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TARGET_RO359B/TOOLCHAIN_IAR/fsl_dspi.h@171:3a7713b1edbc, 2018-11-08 (annotated)
- Committer:
- AnnaBridge
- Date:
- Thu Nov 08 11:45:42 2018 +0000
- Revision:
- 171:3a7713b1edbc
- Parent:
- TARGET_RO359B/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K24F/drivers/fsl_dspi.h@143:86740a56073b
mbed library. Release version 164
Who changed what in which revision?
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AnnaBridge | 143:86740a56073b | 1 | /* |
AnnaBridge | 143:86740a56073b | 2 | * Copyright (c) 2015, Freescale Semiconductor, Inc. |
AnnaBridge | 143:86740a56073b | 3 | * Copyright 2016-2017 NXP |
AnnaBridge | 143:86740a56073b | 4 | * |
AnnaBridge | 143:86740a56073b | 5 | * Redistribution and use in source and binary forms, with or without modification, |
AnnaBridge | 143:86740a56073b | 6 | * are permitted provided that the following conditions are met: |
AnnaBridge | 143:86740a56073b | 7 | * |
AnnaBridge | 143:86740a56073b | 8 | * o Redistributions of source code must retain the above copyright notice, this list |
AnnaBridge | 143:86740a56073b | 9 | * of conditions and the following disclaimer. |
AnnaBridge | 143:86740a56073b | 10 | * |
AnnaBridge | 143:86740a56073b | 11 | * o Redistributions in binary form must reproduce the above copyright notice, this |
AnnaBridge | 143:86740a56073b | 12 | * list of conditions and the following disclaimer in the documentation and/or |
AnnaBridge | 143:86740a56073b | 13 | * other materials provided with the distribution. |
AnnaBridge | 143:86740a56073b | 14 | * |
AnnaBridge | 143:86740a56073b | 15 | * o Neither the name of the copyright holder nor the names of its |
AnnaBridge | 143:86740a56073b | 16 | * contributors may be used to endorse or promote products derived from this |
AnnaBridge | 143:86740a56073b | 17 | * software without specific prior written permission. |
AnnaBridge | 143:86740a56073b | 18 | * |
AnnaBridge | 143:86740a56073b | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
AnnaBridge | 143:86740a56073b | 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
AnnaBridge | 143:86740a56073b | 21 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
AnnaBridge | 143:86740a56073b | 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
AnnaBridge | 143:86740a56073b | 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
AnnaBridge | 143:86740a56073b | 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
AnnaBridge | 143:86740a56073b | 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
AnnaBridge | 143:86740a56073b | 26 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
AnnaBridge | 143:86740a56073b | 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
AnnaBridge | 143:86740a56073b | 28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
AnnaBridge | 143:86740a56073b | 29 | */ |
AnnaBridge | 143:86740a56073b | 30 | #ifndef _FSL_DSPI_H_ |
AnnaBridge | 143:86740a56073b | 31 | #define _FSL_DSPI_H_ |
AnnaBridge | 143:86740a56073b | 32 | |
AnnaBridge | 143:86740a56073b | 33 | #include "fsl_common.h" |
AnnaBridge | 143:86740a56073b | 34 | |
AnnaBridge | 143:86740a56073b | 35 | /*! |
AnnaBridge | 143:86740a56073b | 36 | * @addtogroup dspi_driver |
AnnaBridge | 143:86740a56073b | 37 | * @{ |
AnnaBridge | 143:86740a56073b | 38 | */ |
AnnaBridge | 143:86740a56073b | 39 | |
AnnaBridge | 143:86740a56073b | 40 | |
AnnaBridge | 143:86740a56073b | 41 | /********************************************************************************************************************** |
AnnaBridge | 143:86740a56073b | 42 | * Definitions |
AnnaBridge | 143:86740a56073b | 43 | *********************************************************************************************************************/ |
AnnaBridge | 143:86740a56073b | 44 | |
AnnaBridge | 143:86740a56073b | 45 | /*! @name Driver version */ |
AnnaBridge | 143:86740a56073b | 46 | /*@{*/ |
AnnaBridge | 143:86740a56073b | 47 | /*! @brief DSPI driver version 2.1.4. */ |
AnnaBridge | 143:86740a56073b | 48 | #define FSL_DSPI_DRIVER_VERSION (MAKE_VERSION(2, 1, 4)) |
AnnaBridge | 143:86740a56073b | 49 | /*@}*/ |
AnnaBridge | 143:86740a56073b | 50 | |
AnnaBridge | 143:86740a56073b | 51 | #ifndef DSPI_DUMMY_DATA |
AnnaBridge | 143:86740a56073b | 52 | /*! @brief DSPI dummy data if there is no Tx data.*/ |
AnnaBridge | 143:86740a56073b | 53 | #define DSPI_DUMMY_DATA (0x00U) /*!< Dummy data used for Tx if there is no txData. */ |
AnnaBridge | 143:86740a56073b | 54 | #endif |
AnnaBridge | 143:86740a56073b | 55 | |
AnnaBridge | 143:86740a56073b | 56 | /*! @brief Status for the DSPI driver.*/ |
AnnaBridge | 143:86740a56073b | 57 | enum _dspi_status |
AnnaBridge | 143:86740a56073b | 58 | { |
AnnaBridge | 143:86740a56073b | 59 | kStatus_DSPI_Busy = MAKE_STATUS(kStatusGroup_DSPI, 0), /*!< DSPI transfer is busy.*/ |
AnnaBridge | 143:86740a56073b | 60 | kStatus_DSPI_Error = MAKE_STATUS(kStatusGroup_DSPI, 1), /*!< DSPI driver error. */ |
AnnaBridge | 143:86740a56073b | 61 | kStatus_DSPI_Idle = MAKE_STATUS(kStatusGroup_DSPI, 2), /*!< DSPI is idle.*/ |
AnnaBridge | 143:86740a56073b | 62 | kStatus_DSPI_OutOfRange = MAKE_STATUS(kStatusGroup_DSPI, 3) /*!< DSPI transfer out of range. */ |
AnnaBridge | 143:86740a56073b | 63 | }; |
AnnaBridge | 143:86740a56073b | 64 | |
AnnaBridge | 143:86740a56073b | 65 | /*! @brief DSPI status flags in SPIx_SR register.*/ |
AnnaBridge | 143:86740a56073b | 66 | enum _dspi_flags |
AnnaBridge | 143:86740a56073b | 67 | { |
AnnaBridge | 143:86740a56073b | 68 | kDSPI_TxCompleteFlag = SPI_SR_TCF_MASK, /*!< Transfer Complete Flag. */ |
AnnaBridge | 143:86740a56073b | 69 | kDSPI_EndOfQueueFlag = SPI_SR_EOQF_MASK, /*!< End of Queue Flag.*/ |
AnnaBridge | 143:86740a56073b | 70 | kDSPI_TxFifoUnderflowFlag = SPI_SR_TFUF_MASK, /*!< Transmit FIFO Underflow Flag.*/ |
AnnaBridge | 143:86740a56073b | 71 | kDSPI_TxFifoFillRequestFlag = SPI_SR_TFFF_MASK, /*!< Transmit FIFO Fill Flag.*/ |
AnnaBridge | 143:86740a56073b | 72 | kDSPI_RxFifoOverflowFlag = SPI_SR_RFOF_MASK, /*!< Receive FIFO Overflow Flag.*/ |
AnnaBridge | 143:86740a56073b | 73 | kDSPI_RxFifoDrainRequestFlag = SPI_SR_RFDF_MASK, /*!< Receive FIFO Drain Flag.*/ |
AnnaBridge | 143:86740a56073b | 74 | kDSPI_TxAndRxStatusFlag = SPI_SR_TXRXS_MASK, /*!< The module is in Stopped/Running state.*/ |
AnnaBridge | 143:86740a56073b | 75 | kDSPI_AllStatusFlag = SPI_SR_TCF_MASK | SPI_SR_EOQF_MASK | SPI_SR_TFUF_MASK | SPI_SR_TFFF_MASK | SPI_SR_RFOF_MASK | |
AnnaBridge | 143:86740a56073b | 76 | SPI_SR_RFDF_MASK | SPI_SR_TXRXS_MASK /*!< All statuses above.*/ |
AnnaBridge | 143:86740a56073b | 77 | }; |
AnnaBridge | 143:86740a56073b | 78 | |
AnnaBridge | 143:86740a56073b | 79 | /*! @brief DSPI interrupt source.*/ |
AnnaBridge | 143:86740a56073b | 80 | enum _dspi_interrupt_enable |
AnnaBridge | 143:86740a56073b | 81 | { |
AnnaBridge | 143:86740a56073b | 82 | kDSPI_TxCompleteInterruptEnable = SPI_RSER_TCF_RE_MASK, /*!< TCF interrupt enable.*/ |
AnnaBridge | 143:86740a56073b | 83 | kDSPI_EndOfQueueInterruptEnable = SPI_RSER_EOQF_RE_MASK, /*!< EOQF interrupt enable.*/ |
AnnaBridge | 143:86740a56073b | 84 | kDSPI_TxFifoUnderflowInterruptEnable = SPI_RSER_TFUF_RE_MASK, /*!< TFUF interrupt enable.*/ |
AnnaBridge | 143:86740a56073b | 85 | kDSPI_TxFifoFillRequestInterruptEnable = SPI_RSER_TFFF_RE_MASK, /*!< TFFF interrupt enable, DMA disable.*/ |
AnnaBridge | 143:86740a56073b | 86 | kDSPI_RxFifoOverflowInterruptEnable = SPI_RSER_RFOF_RE_MASK, /*!< RFOF interrupt enable.*/ |
AnnaBridge | 143:86740a56073b | 87 | kDSPI_RxFifoDrainRequestInterruptEnable = SPI_RSER_RFDF_RE_MASK, /*!< RFDF interrupt enable, DMA disable.*/ |
AnnaBridge | 143:86740a56073b | 88 | kDSPI_AllInterruptEnable = SPI_RSER_TCF_RE_MASK | SPI_RSER_EOQF_RE_MASK | SPI_RSER_TFUF_RE_MASK | |
AnnaBridge | 143:86740a56073b | 89 | SPI_RSER_TFFF_RE_MASK | SPI_RSER_RFOF_RE_MASK | SPI_RSER_RFDF_RE_MASK |
AnnaBridge | 143:86740a56073b | 90 | /*!< All above interrupts enable.*/ |
AnnaBridge | 143:86740a56073b | 91 | }; |
AnnaBridge | 143:86740a56073b | 92 | |
AnnaBridge | 143:86740a56073b | 93 | /*! @brief DSPI DMA source.*/ |
AnnaBridge | 143:86740a56073b | 94 | enum _dspi_dma_enable |
AnnaBridge | 143:86740a56073b | 95 | { |
AnnaBridge | 143:86740a56073b | 96 | kDSPI_TxDmaEnable = (SPI_RSER_TFFF_RE_MASK | SPI_RSER_TFFF_DIRS_MASK), /*!< TFFF flag generates DMA requests. |
AnnaBridge | 143:86740a56073b | 97 | No Tx interrupt request. */ |
AnnaBridge | 143:86740a56073b | 98 | kDSPI_RxDmaEnable = (SPI_RSER_RFDF_RE_MASK | SPI_RSER_RFDF_DIRS_MASK) /*!< RFDF flag generates DMA requests. |
AnnaBridge | 143:86740a56073b | 99 | No Rx interrupt request. */ |
AnnaBridge | 143:86740a56073b | 100 | }; |
AnnaBridge | 143:86740a56073b | 101 | |
AnnaBridge | 143:86740a56073b | 102 | /*! @brief DSPI master or slave mode configuration.*/ |
AnnaBridge | 143:86740a56073b | 103 | typedef enum _dspi_master_slave_mode |
AnnaBridge | 143:86740a56073b | 104 | { |
AnnaBridge | 143:86740a56073b | 105 | kDSPI_Master = 1U, /*!< DSPI peripheral operates in master mode.*/ |
AnnaBridge | 143:86740a56073b | 106 | kDSPI_Slave = 0U /*!< DSPI peripheral operates in slave mode.*/ |
AnnaBridge | 143:86740a56073b | 107 | } dspi_master_slave_mode_t; |
AnnaBridge | 143:86740a56073b | 108 | |
AnnaBridge | 143:86740a56073b | 109 | /*! |
AnnaBridge | 143:86740a56073b | 110 | * @brief DSPI Sample Point: Controls when the DSPI master samples SIN in the Modified Transfer Format. This field is valid |
AnnaBridge | 143:86740a56073b | 111 | * only when the CPHA bit in the CTAR register is 0. |
AnnaBridge | 143:86740a56073b | 112 | */ |
AnnaBridge | 143:86740a56073b | 113 | typedef enum _dspi_master_sample_point |
AnnaBridge | 143:86740a56073b | 114 | { |
