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TARGET_KL82Z/TOOLCHAIN_IAR/fsl_lpuart.h@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_USENSE/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL82Z/drivers/fsl_lpuart.h@145:64910690c574 
mbed library. Release version 164

Who changed what in which revision?

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AnnaBridge 145:64910690c574 1 /*
AnnaBridge 145:64910690c574 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
AnnaBridge 145:64910690c574 3 * All rights reserved.
AnnaBridge 145:64910690c574 4 *
AnnaBridge 145:64910690c574 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 145:64910690c574 6 * are permitted provided that the following conditions are met:
AnnaBridge 145:64910690c574 7 *
AnnaBridge 145:64910690c574 8 * o Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 145:64910690c574 9 * of conditions and the following disclaimer.
AnnaBridge 145:64910690c574 10 *
AnnaBridge 145:64910690c574 11 * o Redistributions in binary form must reproduce the above copyright notice, this
AnnaBridge 145:64910690c574 12 * list of conditions and the following disclaimer in the documentation and/or
AnnaBridge 145:64910690c574 13 * other materials provided with the distribution.
AnnaBridge 145:64910690c574 14 *
AnnaBridge 145:64910690c574 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
AnnaBridge 145:64910690c574 16 * contributors may be used to endorse or promote products derived from this
AnnaBridge 145:64910690c574 17 * software without specific prior written permission.
AnnaBridge 145:64910690c574 18 *
AnnaBridge 145:64910690c574 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 145:64910690c574 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 145:64910690c574 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 145:64910690c574 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 145:64910690c574 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 145:64910690c574 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 145:64910690c574 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 145:64910690c574 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 145:64910690c574 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 145:64910690c574 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 145:64910690c574 29 */
AnnaBridge 145:64910690c574 30 #ifndef _FSL_LPUART_H_
AnnaBridge 145:64910690c574 31 #define _FSL_LPUART_H_
AnnaBridge 145:64910690c574 32
AnnaBridge 145:64910690c574 33 #include "fsl_common.h"
AnnaBridge 145:64910690c574 34
AnnaBridge 145:64910690c574 35 /*!
AnnaBridge 145:64910690c574 36 * @addtogroup lpuart_driver
AnnaBridge 145:64910690c574 37 * @{
AnnaBridge 145:64910690c574 38 */
AnnaBridge 145:64910690c574 39
AnnaBridge 145:64910690c574 40
AnnaBridge 145:64910690c574 41 /*******************************************************************************
AnnaBridge 145:64910690c574 42 * Definitions
AnnaBridge 145:64910690c574 43 ******************************************************************************/
AnnaBridge 145:64910690c574 44
AnnaBridge 145:64910690c574 45 /*! @name Driver version */
AnnaBridge 145:64910690c574 46 /*@{*/
AnnaBridge 145:64910690c574 47 /*! @brief LPUART driver version 2.2.1. */
AnnaBridge 145:64910690c574 48 #define FSL_LPUART_DRIVER_VERSION (MAKE_VERSION(2, 2, 1))
AnnaBridge 145:64910690c574 49 /*@}*/
AnnaBridge 145:64910690c574 50
AnnaBridge 145:64910690c574 51 /*! @brief Error codes for the LPUART driver. */
AnnaBridge 145:64910690c574 52 enum _lpuart_status
AnnaBridge 145:64910690c574 53 {
AnnaBridge 145:64910690c574 54 kStatus_LPUART_TxBusy = MAKE_STATUS(kStatusGroup_LPUART, 0), /*!< TX busy */
AnnaBridge 145:64910690c574 55 kStatus_LPUART_RxBusy = MAKE_STATUS(kStatusGroup_LPUART, 1), /*!< RX busy */
AnnaBridge 145:64910690c574 56 kStatus_LPUART_TxIdle = MAKE_STATUS(kStatusGroup_LPUART, 2), /*!< LPUART transmitter is idle. */
AnnaBridge 145:64910690c574 57 kStatus_LPUART_RxIdle = MAKE_STATUS(kStatusGroup_LPUART, 3), /*!< LPUART receiver is idle. */
AnnaBridge 145:64910690c574 58 kStatus_LPUART_TxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_LPUART, 4), /*!< TX FIFO watermark too large */
AnnaBridge 145:64910690c574 59 kStatus_LPUART_RxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_LPUART, 5), /*!< RX FIFO watermark too large */
AnnaBridge 145:64910690c574 60 kStatus_LPUART_FlagCannotClearManually =
AnnaBridge 145:64910690c574 61 MAKE_STATUS(kStatusGroup_LPUART, 6), /*!< Some flag can't manually clear */
AnnaBridge 145:64910690c574 62 kStatus_LPUART_Error = MAKE_STATUS(kStatusGroup_LPUART, 7), /*!< Error happens on LPUART. */
AnnaBridge 145:64910690c574 63 kStatus_LPUART_RxRingBufferOverrun =
AnnaBridge 145:64910690c574 64 MAKE_STATUS(kStatusGroup_LPUART, 8), /*!< LPUART RX software ring buffer overrun. */
AnnaBridge 145:64910690c574 65 kStatus_LPUART_RxHardwareOverrun = MAKE_STATUS(kStatusGroup_LPUART, 9), /*!< LPUART RX receiver overrun. */
AnnaBridge 145:64910690c574 66 kStatus_LPUART_NoiseError = MAKE_STATUS(kStatusGroup_LPUART, 10), /*!< LPUART noise error. */
AnnaBridge 145:64910690c574 67 kStatus_LPUART_FramingError = MAKE_STATUS(kStatusGroup_LPUART, 11), /*!< LPUART framing error. */
AnnaBridge 145:64910690c574 68 kStatus_LPUART_ParityError = MAKE_STATUS(kStatusGroup_LPUART, 12), /*!< LPUART parity error. */
AnnaBridge 145:64910690c574 69 kStatus_LPUART_BaudrateNotSupport =
AnnaBridge 145:64910690c574 70 MAKE_STATUS(kStatusGroup_LPUART, 13), /*!< Baudrate is not support in current clock source */
AnnaBridge 145:64910690c574 71 };
AnnaBridge 145:64910690c574 72
AnnaBridge 145:64910690c574 73 /*! @brief LPUART parity mode. */
AnnaBridge 145:64910690c574 74 typedef enum _lpuart_parity_mode
AnnaBridge 145:64910690c574 75 {
AnnaBridge 145:64910690c574 76 kLPUART_ParityDisabled = 0x0U, /*!< Parity disabled */
AnnaBridge 145:64910690c574 77 kLPUART_ParityEven = 0x2U, /*!< Parity enabled, type even, bit setting: PE|PT = 10 */
AnnaBridge 145:64910690c574 78 kLPUART_ParityOdd = 0x3U, /*!< Parity enabled, type odd, bit setting: PE|PT = 11 */
AnnaBridge 145:64910690c574 79 } lpuart_parity_mode_t;
AnnaBridge 145:64910690c574 80
AnnaBridge 145:64910690c574 81 /*! @brief LPUART data bits count. */
AnnaBridge 145:64910690c574 82 typedef enum _lpuart_data_bits
AnnaBridge 145:64910690c574 83 {
AnnaBridge 145:64910690c574 84 kLPUART_EightDataBits = 0x0U, /*!< Eight data bit */
AnnaBridge 145:64910690c574 85 #if defined(FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT) && FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT
AnnaBridge 145:64910690c574 86 kLPUART_SevenDataBits = 0x1U, /*!< Seven data bit */
AnnaBridge 145:64910690c574 87 #endif
AnnaBridge 145:64910690c574 88 } lpuart_data_bits_t;
AnnaBridge 145:64910690c574 89
AnnaBridge 145:64910690c574 90 /*! @brief LPUART stop bit count. */
AnnaBridge 145:64910690c574 91 typedef enum _lpuart_stop_bit_count
AnnaBridge 145:64910690c574 92 {
AnnaBridge 145:64910690c574 93 kLPUART_OneStopBit = 0U, /*!< One stop bit */
AnnaBridge 145:64910690c574 94 kLPUART_TwoStopBit = 1U, /*!< Two stop bits */
AnnaBridge 145:64910690c574 95 } lpuart_stop_bit_count_t;
AnnaBridge 145:64910690c574 96
AnnaBridge 145:64910690c574 97 /*!
