/**************************************************************************//**
* @file UART.h
* @version V3.00
* $Revision: 23 $
* $Date: 15/05/29 4:19p $
* @brief M051 series UART driver header file
*
* @note
* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __UART_H__
#define __UART_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup UART_Driver UART Driver
@{
*/
/** @addtogroup UART_EXPORTED_CONSTANTS UART Exported Constants
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* UART FIFO size constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART0_FIFO_SIZE 16 /*!< UART0 supports separated receive/transmit 16/16 bytes entry FIFO */
#define UART1_FIFO_SIZE 16 /*!< UART1 supports separated receive/transmit 16/16 bytes entry FIFO */
/*---------------------------------------------------------------------------------------------------------*/
/* UA_FCR constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_FCR_RFITL_1BYTE (0x0 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 1 byte */
#define UART_FCR_RFITL_4BYTES (0x1 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 4 bytes */
#define UART_FCR_RFITL_8BYTES (0x2 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 8 bytes */
#define UART_FCR_RFITL_14BYTES (0x3 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 14 bytes */
#define UART_FCR_RTS_TRI_LEV_1BYTE (0x0 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 1 byte */
#define UART_FCR_RTS_TRI_LEV_4BYTES (0x1 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 4 bytes */
#define UART_FCR_RTS_TRI_LEV_8BYTES (0x2 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 8 bytes */
#define UART_FCR_RTS_TRI_LEV_14BYTES (0x3 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 14 bytes */
/*---------------------------------------------------------------------------------------------------------*/
/* UA_LCR constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_WORD_LEN_5 (0) /*!< UA_LCR setting to set UART word length to 5 bits */
#define UART_WORD_LEN_6 (1) /*!< UA_LCR setting to set UART word length to 6 bits */
#define UART_WORD_LEN_7 (2) /*!< UA_LCR setting to set UART word length to 7 bits */
#define UART_WORD_LEN_8 (3) /*!< UA_LCR setting to set UART word length to 8 bits */
#define UART_PARITY_NONE (0x0 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as no parity */
#define UART_PARITY_ODD (0x1 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as odd parity */
#define UART_PARITY_EVEN (0x3 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to set UART as even parity */
#define UART_PARITY_MARK (0x5 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to keep parity bit as '1' */
#define UART_PARITY_SPACE (0x7 << UART_LCR_PBE_Pos) /*!< UA_LCR setting to keep parity bit as '0' */
#define UART_STOP_BIT_1 (0x0 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for one stop bit */
#define UART_STOP_BIT_1_5 (0x1 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for 1.5 stop bit when 5-bit word length */
#define UART_STOP_BIT_2 (0x1 << UART_LCR_NSB_Pos) /*!< UA_LCR setting for two stop bit when 6, 7, 8-bit word length */
/*---------------------------------------------------------------------------------------------------------*/
/* UART RTS LEVEL TRIGGER constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_RTS_IS_LOW_LEV_ACTIVE (0x1 << UART_MCR_LEV_RTS_Pos) /*!< Set RTS is Low Level Active */
#define UART_RTS_IS_HIGH_LEV_ACTIVE (0x0 << UART_MCR_LEV_RTS_Pos) /*!< Set RTS is High Level Active */
/*---------------------------------------------------------------------------------------------------------*/
/* UA_IRCR constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_IRCR_TX_SELECT (0x1 << UART_IRCR_TX_SELECT_Pos) /*!< Set IrDA function Tx mode */
#define UART_IRCR_RX_SELECT (0x0 << UART_IRCR_TX_SELECT_Pos) /*!< Set IrDA function Rx mode */
/*---------------------------------------------------------------------------------------------------------*/
/* UA_FUNC_SEL constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_FUNC_SEL_UART (0x0 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set UART Function (Default) */
#define UART_FUNC_SEL_LIN (0x1 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set LIN Function */
#define UART_FUNC_SEL_IrDA (0x2 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set IrDA Function */
#define UART_FUNC_SEL_RS485 (0x3 << UART_FUN_SEL_FUN_SEL_Pos) /*!< UA_FUNC_SEL setting to set RS485 Function */
/*---------------------------------------------------------------------------------------------------------*/
/* UART BAUDRATE MODE constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_BAUD_MODE0 (0) /*!< Set UART Baudrate Mode is Mode0 */
#define UART_BAUD_MODE2 (UART_BAUD_DIV_X_EN_Msk | UART_BAUD_DIV_X_ONE_Msk) /*!< Set UART Baudrate Mode is Mode2 */
/*@}*/ /* end of group UART_EXPORTED_CONSTANTS */
/** @addtogroup UART_EXPORTED_FUNCTIONS UART Exported Functions
@{
*/
/**
* @brief Calculate UART baudrate mode0 divider
*
* @param[in] u32SrcFreq UART clock frequency
* @param[in] u32BaudRate Baudrate of UART module
*
* [url=home.php?mod=space&uid=266161]@return[/url] UART baudrate mode0 divider
*
* [url=home.php?mod=space&uid=1543424]@Details[/url] This macro calculate UART baudrate mode0 divider.