AnnaBridge | 143:86740a56073b | 115 | kDSPI_SckToSin0Clock = 0U, /*!< 0 system clocks between SCK edge and SIN sample.*/ |
AnnaBridge | 143:86740a56073b | 116 | kDSPI_SckToSin1Clock = 1U, /*!< 1 system clock between SCK edge and SIN sample.*/ |
AnnaBridge | 143:86740a56073b | 117 | kDSPI_SckToSin2Clock = 2U /*!< 2 system clocks between SCK edge and SIN sample.*/ |
AnnaBridge | 143:86740a56073b | 118 | } dspi_master_sample_point_t; |
AnnaBridge | 143:86740a56073b | 119 | |
AnnaBridge | 143:86740a56073b | 120 | /*! @brief DSPI Peripheral Chip Select (Pcs) configuration (which Pcs to configure).*/ |
AnnaBridge | 143:86740a56073b | 121 | typedef enum _dspi_which_pcs_config |
AnnaBridge | 143:86740a56073b | 122 | { |
AnnaBridge | 143:86740a56073b | 123 | kDSPI_Pcs0 = 1U << 0, /*!< Pcs[0] */ |
AnnaBridge | 143:86740a56073b | 124 | kDSPI_Pcs1 = 1U << 1, /*!< Pcs[1] */ |
AnnaBridge | 143:86740a56073b | 125 | kDSPI_Pcs2 = 1U << 2, /*!< Pcs[2] */ |
AnnaBridge | 143:86740a56073b | 126 | kDSPI_Pcs3 = 1U << 3, /*!< Pcs[3] */ |
AnnaBridge | 143:86740a56073b | 127 | kDSPI_Pcs4 = 1U << 4, /*!< Pcs[4] */ |
AnnaBridge | 143:86740a56073b | 128 | kDSPI_Pcs5 = 1U << 5 /*!< Pcs[5] */ |
AnnaBridge | 143:86740a56073b | 129 | } dspi_which_pcs_t; |
AnnaBridge | 143:86740a56073b | 130 | |
AnnaBridge | 143:86740a56073b | 131 | /*! @brief DSPI Peripheral Chip Select (Pcs) Polarity configuration.*/ |
AnnaBridge | 143:86740a56073b | 132 | typedef enum _dspi_pcs_polarity_config |
AnnaBridge | 143:86740a56073b | 133 | { |
AnnaBridge | 143:86740a56073b | 134 | kDSPI_PcsActiveHigh = 0U, /*!< Pcs Active High (idles low). */ |
AnnaBridge | 143:86740a56073b | 135 | kDSPI_PcsActiveLow = 1U /*!< Pcs Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 136 | } dspi_pcs_polarity_config_t; |
AnnaBridge | 143:86740a56073b | 137 | |
AnnaBridge | 143:86740a56073b | 138 | /*! @brief DSPI Peripheral Chip Select (Pcs) Polarity.*/ |
AnnaBridge | 143:86740a56073b | 139 | enum _dspi_pcs_polarity |
AnnaBridge | 143:86740a56073b | 140 | { |
AnnaBridge | 143:86740a56073b | 141 | kDSPI_Pcs0ActiveLow = 1U << 0, /*!< Pcs0 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 142 | kDSPI_Pcs1ActiveLow = 1U << 1, /*!< Pcs1 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 143 | kDSPI_Pcs2ActiveLow = 1U << 2, /*!< Pcs2 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 144 | kDSPI_Pcs3ActiveLow = 1U << 3, /*!< Pcs3 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 145 | kDSPI_Pcs4ActiveLow = 1U << 4, /*!< Pcs4 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 146 | kDSPI_Pcs5ActiveLow = 1U << 5, /*!< Pcs5 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 147 | kDSPI_PcsAllActiveLow = 0xFFU /*!< Pcs0 to Pcs5 Active Low (idles high). */ |
AnnaBridge | 143:86740a56073b | 148 | }; |
AnnaBridge | 143:86740a56073b | 149 | |
AnnaBridge | 143:86740a56073b | 150 | /*! @brief DSPI clock polarity configuration for a given CTAR.*/ |
AnnaBridge | 143:86740a56073b | 151 | typedef enum _dspi_clock_polarity |
AnnaBridge | 143:86740a56073b | 152 | { |
AnnaBridge | 143:86740a56073b | 153 | kDSPI_ClockPolarityActiveHigh = 0U, /*!< CPOL=0. Active-high DSPI clock (idles low).*/ |
AnnaBridge | 143:86740a56073b | 154 | kDSPI_ClockPolarityActiveLow = 1U /*!< CPOL=1. Active-low DSPI clock (idles high).*/ |
AnnaBridge | 143:86740a56073b | 155 | } dspi_clock_polarity_t; |
AnnaBridge | 143:86740a56073b | 156 | |
AnnaBridge | 143:86740a56073b | 157 | /*! @brief DSPI clock phase configuration for a given CTAR.*/ |
AnnaBridge | 143:86740a56073b | 158 | typedef enum _dspi_clock_phase |
AnnaBridge | 143:86740a56073b | 159 | { |
AnnaBridge | 143:86740a56073b | 160 | kDSPI_ClockPhaseFirstEdge = 0U, /*!< CPHA=0. Data is captured on the leading edge of the SCK and changed on the |
AnnaBridge | 143:86740a56073b | 161 | following edge.*/ |
AnnaBridge | 143:86740a56073b | 162 | kDSPI_ClockPhaseSecondEdge = 1U /*!< CPHA=1. Data is changed on the leading edge of the SCK and captured on the |
AnnaBridge | 143:86740a56073b | 163 | following edge.*/ |
AnnaBridge | 143:86740a56073b | 164 | } dspi_clock_phase_t; |
AnnaBridge | 143:86740a56073b | 165 | |
AnnaBridge | 143:86740a56073b | 166 | /*! @brief DSPI data shifter direction options for a given CTAR.*/ |
AnnaBridge | 143:86740a56073b | 167 | typedef enum _dspi_shift_direction |
AnnaBridge | 143:86740a56073b | 168 | { |
AnnaBridge | 143:86740a56073b | 169 | kDSPI_MsbFirst = 0U, /*!< Data transfers start with most significant bit.*/ |
AnnaBridge | 143:86740a56073b | 170 | kDSPI_LsbFirst = 1U /*!< Data transfers start with least significant bit. |
AnnaBridge | 143:86740a56073b | 171 | Shifting out of LSB is not supported for slave */ |
AnnaBridge | 143:86740a56073b | 172 | } dspi_shift_direction_t; |
AnnaBridge | 143:86740a56073b | 173 | |
AnnaBridge | 143:86740a56073b | 174 | /*! @brief DSPI delay type selection.*/ |
AnnaBridge | 143:86740a56073b | 175 | typedef enum _dspi_delay_type |
AnnaBridge | 143:86740a56073b | 176 | { |
AnnaBridge | 143:86740a56073b | 177 | kDSPI_PcsToSck = 1U, /*!< Pcs-to-SCK delay. */ |
AnnaBridge | 143:86740a56073b | 178 | kDSPI_LastSckToPcs, /*!< The last SCK edge to Pcs delay. */ |
AnnaBridge | 143:86740a56073b | 179 | kDSPI_BetweenTransfer /*!< Delay between transfers. */ |
AnnaBridge | 143:86740a56073b | 180 | } dspi_delay_type_t; |
AnnaBridge | 143:86740a56073b | 181 | |
AnnaBridge | 143:86740a56073b | 182 | /*! @brief DSPI Clock and Transfer Attributes Register (CTAR) selection.*/ |
AnnaBridge | 143:86740a56073b | 183 | typedef enum _dspi_ctar_selection |
AnnaBridge | 143:86740a56073b | 184 | { |
AnnaBridge | 143:86740a56073b | 185 | kDSPI_Ctar0 = 0U, /*!< CTAR0 selection option for master or slave mode; note that CTAR0 and CTAR0_SLAVE are the |
AnnaBridge | 143:86740a56073b | 186 | same register address. */ |
AnnaBridge | 143:86740a56073b | 187 | kDSPI_Ctar1 = 1U, /*!< CTAR1 selection option for master mode only. */ |
AnnaBridge | 143:86740a56073b | 188 | kDSPI_Ctar2 = 2U, /*!< CTAR2 selection option for master mode only; note that some devices do not support CTAR2. */ |
AnnaBridge | 143:86740a56073b | 189 | kDSPI_Ctar3 = 3U, /*!< CTAR3 selection option for master mode only; note that some devices do not support CTAR3. */ |
AnnaBridge | 143:86740a56073b | 190 | kDSPI_Ctar4 = 4U, /*!< CTAR4 selection option for master mode only; note that some devices do not support CTAR4. */ |
AnnaBridge | 143:86740a56073b | 191 | kDSPI_Ctar5 = 5U, /*!< CTAR5 selection option for master mode only; note that some devices do not support CTAR5. */ |
AnnaBridge | 143:86740a56073b | 192 | kDSPI_Ctar6 = 6U, /*!< CTAR6 selection option for master mode only; note that some devices do not support CTAR6. */ |
AnnaBridge | 143:86740a56073b | 193 | kDSPI_Ctar7 = 7U /*!< CTAR7 selection option for master mode only; note that some devices do not support CTAR7. */ |
AnnaBridge | 143:86740a56073b | 194 | } dspi_ctar_selection_t; |
AnnaBridge | 143:86740a56073b | 195 | |
AnnaBridge | 143:86740a56073b | 196 | #define DSPI_MASTER_CTAR_SHIFT (0U) /*!< DSPI master CTAR shift macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 197 | #define DSPI_MASTER_CTAR_MASK (0x0FU) /*!< DSPI master CTAR mask macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 198 | #define DSPI_MASTER_PCS_SHIFT (4U) /*!< DSPI master PCS shift macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 199 | #define DSPI_MASTER_PCS_MASK (0xF0U) /*!< DSPI master PCS mask macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 200 | /*! @brief Use this enumeration for the DSPI master transfer configFlags. */ |
AnnaBridge | 143:86740a56073b | 201 | enum _dspi_transfer_config_flag_for_master |
AnnaBridge | 143:86740a56073b | 202 | { |
AnnaBridge | 143:86740a56073b | 203 | kDSPI_MasterCtar0 = 0U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR0 setting. */ |
AnnaBridge | 143:86740a56073b | 204 | kDSPI_MasterCtar1 = 1U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR1 setting. */ |
AnnaBridge | 143:86740a56073b | 205 | kDSPI_MasterCtar2 = 2U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR2 setting. */ |
AnnaBridge | 143:86740a56073b | 206 | kDSPI_MasterCtar3 = 3U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR3 setting. */ |
AnnaBridge | 143:86740a56073b | 207 | kDSPI_MasterCtar4 = 4U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR4 setting. */ |
AnnaBridge | 143:86740a56073b | 208 | kDSPI_MasterCtar5 = 5U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR5 setting. */ |
AnnaBridge | 143:86740a56073b | 209 | kDSPI_MasterCtar6 = 6U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR6 setting. */ |
AnnaBridge | 143:86740a56073b | 210 | kDSPI_MasterCtar7 = 7U << DSPI_MASTER_CTAR_SHIFT, /*!< DSPI master transfer use CTAR7 setting. */ |
AnnaBridge | 143:86740a56073b | 211 | |
AnnaBridge | 143:86740a56073b | 212 | kDSPI_MasterPcs0 = 0U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS0 signal. */ |
AnnaBridge | 143:86740a56073b | 213 | kDSPI_MasterPcs1 = 1U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS1 signal. */ |
AnnaBridge | 143:86740a56073b | 214 | kDSPI_MasterPcs2 = 2U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS2 signal.*/ |
AnnaBridge | 143:86740a56073b | 215 | kDSPI_MasterPcs3 = 3U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS3 signal. */ |
AnnaBridge | 143:86740a56073b | 216 | kDSPI_MasterPcs4 = 4U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS4 signal. */ |
AnnaBridge | 143:86740a56073b | 217 | kDSPI_MasterPcs5 = 5U << DSPI_MASTER_PCS_SHIFT, /*!< DSPI master transfer use PCS5 signal. */ |
AnnaBridge | 143:86740a56073b | 218 | |
AnnaBridge | 143:86740a56073b | 219 | kDSPI_MasterPcsContinuous = 1U << 20, /*!< Indicates whether the PCS signal is continuous. */ |
