/** **************************************************************************************************** * @file fm33lg0xx_fl_cmu.c * @author FMSH Application Team * @brief Src file of CMU FL Module **************************************************************************************************** * @attention * * Copyright (c) [2021] [Fudan Microelectronics] * THIS SOFTWARE is licensed under Mulan PSL v2. * You can use this software according to the terms and conditions of the Mulan PSL v2. * You may obtain a copy of Mulan PSL v2 at: * http://license.coscl.org.cn/MulanPSL2 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. * See the Mulan PSL v2 for more details. * **************************************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "fm33lg0xx_fl.h" /** @addtogroup FM33LG0XX_FL_Driver * @{ */ /** @addtogroup U7816 * @{ */ #ifdef FL_U7816_DRIVER_ENABLED /* Private macros ------------------------------------------------------------*/ //配置参数： #define IS_FL_U7816_INSTANCE(INTANCE) ((INTANCE) == U7816) #define IS_FL_U7816_CLOCK_FRQUENCE(__VALUE__) (((__VALUE__) >=1000000)&&\ ((__VALUE__) <= 5000000)) #define IS_FL_U7816_TX_PARITHERROR_AUTO_RETRY(__VALUE__) (((__VALUE__) == FL_DISABLE)||\ ((__VALUE__) == FL_ENABLE)) #define IS_FL_U7816_RETRY_CNT(__VALUE__) (((__VALUE__) == FL_U7816_RETRY_COUNT_1)||\ ((__VALUE__) == FL_U7816_RETRY_COUNT_3)) #define IS_FL_U7816_BLOCKGUARD(__VALUE__) (((__VALUE__) == FL_ENABLE)||\ ((__VALUE__) == FL_DISABLE)) #define IS_FL_U7816_PARITH(__VALUE__) (((__VALUE__) == FL_U7816_PARITY_EVEN)||\ ((__VALUE__) == FL_U7816_PARITY_ODD )||\ ((__VALUE__) == FL_U7816_PARITY_ALWAYS_1)||\ ((__VALUE__) == FL_U7816_PARITY_NONE)) #define IS_FL_U7816_RX_GUARD(__VALUE__) (((__VALUE__) == FL_U7816_RX_GUARD_TIME_2ETU)||\ ((__VALUE__) == FL_U7816_RX_GUARD_TIME_1ETU)) #define IS_FL_U7816_ERROR_GUARD(__VALUE__) (((__VALUE__) == FL_U7816_ERROR_GUARD_TIME_2ETU)||\ ((__VALUE__) == FL_U7816_ERROR_GUARD_TIME_1ETU)) #define IS_FL_U7816_ERROR_SIGNALWIDTH(__VALUE__) (((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_2ETU)||\ ((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_1P5ETU)||\ ((__VALUE__) == FL_U7816_ERROR_SIGNAL_WIDTH_1ETU)) #define IS_FL_U7816_RX_AUTO_ERROR_SIG(__VALUE__) (((__VALUE__) == FL_DISABLE)||\ ((__VALUE__) == FL_ENABLE)) #define IS_FL_U7816_BIT_DIRECTION(__VALUE__) (((__VALUE__) == FL_U7816_BIT_ORDER_LSB_FIRST)||\ ((__VALUE__) == FL_U7816_BIT_ORDER_MSB_FIRST)) /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @addtogroup U7816_FL_EF_Init * @{ */ /** * @brief 复位对应U7816寄存器. * @param U7816x * @retval ErrorStatus枚举值: * -FL_PASS 外设寄存器值恢复复位值 * -FL_FAIL 未成功执行 */ FL_ErrorStatus FL_U7816_DeInit(U7816_Type *U7816x) { assert_param(IS_FL_U7816_INSTANCE(U7816x)); /* 使能外设复位 */ FL_RMU_EnablePeripheralReset(RMU); /* 复位U7816外设寄存器 */ FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_U7816); FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_U7816); /* 关闭外设总线时钟与工作时钟 */ FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_U7816); /* 锁定外设复位 */ FL_RMU_DisablePeripheralReset(RMU); return FL_PASS; } /** * @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 * @param U7816x U7816x * @param U7816_InitStruct 指向一个 @ref FL_U7816_InitTypeDef 结构体 * 其中包含了外设的相关配置信息. * @retval ErrorStatus枚举值 * -FL_FAIL 配置过程发生错误 * -FL_PASS U7816配置成功 */ FL_ErrorStatus FL_U7816_Init(U7816_Type *U7816x, FL_U7816_InitTypeDef *U7816_InitStruct) { uint32_t Fclk; uint32_t tempClkdiv; /* 参数检查 */ assert_param(IS_FL_U7816_INSTANCE(U7816x)); assert_param(IS_FL_U7816_CLOCK_FRQUENCE(U7816_InitStruct->outputClockFrequency)); assert_param(IS_FL_U7816_TX_PARITHERROR_AUTO_RETRY(U7816_InitStruct->txAutoRetry)); assert_param(IS_FL_U7816_RETRY_CNT(U7816_InitStruct->retryCnt)); assert_param(IS_FL_U7816_BLOCKGUARD(U7816_InitStruct->blockGuard)); assert_param(IS_FL_U7816_PARITH(U7816_InitStruct->parity)); assert_param(IS_FL_U7816_RX_GUARD(U7816_InitStruct->rxGuardTime)); assert_param(IS_FL_U7816_ERROR_GUARD(U7816_InitStruct->errorGuardTime)); assert_param(IS_FL_U7816_ERROR_SIGNALWIDTH(U7816_InitStruct->errorSignalWidth)); assert_param(IS_FL_U7816_RX_AUTO_ERROR_SIG(U7816_InitStruct->rxAutoErrorSignal)); assert_param(IS_FL_U7816_BIT_DIRECTION(U7816_InitStruct->transferOrder)); /* 时钟使能 */ FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_U7816); /* 卡时钟 */ Fclk = FL_CMU_GetAPBClockFreq(); tempClkdiv = Fclk / U7816_InitStruct->outputClockFrequency - 1; FL_U7816_WriteClockDivision(U7816x, tempClkdiv); /* 发送收到error signal后自动重发 */ if(U7816_InitStruct->txAutoRetry == FL_ENABLE) { FL_U7816_EnableTXParityErrorAutoRetry(U7816x); } else { FL_U7816_DisableTXParityErrorAutoRetry(U7816x); } /* 发送失败重试次数 */ FL_U7816_SetRetryCount(U7816x, U7816_InitStruct->retryCnt); /*插入BGT */ if(U7816_InitStruct->blockGuard == FL_ENABLE) { FL_U7816_EnableBlockGuardTime(U7816x); } else { FL_U7816_DisableBlockGuardTime(U7816x); } /* 校验位 */ FL_U7816_SetParity(U7816x, U7816_InitStruct->parity); /* 接收一次之间的保护时间单位etu */ FL_U7816_SetRXGuardTime(U7816x, U7816_InitStruct->rxGuardTime); /* 错误之后的保护时间单位etu */ FL_U7816_SetErrorGuardTime(U7816x, U7816_InitStruct->errorGuardTime); /* 错误信号时间 单位etu */ FL_U7816_SetErrorSignalWidth(U7816x, U7816_InitStruct->errorSignalWidth); /* 接收校验错是否自动重发error signal */ if(U7816_InitStruct->rxAutoErrorSignal == FL_ENABLE) { FL_U7816_EnableRXParityErrorAutoRetry(U7816x); } else { FL_U7816_DisableRXParityErrorAutoRetry(U7816x); } /* 传输bit方向 */ FL_U7816_SetBitOrder(U7816x, U7816_InitStruct->transferOrder); /* baud */ FL_U7816_WriteBaudRate(U7816x, U7816_InitStruct->baud); /* 额外保护时间单位etu */ FL_U7816_WriteExtraGuardTime(U7816x, U7816_InitStruct->extraGuardTime); return FL_PASS; } /** * @brief 设置 U7816_InitStruct 为默认配置 * @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 * * @retval None */ void FL_U7816_StructInit(FL_U7816_InitTypeDef *U7816_InitStruct) { U7816_InitStruct->outputClockFrequency = 4000000; U7816_InitStruct->txAutoRetry = FL_ENABLE; U7816_InitStruct->retryCnt = FL_U7816_RETRY_COUNT_1; U7816_InitStruct->blockGuard = FL_DISABLE; U7816_InitStruct->parity = FL_U7816_PARITY_EVEN; U7816_InitStruct->rxGuardTime = FL_U7816_RX_GUARD_TIME_2ETU; U7816_InitStruct->errorGuardTime = FL_U7816_ERROR_GUARD_TIME_1ETU; U7816_InitStruct->errorSignalWidth = FL_U7816_ERROR_SIGNAL_WIDTH_2ETU; U7816_InitStruct->rxAutoErrorSignal = FL_ENABLE; U7816_InitStruct->transferOrder = FL_U7816_BIT_ORDER_LSB_FIRST; U7816_InitStruct->baud = 372 - 1; U7816_InitStruct->extraGuardTime = 0; } /** * @} */ #endif /* FL_U7816_DRIVER_ENABLED */ /** * @} */ /** * @} */ /********************** (C) COPYRIGHT Fudan Microelectronics **** END OF FILE ***********************/