376 lines
14 KiB
C
376 lines
14 KiB
C
/**
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****************************************************************************************************
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* @file fm33lg0xx_fl_uart.c
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* @author FMSH Application Team
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* @brief Src file of UART FL Module
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****************************************************************************************************
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* @attention
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*
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* Copyright (c) [2020] [Fudan Microelectronics]
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* THIS SOFTWARE is licensed under the Mulan PSL v1.
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* can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 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 UART
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* @{
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*/
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#ifdef FL_UART_DRIVER_ENABLED
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup UART_FL_Private_Macros
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* @{
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*/
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#define IS_UART_INSTANCE(INSTANCE) (((INSTANCE) == UART0)||\
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((INSTANCE) == UART1)||\
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((INSTANCE) == UART3)||\
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((INSTANCE) == UART4)||\
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((INSTANCE) == UART5))
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#define IS_FL_UART_CLKSRC(__VALUE__) (((__VALUE__) == FL_CMU_UART0_CLK_SOURCE_APBCLK)||\
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((__VALUE__) == FL_CMU_UART0_CLK_SOURCE_RCHF)||\
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((__VALUE__) == FL_CMU_UART0_CLK_SOURCE_SYSCLK)||\
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((__VALUE__) == FL_CMU_UART0_CLK_SOURCE_XTHF)||\
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((__VALUE__) == FL_CMU_UART1_CLK_SOURCE_APBCLK)||\
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((__VALUE__) == FL_CMU_UART1_CLK_SOURCE_RCHF)||\
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((__VALUE__) == FL_CMU_UART1_CLK_SOURCE_SYSCLK)||\
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((__VALUE__) == FL_CMU_UART1_CLK_SOURCE_XTHF))
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#define IS_FL_UART_DATAWIDTH(__VALUE__) (((__VALUE__) == FL_UART_DATA_WIDTH_6B)||\
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((__VALUE__) == FL_UART_DATA_WIDTH_7B)||\
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((__VALUE__) == FL_UART_DATA_WIDTH_8B)||\
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((__VALUE__) == FL_UART_DATA_WIDTH_9B))
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#define IS_FL_UART_STOPBITS(__VALUE__) (((__VALUE__) == FL_UART_STOP_BIT_WIDTH_1B)||\
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((__VALUE__) == FL_UART_STOP_BIT_WIDTH_2B))
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#define IS_FL_UART_PARITY(__VALUE__) (((__VALUE__) == FL_UART_PARITY_NONE)||\
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((__VALUE__) == FL_UART_PARITY_EVEN)||\
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((__VALUE__) == FL_UART_PARITY_ODD))
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#define IS_FL_UART_DIRECTION(__VALUE__) (((__VALUE__) == FL_UART_DIRECTION_NONE)||\
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((__VALUE__) == FL_UART_DIRECTION_RX)||\
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((__VALUE__) == FL_UART_DIRECTION_TX)||\
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((__VALUE__) == FL_UART_DIRECTION_TX_RX))
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#define IS_FL_UART_INFRA_MODULATION(__VALUE__) (((__VALUE__) == FL_DISABLE)||\
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((__VALUE__) == FL_ENABLE))
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#define IS_FL_UART_INFRARED_POLARITY(__VALUE__) (((__VALUE__) == FL_UART_INFRARED_POLARITY_NORMAL)||\
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((__VALUE__) == FL_UART_INFRARED_POLARITY_INVERT))
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#define IS_FL_UART_INFRARED_MODULATION_DUTY(__VALUE__) (((__VALUE__) <= 100))
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/**
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* @}
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*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup UART_FL_EF_Init
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* @{
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*/
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/**
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* @brief 复位UART 外设寄存器值为复位值
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* @param 外设入口地址
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* @retval 返回错误状态，可能值:
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* -FL_PASS 外设寄存器值恢复复位值
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* -FL_FAIL 复位未成功
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*/
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FL_ErrorStatus FL_UART_DeInit(UART_Type *UARTx)
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{
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FL_ErrorStatus status = FL_PASS;
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/* 参数入口合法性 */
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assert_param(IS_UART_INSTANCE(UARTx));
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/* 外设复位使能 */
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FL_RMU_EnablePeripheralReset(RMU);
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if(UARTx == UART0)
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{
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/*复位UART*/
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART0);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART0);
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/* 外设总线时钟关闭 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART0);
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/* 外设工作时钟关闭 */
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FL_CMU_DisableGroup3OperationClock(FL_CMU_GROUP3_OPCLK_UART0);
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}
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else
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if(UARTx == UART1)
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{
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/*复位UART*/
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART1);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART1);
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/* 外设总线时钟关闭 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART1);
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/* 外设工作时钟关闭 */
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FL_CMU_DisableGroup3OperationClock(FL_CMU_GROUP3_OPCLK_UART1);
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}
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else
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if(UARTx == UART3)
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{
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/*复位UART*/
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART3);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART3);
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/* UART3、4、5为单时钟，关闭总线时钟 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART3);
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}
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else
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if(UARTx == UART4)
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{
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/*复位UART*/
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART4);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART4);