AnnaBridge | 143:86740a56073b | 220 | kDSPI_MasterActiveAfterTransfer = 1U << 21, /*!< Indicates whether the PCS signal is active after the last frame transfer.*/ |
AnnaBridge | 143:86740a56073b | 221 | }; |
AnnaBridge | 143:86740a56073b | 222 | |
AnnaBridge | 143:86740a56073b | 223 | #define DSPI_SLAVE_CTAR_SHIFT (0U) /*!< DSPI slave CTAR shift macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 224 | #define DSPI_SLAVE_CTAR_MASK (0x07U) /*!< DSPI slave CTAR mask macro; used internally. */ |
AnnaBridge | 143:86740a56073b | 225 | /*! @brief Use this enumeration for the DSPI slave transfer configFlags. */ |
AnnaBridge | 143:86740a56073b | 226 | enum _dspi_transfer_config_flag_for_slave |
AnnaBridge | 143:86740a56073b | 227 | { |
AnnaBridge | 143:86740a56073b | 228 | kDSPI_SlaveCtar0 = 0U << DSPI_SLAVE_CTAR_SHIFT, /*!< DSPI slave transfer use CTAR0 setting. */ |
AnnaBridge | 143:86740a56073b | 229 | /*!< DSPI slave can only use PCS0. */ |
AnnaBridge | 143:86740a56073b | 230 | }; |
AnnaBridge | 143:86740a56073b | 231 | |
AnnaBridge | 143:86740a56073b | 232 | /*! @brief DSPI transfer state, which is used for DSPI transactional API state machine. */ |
AnnaBridge | 143:86740a56073b | 233 | enum _dspi_transfer_state |
AnnaBridge | 143:86740a56073b | 234 | { |
AnnaBridge | 143:86740a56073b | 235 | kDSPI_Idle = 0x0U, /*!< Nothing in the transmitter/receiver. */ |
AnnaBridge | 143:86740a56073b | 236 | kDSPI_Busy, /*!< Transfer queue is not finished. */ |
AnnaBridge | 143:86740a56073b | 237 | kDSPI_Error /*!< Transfer error. */ |
AnnaBridge | 143:86740a56073b | 238 | }; |
AnnaBridge | 143:86740a56073b | 239 | |
AnnaBridge | 143:86740a56073b | 240 | /*! @brief DSPI master command date configuration used for the SPIx_PUSHR.*/ |
AnnaBridge | 143:86740a56073b | 241 | typedef struct _dspi_command_data_config |
AnnaBridge | 143:86740a56073b | 242 | { |
AnnaBridge | 143:86740a56073b | 243 | bool isPcsContinuous; /*!< Option to enable the continuous assertion of the chip select between transfers.*/ |
AnnaBridge | 143:86740a56073b | 244 | dspi_ctar_selection_t whichCtar; /*!< The desired Clock and Transfer Attributes |
AnnaBridge | 143:86740a56073b | 245 | Register (CTAR) to use for CTAS.*/ |
AnnaBridge | 143:86740a56073b | 246 | dspi_which_pcs_t whichPcs; /*!< The desired PCS signal to use for the data transfer.*/ |
AnnaBridge | 143:86740a56073b | 247 | bool isEndOfQueue; /*!< Signals that the current transfer is the last in the queue.*/ |
AnnaBridge | 143:86740a56073b | 248 | bool clearTransferCount; /*!< Clears the SPI Transfer Counter (SPI_TCNT) before transmission starts.*/ |
AnnaBridge | 143:86740a56073b | 249 | } dspi_command_data_config_t; |
AnnaBridge | 143:86740a56073b | 250 | |
AnnaBridge | 143:86740a56073b | 251 | /*! @brief DSPI master ctar configuration structure.*/ |
AnnaBridge | 143:86740a56073b | 252 | typedef struct _dspi_master_ctar_config |
AnnaBridge | 143:86740a56073b | 253 | { |
AnnaBridge | 143:86740a56073b | 254 | uint32_t baudRate; /*!< Baud Rate for DSPI. */ |
AnnaBridge | 143:86740a56073b | 255 | uint32_t bitsPerFrame; /*!< Bits per frame, minimum 4, maximum 16.*/ |
AnnaBridge | 143:86740a56073b | 256 | dspi_clock_polarity_t cpol; /*!< Clock polarity. */ |
AnnaBridge | 143:86740a56073b | 257 | dspi_clock_phase_t cpha; /*!< Clock phase. */ |
AnnaBridge | 143:86740a56073b | 258 | dspi_shift_direction_t direction; /*!< MSB or LSB data shift direction. */ |
AnnaBridge | 143:86740a56073b | 259 | |
AnnaBridge | 143:86740a56073b | 260 | uint32_t pcsToSckDelayInNanoSec; /*!< PCS to SCK delay time in nanoseconds; setting to 0 sets the minimum |
AnnaBridge | 143:86740a56073b | 261 | delay. It also sets the boundary value if out of range.*/ |
AnnaBridge | 143:86740a56073b | 262 | uint32_t lastSckToPcsDelayInNanoSec; /*!< The last SCK to PCS delay time in nanoseconds; setting to 0 sets the |
AnnaBridge | 143:86740a56073b | 263 | minimum delay. It also sets the boundary value if out of range.*/ |
AnnaBridge | 143:86740a56073b | 264 | |
AnnaBridge | 143:86740a56073b | 265 | uint32_t betweenTransferDelayInNanoSec; /*!< After the SCK delay time in nanoseconds; setting to 0 sets the minimum |
AnnaBridge | 143:86740a56073b | 266 | delay. It also sets the boundary value if out of range.*/ |
AnnaBridge | 143:86740a56073b | 267 | } dspi_master_ctar_config_t; |
AnnaBridge | 143:86740a56073b | 268 | |
AnnaBridge | 143:86740a56073b | 269 | /*! @brief DSPI master configuration structure.*/ |
AnnaBridge | 143:86740a56073b | 270 | typedef struct _dspi_master_config |
AnnaBridge | 143:86740a56073b | 271 | { |
AnnaBridge | 143:86740a56073b | 272 | dspi_ctar_selection_t whichCtar; /*!< The desired CTAR to use. */ |
AnnaBridge | 143:86740a56073b | 273 | dspi_master_ctar_config_t ctarConfig; /*!< Set the ctarConfig to the desired CTAR. */ |
AnnaBridge | 143:86740a56073b | 274 | |
AnnaBridge | 143:86740a56073b | 275 | dspi_which_pcs_t whichPcs; /*!< The desired Peripheral Chip Select (pcs). */ |
AnnaBridge | 143:86740a56073b | 276 | dspi_pcs_polarity_config_t pcsActiveHighOrLow; /*!< The desired PCS active high or low. */ |
AnnaBridge | 143:86740a56073b | 277 | |
AnnaBridge | 143:86740a56073b | 278 | bool enableContinuousSCK; /*!< CONT_SCKE, continuous SCK enable. Note that the continuous SCK is only |
AnnaBridge | 143:86740a56073b | 279 | supported for CPHA = 1.*/ |
AnnaBridge | 143:86740a56073b | 280 | bool enableRxFifoOverWrite; /*!< ROOE, receive FIFO overflow overwrite enable. If ROOE = 0, the incoming |
AnnaBridge | 143:86740a56073b | 281 | data is ignored and the data from the transfer that generated the overflow |
AnnaBridge | 143:86740a56073b | 282 | is also ignored. If ROOE = 1, the incoming data is shifted to the |
AnnaBridge | 143:86740a56073b | 283 | shift register. */ |
AnnaBridge | 143:86740a56073b | 284 | |
AnnaBridge | 143:86740a56073b | 285 | bool enableModifiedTimingFormat; /*!< Enables a modified transfer format to be used if true.*/ |
AnnaBridge | 143:86740a56073b | 286 | dspi_master_sample_point_t samplePoint; /*!< Controls when the module master samples SIN in the Modified Transfer |
AnnaBridge | 143:86740a56073b | 287 | Format. It's valid only when CPHA=0. */ |
AnnaBridge | 143:86740a56073b | 288 | } dspi_master_config_t; |
AnnaBridge | 143:86740a56073b | 289 | |
AnnaBridge | 143:86740a56073b | 290 | /*! @brief DSPI slave ctar configuration structure.*/ |
AnnaBridge | 143:86740a56073b | 291 | typedef struct _dspi_slave_ctar_config |
AnnaBridge | 143:86740a56073b | 292 | { |
AnnaBridge | 143:86740a56073b | 293 | uint32_t bitsPerFrame; /*!< Bits per frame, minimum 4, maximum 16.*/ |
AnnaBridge | 143:86740a56073b | 294 | dspi_clock_polarity_t cpol; /*!< Clock polarity. */ |
AnnaBridge | 143:86740a56073b | 295 | dspi_clock_phase_t cpha; /*!< Clock phase. */ |
AnnaBridge | 143:86740a56073b | 296 | /*!< Slave only supports MSB and does not support LSB.*/ |
AnnaBridge | 143:86740a56073b | 297 | } dspi_slave_ctar_config_t; |
AnnaBridge | 143:86740a56073b | 298 | |
AnnaBridge | 143:86740a56073b | 299 | /*! @brief DSPI slave configuration structure.*/ |
AnnaBridge | 143:86740a56073b | 300 | typedef struct _dspi_slave_config |
AnnaBridge | 143:86740a56073b | 301 | { |
AnnaBridge | 143:86740a56073b | 302 | dspi_ctar_selection_t whichCtar; /*!< The desired CTAR to use. */ |
AnnaBridge | 143:86740a56073b | 303 | dspi_slave_ctar_config_t ctarConfig; /*!< Set the ctarConfig to the desired CTAR. */ |
AnnaBridge | 143:86740a56073b | 304 | |
AnnaBridge | 143:86740a56073b | 305 | bool enableContinuousSCK; /*!< CONT_SCKE, continuous SCK enable. Note that the continuous SCK is only |
AnnaBridge | 143:86740a56073b | 306 | supported for CPHA = 1.*/ |
AnnaBridge | 143:86740a56073b | 307 | bool enableRxFifoOverWrite; /*!< ROOE, receive FIFO overflow overwrite enable. If ROOE = 0, the incoming |
AnnaBridge | 143:86740a56073b | 308 | data is ignored and the data from the transfer that generated the overflow |
AnnaBridge | 143:86740a56073b | 309 | is also ignored. If ROOE = 1, the incoming data is shifted to the |
AnnaBridge | 143:86740a56073b | 310 | shift register. */ |
AnnaBridge | 143:86740a56073b | 311 | bool enableModifiedTimingFormat; /*!< Enables a modified transfer format to be used if true.*/ |
AnnaBridge | 143:86740a56073b | 312 | dspi_master_sample_point_t samplePoint; /*!< Controls when the module master samples SIN in the Modified Transfer |
AnnaBridge | 143:86740a56073b | 313 | Format. It's valid only when CPHA=0. */ |
AnnaBridge | 143:86740a56073b | 314 | } dspi_slave_config_t; |
AnnaBridge | 143:86740a56073b | 315 | |
AnnaBridge | 143:86740a56073b | 316 | /*! |
AnnaBridge | 143:86740a56073b | 317 | * @brief Forward declaration of the _dspi_master_handle typedefs. |
AnnaBridge | 143:86740a56073b | 318 | */ |
AnnaBridge | 143:86740a56073b | 319 | typedef struct _dspi_master_handle dspi_master_handle_t; |
AnnaBridge | 143:86740a56073b | 320 | |
AnnaBridge | 143:86740a56073b | 321 | /*! |
AnnaBridge | 143:86740a56073b | 322 | * @brief Forward declaration of the _dspi_slave_handle typedefs. |
AnnaBridge | 143:86740a56073b | 323 | */ |
AnnaBridge | 143:86740a56073b | 324 | typedef struct _dspi_slave_handle dspi_slave_handle_t; |
AnnaBridge | 143:86740a56073b | 325 | |
AnnaBridge | 143:86740a56073b | 326 | /*! |
AnnaBridge | 143:86740a56073b | 327 | * @brief Completion callback function pointer type. |
AnnaBridge | 143:86740a56073b | 328 | * |
AnnaBridge | 143:86740a56073b | 329 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 330 | * @param handle Pointer to the handle for the DSPI master. |
AnnaBridge | 143:86740a56073b | 331 | * @param status Success or error code describing whether the transfer completed. |
AnnaBridge | 143:86740a56073b | 332 | * @param userData Arbitrary pointer-dataSized value passed from the application. |
