381 lines
14 KiB
C
381 lines
14 KiB
C
/**************************************************************************//**
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* @file UART.h
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* @version V1.00
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* $Revision: 7 $
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* $Date: 14/02/05 10:27a $
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* @brief Mini51 series UART driver header file
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*
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* @note
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* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __UART_H__
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#define __UART_H__
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#include "M051Series.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup M051_Device_Driver M051 Device Driver
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@{
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*/
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/** @addtogroup M051_UART_Driver UART Driver
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@{
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*/
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/** @addtogroup M051_UART_EXPORTED_CONSTANTS UART Exported Constants
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* UA_FCR constants definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define UART_FCR_RFITL_1BYTE (0x0 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 1 bit */
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#define UART_FCR_RFITL_4BYTES (0x1 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 4 bits */
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#define UART_FCR_RFITL_8BYTES (0x2 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 8 bits */
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#define UART_FCR_RFITL_14BYTES (0x3 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 14 bits */
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#define UART_FCR_RTS_TRI_LEV_1BYTE (0x0 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 1 bit */
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#define UART_FCR_RTS_TRI_LEV_4BYTES (0x1 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 4 bits */
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#define UART_FCR_RTS_TRI_LEV_8BYTES (0x2 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 8 bits */
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#define UART_FCR_RTS_TRI_LEV_14BYTES (0x3 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 14 bits */
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/*---------------------------------------------------------------------------------------------------------*/
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/* UA_LCR constants definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define UART_WORD_LEN_5 (0) /*!< UA_LCR setting to set UART word length to 5 bits */
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#define UART_WORD_LEN_6 (1) /*!< UA_LCR setting to set UART word length to 6 bits */
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#define UART_WORD_LEN_7 (2) /*!< UA_LCR setting to set UART word length to 7 bits */
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#define UART_WORD_LEN_8 (3) /*!< UA_LCR setting to set UART word length to 8 bits */
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#define UART_PARITY_NONE (0x0 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as no parity */
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#define UART_PARITY_ODD (0x1 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as odd parity */
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#define UART_PARITY_EVEN (0x3 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as even parity */
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#define UART_PARITY_MARK (0x5 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to keep parity bit as '1' */
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#define UART_PARITY_SPACE (0x7 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to keep parity bit as '0' */
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#define UART_STOP_BIT_1 (0x0 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for one stop bit */
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#define UART_STOP_BIT_1_5 (0x1 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for 1.5 stop bit when 5-bit word length */
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#define UART_STOP_BIT_2 (0x1 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for two stop bit when 6, 7, 8-bit word length */
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/*---------------------------------------------------------------------------------------------------------*/
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/* UART RTS LEVEL TRIGGER constants definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define UART_RTS_IS_HIGH_LEV_ACTIVE (0x1 << UART_MCR_LEV_RTS_Pos) /*!< Set RTS is High Level Active */
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#define UART_RTS_IS_LOW_LEV_ACTIVE (0x0 << UART_MCR_LEV_RTS_Pos) /*!< Set RTS is Low Level Active */
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/*---------------------------------------------------------------------------------------------------------*/
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/* UA_IRCR constants definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define UART_IRCR_TX_SELECT (1) /*!< Set IrDA function Tx mode */
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#define UART_IRCR_RX_SELECT (0) /*!< Set IrDA function Rx mode */
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/*---------------------------------------------------------------------------------------------------------*/
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/* UA_FUNC_SEL constants definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define UART_FUNC_SEL_UART (0x0 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set UART Function (Default) */
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#define UART_FUNC_SEL_LIN (0x1 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set LIN Function */
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#define UART_FUNC_SEL_IrDA (0x2 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set IrDA Function */
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#define UART_FUNC_SEL_RS485 (0x3 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set RS485 Function */
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/*@}*/ /* end of group M051_UART_EXPORTED_CONSTANTS */
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/** @addtogroup M051_UART_EXPORTED_FUNCTIONS UART Exported Functions
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@{
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*/
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/**
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* @brief Calculate UART baudrate mode0 divider
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*
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* @param None
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*
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* @return UART baudrate mode0 register setting value
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*
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*/
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#define UART_BAUD_MODE0 (0)
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/**
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* @brief Calculate UART baudrate mode0 divider
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*
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* @param None
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*
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* @return UART baudrate mode2 register setting value
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*
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*/
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#define UART_BAUD_MODE2 (UART_BAUD_DIV_X_EN_Msk | UART_BAUD_DIV_X_ONE_Msk)
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/**
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* @brief Calculate UART baudrate mode0 divider
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*
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* @param u32SrcFreq UART clock frequency
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* @param u32BaudRate Baudrate of UART module
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*
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* @return UART baudrate mode0 divider
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*
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*/
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#define UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32BaudRate) (((u32SrcFreq + (u32BaudRate*8)) / u32BaudRate >> 4)-2)
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/**
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* @brief Calculate UART baudrate mode2 divider
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*
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* @param u32SrcFreq UART clock frequency
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* @param u32BaudRate Baudrate of UART module
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*
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* @return UART baudrate mode2 divider
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*/
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#define UART_BAUD_MODE2_DIVIDER(u32SrcFreq, u32BaudRate) (((u32SrcFreq + (u32BaudRate/2)) / u32BaudRate)-2)
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/**
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* @brief Write Data to Tx data register
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*
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* @param uart The base address of UART module.