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/* 总线、工作时钟关闭 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART4);
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}
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else
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if(UARTx == UART5)
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{
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/*复位UART*/
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FL_RMU_EnableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART5);
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FL_RMU_DisableResetAPBPeripheral(RMU, FL_RMU_RSTAPB_UART5);
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/* 总线（工作）时钟关闭 */
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FL_CMU_DisableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART5);
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}
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else
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{
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status = FL_FAIL;
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}
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/* 锁定外设复位功能 */
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FL_RMU_DisablePeripheralReset(RMU);
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return (status);
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}
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/**
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* @brief 根据需要配置UART
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*
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* @param UARTx 外设入口地址
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* @param UART_InitStruct指向一个FL_UART_InitTypeDef类型的结构体,它包含外设UART的配置信息
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*
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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 UART配置成功
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*/
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FL_ErrorStatus FL_UART_Init(UART_Type *UARTx, FL_UART_InitTypeDef *initStruct)
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{
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FL_ErrorStatus status = FL_FAIL;
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uint32_t Fclk = 0, BaudRate = 0;
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/* 参数合法性检查 */
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assert_param(IS_UART_INSTANCE(UARTx));
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assert_param(IS_FL_UART_CLKSRC(initStruct->clockSrc));
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assert_param(IS_FL_UART_DATAWIDTH(initStruct->dataWidth));
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assert_param(IS_FL_UART_PARITY(initStruct->parity));
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assert_param(IS_FL_UART_STOPBITS(initStruct->stopBits));
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assert_param(IS_FL_UART_DIRECTION(initStruct->transferDirection));
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if(UARTx == UART0)
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{
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/*时钟源选择*/
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FL_CMU_SetUART0ClockSource(initStruct->clockSrc);
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/* 根据不同的时钟源计算baudrate 寄存器值,并配置 */
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switch(initStruct->clockSrc)
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{
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case FL_CMU_UART0_CLK_SOURCE_APBCLK:
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Fclk = FL_CMU_GetAPBClockFreq();
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break;
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case FL_CMU_UART0_CLK_SOURCE_RCHF:
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Fclk = FL_CMU_GetRCHFClockFreq();
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break;
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case FL_CMU_UART0_CLK_SOURCE_SYSCLK:
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Fclk = FL_CMU_GetSystemClockFreq();
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break;
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case FL_CMU_UART0_CLK_SOURCE_XTHF:
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Fclk = XTHFClock;
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break;
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default:
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Fclk = FL_CMU_GetAPBClockFreq();
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break;
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}
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BaudRate = Fclk / initStruct->baudRate - 1;
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}
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if(UARTx == UART1)
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{
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/*时钟源选择*/
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FL_CMU_SetUART1ClockSource(initStruct->clockSrc);
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/* 根据不同的时钟源计算baudrate 寄存器值,并配置 */
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switch(initStruct->clockSrc)
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{
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case FL_CMU_UART1_CLK_SOURCE_APBCLK:
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Fclk = FL_CMU_GetAPBClockFreq();
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break;
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case FL_CMU_UART1_CLK_SOURCE_RCHF:
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Fclk = FL_CMU_GetRCHFClockFreq();
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break;
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case FL_CMU_UART1_CLK_SOURCE_SYSCLK :
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Fclk = FL_CMU_GetSystemClockFreq();
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break;
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case FL_CMU_UART1_CLK_SOURCE_XTHF:
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Fclk = XTHFClock;
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break;
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default:
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Fclk = FL_CMU_GetAPBClockFreq();
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break;
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}
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BaudRate = Fclk / initStruct->baudRate - 1;
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}
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if(UARTx == UART0)
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{
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART0);
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FL_CMU_EnableGroup3OperationClock(FL_CMU_GROUP3_OPCLK_UART0);
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}
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else
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if(UARTx == UART1)
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{
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART1);
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FL_CMU_EnableGroup3OperationClock(FL_CMU_GROUP3_OPCLK_UART1);
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}
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else
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if(UARTx == UART3)
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{
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART3);
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Fclk = FL_CMU_GetAPBClockFreq();
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BaudRate = Fclk / initStruct->baudRate - 1;
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}
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else
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if(UARTx == UART4)
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{
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART4);
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Fclk = FL_CMU_GetAPBClockFreq();