AnnaBridge | 143:86740a56073b | 333 | */ |
AnnaBridge | 143:86740a56073b | 334 | typedef void (*dspi_master_transfer_callback_t)(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 335 | dspi_master_handle_t *handle, |
AnnaBridge | 143:86740a56073b | 336 | status_t status, |
AnnaBridge | 143:86740a56073b | 337 | void *userData); |
AnnaBridge | 143:86740a56073b | 338 | /*! |
AnnaBridge | 143:86740a56073b | 339 | * @brief Completion callback function pointer type. |
AnnaBridge | 143:86740a56073b | 340 | * |
AnnaBridge | 143:86740a56073b | 341 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 342 | * @param handle Pointer to the handle for the DSPI slave. |
AnnaBridge | 143:86740a56073b | 343 | * @param status Success or error code describing whether the transfer completed. |
AnnaBridge | 143:86740a56073b | 344 | * @param userData Arbitrary pointer-dataSized value passed from the application. |
AnnaBridge | 143:86740a56073b | 345 | */ |
AnnaBridge | 143:86740a56073b | 346 | typedef void (*dspi_slave_transfer_callback_t)(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 347 | dspi_slave_handle_t *handle, |
AnnaBridge | 143:86740a56073b | 348 | status_t status, |
AnnaBridge | 143:86740a56073b | 349 | void *userData); |
AnnaBridge | 143:86740a56073b | 350 | |
AnnaBridge | 143:86740a56073b | 351 | /*! @brief DSPI master/slave transfer structure.*/ |
AnnaBridge | 143:86740a56073b | 352 | typedef struct _dspi_transfer |
AnnaBridge | 143:86740a56073b | 353 | { |
AnnaBridge | 143:86740a56073b | 354 | uint8_t *txData; /*!< Send buffer. */ |
AnnaBridge | 143:86740a56073b | 355 | uint8_t *rxData; /*!< Receive buffer. */ |
AnnaBridge | 143:86740a56073b | 356 | volatile size_t dataSize; /*!< Transfer bytes. */ |
AnnaBridge | 143:86740a56073b | 357 | |
AnnaBridge | 143:86740a56073b | 358 | uint32_t |
AnnaBridge | 143:86740a56073b | 359 | configFlags; /*!< Transfer transfer configuration flags; set from _dspi_transfer_config_flag_for_master if the |
AnnaBridge | 143:86740a56073b | 360 | transfer is used for master or _dspi_transfer_config_flag_for_slave enumeration if the transfer |
AnnaBridge | 143:86740a56073b | 361 | is used for slave.*/ |
AnnaBridge | 143:86740a56073b | 362 | } dspi_transfer_t; |
AnnaBridge | 143:86740a56073b | 363 | |
AnnaBridge | 143:86740a56073b | 364 | /*! @brief DSPI master transfer handle structure used for transactional API. */ |
AnnaBridge | 143:86740a56073b | 365 | struct _dspi_master_handle |
AnnaBridge | 143:86740a56073b | 366 | { |
AnnaBridge | 143:86740a56073b | 367 | uint32_t bitsPerFrame; /*!< The desired number of bits per frame. */ |
AnnaBridge | 143:86740a56073b | 368 | volatile uint32_t command; /*!< The desired data command. */ |
AnnaBridge | 143:86740a56073b | 369 | volatile uint32_t lastCommand; /*!< The desired last data command. */ |
AnnaBridge | 143:86740a56073b | 370 | |
AnnaBridge | 143:86740a56073b | 371 | uint8_t fifoSize; /*!< FIFO dataSize. */ |
AnnaBridge | 143:86740a56073b | 372 | |
AnnaBridge | 143:86740a56073b | 373 | volatile bool isPcsActiveAfterTransfer; /*!< Indicates whether the PCS signal is active after the last frame transfer.*/ |
AnnaBridge | 143:86740a56073b | 374 | volatile bool isThereExtraByte; /*!< Indicates whether there are extra bytes.*/ |
AnnaBridge | 143:86740a56073b | 375 | |
AnnaBridge | 143:86740a56073b | 376 | uint8_t *volatile txData; /*!< Send buffer. */ |
AnnaBridge | 143:86740a56073b | 377 | uint8_t *volatile rxData; /*!< Receive buffer. */ |
AnnaBridge | 143:86740a56073b | 378 | volatile size_t remainingSendByteCount; /*!< A number of bytes remaining to send.*/ |
AnnaBridge | 143:86740a56073b | 379 | volatile size_t remainingReceiveByteCount; /*!< A number of bytes remaining to receive.*/ |
AnnaBridge | 143:86740a56073b | 380 | size_t totalByteCount; /*!< A number of transfer bytes*/ |
AnnaBridge | 143:86740a56073b | 381 | |
AnnaBridge | 143:86740a56073b | 382 | volatile uint8_t state; /*!< DSPI transfer state, see _dspi_transfer_state.*/ |
AnnaBridge | 143:86740a56073b | 383 | |
AnnaBridge | 143:86740a56073b | 384 | dspi_master_transfer_callback_t callback; /*!< Completion callback. */ |
AnnaBridge | 143:86740a56073b | 385 | void *userData; /*!< Callback user data. */ |
AnnaBridge | 143:86740a56073b | 386 | }; |
AnnaBridge | 143:86740a56073b | 387 | |
AnnaBridge | 143:86740a56073b | 388 | /*! @brief DSPI slave transfer handle structure used for the transactional API. */ |
AnnaBridge | 143:86740a56073b | 389 | struct _dspi_slave_handle |
AnnaBridge | 143:86740a56073b | 390 | { |
AnnaBridge | 143:86740a56073b | 391 | uint32_t bitsPerFrame; /*!< The desired number of bits per frame. */ |
AnnaBridge | 143:86740a56073b | 392 | volatile bool isThereExtraByte; /*!< Indicates whether there are extra bytes.*/ |
AnnaBridge | 143:86740a56073b | 393 | |
AnnaBridge | 143:86740a56073b | 394 | uint8_t *volatile txData; /*!< Send buffer. */ |
AnnaBridge | 143:86740a56073b | 395 | uint8_t *volatile rxData; /*!< Receive buffer. */ |
AnnaBridge | 143:86740a56073b | 396 | volatile size_t remainingSendByteCount; /*!< A number of bytes remaining to send.*/ |
AnnaBridge | 143:86740a56073b | 397 | volatile size_t remainingReceiveByteCount; /*!< A number of bytes remaining to receive.*/ |
AnnaBridge | 143:86740a56073b | 398 | size_t totalByteCount; /*!< A number of transfer bytes*/ |
AnnaBridge | 143:86740a56073b | 399 | |
AnnaBridge | 143:86740a56073b | 400 | volatile uint8_t state; /*!< DSPI transfer state.*/ |
AnnaBridge | 143:86740a56073b | 401 | |
AnnaBridge | 143:86740a56073b | 402 | volatile uint32_t errorCount; /*!< Error count for slave transfer.*/ |
AnnaBridge | 143:86740a56073b | 403 | |
AnnaBridge | 143:86740a56073b | 404 | dspi_slave_transfer_callback_t callback; /*!< Completion callback. */ |
AnnaBridge | 143:86740a56073b | 405 | void *userData; /*!< Callback user data. */ |
AnnaBridge | 143:86740a56073b | 406 | }; |
AnnaBridge | 143:86740a56073b | 407 | |
AnnaBridge | 143:86740a56073b | 408 | /********************************************************************************************************************** |
AnnaBridge | 143:86740a56073b | 409 | * API |
AnnaBridge | 143:86740a56073b | 410 | *********************************************************************************************************************/ |
AnnaBridge | 143:86740a56073b | 411 | #if defined(__cplusplus) |
AnnaBridge | 143:86740a56073b | 412 | extern "C" { |
AnnaBridge | 143:86740a56073b | 413 | #endif /*_cplusplus*/ |
AnnaBridge | 143:86740a56073b | 414 | |
AnnaBridge | 143:86740a56073b | 415 | /*! |
AnnaBridge | 143:86740a56073b | 416 | * @name Initialization and deinitialization |
AnnaBridge | 143:86740a56073b | 417 | * @{ |
AnnaBridge | 143:86740a56073b | 418 | */ |
AnnaBridge | 143:86740a56073b | 419 | |
AnnaBridge | 143:86740a56073b | 420 | /*! |
AnnaBridge | 143:86740a56073b | 421 | * @brief Initializes the DSPI master. |
AnnaBridge | 143:86740a56073b | 422 | * |
AnnaBridge | 143:86740a56073b | 423 | * This function initializes the DSPI master configuration. This is an example use case. |
AnnaBridge | 143:86740a56073b | 424 | * @code |
AnnaBridge | 143:86740a56073b | 425 | * dspi_master_config_t masterConfig; |
AnnaBridge | 143:86740a56073b | 426 | * masterConfig.whichCtar = kDSPI_Ctar0; |
AnnaBridge | 143:86740a56073b | 427 | * masterConfig.ctarConfig.baudRate = 500000000U; |
AnnaBridge | 143:86740a56073b | 428 | * masterConfig.ctarConfig.bitsPerFrame = 8; |
AnnaBridge | 143:86740a56073b | 429 | * masterConfig.ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; |
AnnaBridge | 143:86740a56073b | 430 | * masterConfig.ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; |
AnnaBridge | 143:86740a56073b | 431 | * masterConfig.ctarConfig.direction = kDSPI_MsbFirst; |
AnnaBridge | 143:86740a56073b | 432 | * masterConfig.ctarConfig.pcsToSckDelayInNanoSec = 1000000000U / masterConfig.ctarConfig.baudRate ; |
AnnaBridge | 143:86740a56073b | 433 | * masterConfig.ctarConfig.lastSckToPcsDelayInNanoSec = 1000000000U / masterConfig.ctarConfig.baudRate ; |
AnnaBridge | 143:86740a56073b | 434 | * masterConfig.ctarConfig.betweenTransferDelayInNanoSec = 1000000000U / masterConfig.ctarConfig.baudRate ; |
AnnaBridge | 143:86740a56073b | 435 | * masterConfig.whichPcs = kDSPI_Pcs0; |
AnnaBridge | 143:86740a56073b | 436 | * masterConfig.pcsActiveHighOrLow = kDSPI_PcsActiveLow; |
AnnaBridge | 143:86740a56073b | 437 | * masterConfig.enableContinuousSCK = false; |
AnnaBridge | 143:86740a56073b | 438 | * masterConfig.enableRxFifoOverWrite = false; |
AnnaBridge | 143:86740a56073b | 439 | * masterConfig.enableModifiedTimingFormat = false; |
AnnaBridge | 143:86740a56073b | 440 | * masterConfig.samplePoint = kDSPI_SckToSin0Clock; |
AnnaBridge | 143:86740a56073b | 441 | * DSPI_MasterInit(base, &masterConfig, srcClock_Hz); |
AnnaBridge | 143:86740a56073b | 442 | * @endcode |
AnnaBridge | 143:86740a56073b | 443 | * |
AnnaBridge | 143:86740a56073b | 444 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 445 | * @param masterConfig Pointer to the structure dspi_master_config_t. |
AnnaBridge | 143:86740a56073b | 446 | * @param srcClock_Hz Module source input clock in Hertz. |
AnnaBridge | 143:86740a56073b | 447 | */ |
AnnaBridge | 143:86740a56073b | 448 | void DSPI_MasterInit(SPI_Type *base, const dspi_master_config_t *masterConfig, uint32_t srcClock_Hz); |
AnnaBridge | 143:86740a56073b | 449 | |
AnnaBridge | 143:86740a56073b | 450 | /*! |
AnnaBridge | 143:86740a56073b | 451 | * @brief Sets the dspi_master_config_t structure to default values. |
AnnaBridge | 143:86740a56073b | 452 | * |
AnnaBridge | 143:86740a56073b | 453 | * The purpose of this API is to get the configuration structure initialized for the DSPI_MasterInit(). |