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* @param u8Data Data byte to transmit
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*
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* @return None
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*/
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#define UART_WRITE(uart, u8Data) (uart->THR = (u8Data))
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/**
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* @brief Read Rx data register
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*
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* @param uart The base address of UART module.
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*
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* @return The oldest data byte in RX FIFO
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*/
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#define UART_READ(uart) (uart->RBR)
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/**
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* @brief Get Tx empty register value.
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*
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* @param uart The base address of UART module
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*
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* @return Tx empty register value.
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*/
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#define UART_GET_TX_EMPTY(uart) (uart->FSR & UART_FSR_TX_EMPTY_Msk)
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/**
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* @brief Get Rx empty register value.
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*
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* @param uart The base address of UART module
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*
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* @return Rx empty register value.
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*/
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#define UART_GET_RX_EMPTY(uart) (uart->FSR & UART_FSR_RX_EMPTY_Msk)
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/**
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* @brief Check specified uart port transmission is over.
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*
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* @param uart The base address of UART module
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*
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* @return TE_Flag.
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*/
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#define UART_IS_TX_EMPTY(uart) ((uart->FSR & UART_FSR_TE_FLAG_Msk) >> UART_FSR_TE_FLAG_Pos)
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/**
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* @brief Wait specified uart port transmission is over
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*
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* @param uart The base address of UART module
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*
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* @return None
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*/
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#define UART_WAIT_TX_EMPTY(uart) while(!(((uart->FSR) & UART_FSR_TE_FLAG_Msk) >> UART_FSR_TE_FLAG_Pos))
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/**
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* @brief Check RDA_IF is set or not
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*
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* @param uart The base address of UART module
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*
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* @return
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* 0 : The number of bytes in the RX FIFO is less than the RFITL
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* 1 : The number of bytes in the RX FIFO equals or larger than RFITL
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*/
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#define UART_IS_RX_READY(uart) ((uart->ISR & UART_ISR_RDA_IF_Msk)>>UART_ISR_RDA_IF_Pos)
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/**
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* @brief Check TX FIFO is full or not
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*
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* @param uart The base address of UART module
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*
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* @return
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* 1 = TX FIFO is full
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* 0 = TX FIFO is not full
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*/
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#define UART_IS_TX_FULL(uart) ((uart->FSR & UART_FSR_TX_FULL_Msk)>>UART_FSR_TX_FULL_Pos)
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/**
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* @brief Check RX FIFO is full or not
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*
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* @param uart The base address of UART module
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*
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* @return
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* 1 = RX FIFO is full
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* 0 = RX FIFO is not full
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*
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*/
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#define UART_IS_RX_FULL(uart) ((uart->FSR & UART_FSR_RX_FULL_Msk)>>UART_FSR_RX_FULL_Pos)
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/**
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* @brief Get Tx full register value
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*
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* @param uart The base address of UART module
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*
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* @return Tx full register value
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*/
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#define UART_GET_TX_FULL(uart) (uart->FSR & UART_FSR_TX_FULL_Msk)
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/**
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* @brief Get Rx full register value
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*
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* @param uart The base address of UART module
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*
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* @return Rx full register value
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*/
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#define UART_GET_RX_FULL(uart) (uart->FSR & UART_FSR_RX_FULL_Msk)
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/**
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* @brief Enable specified interrupt
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*
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* @param uart The base address of UART module
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* @param u32eIntSel Interrupt type select
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* - UART_IER_LIN_RX_BRK_IEN_Msk : Lin bus Rx break field interrupt
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* - UART_IER_WAKE_EN_Msk : Wakeup interrupt
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* - UART_IER_BUF_ERR_IEN_Msk : Buffer Error interrupt
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* - UART_IER_RTO_IEN_Msk : Rx time-out interrupt
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* - UART_IER_MODEM_IEN_Msk : Modem interrupt
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* - UART_IER_RLS_IEN_Msk : Rx Line status interrupt
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* - UART_IER_THRE_IEN_Msk : Tx empty interrupt