AnnaBridge 145:64910690c574 98 * @brief LPUART interrupt configuration structure, default settings all disabled.
AnnaBridge 145:64910690c574 99 *
AnnaBridge 145:64910690c574 100 * This structure contains the settings for all LPUART interrupt configurations.
AnnaBridge 145:64910690c574 101 */
AnnaBridge 145:64910690c574 102 enum _lpuart_interrupt_enable
AnnaBridge 145:64910690c574 103 {
AnnaBridge 145:64910690c574 104 #if defined(FSL_FEATURE_LPUART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_LPUART_HAS_LIN_BREAK_DETECT
AnnaBridge 145:64910690c574 105 kLPUART_LinBreakInterruptEnable = (LPUART_BAUD_LBKDIE_MASK >> 8), /*!< LIN break detect. */
AnnaBridge 145:64910690c574 106 #endif
AnnaBridge 145:64910690c574 107 kLPUART_RxActiveEdgeInterruptEnable = (LPUART_BAUD_RXEDGIE_MASK >> 8), /*!< Receive Active Edge. */
AnnaBridge 145:64910690c574 108 kLPUART_TxDataRegEmptyInterruptEnable = (LPUART_CTRL_TIE_MASK), /*!< Transmit data register empty. */
AnnaBridge 145:64910690c574 109 kLPUART_TransmissionCompleteInterruptEnable = (LPUART_CTRL_TCIE_MASK), /*!< Transmission complete. */
AnnaBridge 145:64910690c574 110 kLPUART_RxDataRegFullInterruptEnable = (LPUART_CTRL_RIE_MASK), /*!< Receiver data register full. */
AnnaBridge 145:64910690c574 111 kLPUART_IdleLineInterruptEnable = (LPUART_CTRL_ILIE_MASK), /*!< Idle line. */
AnnaBridge 145:64910690c574 112 kLPUART_RxOverrunInterruptEnable = (LPUART_CTRL_ORIE_MASK), /*!< Receiver Overrun. */
AnnaBridge 145:64910690c574 113 kLPUART_NoiseErrorInterruptEnable = (LPUART_CTRL_NEIE_MASK), /*!< Noise error flag. */
AnnaBridge 145:64910690c574 114 kLPUART_FramingErrorInterruptEnable = (LPUART_CTRL_FEIE_MASK), /*!< Framing error flag. */
AnnaBridge 145:64910690c574 115 kLPUART_ParityErrorInterruptEnable = (LPUART_CTRL_PEIE_MASK), /*!< Parity error flag. */
AnnaBridge 145:64910690c574 116 #if defined(FSL_FEATURE_LPUART_HAS_FIFO) && FSL_FEATURE_LPUART_HAS_FIFO
AnnaBridge 145:64910690c574 117 kLPUART_TxFifoOverflowInterruptEnable = (LPUART_FIFO_TXOFE_MASK >> 8), /*!< Transmit FIFO Overflow. */
AnnaBridge 145:64910690c574 118 kLPUART_RxFifoUnderflowInterruptEnable = (LPUART_FIFO_RXUFE_MASK >> 8), /*!< Receive FIFO Underflow. */
AnnaBridge 145:64910690c574 119 #endif
AnnaBridge 145:64910690c574 120 };
AnnaBridge 145:64910690c574 121
AnnaBridge 145:64910690c574 122 /*!
AnnaBridge 145:64910690c574 123 * @brief LPUART status flags.
AnnaBridge 145:64910690c574 124 *
AnnaBridge 145:64910690c574 125 * This provides constants for the LPUART status flags for use in the LPUART functions.
AnnaBridge 145:64910690c574 126 */
AnnaBridge 145:64910690c574 127 enum _lpuart_flags
AnnaBridge 145:64910690c574 128 {
AnnaBridge 145:64910690c574 129 kLPUART_TxDataRegEmptyFlag =
AnnaBridge 145:64910690c574 130 (LPUART_STAT_TDRE_MASK), /*!< Transmit data register empty flag, sets when transmit buffer is empty */
AnnaBridge 145:64910690c574 131 kLPUART_TransmissionCompleteFlag =
AnnaBridge 145:64910690c574 132 (LPUART_STAT_TC_MASK), /*!< Transmission complete flag, sets when transmission activity complete */
AnnaBridge 145:64910690c574 133 kLPUART_RxDataRegFullFlag =
AnnaBridge 145:64910690c574 134 (LPUART_STAT_RDRF_MASK), /*!< Receive data register full flag, sets when the receive data buffer is full */
AnnaBridge 145:64910690c574 135 kLPUART_IdleLineFlag = (LPUART_STAT_IDLE_MASK), /*!< Idle line detect flag, sets when idle line detected */
AnnaBridge 145:64910690c574 136 kLPUART_RxOverrunFlag = (LPUART_STAT_OR_MASK), /*!< Receive Overrun, sets when new data is received before data is
AnnaBridge 145:64910690c574 137 read from receive register */
AnnaBridge 145:64910690c574 138 kLPUART_NoiseErrorFlag = (LPUART_STAT_NF_MASK), /*!< Receive takes 3 samples of each received bit. If any of these
AnnaBridge 145:64910690c574 139 samples differ, noise flag sets */
AnnaBridge 145:64910690c574 140 kLPUART_FramingErrorFlag =
AnnaBridge 145:64910690c574 141 (LPUART_STAT_FE_MASK), /*!< Frame error flag, sets if logic 0 was detected where stop bit expected */
AnnaBridge 145:64910690c574 142 kLPUART_ParityErrorFlag = (LPUART_STAT_PF_MASK), /*!< If parity enabled, sets upon parity error detection */
AnnaBridge 145:64910690c574 143 #if defined(FSL_FEATURE_LPUART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_LPUART_HAS_LIN_BREAK_DETECT
AnnaBridge 145:64910690c574 144 kLPUART_LinBreakFlag = (LPUART_STAT_LBKDIF_MASK), /*!< LIN break detect interrupt flag, sets when LIN break char
AnnaBridge 145:64910690c574 145 detected and LIN circuit enabled */
AnnaBridge 145:64910690c574 146 #endif
AnnaBridge 145:64910690c574 147 kLPUART_RxActiveEdgeFlag =
AnnaBridge 145:64910690c574 148 (LPUART_STAT_RXEDGIF_MASK), /*!< Receive pin active edge interrupt flag, sets when active edge detected */
AnnaBridge 145:64910690c574 149 kLPUART_RxActiveFlag =
AnnaBridge 145:64910690c574 150 (LPUART_STAT_RAF_MASK), /*!< Receiver Active Flag (RAF), sets at beginning of valid start bit */
AnnaBridge 145:64910690c574 151 #if defined(FSL_FEATURE_LPUART_HAS_ADDRESS_MATCHING) && FSL_FEATURE_LPUART_HAS_ADDRESS_MATCHING
AnnaBridge 145:64910690c574 152 kLPUART_DataMatch1Flag = LPUART_STAT_MA1F_MASK, /*!< The next character to be read from LPUART_DATA matches MA1*/
AnnaBridge 145:64910690c574 153 kLPUART_DataMatch2Flag = LPUART_STAT_MA2F_MASK, /*!< The next character to be read from LPUART_DATA matches MA2*/
AnnaBridge 145:64910690c574 154 #endif
AnnaBridge 145:64910690c574 155 #if defined(FSL_FEATURE_LPUART_HAS_EXTENDED_DATA_REGISTER_FLAGS) && FSL_FEATURE_LPUART_HAS_EXTENDED_DATA_REGISTER_FLAGS
AnnaBridge 145:64910690c574 156 kLPUART_NoiseErrorInRxDataRegFlag =
AnnaBridge 145:64910690c574 157 (LPUART_DATA_NOISY_MASK >> 10), /*!< NOISY bit, sets if noise detected in current data word */
AnnaBridge 145:64910690c574 158 kLPUART_ParityErrorInRxDataRegFlag =
AnnaBridge 145:64910690c574 159 (LPUART_DATA_PARITYE_MASK >> 10), /*!< PARITYE bit, sets if noise detected in current data word */
AnnaBridge 145:64910690c574 160 #endif
AnnaBridge 145:64910690c574 161 #if defined(FSL_FEATURE_LPUART_HAS_FIFO) && FSL_FEATURE_LPUART_HAS_FIFO
AnnaBridge 145:64910690c574 162 kLPUART_TxFifoEmptyFlag = (LPUART_FIFO_TXEMPT_MASK >> 16), /*!< TXEMPT bit, sets if transmit buffer is empty */