*/
#define UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32BaudRate) ((((u32SrcFreq) + ((u32BaudRate)*8)) / (u32BaudRate) >> 4)-2)
/**
* @brief Calculate UART baudrate mode2 divider
*
* @param[in] u32SrcFreq UART clock frequency
* @param[in] u32BaudRate Baudrate of UART module
*
* @return UART baudrate mode2 divider
*
* @details This macro calculate UART baudrate mode2 divider.
*/
#define UART_BAUD_MODE2_DIVIDER(u32SrcFreq, u32BaudRate) ((((u32SrcFreq) + ((u32BaudRate)/2)) / (u32BaudRate))-2)
/**
* @brief Write data
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u8Data Data byte to transmit
*
* @return None
*
* @details This macro write Data to Tx data register.
*/
#define UART_WRITE(uart, u8Data) ((uart)->THR = (u8Data))
/**
* @brief Read data
*
* @param[in] uart The pointer of the specified UART module
*
* @return The oldest data byte in RX FIFO
*
* @details This macro read Rx data register.
*/
#define UART_READ(uart) ((uart)->RBR)
/**
* @brief Get Tx empty
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Tx FIFO is not empty
* @retval >=1 Tx FIFO is empty
*
* @details This macro get Tx empty register value.
*/
#define UART_GET_TX_EMPTY(uart) ((uart)->FSR & UART_FSR_TX_EMPTY_Msk)
/**
* @brief Get Rx empty
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Rx FIFO is not empty
* @retval >=1 Rx FIFO is empty
*
* @details This macro get Rx empty register value.
*/
#define UART_GET_RX_EMPTY(uart) ((uart)->FSR & UART_FSR_RX_EMPTY_Msk)
/**
* @brief Check specified uart port transmission is over.
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Transmission is not over.
* @retval 1 Transmission is over.
*
* @details This macro return if Tx FIFO is empty and specified uart port transmission is over nor not.
*/
#define UART_IS_TX_EMPTY(uart) (((uart)->FSR & UART_FSR_TE_FLAG_Msk) >> UART_FSR_TE_FLAG_Pos)
/**
* @brief Wait specified uart port transmission is over
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro wait specified uart port transmission is over.
*/
#define UART_WAIT_TX_EMPTY(uart) while(!((((uart)->FSR) & UART_FSR_TE_FLAG_Msk) >> UART_FSR_TE_FLAG_Pos))
/**
* @brief Check RX is ready or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 The number of bytes in the RX FIFO is less than the RFITL
* @retval 1 The number of bytes in the RX FIFO equals or larger than RFITL
*
* @details This macro check receive data available interrupt flag is set or not.
*/
#define UART_IS_RX_READY(uart) (((uart)->ISR & UART_ISR_RDA_IF_Msk)>>UART_ISR_RDA_IF_Pos)
/**
* @brief Check TX FIFO is full or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 1 TX FIFO is full
* @retval 0 TX FIFO is not full
*
* @details This macro check TX FIFO is full or not.
*/
#define UART_IS_TX_FULL(uart) (((uart)->FSR & UART_FSR_TX_FULL_Msk)>>UART_FSR_TX_FULL_Pos)
/**
* @brief Check RX FIFO is full or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 1 RX FIFO is full
* @retval 0 RX FIFO is not full
*
* @details This macro check RX FIFO is full or not.
*/
#define UART_IS_RX_FULL(uart) (((uart)->FSR & UART_FSR_RX_FULL_Msk)>>UART_FSR_RX_FULL_Pos)
/**
* @brief Get Tx full register value
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Tx FIFO is not full.
* @retval >=1 Tx FIFO is full.
*
* @details This macro get Tx full register value.
*/
#define UART_GET_TX_FULL(uart) ((uart)->FSR & UART_FSR_TX_FULL_Msk)
/**
* @brief Get Rx full register value
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Rx FIFO is not full.
* @retval >=1 Rx FIFO is full.
*
* @details This macro get Rx full register value.
*/
#define UART_GET_RX_FULL(uart) ((uart)->FSR & UART_FSR_RX_FULL_Msk)
/**
* @brief Enable specified UART interrupt
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntSel Interrupt type select
* - UART_IER_LIN_RX_BRK_IEN_Msk : Lin bus Rx break field interrupt
* - UART_IER_WAKE_EN_Msk : Wakeup interrupt
* - UART_IER_BUF_ERR_IEN_Msk : Buffer Error interrupt
* - UART_IER_RTO_IEN_Msk : Rx time-out interrupt
* - UART_IER_MODEM_IEN_Msk : Modem interrupt
* - UART_IER_RLS_IEN_Msk : Rx Line status interrupt
* - UART_IER_THRE_IEN_Msk : Tx empty interrupt
* - UART_IER_RDA_IEN_Msk : Rx ready interrupt
*
* @return None
*
* @details This macro enable specified UART interrupt.