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BaudRate = Fclk / initStruct->baudRate - 1;
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}
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else
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if(UARTx == UART5)
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{
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UART5);
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Fclk = FL_CMU_GetAPBClockFreq();
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BaudRate = Fclk / initStruct->baudRate - 1;
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}
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/*发送接收控制*/
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if(initStruct->transferDirection & FL_UART_DIRECTION_TX)
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{
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FL_UART_EnableTX(UARTx);
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}
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if(initStruct->transferDirection & FL_UART_DIRECTION_RX)
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{
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FL_UART_EnableRX(UARTx);
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}
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/*配置波特率*/
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FL_UART_WriteBaudRate(UARTx, BaudRate);
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/*配置停止位长度*/
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FL_UART_SetStopBitsWidth(UARTx, initStruct->stopBits);
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/*数据长度*/
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FL_UART_SetDataWidth(UARTx, initStruct->dataWidth);
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/*配置奇偶校验*/
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FL_UART_SetParity(UARTx, initStruct->parity);
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status = FL_PASS;
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return status;
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}
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/**
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* @brief 根据需要配置红外调制寄存器
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*
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* @param UARTx 外设入口地址
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*
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* @param initStruct指向FL_UART_InitTypeDef类型的结构体,包含UART外设信息
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*
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* @retval ErrorStatus枚举值
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* -FL_FAIL 配置过程出现错误
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* -FL_PASS UART配置成功
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*/
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FL_ErrorStatus FL_UART_InfraRed_Init(UART_Type *UARTx, FL_UART_InfraRed_InitTypeDef *initStruct)
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{
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FL_ErrorStatus status = FL_FAIL;
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uint32_t tempTZBRG = 0, tempTH = 0;
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/* 参数合法性检查 */
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assert_param(IS_UART_INSTANCE(UARTx));
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assert_param(IS_FL_UART_INFRARED_POLARITY(initStruct->polarity));
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assert_param(IS_FL_UART_INFRARED_MODULATION_DUTY(initStruct->modulationDuty));
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/*红外发送总线时钟使能*/
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FL_CMU_EnableGroup3BusClock(FL_CMU_GROUP3_BUSCLK_UARTIR);
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/*红外发送使能*/
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FL_UART_EnableIRModulation(UARTx);
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/*红外调制极性*/
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FL_UART_SetIRPolarity(UART, initStruct->polarity);
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/*红外调制频率*/
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tempTZBRG = (uint32_t)((FL_CMU_GetAPBClockFreq() * 1.0) / initStruct->modulationFrequency - 1);
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/* 调制占空比 */
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if((tempTZBRG >> 4) != 0)
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{
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tempTH = (uint32_t)(((float)initStruct->modulationDuty / 100.0f) * ((float)(tempTZBRG + 1) / (float)(tempTZBRG >> 4)) + 0.5f);
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}
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else
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{
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tempTH = (uint32_t)(((float)initStruct->modulationDuty / 100.0f) * (float)(tempTZBRG + 1) + 0.5f);
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}
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/* 占空比限位到小于95%，否则结果会有问题 */
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tempTH = ((float)((tempTZBRG >> 4) * tempTH) / (float)(tempTZBRG + 1)) < 0.95f ? tempTH : tempTH - 1;
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/* 占空比和调制频率配置 */
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FL_UART_WriteIRModulationDuty(UART, tempTH);
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FL_UART_WriteIRModulationFrequency(UART, tempTZBRG);
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status = FL_PASS;
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return status;
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}
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/**
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* @brief UART_InitStruct 为默认配置
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* @param UART_InitStruct 指向需要将值设置为默认配置 的结构体@ref FL_UART_InitTypeDef structure 结构体
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*
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* @retval None
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*/
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void FL_UART_InfraRed_StructInit(FL_UART_InfraRed_InitTypeDef *initStruct)
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{
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initStruct->polarity = FL_UART_INFRARED_POLARITY_NORMAL;
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initStruct->modulationDuty = 50;
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initStruct->modulationFrequency = 38000;
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}
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/**
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* @brief UART_InitStruct 为默认配置
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* @param UART_InitStruct 指向需要将值设置为默认配置 的结构体@ref FL_UART_InitTypeDef structure 结构体
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* 结构体
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* @retval None
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*/
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void FL_UART_StructInit(FL_UART_InitTypeDef *initStruct)
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{
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initStruct->baudRate = 115200;
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initStruct->dataWidth = FL_UART_DATA_WIDTH_8B;
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initStruct->stopBits = FL_UART_STOP_BIT_WIDTH_1B;
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initStruct->parity = FL_UART_PARITY_EVEN ;
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initStruct->transferDirection = FL_UART_DIRECTION_TX_RX;
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initStruct->clockSrc = 0;
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}
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/**
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* @}
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*/
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#endif /* FL_UART_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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