AnnaBridge 145:64910690c574 163 kLPUART_RxFifoEmptyFlag = (LPUART_FIFO_RXEMPT_MASK >> 16), /*!< RXEMPT bit, sets if receive buffer is empty */
AnnaBridge 145:64910690c574 164 kLPUART_TxFifoOverflowFlag =
AnnaBridge 145:64910690c574 165 (LPUART_FIFO_TXOF_MASK >> 16), /*!< TXOF bit, sets if transmit buffer overflow occurred */
AnnaBridge 145:64910690c574 166 kLPUART_RxFifoUnderflowFlag =
AnnaBridge 145:64910690c574 167 (LPUART_FIFO_RXUF_MASK >> 16), /*!< RXUF bit, sets if receive buffer underflow occurred */
AnnaBridge 145:64910690c574 168 #endif
AnnaBridge 145:64910690c574 169 };
AnnaBridge 145:64910690c574 170
AnnaBridge 145:64910690c574 171 /*! @brief LPUART configure structure. */
AnnaBridge 145:64910690c574 172 typedef struct _lpuart_config
AnnaBridge 145:64910690c574 173 {
AnnaBridge 145:64910690c574 174 uint32_t baudRate_Bps; /*!< LPUART baud rate */
AnnaBridge 145:64910690c574 175 lpuart_parity_mode_t parityMode; /*!< Parity mode, disabled (default), even, odd */
AnnaBridge 145:64910690c574 176 lpuart_data_bits_t dataBitsCount; /*!< Data bits count, eight (default), seven */
AnnaBridge 145:64910690c574 177 bool isMsb; /*!< Data bits order, LSB (default), MSB */
AnnaBridge 145:64910690c574 178 #if defined(FSL_FEATURE_LPUART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_LPUART_HAS_STOP_BIT_CONFIG_SUPPORT
AnnaBridge 145:64910690c574 179 lpuart_stop_bit_count_t stopBitCount; /*!< Number of stop bits, 1 stop bit (default) or 2 stop bits */
AnnaBridge 145:64910690c574 180 #endif
AnnaBridge 145:64910690c574 181 #if defined(FSL_FEATURE_LPUART_HAS_FIFO) && FSL_FEATURE_LPUART_HAS_FIFO
AnnaBridge 145:64910690c574 182 uint8_t txFifoWatermark; /*!< TX FIFO watermark */
AnnaBridge 145:64910690c574 183 uint8_t rxFifoWatermark; /*!< RX FIFO watermark */
AnnaBridge 145:64910690c574 184 #endif
AnnaBridge 145:64910690c574 185 bool enableTx; /*!< Enable TX */
AnnaBridge 145:64910690c574 186 bool enableRx; /*!< Enable RX */
AnnaBridge 145:64910690c574 187 } lpuart_config_t;
AnnaBridge 145:64910690c574 188
AnnaBridge 145:64910690c574 189 /*! @brief LPUART transfer structure. */
AnnaBridge 145:64910690c574 190 typedef struct _lpuart_transfer
AnnaBridge 145:64910690c574 191 {
AnnaBridge 145:64910690c574 192 uint8_t *data; /*!< The buffer of data to be transfer.*/
AnnaBridge 145:64910690c574 193 size_t dataSize; /*!< The byte count to be transfer. */
AnnaBridge 145:64910690c574 194 } lpuart_transfer_t;
AnnaBridge 145:64910690c574 195
AnnaBridge 145:64910690c574 196 /* Forward declaration of the handle typedef. */
AnnaBridge 145:64910690c574 197 typedef struct _lpuart_handle lpuart_handle_t;
AnnaBridge 145:64910690c574 198
AnnaBridge 145:64910690c574 199 /*! @brief LPUART transfer callback function. */
AnnaBridge 145:64910690c574 200 typedef void (*lpuart_transfer_callback_t)(LPUART_Type *base, lpuart_handle_t *handle, status_t status, void *userData);
AnnaBridge 145:64910690c574 201
AnnaBridge 145:64910690c574 202 /*! @brief LPUART handle structure. */
AnnaBridge 145:64910690c574 203 struct _lpuart_handle
AnnaBridge 145:64910690c574 204 {
AnnaBridge 145:64910690c574 205 uint8_t *volatile txData; /*!< Address of remaining data to send. */
AnnaBridge 145:64910690c574 206 volatile size_t txDataSize; /*!< Size of the remaining data to send. */
AnnaBridge 145:64910690c574 207 size_t txDataSizeAll; /*!< Size of the data to send out. */
AnnaBridge 145:64910690c574 208 uint8_t *volatile rxData; /*!< Address of remaining data to receive. */
AnnaBridge 145:64910690c574 209 volatile size_t rxDataSize; /*!< Size of the remaining data to receive. */
AnnaBridge 145:64910690c574 210 size_t rxDataSizeAll; /*!< Size of the data to receive. */
AnnaBridge 145:64910690c574 211
AnnaBridge 145:64910690c574 212 uint8_t *rxRingBuffer; /*!< Start address of the receiver ring buffer. */
AnnaBridge 145:64910690c574 213 size_t rxRingBufferSize; /*!< Size of the ring buffer. */
AnnaBridge 145:64910690c574 214 volatile uint16_t rxRingBufferHead; /*!< Index for the driver to store received data into ring buffer. */
AnnaBridge 145:64910690c574 215 volatile uint16_t rxRingBufferTail; /*!< Index for the user to get data from the ring buffer. */
AnnaBridge 145:64910690c574 216
AnnaBridge 145:64910690c574 217 lpuart_transfer_callback_t callback; /*!< Callback function. */
AnnaBridge 145:64910690c574 218 void *userData; /*!< LPUART callback function parameter.*/
AnnaBridge 145:64910690c574 219
AnnaBridge 145:64910690c574 220 volatile uint8_t txState; /*!< TX transfer state. */
AnnaBridge 145:64910690c574 221 volatile uint8_t rxState; /*!< RX transfer state. */
AnnaBridge 145:64910690c574 222
AnnaBridge 145:64910690c574 223 #if defined(FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT) && FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT
AnnaBridge 145:64910690c574 224 bool isSevenDataBits; /*!< Seven data bits flag. */
AnnaBridge 145:64910690c574 225 #endif
AnnaBridge 145:64910690c574 226 };
AnnaBridge 145:64910690c574 227
AnnaBridge 145:64910690c574 228 /*******************************************************************************
AnnaBridge 145:64910690c574 229 * API
AnnaBridge 145:64910690c574 230 ******************************************************************************/
AnnaBridge 145:64910690c574 231
AnnaBridge 145:64910690c574 232 #if defined(__cplusplus)
AnnaBridge 145:64910690c574 233 extern "C" {
AnnaBridge 145:64910690c574 234 #endif /* _cplusplus */
AnnaBridge 145:64910690c574 235
AnnaBridge 145:64910690c574 236 /*!
AnnaBridge 145:64910690c574 237 * @name Initialization and deinitialization
AnnaBridge 145:64910690c574 238 * @{
AnnaBridge 145:64910690c574 239 */
AnnaBridge 145:64910690c574 240
AnnaBridge 145:64910690c574 241 /*!
AnnaBridge 145:64910690c574 242 * @brief Initializes an LPUART instance with the user configuration structure and the peripheral clock.
AnnaBridge 145:64910690c574 243 *
AnnaBridge 145:64910690c574 244 * This function configures the LPUART module with user-defined settings. Call the LPUART_GetDefaultConfig() function
AnnaBridge 145:64910690c574 245 * to configure the configuration structure and get the default configuration.
AnnaBridge 145:64910690c574 246 * The example below shows how to use this API to configure the LPUART.