AnnaBridge | 143:86740a56073b | 454 | * Users may use the initialized structure unchanged in the DSPI_MasterInit() or modify the structure |
AnnaBridge | 143:86740a56073b | 455 | * before calling the DSPI_MasterInit(). |
AnnaBridge | 143:86740a56073b | 456 | * Example: |
AnnaBridge | 143:86740a56073b | 457 | * @code |
AnnaBridge | 143:86740a56073b | 458 | * dspi_master_config_t masterConfig; |
AnnaBridge | 143:86740a56073b | 459 | * DSPI_MasterGetDefaultConfig(&masterConfig); |
AnnaBridge | 143:86740a56073b | 460 | * @endcode |
AnnaBridge | 143:86740a56073b | 461 | * @param masterConfig pointer to dspi_master_config_t structure |
AnnaBridge | 143:86740a56073b | 462 | */ |
AnnaBridge | 143:86740a56073b | 463 | void DSPI_MasterGetDefaultConfig(dspi_master_config_t *masterConfig); |
AnnaBridge | 143:86740a56073b | 464 | |
AnnaBridge | 143:86740a56073b | 465 | /*! |
AnnaBridge | 143:86740a56073b | 466 | * @brief DSPI slave configuration. |
AnnaBridge | 143:86740a56073b | 467 | * |
AnnaBridge | 143:86740a56073b | 468 | * This function initializes the DSPI slave configuration. This is an example use case. |
AnnaBridge | 143:86740a56073b | 469 | * @code |
AnnaBridge | 143:86740a56073b | 470 | * dspi_slave_config_t slaveConfig; |
AnnaBridge | 143:86740a56073b | 471 | * slaveConfig->whichCtar = kDSPI_Ctar0; |
AnnaBridge | 143:86740a56073b | 472 | * slaveConfig->ctarConfig.bitsPerFrame = 8; |
AnnaBridge | 143:86740a56073b | 473 | * slaveConfig->ctarConfig.cpol = kDSPI_ClockPolarityActiveHigh; |
AnnaBridge | 143:86740a56073b | 474 | * slaveConfig->ctarConfig.cpha = kDSPI_ClockPhaseFirstEdge; |
AnnaBridge | 143:86740a56073b | 475 | * slaveConfig->enableContinuousSCK = false; |
AnnaBridge | 143:86740a56073b | 476 | * slaveConfig->enableRxFifoOverWrite = false; |
AnnaBridge | 143:86740a56073b | 477 | * slaveConfig->enableModifiedTimingFormat = false; |
AnnaBridge | 143:86740a56073b | 478 | * slaveConfig->samplePoint = kDSPI_SckToSin0Clock; |
AnnaBridge | 143:86740a56073b | 479 | * DSPI_SlaveInit(base, &slaveConfig); |
AnnaBridge | 143:86740a56073b | 480 | * @endcode |
AnnaBridge | 143:86740a56073b | 481 | * |
AnnaBridge | 143:86740a56073b | 482 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 483 | * @param slaveConfig Pointer to the structure dspi_master_config_t. |
AnnaBridge | 143:86740a56073b | 484 | */ |
AnnaBridge | 143:86740a56073b | 485 | void DSPI_SlaveInit(SPI_Type *base, const dspi_slave_config_t *slaveConfig); |
AnnaBridge | 143:86740a56073b | 486 | |
AnnaBridge | 143:86740a56073b | 487 | /*! |
AnnaBridge | 143:86740a56073b | 488 | * @brief Sets the dspi_slave_config_t structure to a default value. |
AnnaBridge | 143:86740a56073b | 489 | * |
AnnaBridge | 143:86740a56073b | 490 | * The purpose of this API is to get the configuration structure initialized for the DSPI_SlaveInit(). |
AnnaBridge | 143:86740a56073b | 491 | * Users may use the initialized structure unchanged in the DSPI_SlaveInit() or modify the structure |
AnnaBridge | 143:86740a56073b | 492 | * before calling the DSPI_SlaveInit(). |
AnnaBridge | 143:86740a56073b | 493 | * This is an example. |
AnnaBridge | 143:86740a56073b | 494 | * @code |
AnnaBridge | 143:86740a56073b | 495 | * dspi_slave_config_t slaveConfig; |
AnnaBridge | 143:86740a56073b | 496 | * DSPI_SlaveGetDefaultConfig(&slaveConfig); |
AnnaBridge | 143:86740a56073b | 497 | * @endcode |
AnnaBridge | 143:86740a56073b | 498 | * @param slaveConfig Pointer to the dspi_slave_config_t structure. |
AnnaBridge | 143:86740a56073b | 499 | */ |
AnnaBridge | 143:86740a56073b | 500 | void DSPI_SlaveGetDefaultConfig(dspi_slave_config_t *slaveConfig); |
AnnaBridge | 143:86740a56073b | 501 | |
AnnaBridge | 143:86740a56073b | 502 | /*! |
AnnaBridge | 143:86740a56073b | 503 | * @brief De-initializes the DSPI peripheral. Call this API to disable the DSPI clock. |
AnnaBridge | 143:86740a56073b | 504 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 505 | */ |
AnnaBridge | 143:86740a56073b | 506 | void DSPI_Deinit(SPI_Type *base); |
AnnaBridge | 143:86740a56073b | 507 | |
AnnaBridge | 143:86740a56073b | 508 | /*! |
AnnaBridge | 143:86740a56073b | 509 | * @brief Enables the DSPI peripheral and sets the MCR MDIS to 0. |
AnnaBridge | 143:86740a56073b | 510 | * |
AnnaBridge | 143:86740a56073b | 511 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 512 | * @param enable Pass true to enable module, false to disable module. |
AnnaBridge | 143:86740a56073b | 513 | */ |
AnnaBridge | 143:86740a56073b | 514 | static inline void DSPI_Enable(SPI_Type *base, bool enable) |
AnnaBridge | 143:86740a56073b | 515 | { |
AnnaBridge | 143:86740a56073b | 516 | if (enable) |
AnnaBridge | 143:86740a56073b | 517 | { |
AnnaBridge | 143:86740a56073b | 518 | base->MCR &= ~SPI_MCR_MDIS_MASK; |
AnnaBridge | 143:86740a56073b | 519 | } |
AnnaBridge | 143:86740a56073b | 520 | else |
AnnaBridge | 143:86740a56073b | 521 | { |
AnnaBridge | 143:86740a56073b | 522 | base->MCR |= SPI_MCR_MDIS_MASK; |
AnnaBridge | 143:86740a56073b | 523 | } |
AnnaBridge | 143:86740a56073b | 524 | } |
AnnaBridge | 143:86740a56073b | 525 | |
AnnaBridge | 143:86740a56073b | 526 | /*! |
AnnaBridge | 143:86740a56073b | 527 | *@} |
AnnaBridge | 143:86740a56073b | 528 | */ |
AnnaBridge | 143:86740a56073b | 529 | |
AnnaBridge | 143:86740a56073b | 530 | /*! |
AnnaBridge | 143:86740a56073b | 531 | * @name Status |
AnnaBridge | 143:86740a56073b | 532 | * @{ |
AnnaBridge | 143:86740a56073b | 533 | */ |
AnnaBridge | 143:86740a56073b | 534 | |
AnnaBridge | 143:86740a56073b | 535 | /*! |
AnnaBridge | 143:86740a56073b | 536 | * @brief Gets the DSPI status flag state. |
AnnaBridge | 143:86740a56073b | 537 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 538 | * @return DSPI status (in SR register). |
AnnaBridge | 143:86740a56073b | 539 | */ |
AnnaBridge | 143:86740a56073b | 540 | static inline uint32_t DSPI_GetStatusFlags(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 541 | { |
AnnaBridge | 143:86740a56073b | 542 | return (base->SR); |
AnnaBridge | 143:86740a56073b | 543 | } |
AnnaBridge | 143:86740a56073b | 544 | |
AnnaBridge | 143:86740a56073b | 545 | /*! |
AnnaBridge | 143:86740a56073b | 546 | * @brief Clears the DSPI status flag. |
AnnaBridge | 143:86740a56073b | 547 | * |
AnnaBridge | 143:86740a56073b | 548 | * This function clears the desired status bit by using a write-1-to-clear. The user passes in the base and the |
AnnaBridge | 143:86740a56073b | 549 | * desired status bit to clear. The list of status bits is defined in the dspi_status_and_interrupt_request_t. The |
AnnaBridge | 143:86740a56073b | 550 | * function uses these bit positions in its algorithm to clear the desired flag state. |
AnnaBridge | 143:86740a56073b | 551 | * This is an example. |
AnnaBridge | 143:86740a56073b | 552 | * @code |
AnnaBridge | 143:86740a56073b | 553 | * DSPI_ClearStatusFlags(base, kDSPI_TxCompleteFlag|kDSPI_EndOfQueueFlag); |
AnnaBridge | 143:86740a56073b | 554 | * @endcode |
AnnaBridge | 143:86740a56073b | 555 | * |
AnnaBridge | 143:86740a56073b | 556 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 557 | * @param statusFlags The status flag used from the type dspi_flags. |
AnnaBridge | 143:86740a56073b | 558 | */ |
AnnaBridge | 143:86740a56073b | 559 | static inline void DSPI_ClearStatusFlags(SPI_Type *base, uint32_t statusFlags) |
AnnaBridge | 143:86740a56073b | 560 | { |
AnnaBridge | 143:86740a56073b | 561 | base->SR = statusFlags; /*!< The status flags are cleared by writing 1 (w1c).*/ |
AnnaBridge | 143:86740a56073b | 562 | } |
AnnaBridge | 143:86740a56073b | 563 | |
AnnaBridge | 143:86740a56073b | 564 | /*! |
AnnaBridge | 143:86740a56073b | 565 | *@} |
AnnaBridge | 143:86740a56073b | 566 | */ |
AnnaBridge | 143:86740a56073b | 567 | |
AnnaBridge | 143:86740a56073b | 568 | /*! |
AnnaBridge | 143:86740a56073b | 569 | * @name Interrupts |
AnnaBridge | 143:86740a56073b | 570 | * @{ |
AnnaBridge | 143:86740a56073b | 571 | */ |
AnnaBridge | 143:86740a56073b | 572 | |
AnnaBridge | 143:86740a56073b | 573 | /*! |
AnnaBridge | 143:86740a56073b | 574 | * @brief Enables the DSPI interrupts. |
AnnaBridge | 143:86740a56073b | 575 | * |
AnnaBridge | 143:86740a56073b | 576 | * This function configures the various interrupt masks of the DSPI. The parameters are a base and an interrupt mask. |
AnnaBridge | 143:86740a56073b | 577 | * Note, for Tx Fill and Rx FIFO drain requests, enable the interrupt request and disable the DMA request. |
AnnaBridge | 143:86740a56073b | 578 | * |
AnnaBridge | 143:86740a56073b | 579 | * @code |
AnnaBridge | 143:86740a56073b | 580 | * DSPI_EnableInterrupts(base, kDSPI_TxCompleteInterruptEnable | kDSPI_EndOfQueueInterruptEnable ); |
AnnaBridge | 143:86740a56073b | 581 | * @endcode |
AnnaBridge | 143:86740a56073b | 582 | * |
AnnaBridge | 143:86740a56073b | 583 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 584 | * @param mask The interrupt mask; use the enum _dspi_interrupt_enable. |
AnnaBridge | 143:86740a56073b | 585 | */ |
AnnaBridge | 143:86740a56073b | 586 | void DSPI_EnableInterrupts(SPI_Type *base, uint32_t mask); |
AnnaBridge | 143:86740a56073b | 587 | |
AnnaBridge | 143:86740a56073b | 588 | /*! |
AnnaBridge | 143:86740a56073b | 589 | * @brief Disables the DSPI interrupts. |
AnnaBridge | 143:86740a56073b | 590 | * |
AnnaBridge | 143:86740a56073b | 591 | * @code |
AnnaBridge | 143:86740a56073b | 592 | * DSPI_DisableInterrupts(base, kDSPI_TxCompleteInterruptEnable | kDSPI_EndOfQueueInterruptEnable ); |
AnnaBridge | 143:86740a56073b | 593 | * @endcode |
AnnaBridge | 143:86740a56073b | 594 | * |
AnnaBridge | 143:86740a56073b | 595 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 596 | * @param mask The interrupt mask; use the enum _dspi_interrupt_enable. |
AnnaBridge | 143:86740a56073b | 597 | */ |
