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI1);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI1);
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/* 关闭外设总线始时钟和工作时钟 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI1);
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}
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else
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if(SPIx == SPI2)
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{
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/* 复位SPI外设寄存器 */
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI2);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_SPI2);
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/* 关闭外设总线始时钟和工作时钟 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI2);
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}
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else
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{
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FL_RMU_DisablePeripheralReset(RMU);
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return FL_FAIL;
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}
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/* 锁定外设复位 */
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FL_RMU_DisablePeripheralReset(RMU);
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return FL_PASS;
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}
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/**
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* @brief 根据 SPI_InitStruct 的配置信息初始化对应外设入口地址的寄存器值.
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* @param SPIx SPIx
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* @param SPI_InitStruct 指向一个 @ref FL_SPI_InitTypeDef 结构体
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* 其中包含了外设的相关配置信息.
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* @retval ErrorStatus枚举值
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* -FL_FAIL 配置过程发生错误
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* -FL_PASS SPI配置成功
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*/
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FL_ErrorStatus FL_SPI_Init(SPI_Type *SPIx, FL_SPI_InitTypeDef *initStruct)
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{
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assert_param(IS_FL_SPI_INSTANCE(SPIx));
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assert_param(IS_FL_SPI_MODE(initStruct->mode));
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assert_param(IS_FL_SPI_BITORDER(initStruct->bitOrder));
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assert_param(IS_FL_SPI_DATAWIDT(initStruct->dataWidth));
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assert_param(IS_FL_SPI_BAUDRATE(initStruct->baudRate));
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assert_param(IS_FL_SPI_CLOCK_PHASE(initStruct->clockPhase));
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assert_param(IS_FL_SPI_CLOCK_POLARITY(initStruct->clockPolarity));
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if(SPIx == SPI0)
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{
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/* 外设总线始时钟 */
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI0);
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}
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else
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if(SPIx == SPI1)
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{
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/* 外设总线始时钟 */
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI1);
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}
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else
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if(SPIx == SPI2)
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{
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/* 外设总线始时钟 */
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_SPI2);
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}
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else
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{
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return FL_FAIL;
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}
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/* 选择NSS脚控制模式 */
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if(initStruct->softControl == FL_ENABLE)
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{
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FL_SPI_EnableSSNSoftControl(SPIx);
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}
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else
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{
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FL_SPI_DisableSSNSoftControl(SPIx);
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}
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/* 外设工作主从模式 */
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FL_SPI_SetWorkMode(SPIx, initStruct->mode);
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/* 总线通讯速率 */
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FL_SPI_SetClockDivision(SPIx, initStruct->baudRate);
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/* 数据bit方向 */
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FL_SPI_SetBitOrder(SPIx, initStruct->bitOrder);
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/* 总线数据位宽 */
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FL_SPI_SetDataWidth(SPIx, initStruct->dataWidth);
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/* 时钟相位 */
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FL_SPI_SetClockPhase(SPIx, initStruct->clockPhase);
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/* 传输模式 双工半双工 */
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FL_SPI_SetTransferMode(SPIx, initStruct->transferMode);
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/* 时钟极性 */
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FL_SPI_SetClockPolarity(SPIx, initStruct->clockPolarity);
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/* 使能 外设*/
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FL_SPI_Enable(SPIx);
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return FL_PASS;
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}
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/**
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* @brief 设置 SPI_InitStruct 为默认配置
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* @param SPI_InitStruct 指向需要将值设置为默认配置的结构体 @ref FL_SPI_InitTypeDef 结构体
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*
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* @retval None
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*/
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void FL_SPI_StructInit(FL_SPI_InitTypeDef *initStruct)
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{
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initStruct->softControl = FL_DISABLE;
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initStruct->mode = FL_SPI_WORK_MODE_MASTER;
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initStruct->baudRate = FL_SPI_CLK_DIV8;
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initStruct->bitOrder = FL_SPI_BIT_ORDER_MSB_FIRST;
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initStruct->dataWidth = FL_SPI_DATA_WIDTH_8B;
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initStruct->clockPolarity = FL_SPI_POLARITY_NORMAL;
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initStruct->clockPhase = FL_SPI_PHASE_EDGE1;
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initStruct->transferMode = FL_SPI_TRANSFER_MODE_FULL_DUPLEX;
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}
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/**
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* @}
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*/
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#endif /* FL_SPI_DRIVER_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/*************************(C) COPYRIGHT Fudan Microelectronics **** END OF FILE*************************/
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