AnnaBridge 145:64910690c574 247 * @code
AnnaBridge 145:64910690c574 248 * lpuart_config_t lpuartConfig;
AnnaBridge 145:64910690c574 249 * lpuartConfig.baudRate_Bps = 115200U;
AnnaBridge 145:64910690c574 250 * lpuartConfig.parityMode = kLPUART_ParityDisabled;
AnnaBridge 145:64910690c574 251 * lpuartConfig.dataBitsCount = kLPUART_EightDataBits;
AnnaBridge 145:64910690c574 252 * lpuartConfig.isMsb = false;
AnnaBridge 145:64910690c574 253 * lpuartConfig.stopBitCount = kLPUART_OneStopBit;
AnnaBridge 145:64910690c574 254 * lpuartConfig.txFifoWatermark = 0;
AnnaBridge 145:64910690c574 255 * lpuartConfig.rxFifoWatermark = 1;
AnnaBridge 145:64910690c574 256 * LPUART_Init(LPUART1, &lpuartConfig, 20000000U);
AnnaBridge 145:64910690c574 257 * @endcode
AnnaBridge 145:64910690c574 258 *
AnnaBridge 145:64910690c574 259 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 260 * @param config Pointer to a user-defined configuration structure.
AnnaBridge 145:64910690c574 261 * @param srcClock_Hz LPUART clock source frequency in HZ.
AnnaBridge 145:64910690c574 262 * @retval kStatus_LPUART_BaudrateNotSupport Baudrate is not support in current clock source.
AnnaBridge 145:64910690c574 263 * @retval kStatus_Success LPUART initialize succeed
AnnaBridge 145:64910690c574 264 */
AnnaBridge 145:64910690c574 265 status_t LPUART_Init(LPUART_Type *base, const lpuart_config_t *config, uint32_t srcClock_Hz);
AnnaBridge 145:64910690c574 266
AnnaBridge 145:64910690c574 267 /*!
AnnaBridge 145:64910690c574 268 * @brief Deinitializes a LPUART instance.
AnnaBridge 145:64910690c574 269 *
AnnaBridge 145:64910690c574 270 * This function waits for transmit to complete, disables TX and RX, and disables the LPUART clock.
AnnaBridge 145:64910690c574 271 *
AnnaBridge 145:64910690c574 272 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 273 */
AnnaBridge 145:64910690c574 274 void LPUART_Deinit(LPUART_Type *base);
AnnaBridge 145:64910690c574 275
AnnaBridge 145:64910690c574 276 /*!
AnnaBridge 145:64910690c574 277 * @brief Gets the default configuration structure.
AnnaBridge 145:64910690c574 278 *
AnnaBridge 145:64910690c574 279 * This function initializes the LPUART configuration structure to a default value. The default
AnnaBridge 145:64910690c574 280 * values are:
AnnaBridge 145:64910690c574 281 * lpuartConfig->baudRate_Bps = 115200U;
AnnaBridge 145:64910690c574 282 * lpuartConfig->parityMode = kLPUART_ParityDisabled;
AnnaBridge 145:64910690c574 283 * lpuartConfig->dataBitsCount = kLPUART_EightDataBits;
AnnaBridge 145:64910690c574 284 * lpuartConfig->isMsb = false;
AnnaBridge 145:64910690c574 285 * lpuartConfig->stopBitCount = kLPUART_OneStopBit;
AnnaBridge 145:64910690c574 286 * lpuartConfig->txFifoWatermark = 0;
AnnaBridge 145:64910690c574 287 * lpuartConfig->rxFifoWatermark = 1;
AnnaBridge 145:64910690c574 288 * lpuartConfig->enableTx = false;
AnnaBridge 145:64910690c574 289 * lpuartConfig->enableRx = false;
AnnaBridge 145:64910690c574 290 *
AnnaBridge 145:64910690c574 291 * @param config Pointer to a configuration structure.
AnnaBridge 145:64910690c574 292 */
AnnaBridge 145:64910690c574 293 void LPUART_GetDefaultConfig(lpuart_config_t *config);
AnnaBridge 145:64910690c574 294
AnnaBridge 145:64910690c574 295 /*!
AnnaBridge 145:64910690c574 296 * @brief Sets the LPUART instance baudrate.
AnnaBridge 145:64910690c574 297 *
AnnaBridge 145:64910690c574 298 * This function configures the LPUART module baudrate. This function is used to update
AnnaBridge 145:64910690c574 299 * the LPUART module baudrate after the LPUART module is initialized by the LPUART_Init.
AnnaBridge 145:64910690c574 300 * @code
AnnaBridge 145:64910690c574 301 * LPUART_SetBaudRate(LPUART1, 115200U, 20000000U);
AnnaBridge 145:64910690c574 302 * @endcode
AnnaBridge 145:64910690c574 303 *
AnnaBridge 145:64910690c574 304 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 305 * @param baudRate_Bps LPUART baudrate to be set.
AnnaBridge 145:64910690c574 306 * @param srcClock_Hz LPUART clock source frequency in HZ.
AnnaBridge 145:64910690c574 307 * @retval kStatus_LPUART_BaudrateNotSupport Baudrate is not supported in the current clock source.
AnnaBridge 145:64910690c574 308 * @retval kStatus_Success Set baudrate succeeded.
AnnaBridge 145:64910690c574 309 */
AnnaBridge 145:64910690c574 310 status_t LPUART_SetBaudRate(LPUART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz);
AnnaBridge 145:64910690c574 311
AnnaBridge 145:64910690c574 312 /* @} */
AnnaBridge 145:64910690c574 313
AnnaBridge 145:64910690c574 314 /*!
AnnaBridge 145:64910690c574 315 * @name Status
AnnaBridge 145:64910690c574 316 * @{
AnnaBridge 145:64910690c574 317 */
AnnaBridge 145:64910690c574 318
AnnaBridge 145:64910690c574 319 /*!
AnnaBridge 145:64910690c574 320 * @brief Gets LPUART status flags.
AnnaBridge 145:64910690c574 321 *
AnnaBridge 145:64910690c574 322 * This function gets all LPUART status flags. The flags are returned as the logical
AnnaBridge 145:64910690c574 323 * OR value of the enumerators @ref _lpuart_flags. To check for a specific status,
AnnaBridge 145:64910690c574 324 * compare the return value with enumerators in the @ref _lpuart_flags.
AnnaBridge 145:64910690c574 325 * For example, to check whether the TX is empty:
AnnaBridge 145:64910690c574 326 * @code
AnnaBridge 145:64910690c574 327 * if (kLPUART_TxDataRegEmptyFlag & LPUART_GetStatusFlags(LPUART1))
AnnaBridge 145:64910690c574 328 * {
AnnaBridge 145:64910690c574 329 * ...
AnnaBridge 145:64910690c574 330 * }
AnnaBridge 145:64910690c574 331 * @endcode
AnnaBridge 145:64910690c574 332 *
AnnaBridge 145:64910690c574 333 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 334 * @return LPUART status flags which are ORed by the enumerators in the _lpuart_flags.
AnnaBridge 145:64910690c574 335 */
AnnaBridge 145:64910690c574 336 uint32_t LPUART_GetStatusFlags(LPUART_Type *base);
AnnaBridge 145:64910690c574 337
AnnaBridge 145:64910690c574 338 /*!
AnnaBridge 145:64910690c574 339 * @brief Clears status flags with a provided mask.
AnnaBridge 145:64910690c574 340 *
AnnaBridge 145:64910690c574 341 * This function clears LPUART status flags with a provided mask. Automatically cleared flags
AnnaBridge 145:64910690c574 342 * can't be cleared by this function.
AnnaBridge 145:64910690c574 343 * Flags that can only cleared or set by hardware are:
AnnaBridge 145:64910690c574 344 * kLPUART_TxDataRegEmptyFlag, kLPUART_TransmissionCompleteFlag, kLPUART_RxDataRegFullFlag,
AnnaBridge 145:64910690c574 345 * kLPUART_RxActiveFlag, kLPUART_NoiseErrorInRxDataRegFlag, kLPUART_ParityErrorInRxDataRegFlag,
AnnaBridge 145:64910690c574 346 * kLPUART_TxFifoEmptyFlag,kLPUART_RxFifoEmptyFlag
AnnaBridge 145:64910690c574 347 * Note: This API should be called when the Tx/Rx is idle, otherwise it takes no effects.
AnnaBridge 145:64910690c574 348 *
AnnaBridge 145:64910690c574 349 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 350 * @param mask the status flags to be cleared. The user can use the enumerators in the
AnnaBridge 145:64910690c574 351 * _lpuart_status_flag_t to do the OR operation and get the mask.
AnnaBridge 145:64910690c574 352 * @return 0 succeed, others failed.
