218 lines
9.0 KiB
C
218 lines
9.0 KiB
C
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/**
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****************************************************************************************************
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* @file fm33lg0xx_fl_cmu.c
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* @author FMSH Application Team
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* @brief Src file of CMU 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 U7816
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* @{
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*/
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#ifdef FL_U7816_DRIVER_ENABLED
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/* Private macros ------------------------------------------------------------*/
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//配置参数：
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#define IS_FL_U7816_INSTANCE(INTANCE) ((INTANCE) == U7816)
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#define IS_FL_U7816_CLOCK_FRQUENCE(__VALUE__) (((__VALUE__) >=1000000)&&\
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((__VALUE__) <= 5000000))
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#define IS_FL_U7816_TX_PARITHERROR_AUTO_RETRY(__VALUE__) (((__VALUE__) == FL_DISABLE)||\
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((__VALUE__) == FL_ENABLE))
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#define IS_FL_U7816_RETRY_CNT(__VALUE__) (((__VALUE__) == FL_U7816_RETRY_COUNT_1)||\
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((__VALUE__) == FL_U7816_RETRY_COUNT_3))
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#define IS_FL_U7816_BLOCKGUARD(__VALUE__) (((__VALUE__) == FL_ENABLE)||\
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((__VALUE__) == FL_DISABLE))
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#define IS_FL_U7816_PARITH(__VALUE__) (((__VALUE__) == FL_U7816_PARITY_EVEN)||\
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((__VALUE__) == FL_U7816_PARITY_ODD )||\
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((__VALUE__) == FL_U7816_PARITY_ALWAYS_1)||\
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((__VALUE__) == FL_U7816_PARITY_NONE))
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#define IS_FL_U7816_RX_GUARD(__VALUE__) (((__VALUE__) == FL_U7816_RX_GUARD_TIME_2ETU)||\
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((__VALUE__) == FL_U7816_RX_GUARD_TIME_1ETU))
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#define IS_FL_U7816_ERROR_GUARD(__VALUE__) (((__VALUE__) == FL_U7816_ERROR_GUARD_TIME_2ETU)||\
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((__VALUE__) == FL_U7816_ERROR_GUARD_TIME_1ETU))
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#define IS_FL_U7816_ERROR_SIGNALWIDTH(__VALUE__) (((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_2ETU)||\
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((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_1P5ETU)||\
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((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_1ETU))
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#define IS_FL_U7816_RX_AUTO_ERROR_SIG(__VALUE__) (((__VALUE__) == FL_DISABLE)||\
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((__VALUE__) == FL_ENABLE))
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#define IS_FL_U7816_BIT_DIRECTION(__VALUE__) (((__VALUE__) == FL_U7816_BIT_ORDER_LSB_FIRST)||\
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((__VALUE__) == FL_U7816_BIT_ORDER_MSB_FIRST))
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/**
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* @}
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*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup U7816_FL_EF_Init
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* @{
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*/
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/**
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* @brief 复位对应U7816寄存器.
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* @param U7816x
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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_U7816_DeInit(U7816_Type *U7816x)
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{
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assert_param(IS_FL_U7816_INSTANCE(U7816x));
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/* 使能外设复位 */
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FL_RMU_EnablePeripheralReset(RMU);
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/* 复位U7816外设寄存器 */
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_U7816);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_U7816);
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/* 关闭外设总线时钟与工作时钟 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_U7816);
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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 U7816_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 U7816x U7816x
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* @param U7816_InitStruct 指向一个 @ref FL_U7816_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 U7816配置成功
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*/
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FL_ErrorStatus FL_U7816_Init(U7816_Type *U7816x, FL_U7816_InitTypeDef *U7816_InitStruct)
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{
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uint32_t Fclk;
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uint32_t tempClkdiv;
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/* 参数检查 */
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assert_param(IS_FL_U7816_INSTANCE(U7816x));
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assert_param(IS_FL_U7816_CLOCK_FRQUENCE(U7816_InitStruct->outputClockFrequency));
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assert_param(IS_FL_U7816_TX_PARITHERROR_AUTO_RETRY(U7816_InitStruct->txAutoRetry));
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assert_param(IS_FL_U7816_RETRY_CNT(U7816_InitStruct->retryCnt));
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assert_param(IS_FL_U7816_BLOCKGUARD(U7816_InitStruct->blockGuard));
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assert_param(IS_FL_U7816_PARITH(U7816_InitStruct->parity));
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assert_param(IS_FL_U7816_RX_GUARD(U7816_InitStruct->rxGuardTime));
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assert_param(IS_FL_U7816_ERROR_GUARD(U7816_InitStruct->errorGuardTime));
