| /**************************************************************************//** | |
| * @file uart.c | |
| * @version V3.00 | |
| * @brief M2351 series UART Interface Controller (UART) driver source file | |
| * | |
| * @note | |
| * Copyright (C) 2016 Nuvoton Technology Corp. All rights reserved. | |
| *****************************************************************************/ | |
| #include <stdio.h> | |
| #include "NuMicro.h" | |
| /** @addtogroup Standard_Driver Standard Driver | |
| @{ | |
| */ | |
| /** @addtogroup UART_Driver UART Driver | |
| @{ | |
| */ | |
| /** @addtogroup UART_EXPORTED_FUNCTIONS UART Exported Functions | |
| @{ | |
| */ | |
| /** | |
| * @brief Clear UART specified interrupt flag | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32InterruptFlag The specified interrupt of UART module. | |
| * - \ref UART_INTSTS_LININT_Msk : LIN Bus interrupt | |
| * - \ref UART_INTSTS_WKINT_Msk : Wake-up interrupt | |
| * - \ref UART_INTSTS_BUFERRINT_Msk : Buffer Error interrupt | |
| * - \ref UART_INTSTS_MODEMINT_Msk : MODEM Status Interrupt | |
| * - \ref UART_INTSTS_RLSINT_Msk : Receive Line Status interrupt | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to clear UART specified interrupt flag. | |
| */ | |
| void UART_ClearIntFlag(UART_T* uart, uint32_t u32InterruptFlag) | |
| { | |
| if(u32InterruptFlag & UART_INTSTS_RLSINT_Msk) /* Clear Receive Line Status Interrupt */ | |
| { | |
| uart->FIFOSTS = UART_FIFOSTS_BIF_Msk | UART_FIFOSTS_FEF_Msk | UART_FIFOSTS_FEF_Msk | UART_FIFOSTS_ADDRDETF_Msk; | |
| } | |
| if(u32InterruptFlag & UART_INTSTS_MODEMINT_Msk) /* Clear MODEM Status Interrupt */ | |
| { | |
| uart->MODEMSTS |= UART_MODEMSTS_CTSDETF_Msk; | |
| } | |
| if(u32InterruptFlag & UART_INTSTS_BUFERRINT_Msk) /* Clear Buffer Error Interrupt */ | |
| { | |
| uart->FIFOSTS = UART_FIFOSTS_RXOVIF_Msk | UART_FIFOSTS_TXOVIF_Msk; | |
| } | |
| if(u32InterruptFlag & UART_INTSTS_WKINT_Msk) /* Clear Wake-up Interrupt */ | |
| { | |
| uart->WKSTS = UART_WKSTS_CTSWKF_Msk | UART_WKSTS_DATWKF_Msk | | |
| UART_WKSTS_RFRTWKF_Msk | UART_WKSTS_RS485WKF_Msk | | |
| UART_WKSTS_TOUTWKF_Msk; | |
| } | |
| if(u32InterruptFlag & UART_INTSTS_LININT_Msk) /* Clear LIN Bus Interrupt */ | |
| { | |
| uart->INTSTS = UART_INTSTS_LINIF_Msk; | |
| uart->LINSTS = UART_LINSTS_BITEF_Msk | UART_LINSTS_BRKDETF_Msk | | |
| UART_LINSTS_SLVSYNCF_Msk | UART_LINSTS_SLVIDPEF_Msk | | |
| UART_LINSTS_SLVHEF_Msk | UART_LINSTS_SLVHDETF_Msk ; | |
| } | |
| } | |
| /** | |
| * @brief Disable UART interrupt | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to disable UART interrupt. | |
| */ | |
| void UART_Close(UART_T* uart) | |
| { | |
| uart->INTEN = 0ul; | |
| } | |
| /** | |
| * @brief Disable UART auto flow control function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to disable UART auto flow control. | |
| */ | |
| void UART_DisableFlowCtrl(UART_T* uart) | |
| { | |
| uart->INTEN &= ~(UART_INTEN_ATORTSEN_Msk | UART_INTEN_ATOCTSEN_Msk); | |
| } | |
| /** | |
| * @brief Disable UART specified interrupt | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32InterruptFlag The specified interrupt of UART module. | |
| * - \ref UART_INTEN_TXENDIEN_Msk : Transmitter Empty Interrupt | |
| * - \ref UART_INTEN_ABRIEN_Msk : Auto-baud Rate Interrupt | |
| * - \ref UART_INTEN_LINIEN_Msk : Lin Bus interrupt | |
| * - \ref UART_INTEN_WKIEN_Msk : Wake-up interrupt | |
| * - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt | |
| * - \ref UART_INTEN_RXTOIEN_Msk : Rx Time-out Interrupt | |
| * - \ref UART_INTEN_MODEMIEN_Msk : MODEM Status Interrupt | |
| * - \ref UART_INTEN_RLSIEN_Msk : Receive Line Status Interrupt | |
| * - \ref UART_INTEN_THREIEN_Msk : Transmit Holding Register Empty Interrupt | |
| * - \ref UART_INTEN_RDAIEN_Msk : Receive Data Available Interrupt | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to disable UART specified interrupt and disable NVIC UART IRQ. | |
| */ | |
| void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag) | |
| { | |
| /* Disable UART specified interrupt */ | |
| UART_DISABLE_INT(uart, u32InterruptFlag); | |
| /* Disable NVIC UART IRQ */ | |
| switch((uint32_t)uart) | |
| { | |
| case UART0_BASE: | |
| case UART0_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART0_IRQn); | |
| break; | |
| case UART1_BASE: | |
| case UART1_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART1_IRQn); | |
| break; | |
| case UART2_BASE: | |
| case UART2_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART2_IRQn); | |
| break; | |
| case UART3_BASE: | |
| case UART3_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART3_IRQn); | |
| break; | |
| case UART4_BASE: | |
| case UART4_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART4_IRQn); | |
| break; | |
| case UART5_BASE: | |
| case UART5_BASE+NS_OFFSET: | |
| NVIC_DisableIRQ(UART5_IRQn); | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| /** | |
| * @brief Enable UART auto flow control function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to Enable UART auto flow control. | |
| */ | |
| /** | |
| * @brief Enable UART auto flow control function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to Enable UART auto flow control. | |
| */ | |
| void UART_EnableFlowCtrl(UART_T* uart) | |
| { | |
| /* Set RTS pin output is low level active */ | |
| uart->MODEM |= UART_MODEM_RTSACTLV_Msk; | |
| /* Set CTS pin input is low level active */ | |
| uart->MODEMSTS |= UART_MODEMSTS_CTSACTLV_Msk; | |
| /* Set RTS and CTS auto flow control enable */ | |
| uart->INTEN |= UART_INTEN_ATORTSEN_Msk | UART_INTEN_ATOCTSEN_Msk; | |
| } | |
| /** | |
| * @brief Enable UART specified interrupt | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32InterruptFlag The specified interrupt of UART module: | |
| * - \ref UART_INTEN_TXENDIEN_Msk : Transmitter Empty Interrupt | |
| * - \ref UART_INTEN_ABRIEN_Msk : Auto-baud Rate Interrupt | |
| * - \ref UART_INTEN_LINIEN_Msk : Lin Bus interrupt | |
| * - \ref UART_INTEN_WKIEN_Msk : Wake-up interrupt | |
| * - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt | |
| * - \ref UART_INTEN_RXTOIEN_Msk : Rx Time-out Interrupt | |
| * - \ref UART_INTEN_MODEMIEN_Msk : MODEM Status Interrupt | |
| * - \ref UART_INTEN_RLSIEN_Msk : Receive Line Status Interrupt | |
| * - \ref UART_INTEN_THREIEN_Msk : Transmit Holding Register Empty Interrupt | |
| * - \ref UART_INTEN_RDAIEN_Msk : Receive Data Available Interrupt | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to enable UART specified interrupt and enable NVIC UART IRQ. | |
| */ | |
| void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag) | |
| { | |
| /* Enable UART specified interrupt */ | |
| UART_ENABLE_INT(uart, u32InterruptFlag); | |
| /* Enable NVIC UART IRQ */ | |
| switch((uint32_t)uart) | |
| { | |
| case UART0_BASE: | |
| case UART0_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART0_IRQn); | |