AnnaBridge 145:64910690c574 353 * @retval kStatus_LPUART_FlagCannotClearManually The flag can't be cleared by this function but
AnnaBridge 145:64910690c574 354 * it is cleared automatically by hardware.
AnnaBridge 145:64910690c574 355 * @retval kStatus_Success Status in the mask are cleared.
AnnaBridge 145:64910690c574 356 */
AnnaBridge 145:64910690c574 357 status_t LPUART_ClearStatusFlags(LPUART_Type *base, uint32_t mask);
AnnaBridge 145:64910690c574 358
AnnaBridge 145:64910690c574 359 /* @} */
AnnaBridge 145:64910690c574 360
AnnaBridge 145:64910690c574 361 /*!
AnnaBridge 145:64910690c574 362 * @name Interrupts
AnnaBridge 145:64910690c574 363 * @{
AnnaBridge 145:64910690c574 364 */
AnnaBridge 145:64910690c574 365
AnnaBridge 145:64910690c574 366 /*!
AnnaBridge 145:64910690c574 367 * @brief Enables LPUART interrupts according to a provided mask.
AnnaBridge 145:64910690c574 368 *
AnnaBridge 145:64910690c574 369 * This function enables the LPUART interrupts according to a provided mask. The mask
AnnaBridge 145:64910690c574 370 * is a logical OR of enumeration members. See the @ref _lpuart_interrupt_enable.
AnnaBridge 145:64910690c574 371 * This examples shows how to enable TX empty interrupt and RX full interrupt:
AnnaBridge 145:64910690c574 372 * @code
AnnaBridge 145:64910690c574 373 * LPUART_EnableInterrupts(LPUART1,kLPUART_TxDataRegEmptyInterruptEnable | kLPUART_RxDataRegFullInterruptEnable);
AnnaBridge 145:64910690c574 374 * @endcode
AnnaBridge 145:64910690c574 375 *
AnnaBridge 145:64910690c574 376 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 377 * @param mask The interrupts to enable. Logical OR of @ref _uart_interrupt_enable.
AnnaBridge 145:64910690c574 378 */
AnnaBridge 145:64910690c574 379 void LPUART_EnableInterrupts(LPUART_Type *base, uint32_t mask);
AnnaBridge 145:64910690c574 380
AnnaBridge 145:64910690c574 381 /*!
AnnaBridge 145:64910690c574 382 * @brief Disables LPUART interrupts according to a provided mask.
AnnaBridge 145:64910690c574 383 *
AnnaBridge 145:64910690c574 384 * This function disables the LPUART interrupts according to a provided mask. The mask
AnnaBridge 145:64910690c574 385 * is a logical OR of enumeration members. See @ref _lpuart_interrupt_enable.
AnnaBridge 145:64910690c574 386 * This example shows how to disable the TX empty interrupt and RX full interrupt:
AnnaBridge 145:64910690c574 387 * @code
AnnaBridge 145:64910690c574 388 * LPUART_DisableInterrupts(LPUART1,kLPUART_TxDataRegEmptyInterruptEnable | kLPUART_RxDataRegFullInterruptEnable);
AnnaBridge 145:64910690c574 389 * @endcode
AnnaBridge 145:64910690c574 390 *
AnnaBridge 145:64910690c574 391 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 392 * @param mask The interrupts to disable. Logical OR of @ref _lpuart_interrupt_enable.
AnnaBridge 145:64910690c574 393 */
AnnaBridge 145:64910690c574 394 void LPUART_DisableInterrupts(LPUART_Type *base, uint32_t mask);
AnnaBridge 145:64910690c574 395
AnnaBridge 145:64910690c574 396 /*!
AnnaBridge 145:64910690c574 397 * @brief Gets enabled LPUART interrupts.
AnnaBridge 145:64910690c574 398 *
AnnaBridge 145:64910690c574 399 * This function gets the enabled LPUART interrupts. The enabled interrupts are returned
AnnaBridge 145:64910690c574 400 * as the logical OR value of the enumerators @ref _lpuart_interrupt_enable. To check
AnnaBridge 145:64910690c574 401 * a specific interrupt enable status, compare the return value with enumerators
AnnaBridge 145:64910690c574 402 * in @ref _lpuart_interrupt_enable.
AnnaBridge 145:64910690c574 403 * For example, to check whether the TX empty interrupt is enabled:
AnnaBridge 145:64910690c574 404 * @code
AnnaBridge 145:64910690c574 405 * uint32_t enabledInterrupts = LPUART_GetEnabledInterrupts(LPUART1);
AnnaBridge 145:64910690c574 406 *
AnnaBridge 145:64910690c574 407 * if (kLPUART_TxDataRegEmptyInterruptEnable & enabledInterrupts)
AnnaBridge 145:64910690c574 408 * {
AnnaBridge 145:64910690c574 409 * ...
AnnaBridge 145:64910690c574 410 * }
AnnaBridge 145:64910690c574 411 * @endcode
AnnaBridge 145:64910690c574 412 *
AnnaBridge 145:64910690c574 413 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 414 * @return LPUART interrupt flags which are logical OR of the enumerators in @ref _lpuart_interrupt_enable.
AnnaBridge 145:64910690c574 415 */
AnnaBridge 145:64910690c574 416 uint32_t LPUART_GetEnabledInterrupts(LPUART_Type *base);
AnnaBridge 145:64910690c574 417
AnnaBridge 145:64910690c574 418 #if defined(FSL_FEATURE_LPUART_HAS_DMA_ENABLE) && FSL_FEATURE_LPUART_HAS_DMA_ENABLE
AnnaBridge 145:64910690c574 419 /*!
AnnaBridge 145:64910690c574 420 * @brief Gets the LPUART data register address.
AnnaBridge 145:64910690c574 421 *
AnnaBridge 145:64910690c574 422 * This function returns the LPUART data register address, which is mainly used by the DMA/eDMA.
AnnaBridge 145:64910690c574 423 *
AnnaBridge 145:64910690c574 424 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 425 * @return LPUART data register addresses which are used both by the transmitter and receiver.
AnnaBridge 145:64910690c574 426 */
AnnaBridge 145:64910690c574 427 static inline uint32_t LPUART_GetDataRegisterAddress(LPUART_Type *base)
AnnaBridge 145:64910690c574 428 {
AnnaBridge 145:64910690c574 429 return (uint32_t) & (base->DATA);
AnnaBridge 145:64910690c574 430 }
AnnaBridge 145:64910690c574 431
AnnaBridge 145:64910690c574 432 /*!
AnnaBridge 145:64910690c574 433 * @brief Enables or disables the LPUART transmitter DMA request.
AnnaBridge 145:64910690c574 434 *
AnnaBridge 145:64910690c574 435 * This function enables or disables the transmit data register empty flag, STAT[TDRE], to generate DMA requests.
AnnaBridge 145:64910690c574 436 *
AnnaBridge 145:64910690c574 437 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 438 * @param enable True to enable, false to disable.
AnnaBridge 145:64910690c574 439 */
AnnaBridge 145:64910690c574 440 static inline void LPUART_EnableTxDMA(LPUART_Type *base, bool enable)
AnnaBridge 145:64910690c574 441 {
AnnaBridge 145:64910690c574 442 if (enable)
AnnaBridge 145:64910690c574 443 {
AnnaBridge 145:64910690c574 444 base->BAUD |= LPUART_BAUD_TDMAE_MASK;
AnnaBridge 145:64910690c574 445 base->CTRL |= LPUART_CTRL_TIE_MASK;
AnnaBridge 145:64910690c574 446 }
AnnaBridge 145:64910690c574 447 else
AnnaBridge 145:64910690c574 448 {
AnnaBridge 145:64910690c574 449 base->BAUD &= ~LPUART_BAUD_TDMAE_MASK;
AnnaBridge 145:64910690c574 450 base->CTRL &= ~LPUART_CTRL_TIE_MASK;
AnnaBridge 145:64910690c574 451 }
AnnaBridge 145:64910690c574 452 }
AnnaBridge 145:64910690c574 453
AnnaBridge 145:64910690c574 454 /*!
AnnaBridge 145:64910690c574 455 * @brief Enables or disables the LPUART receiver DMA.
AnnaBridge 145:64910690c574 456 *
AnnaBridge 145:64910690c574 457 * This function enables or disables the receiver data register full flag, STAT[RDRF], to generate DMA requests.