AnnaBridge | 143:86740a56073b | 598 | static inline void DSPI_DisableInterrupts(SPI_Type *base, uint32_t mask) |
AnnaBridge | 143:86740a56073b | 599 | { |
AnnaBridge | 143:86740a56073b | 600 | base->RSER &= ~mask; |
AnnaBridge | 143:86740a56073b | 601 | } |
AnnaBridge | 143:86740a56073b | 602 | |
AnnaBridge | 143:86740a56073b | 603 | /*! |
AnnaBridge | 143:86740a56073b | 604 | *@} |
AnnaBridge | 143:86740a56073b | 605 | */ |
AnnaBridge | 143:86740a56073b | 606 | |
AnnaBridge | 143:86740a56073b | 607 | /*! |
AnnaBridge | 143:86740a56073b | 608 | * @name DMA Control |
AnnaBridge | 143:86740a56073b | 609 | * @{ |
AnnaBridge | 143:86740a56073b | 610 | */ |
AnnaBridge | 143:86740a56073b | 611 | |
AnnaBridge | 143:86740a56073b | 612 | /*! |
AnnaBridge | 143:86740a56073b | 613 | * @brief Enables the DSPI DMA request. |
AnnaBridge | 143:86740a56073b | 614 | * |
AnnaBridge | 143:86740a56073b | 615 | * This function configures the Rx and Tx DMA mask of the DSPI. The parameters are a base and a DMA mask. |
AnnaBridge | 143:86740a56073b | 616 | * @code |
AnnaBridge | 143:86740a56073b | 617 | * DSPI_EnableDMA(base, kDSPI_TxDmaEnable | kDSPI_RxDmaEnable); |
AnnaBridge | 143:86740a56073b | 618 | * @endcode |
AnnaBridge | 143:86740a56073b | 619 | * |
AnnaBridge | 143:86740a56073b | 620 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 621 | * @param mask The interrupt mask; use the enum dspi_dma_enable. |
AnnaBridge | 143:86740a56073b | 622 | */ |
AnnaBridge | 143:86740a56073b | 623 | static inline void DSPI_EnableDMA(SPI_Type *base, uint32_t mask) |
AnnaBridge | 143:86740a56073b | 624 | { |
AnnaBridge | 143:86740a56073b | 625 | base->RSER |= mask; |
AnnaBridge | 143:86740a56073b | 626 | } |
AnnaBridge | 143:86740a56073b | 627 | |
AnnaBridge | 143:86740a56073b | 628 | /*! |
AnnaBridge | 143:86740a56073b | 629 | * @brief Disables the DSPI DMA request. |
AnnaBridge | 143:86740a56073b | 630 | * |
AnnaBridge | 143:86740a56073b | 631 | * This function configures the Rx and Tx DMA mask of the DSPI. The parameters are a base and a DMA mask. |
AnnaBridge | 143:86740a56073b | 632 | * @code |
AnnaBridge | 143:86740a56073b | 633 | * SPI_DisableDMA(base, kDSPI_TxDmaEnable | kDSPI_RxDmaEnable); |
AnnaBridge | 143:86740a56073b | 634 | * @endcode |
AnnaBridge | 143:86740a56073b | 635 | * |
AnnaBridge | 143:86740a56073b | 636 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 637 | * @param mask The interrupt mask; use the enum dspi_dma_enable. |
AnnaBridge | 143:86740a56073b | 638 | */ |
AnnaBridge | 143:86740a56073b | 639 | static inline void DSPI_DisableDMA(SPI_Type *base, uint32_t mask) |
AnnaBridge | 143:86740a56073b | 640 | { |
AnnaBridge | 143:86740a56073b | 641 | base->RSER &= ~mask; |
AnnaBridge | 143:86740a56073b | 642 | } |
AnnaBridge | 143:86740a56073b | 643 | |
AnnaBridge | 143:86740a56073b | 644 | /*! |
AnnaBridge | 143:86740a56073b | 645 | * @brief Gets the DSPI master PUSHR data register address for the DMA operation. |
AnnaBridge | 143:86740a56073b | 646 | * |
AnnaBridge | 143:86740a56073b | 647 | * This function gets the DSPI master PUSHR data register address because this value is needed for the DMA operation. |
AnnaBridge | 143:86740a56073b | 648 | * |
AnnaBridge | 143:86740a56073b | 649 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 650 | * @return The DSPI master PUSHR data register address. |
AnnaBridge | 143:86740a56073b | 651 | */ |
AnnaBridge | 143:86740a56073b | 652 | static inline uint32_t DSPI_MasterGetTxRegisterAddress(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 653 | { |
AnnaBridge | 143:86740a56073b | 654 | return (uint32_t) & (base->PUSHR); |
AnnaBridge | 143:86740a56073b | 655 | } |
AnnaBridge | 143:86740a56073b | 656 | |
AnnaBridge | 143:86740a56073b | 657 | /*! |
AnnaBridge | 143:86740a56073b | 658 | * @brief Gets the DSPI slave PUSHR data register address for the DMA operation. |
AnnaBridge | 143:86740a56073b | 659 | * |
AnnaBridge | 143:86740a56073b | 660 | * This function gets the DSPI slave PUSHR data register address as this value is needed for the DMA operation. |
AnnaBridge | 143:86740a56073b | 661 | * |
AnnaBridge | 143:86740a56073b | 662 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 663 | * @return The DSPI slave PUSHR data register address. |
AnnaBridge | 143:86740a56073b | 664 | */ |
AnnaBridge | 143:86740a56073b | 665 | static inline uint32_t DSPI_SlaveGetTxRegisterAddress(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 666 | { |
AnnaBridge | 143:86740a56073b | 667 | return (uint32_t) & (base->PUSHR_SLAVE); |
AnnaBridge | 143:86740a56073b | 668 | } |
AnnaBridge | 143:86740a56073b | 669 | |
AnnaBridge | 143:86740a56073b | 670 | /*! |
AnnaBridge | 143:86740a56073b | 671 | * @brief Gets the DSPI POPR data register address for the DMA operation. |
AnnaBridge | 143:86740a56073b | 672 | * |
AnnaBridge | 143:86740a56073b | 673 | * This function gets the DSPI POPR data register address as this value is needed for the DMA operation. |
AnnaBridge | 143:86740a56073b | 674 | * |
AnnaBridge | 143:86740a56073b | 675 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 676 | * @return The DSPI POPR data register address. |
AnnaBridge | 143:86740a56073b | 677 | */ |
AnnaBridge | 143:86740a56073b | 678 | static inline uint32_t DSPI_GetRxRegisterAddress(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 679 | { |
AnnaBridge | 143:86740a56073b | 680 | return (uint32_t) & (base->POPR); |
AnnaBridge | 143:86740a56073b | 681 | } |
AnnaBridge | 143:86740a56073b | 682 | |
AnnaBridge | 143:86740a56073b | 683 | /*! |
AnnaBridge | 143:86740a56073b | 684 | *@} |
AnnaBridge | 143:86740a56073b | 685 | */ |
AnnaBridge | 143:86740a56073b | 686 | |
AnnaBridge | 143:86740a56073b | 687 | /*! |
AnnaBridge | 143:86740a56073b | 688 | * @name Bus Operations |
AnnaBridge | 143:86740a56073b | 689 | * @{ |
AnnaBridge | 143:86740a56073b | 690 | */ |
AnnaBridge | 143:86740a56073b | 691 | |
AnnaBridge | 143:86740a56073b | 692 | /*! |
AnnaBridge | 143:86740a56073b | 693 | * @brief Configures the DSPI for master or slave. |
AnnaBridge | 143:86740a56073b | 694 | * |
AnnaBridge | 143:86740a56073b | 695 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 696 | * @param mode Mode setting (master or slave) of type dspi_master_slave_mode_t. |
AnnaBridge | 143:86740a56073b | 697 | */ |
AnnaBridge | 143:86740a56073b | 698 | static inline void DSPI_SetMasterSlaveMode(SPI_Type *base, dspi_master_slave_mode_t mode) |
AnnaBridge | 143:86740a56073b | 699 | { |
AnnaBridge | 143:86740a56073b | 700 | base->MCR = (base->MCR & (~SPI_MCR_MSTR_MASK)) | SPI_MCR_MSTR(mode); |
AnnaBridge | 143:86740a56073b | 701 | } |
AnnaBridge | 143:86740a56073b | 702 | |
AnnaBridge | 143:86740a56073b | 703 | /*! |
AnnaBridge | 143:86740a56073b | 704 | * @brief Returns whether the DSPI module is in master mode. |
AnnaBridge | 143:86740a56073b | 705 | * |
AnnaBridge | 143:86740a56073b | 706 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 707 | * @return Returns true if the module is in master mode or false if the module is in slave mode. |
AnnaBridge | 143:86740a56073b | 708 | */ |
AnnaBridge | 143:86740a56073b | 709 | static inline bool DSPI_IsMaster(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 710 | { |
AnnaBridge | 143:86740a56073b | 711 | return (bool)((base->MCR) & SPI_MCR_MSTR_MASK); |
AnnaBridge | 143:86740a56073b | 712 | } |
AnnaBridge | 143:86740a56073b | 713 | /*! |
AnnaBridge | 143:86740a56073b | 714 | * @brief Starts the DSPI transfers and clears HALT bit in MCR. |
AnnaBridge | 143:86740a56073b | 715 | * |
AnnaBridge | 143:86740a56073b | 716 | * This function sets the module to start data transfer in either master or slave mode. |
AnnaBridge | 143:86740a56073b | 717 | * |
AnnaBridge | 143:86740a56073b | 718 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 719 | */ |
AnnaBridge | 143:86740a56073b | 720 | static inline void DSPI_StartTransfer(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 721 | { |
AnnaBridge | 143:86740a56073b | 722 | base->MCR &= ~SPI_MCR_HALT_MASK; |
AnnaBridge | 143:86740a56073b | 723 | } |
AnnaBridge | 143:86740a56073b | 724 | /*! |
AnnaBridge | 143:86740a56073b | 725 | * @brief Stops DSPI transfers and sets the HALT bit in MCR. |
AnnaBridge | 143:86740a56073b | 726 | * |
AnnaBridge | 143:86740a56073b | 727 | * This function stops data transfers in either master or slave modes. |
AnnaBridge | 143:86740a56073b | 728 | * |
AnnaBridge | 143:86740a56073b | 729 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 730 | */ |
AnnaBridge | 143:86740a56073b | 731 | static inline void DSPI_StopTransfer(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 732 | { |
AnnaBridge | 143:86740a56073b | 733 | base->MCR |= SPI_MCR_HALT_MASK; |
AnnaBridge | 143:86740a56073b | 734 | } |
AnnaBridge | 143:86740a56073b | 735 | |
AnnaBridge | 143:86740a56073b | 736 | /*! |
AnnaBridge | 143:86740a56073b | 737 | * @brief Enables or disables the DSPI FIFOs. |
AnnaBridge | 143:86740a56073b | 738 | * |
AnnaBridge | 143:86740a56073b | 739 | * This function allows the caller to disable/enable the Tx and Rx FIFOs independently. |
AnnaBridge | 143:86740a56073b | 740 | * Note that to disable, pass in a logic 0 (false) for the particular FIFO configuration. To enable, |
AnnaBridge | 143:86740a56073b | 741 | * pass in a logic 1 (true). |
AnnaBridge | 143:86740a56073b | 742 | * |
AnnaBridge | 143:86740a56073b | 743 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 744 | * @param enableTxFifo Disables (false) the TX FIFO; Otherwise, enables (true) the TX FIFO |
AnnaBridge | 143:86740a56073b | 745 | * @param enableRxFifo Disables (false) the RX FIFO; Otherwise, enables (true) the RX FIFO |
AnnaBridge | 143:86740a56073b | 746 | */ |