*/
#define UART_ENABLE_INT(uart, u32eIntSel) ((uart)->IER |= (u32eIntSel))
/**
* @brief Disable specified UART interrupt
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntSel Interrupt type select
* - UART_IER_LIN_RX_BRK_IEN_Msk : Lin bus Rx break field interrupt
* - UART_IER_WAKE_EN_Msk : Wakeup interrupt
* - UART_IER_BUF_ERR_IEN_Msk : Buffer Error interrupt
* - UART_IER_RTO_IEN_Msk : Rx time-out interrupt
* - UART_IER_MODEM_IEN_Msk : Modem interrupt
* - UART_IER_RLS_IEN_Msk : Rx Line status interrupt
* - UART_IER_THRE_IEN_Msk : Tx empty interrupt
* - UART_IER_RDA_IEN_Msk : Rx ready interrupt
*
* @return None
*
* @details This macro enable specified UART interrupt.
*/
#define UART_DISABLE_INT(uart, u32eIntSel) ((uart)->IER &= ~ (u32eIntSel))
/**
* @brief Get specified interrupt indicator status
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntTypeFlag Interrupt Type Flag, should be
* - UART_ISR_LIN_RX_BREAK_INT_Msk : LIN Bus Interrupt Indicator
* - UART_ISR_BUF_ERR_INT_Msk : Buffer Error Interrupt Indicator
* - UART_ISR_TOUT_INT_Msk : Rx Time-out Interrupt Indicator
* - UART_ISR_MODEM_INT_Msk : MODEM Status Interrupt Indicator
* - UART_ISR_RLS_INT_Msk : Rx Line Status Interrupt Indicator
* - UART_ISR_THRE_INT_Msk : Tx Empty Interrupt Indicator
* - UART_ISR_RDA_INT_Msk : Rx Ready Interrupt Indicator
* - UART_ISR_LIN_RX_BREAK_IF_Msk : LIN Bus Interrupt Flag
* - UART_ISR_BUF_ERR_IF_Msk : Buffer Error Interrupt Flag
* - UART_ISR_TOUT_IF_Msk : Rx Time-out Interrupt Flag
* - UART_ISR_MODEM_IF_Msk : MODEM Status Interrupt Flag
* - UART_ISR_RLS_IF_Msk : Rx Line Status Interrupt Flag
* - UART_ISR_THRE_IF_Msk : Tx Empty Interrupt Flag
* - UART_ISR_RDA_IF_Msk : Rx Ready Interrupt Flag
*
* @retval 0 The specified interrupt is not happened.
* 1 The specified interrupt is happened.
*
* @details This macro get specified interrupt flag or interrupt indicator status.
*/
#define UART_GET_INT_FLAG(uart,u32eIntTypeFlag) (((uart)->ISR & (u32eIntTypeFlag))?1:0)
/**
* @brief Set RTS pin to low
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro set RTS pin to low.
*/
__STATIC_INLINE void UART_CLEAR_RTS(UART_T* uart)
{
(uart)->MCR |= UART_MCR_LEV_RTS_Msk;
(uart)->MCR &= ~UART_MCR_RTS_Msk;
}
/**
* @brief Set RTS pin to high
*
* @param[in] uart The pointer of the specified UART module
* @return None
*
* @details This macro set RTS pin to high.
*/
__STATIC_INLINE void UART_SET_RTS(UART_T* uart)
{
(uart)->MCR |= UART_MCR_LEV_RTS_Msk | UART_MCR_RTS_Msk;
}
/**
* @brief Clear RS-485 Address Byte Detection Flag
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro clear RS-485 address byte detection flag.
*/
#define UART_RS485_CLEAR_ADDR_FLAG(uart) ((uart)->FSR = UART_FSR_RS485_ADD_DETF_Msk)
/**
* @brief Get RS-485 Address Byte Detection Flag
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Receiver detects a data that is not an address bit.
* @retval 1 Receiver detects a data that is an address bit.
*
* @details This macro get RS-485 address byte detection flag.
*/
#define UART_RS485_GET_ADDR_FLAG(uart) (((uart)->FSR & UART_FSR_RS485_ADD_DETF_Msk) >> UART_FSR_RS485_ADD_DETF_Pos)
void UART_ClearIntFlag(UART_T* uart , uint32_t u32InterruptFlag);
void UART_Close(UART_T* uart);
void UART_DisableFlowCtrl(UART_T* uart);
void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag);
void UART_EnableFlowCtrl(UART_T* uart);
void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag);
void UART_Open(UART_T* uart, uint32_t u32baudrate);
uint32_t UART_Read(UART_T* uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes);
void UART_SetLine_Config(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits);
void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC);
void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction);
void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr);
void UART_SelectLINMode(UART_T* uart, uint32_t u32Mode, uint32_t u32BreakLength);
uint32_t UART_Write(UART_T* uart, uint8_t *pu8TxBuf, uint32_t u32WriteBytes);
/*@}*/ /* end of group UART_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group UART_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif //__UART_H__
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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