AnnaBridge 145:64910690c574 458 *
AnnaBridge 145:64910690c574 459 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 460 * @param enable True to enable, false to disable.
AnnaBridge 145:64910690c574 461 */
AnnaBridge 145:64910690c574 462 static inline void LPUART_EnableRxDMA(LPUART_Type *base, bool enable)
AnnaBridge 145:64910690c574 463 {
AnnaBridge 145:64910690c574 464 if (enable)
AnnaBridge 145:64910690c574 465 {
AnnaBridge 145:64910690c574 466 base->BAUD |= LPUART_BAUD_RDMAE_MASK;
AnnaBridge 145:64910690c574 467 base->CTRL |= LPUART_CTRL_RIE_MASK;
AnnaBridge 145:64910690c574 468 }
AnnaBridge 145:64910690c574 469 else
AnnaBridge 145:64910690c574 470 {
AnnaBridge 145:64910690c574 471 base->BAUD &= ~LPUART_BAUD_RDMAE_MASK;
AnnaBridge 145:64910690c574 472 base->CTRL &= ~LPUART_CTRL_RIE_MASK;
AnnaBridge 145:64910690c574 473 }
AnnaBridge 145:64910690c574 474 }
AnnaBridge 145:64910690c574 475
AnnaBridge 145:64910690c574 476 /* @} */
AnnaBridge 145:64910690c574 477 #endif /* FSL_FEATURE_LPUART_HAS_DMA_ENABLE */
AnnaBridge 145:64910690c574 478
AnnaBridge 145:64910690c574 479 /*!
AnnaBridge 145:64910690c574 480 * @name Bus Operations
AnnaBridge 145:64910690c574 481 * @{
AnnaBridge 145:64910690c574 482 */
AnnaBridge 145:64910690c574 483
AnnaBridge 145:64910690c574 484 /*!
AnnaBridge 145:64910690c574 485 * @brief Enables or disables the LPUART transmitter.
AnnaBridge 145:64910690c574 486 *
AnnaBridge 145:64910690c574 487 * This function enables or disables the LPUART transmitter.
AnnaBridge 145:64910690c574 488 *
AnnaBridge 145:64910690c574 489 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 490 * @param enable True to enable, false to disable.
AnnaBridge 145:64910690c574 491 */
AnnaBridge 145:64910690c574 492 static inline void LPUART_EnableTx(LPUART_Type *base, bool enable)
AnnaBridge 145:64910690c574 493 {
AnnaBridge 145:64910690c574 494 if (enable)
AnnaBridge 145:64910690c574 495 {
AnnaBridge 145:64910690c574 496 base->CTRL |= LPUART_CTRL_TE_MASK;
AnnaBridge 145:64910690c574 497 }
AnnaBridge 145:64910690c574 498 else
AnnaBridge 145:64910690c574 499 {
AnnaBridge 145:64910690c574 500 base->CTRL &= ~LPUART_CTRL_TE_MASK;
AnnaBridge 145:64910690c574 501 }
AnnaBridge 145:64910690c574 502 }
AnnaBridge 145:64910690c574 503
AnnaBridge 145:64910690c574 504 /*!
AnnaBridge 145:64910690c574 505 * @brief Enables or disables the LPUART receiver.
AnnaBridge 145:64910690c574 506 *
AnnaBridge 145:64910690c574 507 * This function enables or disables the LPUART receiver.
AnnaBridge 145:64910690c574 508 *
AnnaBridge 145:64910690c574 509 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 510 * @param enable True to enable, false to disable.
AnnaBridge 145:64910690c574 511 */
AnnaBridge 145:64910690c574 512 static inline void LPUART_EnableRx(LPUART_Type *base, bool enable)
AnnaBridge 145:64910690c574 513 {
AnnaBridge 145:64910690c574 514 if (enable)
AnnaBridge 145:64910690c574 515 {
AnnaBridge 145:64910690c574 516 base->CTRL |= LPUART_CTRL_RE_MASK;
AnnaBridge 145:64910690c574 517 }
AnnaBridge 145:64910690c574 518 else
AnnaBridge 145:64910690c574 519 {
AnnaBridge 145:64910690c574 520 base->CTRL &= ~LPUART_CTRL_RE_MASK;
AnnaBridge 145:64910690c574 521 }
AnnaBridge 145:64910690c574 522 }
AnnaBridge 145:64910690c574 523
AnnaBridge 145:64910690c574 524 /*!
AnnaBridge 145:64910690c574 525 * @brief Writes to the transmitter register.
AnnaBridge 145:64910690c574 526 *
AnnaBridge 145:64910690c574 527 * This function writes data to the transmitter register directly. The upper layer must
AnnaBridge 145:64910690c574 528 * ensure that the TX register is empty or that the TX FIFO has room before calling this function.
AnnaBridge 145:64910690c574 529 *
AnnaBridge 145:64910690c574 530 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 531 * @param data Data write to the TX register.
AnnaBridge 145:64910690c574 532 */
AnnaBridge 145:64910690c574 533 static inline void LPUART_WriteByte(LPUART_Type *base, uint8_t data)
AnnaBridge 145:64910690c574 534 {
AnnaBridge 145:64910690c574 535 base->DATA = data;
AnnaBridge 145:64910690c574 536 }
AnnaBridge 145:64910690c574 537
AnnaBridge 145:64910690c574 538 /*!
AnnaBridge 145:64910690c574 539 * @brief Reads the RX register.
AnnaBridge 145:64910690c574 540 *
AnnaBridge 145:64910690c574 541 * This function reads data from the receiver register directly. The upper layer must
AnnaBridge 145:64910690c574 542 * ensure that the RX register is full or that the RX FIFO has data before calling this function.
AnnaBridge 145:64910690c574 543 *
AnnaBridge 145:64910690c574 544 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 545 * @return Data read from data register.
AnnaBridge 145:64910690c574 546 */
AnnaBridge 145:64910690c574 547 static inline uint8_t LPUART_ReadByte(LPUART_Type *base)
AnnaBridge 145:64910690c574 548 {
AnnaBridge 145:64910690c574 549 #if defined(FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT) && FSL_FEATURE_LPUART_HAS_7BIT_DATA_SUPPORT
AnnaBridge 145:64910690c574 550 uint32_t ctrl = base->CTRL;
AnnaBridge 145:64910690c574 551 bool isSevenDataBits = ((ctrl & LPUART_CTRL_M7_MASK) ||
AnnaBridge 145:64910690c574 552 ((!(ctrl & LPUART_CTRL_M7_MASK)) && (!(ctrl & LPUART_CTRL_M_MASK)) && (ctrl & LPUART_CTRL_PE_MASK)));
AnnaBridge 145:64910690c574 553
AnnaBridge 145:64910690c574 554 if (isSevenDataBits)
AnnaBridge 145:64910690c574 555 {
AnnaBridge 145:64910690c574 556 return (base->DATA & 0x7F);
AnnaBridge 145:64910690c574 557 }
AnnaBridge 145:64910690c574 558 else
AnnaBridge 145:64910690c574 559 {
AnnaBridge 145:64910690c574 560 return base->DATA;
AnnaBridge 145:64910690c574 561 }
AnnaBridge 145:64910690c574 562 #else
AnnaBridge 145:64910690c574 563 return base->DATA;
AnnaBridge 145:64910690c574 564 #endif
AnnaBridge 145:64910690c574 565 }
AnnaBridge 145:64910690c574 566
AnnaBridge 145:64910690c574 567 /*!
AnnaBridge 145:64910690c574 568 * @brief Writes to transmitter register using a blocking method.
AnnaBridge 145:64910690c574 569 *
AnnaBridge 145:64910690c574 570 * This function polls the transmitter register, waits for the register to be empty or for TX FIFO to have
AnnaBridge 145:64910690c574 571 * room and then writes data to the transmitter buffer.
AnnaBridge 145:64910690c574 572 *
AnnaBridge 145:64910690c574 573 * @note This function does not check whether all data has been sent out to the bus.
AnnaBridge 145:64910690c574 574 * Before disabling the transmitter, check the kLPUART_TransmissionCompleteFlag to ensure that the transmit is
AnnaBridge 145:64910690c574 575 * finished.
AnnaBridge 145:64910690c574 576 *
AnnaBridge 145:64910690c574 577 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 578 * @param data Start address of the data to write.