AnnaBridge | 143:86740a56073b | 747 | static inline void DSPI_SetFifoEnable(SPI_Type *base, bool enableTxFifo, bool enableRxFifo) |
AnnaBridge | 143:86740a56073b | 748 | { |
AnnaBridge | 143:86740a56073b | 749 | base->MCR = (base->MCR & (~(SPI_MCR_DIS_RXF_MASK | SPI_MCR_DIS_TXF_MASK))) | SPI_MCR_DIS_TXF(!enableTxFifo) | |
AnnaBridge | 143:86740a56073b | 750 | SPI_MCR_DIS_RXF(!enableRxFifo); |
AnnaBridge | 143:86740a56073b | 751 | } |
AnnaBridge | 143:86740a56073b | 752 | |
AnnaBridge | 143:86740a56073b | 753 | /*! |
AnnaBridge | 143:86740a56073b | 754 | * @brief Flushes the DSPI FIFOs. |
AnnaBridge | 143:86740a56073b | 755 | * |
AnnaBridge | 143:86740a56073b | 756 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 757 | * @param flushTxFifo Flushes (true) the Tx FIFO; Otherwise, does not flush (false) the Tx FIFO |
AnnaBridge | 143:86740a56073b | 758 | * @param flushRxFifo Flushes (true) the Rx FIFO; Otherwise, does not flush (false) the Rx FIFO |
AnnaBridge | 143:86740a56073b | 759 | */ |
AnnaBridge | 143:86740a56073b | 760 | static inline void DSPI_FlushFifo(SPI_Type *base, bool flushTxFifo, bool flushRxFifo) |
AnnaBridge | 143:86740a56073b | 761 | { |
AnnaBridge | 143:86740a56073b | 762 | base->MCR = (base->MCR & (~(SPI_MCR_CLR_TXF_MASK | SPI_MCR_CLR_RXF_MASK))) | SPI_MCR_CLR_TXF(flushTxFifo) | |
AnnaBridge | 143:86740a56073b | 763 | SPI_MCR_CLR_RXF(flushRxFifo); |
AnnaBridge | 143:86740a56073b | 764 | } |
AnnaBridge | 143:86740a56073b | 765 | |
AnnaBridge | 143:86740a56073b | 766 | /*! |
AnnaBridge | 143:86740a56073b | 767 | * @brief Configures the DSPI peripheral chip select polarity simultaneously. |
AnnaBridge | 143:86740a56073b | 768 | * For example, PCS0 and PCS1 are set to active low and other PCS is set to active high. Note that the number of |
AnnaBridge | 143:86740a56073b | 769 | * PCSs is specific to the device. |
AnnaBridge | 143:86740a56073b | 770 | * @code |
AnnaBridge | 143:86740a56073b | 771 | * DSPI_SetAllPcsPolarity(base, kDSPI_Pcs0ActiveLow | kDSPI_Pcs1ActiveLow); |
AnnaBridge | 143:86740a56073b | 772 | @endcode |
AnnaBridge | 143:86740a56073b | 773 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 774 | * @param mask The PCS polarity mask; use the enum _dspi_pcs_polarity. |
AnnaBridge | 143:86740a56073b | 775 | */ |
AnnaBridge | 143:86740a56073b | 776 | static inline void DSPI_SetAllPcsPolarity(SPI_Type *base, uint32_t mask) |
AnnaBridge | 143:86740a56073b | 777 | { |
AnnaBridge | 143:86740a56073b | 778 | base->MCR = (base->MCR & ~SPI_MCR_PCSIS_MASK) | SPI_MCR_PCSIS(mask); |
AnnaBridge | 143:86740a56073b | 779 | } |
AnnaBridge | 143:86740a56073b | 780 | |
AnnaBridge | 143:86740a56073b | 781 | /*! |
AnnaBridge | 143:86740a56073b | 782 | * @brief Sets the DSPI baud rate in bits per second. |
AnnaBridge | 143:86740a56073b | 783 | * |
AnnaBridge | 143:86740a56073b | 784 | * This function takes in the desired baudRate_Bps (baud rate) and calculates the nearest possible baud rate without |
AnnaBridge | 143:86740a56073b | 785 | * exceeding the desired baud rate, and returns the calculated baud rate in bits-per-second. It requires that the |
AnnaBridge | 143:86740a56073b | 786 | * caller also provide the frequency of the module source clock (in Hertz). |
AnnaBridge | 143:86740a56073b | 787 | * |
AnnaBridge | 143:86740a56073b | 788 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 789 | * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of the type dspi_ctar_selection_t |
AnnaBridge | 143:86740a56073b | 790 | * @param baudRate_Bps The desired baud rate in bits per second |
AnnaBridge | 143:86740a56073b | 791 | * @param srcClock_Hz Module source input clock in Hertz |
AnnaBridge | 143:86740a56073b | 792 | * @return The actual calculated baud rate |
AnnaBridge | 143:86740a56073b | 793 | */ |
AnnaBridge | 143:86740a56073b | 794 | uint32_t DSPI_MasterSetBaudRate(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 795 | dspi_ctar_selection_t whichCtar, |
AnnaBridge | 143:86740a56073b | 796 | uint32_t baudRate_Bps, |
AnnaBridge | 143:86740a56073b | 797 | uint32_t srcClock_Hz); |
AnnaBridge | 143:86740a56073b | 798 | |
AnnaBridge | 143:86740a56073b | 799 | /*! |
AnnaBridge | 143:86740a56073b | 800 | * @brief Manually configures the delay prescaler and scaler for a particular CTAR. |
AnnaBridge | 143:86740a56073b | 801 | * |
AnnaBridge | 143:86740a56073b | 802 | * This function configures the PCS to SCK delay pre-scalar (PcsSCK) and scalar (CSSCK), after SCK delay pre-scalar |
AnnaBridge | 143:86740a56073b | 803 | * (PASC) and scalar (ASC), and the delay after transfer pre-scalar (PDT) and scalar (DT). |
AnnaBridge | 143:86740a56073b | 804 | * |
AnnaBridge | 143:86740a56073b | 805 | * These delay names are available in the type dspi_delay_type_t. |
AnnaBridge | 143:86740a56073b | 806 | * |
AnnaBridge | 143:86740a56073b | 807 | * The user passes the delay to the configuration along with the prescaler and scaler value. |
AnnaBridge | 143:86740a56073b | 808 | * This allows the user to directly set the prescaler/scaler values if pre-calculated or |
AnnaBridge | 143:86740a56073b | 809 | * to manually increment either value. |
AnnaBridge | 143:86740a56073b | 810 | * |
AnnaBridge | 143:86740a56073b | 811 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 812 | * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of type dspi_ctar_selection_t. |
AnnaBridge | 143:86740a56073b | 813 | * @param prescaler The prescaler delay value (can be an integer 0, 1, 2, or 3). |
AnnaBridge | 143:86740a56073b | 814 | * @param scaler The scaler delay value (can be any integer between 0 to 15). |
AnnaBridge | 143:86740a56073b | 815 | * @param whichDelay The desired delay to configure; must be of type dspi_delay_type_t |
AnnaBridge | 143:86740a56073b | 816 | */ |
AnnaBridge | 143:86740a56073b | 817 | void DSPI_MasterSetDelayScaler( |
AnnaBridge | 143:86740a56073b | 818 | SPI_Type *base, dspi_ctar_selection_t whichCtar, uint32_t prescaler, uint32_t scaler, dspi_delay_type_t whichDelay); |
AnnaBridge | 143:86740a56073b | 819 | |
AnnaBridge | 143:86740a56073b | 820 | /*! |
AnnaBridge | 143:86740a56073b | 821 | * @brief Calculates the delay prescaler and scaler based on the desired delay input in nanoseconds. |
AnnaBridge | 143:86740a56073b | 822 | * |
AnnaBridge | 143:86740a56073b | 823 | * This function calculates the values for the following. |
AnnaBridge | 143:86740a56073b | 824 | * PCS to SCK delay pre-scalar (PCSSCK) and scalar (CSSCK), or |
AnnaBridge | 143:86740a56073b | 825 | * After SCK delay pre-scalar (PASC) and scalar (ASC), or |
AnnaBridge | 143:86740a56073b | 826 | * Delay after transfer pre-scalar (PDT) and scalar (DT). |
AnnaBridge | 143:86740a56073b | 827 | * |
AnnaBridge | 143:86740a56073b | 828 | * These delay names are available in the type dspi_delay_type_t. |
AnnaBridge | 143:86740a56073b | 829 | * |
AnnaBridge | 143:86740a56073b | 830 | * The user passes which delay to configure along with the desired delay value in nanoseconds. The function |
AnnaBridge | 143:86740a56073b | 831 | * calculates the values needed for the prescaler and scaler. Note that returning the calculated delay as an exact |
AnnaBridge | 143:86740a56073b | 832 | * delay match may not be possible. In this case, the closest match is calculated without going below the desired |
AnnaBridge | 143:86740a56073b | 833 | * delay value input. |
AnnaBridge | 143:86740a56073b | 834 | * It is possible to input a very large delay value that exceeds the capability of the part, in which case the maximum |
AnnaBridge | 143:86740a56073b | 835 | * supported delay is returned. The higher-level peripheral driver alerts the user of an out of range delay |
AnnaBridge | 143:86740a56073b | 836 | * input. |
AnnaBridge | 143:86740a56073b | 837 | * |
AnnaBridge | 143:86740a56073b | 838 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 839 | * @param whichCtar The desired Clock and Transfer Attributes Register (CTAR) of type dspi_ctar_selection_t. |
AnnaBridge | 143:86740a56073b | 840 | * @param whichDelay The desired delay to configure, must be of type dspi_delay_type_t |
AnnaBridge | 143:86740a56073b | 841 | * @param srcClock_Hz Module source input clock in Hertz |
AnnaBridge | 143:86740a56073b | 842 | * @param delayTimeInNanoSec The desired delay value in nanoseconds. |
AnnaBridge | 143:86740a56073b | 843 | * @return The actual calculated delay value. |
AnnaBridge | 143:86740a56073b | 844 | */ |
AnnaBridge | 143:86740a56073b | 845 | uint32_t DSPI_MasterSetDelayTimes(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 846 | dspi_ctar_selection_t whichCtar, |
AnnaBridge | 143:86740a56073b | 847 | dspi_delay_type_t whichDelay, |
AnnaBridge | 143:86740a56073b | 848 | uint32_t srcClock_Hz, |
AnnaBridge | 143:86740a56073b | 849 | uint32_t delayTimeInNanoSec); |
AnnaBridge | 143:86740a56073b | 850 | |
AnnaBridge | 143:86740a56073b | 851 | /*! |
AnnaBridge | 143:86740a56073b | 852 | * @brief Writes data into the data buffer for master mode. |
AnnaBridge | 143:86740a56073b | 853 | * |
AnnaBridge | 143:86740a56073b | 854 | * In master mode, the 16-bit data is appended to the 16-bit command info. The command portion |
AnnaBridge | 143:86740a56073b | 855 | * provides characteristics of the data, such as the optional continuous chip select |
AnnaBridge | 143:86740a56073b | 856 | * operation between transfers, the desired Clock and Transfer Attributes register to use for the |
AnnaBridge | 143:86740a56073b | 857 | * associated SPI frame, the desired PCS signal to use for the data transfer, whether the current |
AnnaBridge | 143:86740a56073b | 858 | * transfer is the last in the queue, and whether to clear the transfer count (normally needed when |
AnnaBridge | 143:86740a56073b | 859 | * sending the first frame of a data packet). This is an example. |