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assert_param(IS_FL_U7816_ERROR_SIGNALWIDTH(U7816_InitStruct->errorSignalWidth));
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assert_param(IS_FL_U7816_RX_AUTO_ERROR_SIG(U7816_InitStruct->rxAutoErrorSignal));
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assert_param(IS_FL_U7816_BIT_DIRECTION(U7816_InitStruct->transferOrder));
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/* 时钟使能 */
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_U7816);
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/* 卡时钟 */
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Fclk = FL_CMU_GetAPBClockFreq();
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tempClkdiv = Fclk / U7816_InitStruct->outputClockFrequency - 1;
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FL_U7816_WriteClockDivision(U7816x, tempClkdiv);
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/* 发送收到error signal后自动重发 */
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if(U7816_InitStruct->txAutoRetry == FL_ENABLE)
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{
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FL_U7816_EnableTXParityErrorAutoRetry(U7816x);
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}
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else
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{
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FL_U7816_DisableTXParityErrorAutoRetry(U7816x);
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}
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/* 发送失败重试次数 */
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FL_U7816_SetRetryCount(U7816x, U7816_InitStruct->retryCnt);
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/*插入BGT */
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if(U7816_InitStruct->blockGuard == FL_ENABLE)
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{
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FL_U7816_EnableBlockGuardTime(U7816x);
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}
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else
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{
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FL_U7816_DisableBlockGuardTime(U7816x);
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}
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/* 校验位 */
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FL_U7816_SetParity(U7816x, U7816_InitStruct->parity);
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/* 接收一次之间的保护时间单位etu */
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FL_U7816_SetRXGuardTime(U7816x, U7816_InitStruct->rxGuardTime);
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/* 错误之后的保护时间单位etu */
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FL_U7816_SetErrorGuardTime(U7816x, U7816_InitStruct->errorGuardTime);
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/* 错误信号时间 单位etu */
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FL_U7816_SetErrorSignalWidth(U7816x, U7816_InitStruct->errorSignalWidth);
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/* 接收校验错是否自动重发error signal */
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if(U7816_InitStruct->rxAutoErrorSignal == FL_ENABLE)
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{
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FL_U7816_EnableRXParityErrorAutoRetry(U7816x);
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}
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else
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{
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FL_U7816_DisableRXParityErrorAutoRetry(U7816x);
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}
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/* 传输bit方向 */
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FL_U7816_SetBitOrder(U7816x, U7816_InitStruct->transferOrder);
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/* baud */
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FL_U7816_WriteBaudRate(U7816x, U7816_InitStruct->baud);
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/* 额外保护时间单位etu */
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FL_U7816_WriteExtraGuardTime(U7816x, U7816_InitStruct->extraGuardTime);
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return FL_PASS;
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}
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/**
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* @brief 设置 U7816_InitStruct 为默认配置
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* @param U7816_InitStruct 指向需要将值设置为默认配置的结构体 @ref FL_U7816_InitTypeDef 结构体
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*
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* @retval None
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*/
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void FL_U7816_StructInit(FL_U7816_InitTypeDef *U7816_InitStruct)
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{
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U7816_InitStruct->outputClockFrequency = 4000000;
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U7816_InitStruct->txAutoRetry = FL_ENABLE;
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U7816_InitStruct->retryCnt = FL_U7816_RETRY_COUNT_1;
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U7816_InitStruct->blockGuard = FL_DISABLE;
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U7816_InitStruct->parity = FL_U7816_PARITY_EVEN;
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U7816_InitStruct->rxGuardTime = FL_U7816_RX_GUARD_TIME_2ETU;
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U7816_InitStruct->errorGuardTime = FL_U7816_ERROR_GUARD_TIME_1ETU;
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U7816_InitStruct->errorSignalWidth = FL_U7816_ERROR_SIGNAL_WIDTH_2ETU;
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U7816_InitStruct->rxAutoErrorSignal = FL_ENABLE;
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U7816_InitStruct->transferOrder = FL_U7816_BIT_ORDER_LSB_FIRST;
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U7816_InitStruct->baud = 372 - 1;
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U7816_InitStruct->extraGuardTime = 0;
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}
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/**
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* @}
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*/
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#endif /* FL_U7816_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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