AnnaBridge 145:64910690c574 579 * @param length Size of the data to write.
AnnaBridge 145:64910690c574 580 */
AnnaBridge 145:64910690c574 581 void LPUART_WriteBlocking(LPUART_Type *base, const uint8_t *data, size_t length);
AnnaBridge 145:64910690c574 582
AnnaBridge 145:64910690c574 583 /*!
AnnaBridge 145:64910690c574 584 * @brief Reads the RX data register using a blocking method.
AnnaBridge 145:64910690c574 585 *
AnnaBridge 145:64910690c574 586 * This function polls the RX register, waits for the RX register full or RX FIFO
AnnaBridge 145:64910690c574 587 * has data then reads data from the TX register.
AnnaBridge 145:64910690c574 588 *
AnnaBridge 145:64910690c574 589 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 590 * @param data Start address of the buffer to store the received data.
AnnaBridge 145:64910690c574 591 * @param length Size of the buffer.
AnnaBridge 145:64910690c574 592 * @retval kStatus_LPUART_RxHardwareOverrun Receiver overrun happened while receiving data.
AnnaBridge 145:64910690c574 593 * @retval kStatus_LPUART_NoiseError Noise error happened while receiving data.
AnnaBridge 145:64910690c574 594 * @retval kStatus_LPUART_FramingError Framing error happened while receiving data.
AnnaBridge 145:64910690c574 595 * @retval kStatus_LPUART_ParityError Parity error happened while receiving data.
AnnaBridge 145:64910690c574 596 * @retval kStatus_Success Successfully received all data.
AnnaBridge 145:64910690c574 597 */
AnnaBridge 145:64910690c574 598 status_t LPUART_ReadBlocking(LPUART_Type *base, uint8_t *data, size_t length);
AnnaBridge 145:64910690c574 599
AnnaBridge 145:64910690c574 600 /* @} */
AnnaBridge 145:64910690c574 601
AnnaBridge 145:64910690c574 602 /*!
AnnaBridge 145:64910690c574 603 * @name Transactional
AnnaBridge 145:64910690c574 604 * @{
AnnaBridge 145:64910690c574 605 */
AnnaBridge 145:64910690c574 606
AnnaBridge 145:64910690c574 607 /*!
AnnaBridge 145:64910690c574 608 * @brief Initializes the LPUART handle.
AnnaBridge 145:64910690c574 609 *
AnnaBridge 145:64910690c574 610 * This function initializes the LPUART handle, which can be used for other LPUART
AnnaBridge 145:64910690c574 611 * transactional APIs. Usually, for a specified LPUART instance,
AnnaBridge 145:64910690c574 612 * call this API once to get the initialized handle.
AnnaBridge 145:64910690c574 613 *
AnnaBridge 145:64910690c574 614 * The LPUART driver supports the "background" receiving, which means that user can set up
AnnaBridge 145:64910690c574 615 * an RX ring buffer optionally. Data received is stored into the ring buffer even when the
AnnaBridge 145:64910690c574 616 * user doesn't call the LPUART_TransferReceiveNonBlocking() API. If there is already data received
AnnaBridge 145:64910690c574 617 * in the ring buffer, the user can get the received data from the ring buffer directly.
AnnaBridge 145:64910690c574 618 * The ring buffer is disabled if passing NULL as @p ringBuffer.
AnnaBridge 145:64910690c574 619 *
AnnaBridge 145:64910690c574 620 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 621 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 622 * @param callback Callback function.
AnnaBridge 145:64910690c574 623 * @param userData User data.
AnnaBridge 145:64910690c574 624 */
AnnaBridge 145:64910690c574 625 void LPUART_TransferCreateHandle(LPUART_Type *base,
AnnaBridge 145:64910690c574 626 lpuart_handle_t *handle,
AnnaBridge 145:64910690c574 627 lpuart_transfer_callback_t callback,
AnnaBridge 145:64910690c574 628 void *userData);
AnnaBridge 145:64910690c574 629 /*!
AnnaBridge 145:64910690c574 630 * @brief Transmits a buffer of data using the interrupt method.
AnnaBridge 145:64910690c574 631 *
AnnaBridge 145:64910690c574 632 * This function send data using an interrupt method. This is a non-blocking function, which
AnnaBridge 145:64910690c574 633 * returns directly without waiting for all data written to the transmitter register. When
AnnaBridge 145:64910690c574 634 * all data is written to the TX register in the ISR, the LPUART driver calls the callback
AnnaBridge 145:64910690c574 635 * function and passes the @ref kStatus_LPUART_TxIdle as status parameter.
AnnaBridge 145:64910690c574 636 *
AnnaBridge 145:64910690c574 637 * @note The kStatus_LPUART_TxIdle is passed to the upper layer when all data are written
AnnaBridge 145:64910690c574 638 * to the TX register. However, there is no check to ensure that all the data sent out. Before disabling the TX,
AnnaBridge 145:64910690c574 639 * check the kLPUART_TransmissionCompleteFlag to ensure that the transmit is finished.
AnnaBridge 145:64910690c574 640 *
AnnaBridge 145:64910690c574 641 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 642 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 643 * @param xfer LPUART transfer structure, see #lpuart_transfer_t.
AnnaBridge 145:64910690c574 644 * @retval kStatus_Success Successfully start the data transmission.
AnnaBridge 145:64910690c574 645 * @retval kStatus_LPUART_TxBusy Previous transmission still not finished, data not all written to the TX register.
AnnaBridge 145:64910690c574 646 * @retval kStatus_InvalidArgument Invalid argument.
AnnaBridge 145:64910690c574 647 */
AnnaBridge 145:64910690c574 648 status_t LPUART_TransferSendNonBlocking(LPUART_Type *base, lpuart_handle_t *handle, lpuart_transfer_t *xfer);
AnnaBridge 145:64910690c574 649
AnnaBridge 145:64910690c574 650 /*!
AnnaBridge 145:64910690c574 651 * @brief Sets up the RX ring buffer.
AnnaBridge 145:64910690c574 652 *
AnnaBridge 145:64910690c574 653 * This function sets up the RX ring buffer to a specific UART handle.
AnnaBridge 145:64910690c574 654 *
AnnaBridge 145:64910690c574 655 * When the RX ring buffer is used, data received is stored into the ring buffer even when
AnnaBridge 145:64910690c574 656 * the user doesn't call the UART_TransferReceiveNonBlocking() API. If there is already data received
AnnaBridge 145:64910690c574 657 * in the ring buffer, the user can get the received data from the ring buffer directly.
AnnaBridge 145:64910690c574 658 *
AnnaBridge 145:64910690c574 659 * @note When using RX ring buffer, one byte is reserved for internal use. In other
AnnaBridge 145:64910690c574 660 * words, if @p ringBufferSize is 32, then only 31 bytes are used for saving data.
AnnaBridge 145:64910690c574 661 *
AnnaBridge 145:64910690c574 662 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 663 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 664 * @param ringBuffer Start address of ring buffer for background receiving. Pass NULL to disable the ring buffer.
AnnaBridge 145:64910690c574 665 * @param ringBufferSize size of the ring buffer.
AnnaBridge 145:64910690c574 666 */
AnnaBridge 145:64910690c574 667 void LPUART_TransferStartRingBuffer(LPUART_Type *base,
AnnaBridge 145:64910690c574 668 lpuart_handle_t *handle,
AnnaBridge 145:64910690c574 669 uint8_t *ringBuffer,
AnnaBridge 145:64910690c574 670 size_t ringBufferSize);
AnnaBridge 145:64910690c574 671
AnnaBridge 145:64910690c574 672 /*!
AnnaBridge 145:64910690c574 673 * @brief Abort the background transfer and uninstall the ring buffer.
AnnaBridge 145:64910690c574 674 *
AnnaBridge 145:64910690c574 675 * This function aborts the background transfer and uninstalls the ring buffer.
AnnaBridge 145:64910690c574 676 *
AnnaBridge 145:64910690c574 677 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 678 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 679 */
AnnaBridge 145:64910690c574 680 void LPUART_TransferStopRingBuffer(LPUART_Type *base, lpuart_handle_t *handle);
AnnaBridge 145:64910690c574 681
AnnaBridge 145:64910690c574 682 /*!