| break; | |
| case UART1_BASE: | |
| case UART1_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART1_IRQn); | |
| break; | |
| case UART2_BASE: | |
| case UART2_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART2_IRQn); | |
| break; | |
| case UART3_BASE: | |
| case UART3_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART3_IRQn); | |
| break; | |
| case UART4_BASE: | |
| case UART4_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART4_IRQn); | |
| break; | |
| case UART5_BASE: | |
| case UART5_BASE+NS_OFFSET: | |
| NVIC_EnableIRQ(UART5_IRQn); | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| /** | |
| * @brief Open and set UART function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32baudrate The baudrate of UART module. | |
| * | |
| * @return None | |
| * | |
| * @details This function use to enable UART function and set baud-rate. | |
| */ | |
| void UART_Open(UART_T* uart, uint32_t u32baudrate) | |
| { | |
| uint32_t u32UartClkSrcSel, u32UartClkDivNum; | |
| uint32_t au32ClkTbl[4] = {__HXT, 0ul, __LXT, __HIRC}; | |
| uint32_t u32BaudDiv = 0ul; | |
| /* Get UART clock source selection and UART clock divider number */ | |
| switch((uint32_t)uart) | |
| { | |
| case UART0_BASE: | |
| case UART0_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART0_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART0_MODULE); | |
| break; | |
| case UART1_BASE: | |
| case UART1_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART1_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART1_MODULE); | |
| break; | |
| case UART2_BASE: | |
| case UART2_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART2_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART2_MODULE); | |
| break; | |
| case UART3_BASE: | |
| case UART3_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART3_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART3_MODULE); | |
| break; | |
| case UART4_BASE: | |
| case UART4_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART4_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART4_MODULE); | |
| break; | |
| case UART5_BASE: | |
| case UART5_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART5_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART5_MODULE); | |
| break; | |
| default: | |
| break; | |
| } | |
| /* Select UART function */ | |
| uart->FUNCSEL = UART_FUNCSEL_UART; | |
| /* Set UART line configuration */ | |
| uart->LINE = UART_WORD_LEN_8 | UART_PARITY_NONE | UART_STOP_BIT_1; | |
| /* Set UART Rx and RTS trigger level */ | |
| uart->FIFO &= ~(UART_FIFO_RFITL_Msk | UART_FIFO_RTSTRGLV_Msk); | |
| /* Get PLL clock frequency if UART clock source selection is PLL */ | |
| if(u32UartClkSrcSel == 1ul) | |
| { | |
| au32ClkTbl[u32UartClkSrcSel] = CLK_GetPLLClockFreq(); | |
| } | |
| /* Set UART baud rate */ | |
| if(u32baudrate != 0ul) | |
| { | |
| u32BaudDiv = UART_BAUD_MODE2_DIVIDER((au32ClkTbl[u32UartClkSrcSel]) / (u32UartClkDivNum + 1ul), u32baudrate); | |
| if(u32BaudDiv > 0xFFFFul) | |
| { | |
| uart->BAUD = (UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER((au32ClkTbl[u32UartClkSrcSel]) / (u32UartClkDivNum + 1ul), u32baudrate)); | |
| } | |
| else | |
| { | |
| uart->BAUD = (UART_BAUD_MODE2 | u32BaudDiv); | |
| } | |
| } | |
| } | |
| /** | |
| * @brief Read UART data | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] pu8RxBuf The buffer to receive the data of receive FIFO. | |