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* - UART_IER_RDA_IEN_Msk : Rx ready interrupt
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*
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* @return None
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*/
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#define UART_ENABLE_INT(uart, u32eIntSel) (uart->IER |= (u32eIntSel))
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/**
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* @brief Disable specified interrupt
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*
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* @param uart The base address of UART module
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* @param u32eIntSel Interrupt type select
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* - UART_IER_LIN_RX_BRK_IEN_Msk : Lin bus Rx break field interrupt
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* - UART_IER_WAKE_EN_Msk : Wakeup interrupt
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* - UART_IER_BUF_ERR_IEN_Msk : Buffer Error interrupt
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* - UART_IER_RTO_IEN_Msk : Rx time-out interrupt
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* - UART_IER_MODEM_IEN_Msk : Modem interrupt
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* - UART_IER_RLS_IEN_Msk : Rx Line status interrupt
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* - UART_IER_THRE_IEN_Msk : Tx empty interrupt
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* - UART_IER_RDA_IEN_Msk : Rx ready interrupt
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* @return None
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*/
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#define UART_DISABLE_INT(uart, u32eIntSel) (uart->IER &= ~ (u32eIntSel))
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/**
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* @brief Get specified interrupt flag/status
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*
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* @param uart The base address of UART module
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* @param u32eIntTypeFlag Interrupt Type Flag,should be
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* - UART_ISR_LIN_RX_BREAK_INT_Msk : Lin bus interrupt
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* - UART_ISR_BUF_ERR_INT_Msk : Buffer Error interrupt
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* - UART_ISR_TOUT_INT_Msk : Rx time-out interrupt
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* - UART_ISR_MODEM_INT_Msk : Modem interrupt
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* - UART_ISR_RLS_INT_Msk : Rx Line status interrupt
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* - UART_ISR_THRE_INT_Msk : Tx empty interrupt
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* - UART_ISR_RDA_INT_Msk : Rx ready interrupt
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*
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* @return
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* 0 = The specified interrupt is not happened.
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* 1 = The specified interrupt is happened.
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*/
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#define UART_GET_INT_FLAG(uart,u32eIntTypeFlag) ((uart->ISR & (u32eIntTypeFlag))?1:0)
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/**
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* @brief Set RTS pin is low
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*
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* @param uart The base address of UART module
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* @return None
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*/
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__INLINE void UART_CLEAR_RTS(UART_T* uart)
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{
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uart->MCR |= UART_MCR_LEV_RTS_Msk;
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uart->MCR &= ~UART_MCR_RTS_Msk;
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}
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/**
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* @brief Set RTS pin is high
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*
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* @param uart The base address of UART module
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* @return None
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*/
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__INLINE void UART_SET_RTS(UART_T* uart)
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{
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uart->MCR |= UART_MCR_LEV_RTS_Msk | UART_MCR_RTS_Msk;
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}
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/**
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* @brief Clear RS-485 Address Byte Detection Flag
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*
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* @param uart The base address of UART module
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* @return None
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*/
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#define UART_RS485_CLEAR_ADDR_FLAG(uart) (uart->FSR |= UART_FSR_RS485_ADD_DETF_Msk)
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/**
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* @brief Get RS-485 Address Byte Detection Flag
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*
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* @param uart The base address of UART module
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* @return RS-485 Address Byte Detection Flag
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*/
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#define UART_RS485_GET_ADDR_FLAG(uart) ((uart->FSR & UART_FSR_RS485_ADD_DETF_Msk) >> UART_FSR_RS485_ADD_DETF_Pos)
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void UART_ClearIntFlag(UART_T* uart , uint32_t u32InterruptFlag);
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void UART_Close(UART_T* uart);
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void UART_DisableFlowCtrl(UART_T* uart);
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void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag);
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void UART_EnableFlowCtrl(UART_T* uart);
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void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag);
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void UART_Open(UART_T* uart, uint32_t u32baudrate);
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uint32_t UART_Read(UART_T* uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes);
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void UART_SetLine_Config(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits);
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void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC);
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void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction);
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void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr);
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void UART_SelectLINMode(UART_T* uart, uint32_t u32Mode, uint32_t u32BreakLength);
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uint32_t UART_Write(UART_T* uart, uint8_t *pu8TxBuf, uint32_t u32WriteBytes);
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/*@}*/ /* end of group M051_UART_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group M051_UART_Driver */
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/*@}*/ /* end of group M051_Device_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif //__UART_H__
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/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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