AnnaBridge 145:64910690c574 683 * @brief Aborts the interrupt-driven data transmit.
AnnaBridge 145:64910690c574 684 *
AnnaBridge 145:64910690c574 685 * This function aborts the interrupt driven data sending. The user can get the remainBtyes to find out
AnnaBridge 145:64910690c574 686 * how many bytes are still not sent out.
AnnaBridge 145:64910690c574 687 *
AnnaBridge 145:64910690c574 688 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 689 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 690 */
AnnaBridge 145:64910690c574 691 void LPUART_TransferAbortSend(LPUART_Type *base, lpuart_handle_t *handle);
AnnaBridge 145:64910690c574 692
AnnaBridge 145:64910690c574 693 /*!
AnnaBridge 145:64910690c574 694 * @brief Get the number of bytes that have been written to LPUART TX register.
AnnaBridge 145:64910690c574 695 *
AnnaBridge 145:64910690c574 696 * This function gets the number of bytes that have been written to LPUART TX
AnnaBridge 145:64910690c574 697 * register by interrupt method.
AnnaBridge 145:64910690c574 698 *
AnnaBridge 145:64910690c574 699 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 700 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 701 * @param count Send bytes count.
AnnaBridge 145:64910690c574 702 * @retval kStatus_NoTransferInProgress No send in progress.
AnnaBridge 145:64910690c574 703 * @retval kStatus_InvalidArgument Parameter is invalid.
AnnaBridge 145:64910690c574 704 * @retval kStatus_Success Get successfully through the parameter \p count;
AnnaBridge 145:64910690c574 705 */
AnnaBridge 145:64910690c574 706 status_t LPUART_TransferGetSendCount(LPUART_Type *base, lpuart_handle_t *handle, uint32_t *count);
AnnaBridge 145:64910690c574 707
AnnaBridge 145:64910690c574 708 /*!
AnnaBridge 145:64910690c574 709 * @brief Receives a buffer of data using the interrupt method.
AnnaBridge 145:64910690c574 710 *
AnnaBridge 145:64910690c574 711 * This function receives data using an interrupt method. This is a non-blocking function
AnnaBridge 145:64910690c574 712 * which returns without waiting to ensure that all data are received.
AnnaBridge 145:64910690c574 713 * If the RX ring buffer is used and not empty, the data in the ring buffer is copied and
AnnaBridge 145:64910690c574 714 * the parameter @p receivedBytes shows how many bytes are copied from the ring buffer.
AnnaBridge 145:64910690c574 715 * After copying, if the data in the ring buffer is not enough for read, the receive
AnnaBridge 145:64910690c574 716 * request is saved by the LPUART driver. When the new data arrives, the receive request
AnnaBridge 145:64910690c574 717 * is serviced first. When all data is received, the LPUART driver notifies the upper layer
AnnaBridge 145:64910690c574 718 * through a callback function and passes a status parameter @ref kStatus_UART_RxIdle.
AnnaBridge 145:64910690c574 719 * For example, the upper layer needs 10 bytes but there are only 5 bytes in ring buffer.
AnnaBridge 145:64910690c574 720 * The 5 bytes are copied to xfer->data, which returns with the
AnnaBridge 145:64910690c574 721 * parameter @p receivedBytes set to 5. For the remaining 5 bytes, the newly arrived data is
AnnaBridge 145:64910690c574 722 * saved from xfer->data[5]. When 5 bytes are received, the LPUART driver notifies the upper layer.
AnnaBridge 145:64910690c574 723 * If the RX ring buffer is not enabled, this function enables the RX and RX interrupt
AnnaBridge 145:64910690c574 724 * to receive data to xfer->data. When all data is received, the upper layer is notified.
AnnaBridge 145:64910690c574 725 *
AnnaBridge 145:64910690c574 726 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 727 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 728 * @param xfer LPUART transfer structure, see #uart_transfer_t.
AnnaBridge 145:64910690c574 729 * @param receivedBytes Bytes received from the ring buffer directly.
AnnaBridge 145:64910690c574 730 * @retval kStatus_Success Successfully queue the transfer into the transmit queue.
AnnaBridge 145:64910690c574 731 * @retval kStatus_LPUART_RxBusy Previous receive request is not finished.
AnnaBridge 145:64910690c574 732 * @retval kStatus_InvalidArgument Invalid argument.
AnnaBridge 145:64910690c574 733 */
AnnaBridge 145:64910690c574 734 status_t LPUART_TransferReceiveNonBlocking(LPUART_Type *base,
AnnaBridge 145:64910690c574 735 lpuart_handle_t *handle,
AnnaBridge 145:64910690c574 736 lpuart_transfer_t *xfer,
AnnaBridge 145:64910690c574 737 size_t *receivedBytes);
AnnaBridge 145:64910690c574 738
AnnaBridge 145:64910690c574 739 /*!
AnnaBridge 145:64910690c574 740 * @brief Aborts the interrupt-driven data receiving.
AnnaBridge 145:64910690c574 741 *
AnnaBridge 145:64910690c574 742 * This function aborts the interrupt-driven data receiving. The user can get the remainBytes to find out
AnnaBridge 145:64910690c574 743 * how many bytes not received yet.
AnnaBridge 145:64910690c574 744 *
AnnaBridge 145:64910690c574 745 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 746 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 747 */
AnnaBridge 145:64910690c574 748 void LPUART_TransferAbortReceive(LPUART_Type *base, lpuart_handle_t *handle);
AnnaBridge 145:64910690c574 749
AnnaBridge 145:64910690c574 750 /*!
AnnaBridge 145:64910690c574 751 * @brief Get the number of bytes that have been received.
AnnaBridge 145:64910690c574 752 *
AnnaBridge 145:64910690c574 753 * This function gets the number of bytes that have been received.
AnnaBridge 145:64910690c574 754 *
AnnaBridge 145:64910690c574 755 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 756 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 757 * @param count Receive bytes count.
AnnaBridge 145:64910690c574 758 * @retval kStatus_NoTransferInProgress No receive in progress.
AnnaBridge 145:64910690c574 759 * @retval kStatus_InvalidArgument Parameter is invalid.
AnnaBridge 145:64910690c574 760 * @retval kStatus_Success Get successfully through the parameter \p count;
AnnaBridge 145:64910690c574 761 */
AnnaBridge 145:64910690c574 762 status_t LPUART_TransferGetReceiveCount(LPUART_Type *base, lpuart_handle_t *handle, uint32_t *count);
AnnaBridge 145:64910690c574 763
AnnaBridge 145:64910690c574 764 /*!
AnnaBridge 145:64910690c574 765 * @brief LPUART IRQ handle function.
AnnaBridge 145:64910690c574 766 *
AnnaBridge 145:64910690c574 767 * This function handles the LPUART transmit and receive IRQ request.
AnnaBridge 145:64910690c574 768 *
AnnaBridge 145:64910690c574 769 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 770 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 771 */
AnnaBridge 145:64910690c574 772 void LPUART_TransferHandleIRQ(LPUART_Type *base, lpuart_handle_t *handle);
AnnaBridge 145:64910690c574 773
AnnaBridge 145:64910690c574 774 /*!
AnnaBridge 145:64910690c574 775 * @brief LPUART Error IRQ handle function.
AnnaBridge 145:64910690c574 776 *
AnnaBridge 145:64910690c574 777 * This function handles the LPUART error IRQ request.
AnnaBridge 145:64910690c574 778 *
AnnaBridge 145:64910690c574 779 * @param base LPUART peripheral base address.
AnnaBridge 145:64910690c574 780 * @param handle LPUART handle pointer.
AnnaBridge 145:64910690c574 781 */
AnnaBridge 145:64910690c574 782 void LPUART_TransferHandleErrorIRQ(LPUART_Type *base, lpuart_handle_t *handle);
AnnaBridge 145:64910690c574 783
AnnaBridge 145:64910690c574 784 /* @} */
AnnaBridge 145:64910690c574 785
AnnaBridge 145:64910690c574 786 #if defined(__cplusplus)
AnnaBridge 145:64910690c574 787 }
AnnaBridge 145:64910690c574 788 #endif
AnnaBridge 145:64910690c574 789
AnnaBridge 145:64910690c574 790 /*! @}*/
AnnaBridge 145:64910690c574 791
AnnaBridge 145:64910690c574 792 #endif /* _FSL_LPUART_H_ */