| * @param[in] u32ReadBytes The the read bytes number of data. | |
| * | |
| * @return u32Count Receive byte count | |
| * | |
| * @details The function is used to read Rx data from RX FIFO and the data will be stored in pu8RxBuf. | |
| */ | |
| uint32_t UART_Read(UART_T* uart, uint8_t pu8RxBuf[], uint32_t u32ReadBytes) | |
| { | |
| uint32_t u32Count, u32delayno; | |
| uint32_t u32Exit = 0ul; | |
| for(u32Count = 0ul; u32Count < u32ReadBytes; u32Count++) | |
| { | |
| u32delayno = 0ul; | |
| while(uart->FIFOSTS & UART_FIFOSTS_RXEMPTY_Msk) /* Check RX empty => failed */ | |
| { | |
| u32delayno++; | |
| if(u32delayno >= 0x40000000ul) | |
| { | |
| u32Exit = 1ul; | |
| break; | |
| } | |
| else | |
| { | |
| } | |
| } | |
| if(u32Exit == 1ul) | |
| { | |
| break; | |
| } | |
| else | |
| { | |
| pu8RxBuf[u32Count] = (uint8_t)uart->DAT; /* Get Data from UART RX */ | |
| } | |
| } | |
| return u32Count; | |
| } | |
| /** | |
| * @brief Set UART line configuration | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32baudrate The register value of baudrate of UART module. | |
| * If u32baudrate = 0, UART baudrate will not change. | |
| * @param[in] u32data_width The data length of UART module. | |
| * - \ref UART_WORD_LEN_5 | |
| * - \ref UART_WORD_LEN_6 | |
| * - \ref UART_WORD_LEN_7 | |
| * - \ref UART_WORD_LEN_8 | |
| * @param[in] u32parity The parity setting (none/odd/even/mark/space) of UART module. | |
| * - \ref UART_PARITY_NONE | |
| * - \ref UART_PARITY_ODD | |
| * - \ref UART_PARITY_EVEN | |
| * - \ref UART_PARITY_MARK | |
| * - \ref UART_PARITY_SPACE | |
| * @param[in] u32stop_bits The stop bit length (1/1.5/2 bit) of UART module. | |
| * - \ref UART_STOP_BIT_1 | |
| * - \ref UART_STOP_BIT_1_5 | |
| * - \ref UART_STOP_BIT_2 | |
| * | |
| * @return None | |
| * | |
| * @details This function use to config UART line setting. | |
| */ | |
| void UART_SetLineConfig(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits) | |
| { | |
| uint32_t u32UartClkSrcSel, u32UartClkDivNum; | |
| uint32_t au32ClkTbl[4] = {__HXT, 0ul, __LXT, __HIRC}; | |
| uint32_t u32BaudDiv = 0ul; | |
| /* Get UART clock source selection and UART clock divider number */ | |
| switch((uint32_t)uart) | |
| { | |
| case UART0_BASE: | |
| case UART0_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART0_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART0_MODULE); | |
| break; | |
| case UART1_BASE: | |
| case UART1_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART1_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART1_MODULE); | |
| break; | |
| case UART2_BASE: | |
| case UART2_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART2_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART2_MODULE); | |
| break; | |
| case UART3_BASE: | |
| case UART3_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART3_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART3_MODULE); | |
| break; | |
| case UART4_BASE: | |
| case UART4_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART4_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART4_MODULE); | |
| break; | |
| case UART5_BASE: | |
| case UART5_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART5_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART5_MODULE); | |
| break; | |
| default: | |
| break; | |
| } | |
| /* Get PLL clock frequency if UART clock source selection is PLL */ | |
| if(u32UartClkSrcSel == 1ul) | |
| { | |
| au32ClkTbl[u32UartClkSrcSel] = CLK_GetPLLClockFreq(); | |
| } | |
| /* Set UART baud rate */ | |
| if(u32baudrate != 0ul) | |
| { | |
| u32BaudDiv = UART_BAUD_MODE2_DIVIDER((au32ClkTbl[u32UartClkSrcSel]) / (u32UartClkDivNum + 1ul), u32baudrate); | |
| if(u32BaudDiv > 0xFFFFul) | |
| { | |
| uart->BAUD = (UART_BAUD_MODE0 | UART_BAUD_MODE0_DIVIDER((au32ClkTbl[u32UartClkSrcSel]) / (u32UartClkDivNum + 1ul), u32baudrate)); | |
| } | |
| else | |
| { | |
| uart->BAUD = (UART_BAUD_MODE2 | u32BaudDiv); | |
| } | |
| } | |
| /* Set UART line configuration */ | |
| uart->LINE = u32data_width | u32parity | u32stop_bits; | |
| } | |
| /** | |
| * @brief Set Rx timeout count | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32TOC Rx timeout counter. | |
| * | |
| * @return None | |
| * | |
| * @details This function use to set Rx timeout count. | |
| */ | |
| void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC) | |
| { | |
| /* Set time-out interrupt comparator */ | |
| uart->TOUT = (uart->TOUT & ~UART_TOUT_TOIC_Msk) | (u32TOC); | |
| /* Set time-out counter enable */ | |
| uart->INTEN |= UART_INTEN_TOCNTEN_Msk; | |
| } | |
| /** | |
| * @brief Select and configure IrDA function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32Buadrate The baudrate of UART module. | |
| * @param[in] u32Direction The direction of UART module in IrDA mode: | |
| * - \ref UART_IRDA_TXEN | |
| * - \ref UART_IRDA_RXEN | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to configure IrDA relative settings. It consists of TX or RX mode and baudrate. | |
| */ | |
| void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction) | |
| { | |
| uint32_t u32UartClkSrcSel, u32UartClkDivNum; | |
| uint32_t au32ClkTbl[4] = {__HXT, 0ul, __LXT, __HIRC}; | |
| uint32_t u32BaudDiv; | |
| /* Select IrDA function mode */ | |
| uart->FUNCSEL = UART_FUNCSEL_IrDA; | |
| /* Get UART clock source selection and UART clock divider number */ | |
| switch((uint32_t)uart) | |
| { | |
| case UART0_BASE: | |
| case UART0_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART0_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART0_MODULE); | |
| break; | |
| case UART1_BASE: | |
| case UART1_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART1_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART1_MODULE); | |
| break; | |
| case UART2_BASE: | |
| case UART2_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART2_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART2_MODULE); | |
| break; | |
| case UART3_BASE: | |
| case UART3_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART3_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART3_MODULE); | |
| break; | |
| case UART4_BASE: | |
| case UART4_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART4_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART4_MODULE); | |
| break; | |
| case UART5_BASE: | |
| case UART5_BASE+NS_OFFSET: | |
| u32UartClkSrcSel = CLK_GetModuleClockSource(UART5_MODULE); | |
| u32UartClkDivNum = CLK_GetModuleClockDivider(UART5_MODULE); | |
| break; | |
| default: | |
| break; | |
| } | |
| /* Get PLL clock frequency if UART clock source selection is PLL */ | |
| if(u32UartClkSrcSel == 1ul) | |
| { | |
| au32ClkTbl[u32UartClkSrcSel] = CLK_GetPLLClockFreq(); | |
| } | |
| /* Set UART IrDA baud rate in mode 0 */ | |
| if(u32Buadrate != 0ul) | |
| { | |
| u32BaudDiv = UART_BAUD_MODE0_DIVIDER((au32ClkTbl[u32UartClkSrcSel]) / (u32UartClkDivNum + 1ul), u32Buadrate); | |
| if(u32BaudDiv < 0xFFFFul) | |
| { | |
| uart->BAUD = (UART_BAUD_MODE0 | u32BaudDiv); | |
| } | |
| } | |
| /* Configure IrDA relative settings */ | |
| if(u32Direction == UART_IRDA_RXEN) | |
| { | |
| uart->IRDA |= UART_IRDA_RXINV_Msk; /* Rx signal is inverse */ | |
| uart->IRDA &= ~UART_IRDA_TXEN_Msk; | |
| } | |
| else | |
| { | |
| uart->IRDA &= ~UART_IRDA_TXINV_Msk; /* Tx signal is not inverse */ | |
| uart->IRDA |= UART_IRDA_TXEN_Msk; | |
| } | |
| } | |
| /** | |
| * @brief Select and configure RS485 function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32Mode The operation mode(NMM/AUD/AAD). | |
| * - \ref UART_ALTCTL_RS485NMM_Msk | |
| * - \ref UART_ALTCTL_RS485AUD_Msk | |
| * - \ref UART_ALTCTL_RS485AAD_Msk | |
| * @param[in] u32Addr The RS485 address. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to set RS485 relative setting. | |
| */ | |
| void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr) | |
| { | |
| /* Select UART RS485 function mode */ | |
| uart->FUNCSEL = UART_FUNCSEL_RS485; | |
| /* Set RS585 configuration */ | |
| uart->ALTCTL &= ~(UART_ALTCTL_RS485NMM_Msk | UART_ALTCTL_RS485AUD_Msk | UART_ALTCTL_RS485AAD_Msk | UART_ALTCTL_ADDRMV_Msk); | |
| uart->ALTCTL |= (u32Mode | (u32Addr << UART_ALTCTL_ADDRMV_Pos)); | |
| } | |
| /** | |
| * @brief Select and configure LIN function | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] u32Mode The LIN direction : | |
| * - \ref UART_ALTCTL_LINTXEN_Msk | |
| * - \ref UART_ALTCTL_LINRXEN_Msk | |
| * @param[in] u32BreakLength The breakfield length. | |
| * | |
| * @return None | |
| * | |
| * @details The function is used to set LIN relative setting. | |
| */ | |
| void UART_SelectLINMode(UART_T* uart, uint32_t u32Mode, uint32_t u32BreakLength) | |
| { | |
| /* Select LIN function mode */ | |
| uart->FUNCSEL = UART_FUNCSEL_LIN; | |
| /* Select LIN function setting : Tx enable, Rx enable and break field length */ | |
| uart->ALTCTL &= ~(UART_ALTCTL_LINTXEN_Msk | UART_ALTCTL_LINRXEN_Msk | UART_ALTCTL_BRKFL_Msk); | |
| uart->ALTCTL |= (u32Mode | (u32BreakLength << UART_ALTCTL_BRKFL_Pos)); | |
| } | |
| /** | |
| * @brief Write UART data | |
| * | |
| * @param[in] uart The pointer of the specified UART module. | |
| * @param[in] pu8TxBuf The buffer to send the data to UART transmission FIFO. | |
| * @param[out] u32WriteBytes The byte number of data. | |
| * | |
| * @return u32Count transfer byte count | |
| * | |
| * @details The function is to write data into TX buffer to transmit data by UART. | |
| */ | |
| uint32_t UART_Write(UART_T* uart, uint8_t pu8TxBuf[], uint32_t u32WriteBytes) | |
| { | |
| uint32_t u32Count, u32delayno; | |
| uint32_t u32Exit = 0ul; | |
| for(u32Count = 0ul; u32Count != u32WriteBytes; u32Count++) | |
| { | |
| u32delayno = 0ul; | |
| while((uart->FIFOSTS & UART_FIFOSTS_TXEMPTYF_Msk) == 0ul) /* Wait Tx empty and Time-out manner */ | |
| { | |
| u32delayno++; | |
| if(u32delayno >= 0x40000000ul) | |
| { | |
| u32Exit = 1ul; | |
| break; | |
| } | |
| else | |
| { | |
| } | |
| } | |
| if(u32Exit == 1ul) | |
| { | |
| break; | |
| } | |
| else | |
| { | |
| uart->DAT = pu8TxBuf[u32Count]; /* Send UART Data from buffer */ | |
| } | |
| } | |
| return u32Count; | |
| } | |
| /*@}*/ /* end of group UART_EXPORTED_FUNCTIONS */ | |
| /*@}*/ /* end of group UART_Driver */ | |
| /*@}*/ /* end of group Standard_Driver */ | |
| /*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/ |