AnnaBridge | 143:86740a56073b | 860 | * @code |
AnnaBridge | 143:86740a56073b | 861 | * dspi_command_data_config_t commandConfig; |
AnnaBridge | 143:86740a56073b | 862 | * commandConfig.isPcsContinuous = true; |
AnnaBridge | 143:86740a56073b | 863 | * commandConfig.whichCtar = kDSPICtar0; |
AnnaBridge | 143:86740a56073b | 864 | * commandConfig.whichPcs = kDSPIPcs0; |
AnnaBridge | 143:86740a56073b | 865 | * commandConfig.clearTransferCount = false; |
AnnaBridge | 143:86740a56073b | 866 | * commandConfig.isEndOfQueue = false; |
AnnaBridge | 143:86740a56073b | 867 | * DSPI_MasterWriteData(base, &commandConfig, dataWord); |
AnnaBridge | 143:86740a56073b | 868 | @endcode |
AnnaBridge | 143:86740a56073b | 869 | * |
AnnaBridge | 143:86740a56073b | 870 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 871 | * @param command Pointer to the command structure. |
AnnaBridge | 143:86740a56073b | 872 | * @param data The data word to be sent. |
AnnaBridge | 143:86740a56073b | 873 | */ |
AnnaBridge | 143:86740a56073b | 874 | static inline void DSPI_MasterWriteData(SPI_Type *base, dspi_command_data_config_t *command, uint16_t data) |
AnnaBridge | 143:86740a56073b | 875 | { |
AnnaBridge | 143:86740a56073b | 876 | base->PUSHR = SPI_PUSHR_CONT(command->isPcsContinuous) | SPI_PUSHR_CTAS(command->whichCtar) | |
AnnaBridge | 143:86740a56073b | 877 | SPI_PUSHR_PCS(command->whichPcs) | SPI_PUSHR_EOQ(command->isEndOfQueue) | |
AnnaBridge | 143:86740a56073b | 878 | SPI_PUSHR_CTCNT(command->clearTransferCount) | SPI_PUSHR_TXDATA(data); |
AnnaBridge | 143:86740a56073b | 879 | } |
AnnaBridge | 143:86740a56073b | 880 | |
AnnaBridge | 143:86740a56073b | 881 | /*! |
AnnaBridge | 143:86740a56073b | 882 | * @brief Sets the dspi_command_data_config_t structure to default values. |
AnnaBridge | 143:86740a56073b | 883 | * |
AnnaBridge | 143:86740a56073b | 884 | * The purpose of this API is to get the configuration structure initialized for use in the DSPI_MasterWrite_xx(). |
AnnaBridge | 143:86740a56073b | 885 | * Users may use the initialized structure unchanged in the DSPI_MasterWrite_xx() or modify the structure |
AnnaBridge | 143:86740a56073b | 886 | * before calling the DSPI_MasterWrite_xx(). |
AnnaBridge | 143:86740a56073b | 887 | * This is an example. |
AnnaBridge | 143:86740a56073b | 888 | * @code |
AnnaBridge | 143:86740a56073b | 889 | * dspi_command_data_config_t command; |
AnnaBridge | 143:86740a56073b | 890 | * DSPI_GetDefaultDataCommandConfig(&command); |
AnnaBridge | 143:86740a56073b | 891 | * @endcode |
AnnaBridge | 143:86740a56073b | 892 | * @param command Pointer to the dspi_command_data_config_t structure. |
AnnaBridge | 143:86740a56073b | 893 | */ |
AnnaBridge | 143:86740a56073b | 894 | void DSPI_GetDefaultDataCommandConfig(dspi_command_data_config_t *command); |
AnnaBridge | 143:86740a56073b | 895 | |
AnnaBridge | 143:86740a56073b | 896 | /*! |
AnnaBridge | 143:86740a56073b | 897 | * @brief Writes data into the data buffer master mode and waits till complete to return. |
AnnaBridge | 143:86740a56073b | 898 | * |
AnnaBridge | 143:86740a56073b | 899 | * In master mode, the 16-bit data is appended to the 16-bit command info. The command portion |
AnnaBridge | 143:86740a56073b | 900 | * provides characteristics of the data, such as the optional continuous chip select |
AnnaBridge | 143:86740a56073b | 901 | * operation between transfers, the desired Clock and Transfer Attributes register to use for the |
AnnaBridge | 143:86740a56073b | 902 | * associated SPI frame, the desired PCS signal to use for the data transfer, whether the current |
AnnaBridge | 143:86740a56073b | 903 | * transfer is the last in the queue, and whether to clear the transfer count (normally needed when |
AnnaBridge | 143:86740a56073b | 904 | * sending the first frame of a data packet). This is an example. |
AnnaBridge | 143:86740a56073b | 905 | * @code |
AnnaBridge | 143:86740a56073b | 906 | * dspi_command_config_t commandConfig; |
AnnaBridge | 143:86740a56073b | 907 | * commandConfig.isPcsContinuous = true; |
AnnaBridge | 143:86740a56073b | 908 | * commandConfig.whichCtar = kDSPICtar0; |
AnnaBridge | 143:86740a56073b | 909 | * commandConfig.whichPcs = kDSPIPcs1; |
AnnaBridge | 143:86740a56073b | 910 | * commandConfig.clearTransferCount = false; |
AnnaBridge | 143:86740a56073b | 911 | * commandConfig.isEndOfQueue = false; |
AnnaBridge | 143:86740a56073b | 912 | * DSPI_MasterWriteDataBlocking(base, &commandConfig, dataWord); |
AnnaBridge | 143:86740a56073b | 913 | * @endcode |
AnnaBridge | 143:86740a56073b | 914 | * |
AnnaBridge | 143:86740a56073b | 915 | * Note that this function does not return until after the transmit is complete. Also note that the DSPI must be |
AnnaBridge | 143:86740a56073b | 916 | * enabled and running to transmit data (MCR[MDIS] & [HALT] = 0). Because the SPI is a synchronous protocol, |
AnnaBridge | 143:86740a56073b | 917 | * the received data is available when the transmit completes. |
AnnaBridge | 143:86740a56073b | 918 | * |
AnnaBridge | 143:86740a56073b | 919 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 920 | * @param command Pointer to the command structure. |
AnnaBridge | 143:86740a56073b | 921 | * @param data The data word to be sent. |
AnnaBridge | 143:86740a56073b | 922 | */ |
AnnaBridge | 143:86740a56073b | 923 | void DSPI_MasterWriteDataBlocking(SPI_Type *base, dspi_command_data_config_t *command, uint16_t data); |
AnnaBridge | 143:86740a56073b | 924 | |
AnnaBridge | 143:86740a56073b | 925 | /*! |
AnnaBridge | 143:86740a56073b | 926 | * @brief Returns the DSPI command word formatted to the PUSHR data register bit field. |
AnnaBridge | 143:86740a56073b | 927 | * |
AnnaBridge | 143:86740a56073b | 928 | * This function allows the caller to pass in the data command structure and returns the command word formatted |
AnnaBridge | 143:86740a56073b | 929 | * according to the DSPI PUSHR register bit field placement. The user can then "OR" the returned command word with the |
AnnaBridge | 143:86740a56073b | 930 | * desired data to send and use the function DSPI_HAL_WriteCommandDataMastermode or |
AnnaBridge | 143:86740a56073b | 931 | * DSPI_HAL_WriteCommandDataMastermodeBlocking to write the entire 32-bit command data word to the PUSHR. This helps |
AnnaBridge | 143:86740a56073b | 932 | * improve performance in cases where the command structure is constant. For example, the user calls this function |
AnnaBridge | 143:86740a56073b | 933 | * before starting a transfer to generate the command word. When they are ready to transmit the data, they OR |
AnnaBridge | 143:86740a56073b | 934 | * this formatted command word with the desired data to transmit. This process increases transmit performance when |
AnnaBridge | 143:86740a56073b | 935 | * compared to calling send functions, such as DSPI_HAL_WriteDataMastermode, which format the command word each time a |
AnnaBridge | 143:86740a56073b | 936 | * data word is to be sent. |
AnnaBridge | 143:86740a56073b | 937 | * |
AnnaBridge | 143:86740a56073b | 938 | * @param command Pointer to the command structure. |
AnnaBridge | 143:86740a56073b | 939 | * @return The command word formatted to the PUSHR data register bit field. |
AnnaBridge | 143:86740a56073b | 940 | */ |
AnnaBridge | 143:86740a56073b | 941 | static inline uint32_t DSPI_MasterGetFormattedCommand(dspi_command_data_config_t *command) |
AnnaBridge | 143:86740a56073b | 942 | { |
AnnaBridge | 143:86740a56073b | 943 | /* Format the 16-bit command word according to the PUSHR data register bit field*/ |
AnnaBridge | 143:86740a56073b | 944 | return (uint32_t)(SPI_PUSHR_CONT(command->isPcsContinuous) | SPI_PUSHR_CTAS(command->whichCtar) | |
AnnaBridge | 143:86740a56073b | 945 | SPI_PUSHR_PCS(command->whichPcs) | SPI_PUSHR_EOQ(command->isEndOfQueue) | |
AnnaBridge | 143:86740a56073b | 946 | SPI_PUSHR_CTCNT(command->clearTransferCount)); |
AnnaBridge | 143:86740a56073b | 947 | } |
AnnaBridge | 143:86740a56073b | 948 | |
AnnaBridge | 143:86740a56073b | 949 | /*! |
AnnaBridge | 143:86740a56073b | 950 | * @brief Writes a 32-bit data word (16-bit command appended with 16-bit data) into the data |
AnnaBridge | 143:86740a56073b | 951 | * buffer master mode and waits till complete to return. |
AnnaBridge | 143:86740a56073b | 952 | * |
AnnaBridge | 143:86740a56073b | 953 | * In this function, the user must append the 16-bit data to the 16-bit command information and then provide the total 32-bit word |
AnnaBridge | 143:86740a56073b | 954 | * as the data to send. |
AnnaBridge | 143:86740a56073b | 955 | * The command portion provides characteristics of the data, such as the optional continuous chip select operation |
AnnaBridge | 143:86740a56073b | 956 | * between transfers, the desired Clock and Transfer Attributes register to use for the associated SPI frame, the desired PCS |
AnnaBridge | 143:86740a56073b | 957 | * signal to use for the data transfer, whether the current transfer is the last in the queue, and whether to clear the |
AnnaBridge | 143:86740a56073b | 958 | * transfer count (normally needed when sending the first frame of a data packet). The user is responsible for |
AnnaBridge | 143:86740a56073b | 959 | * appending this command with the data to send. This is an example: |
AnnaBridge | 143:86740a56073b | 960 | * @code |
AnnaBridge | 143:86740a56073b | 961 | * dataWord = <16-bit command> | <16-bit data>; |
AnnaBridge | 143:86740a56073b | 962 | * DSPI_MasterWriteCommandDataBlocking(base, dataWord); |
AnnaBridge | 143:86740a56073b | 963 | * @endcode |
AnnaBridge | 143:86740a56073b | 964 | * |
AnnaBridge | 143:86740a56073b | 965 | * Note that this function does not return until after the transmit is complete. Also note that the DSPI must be |
AnnaBridge | 143:86740a56073b | 966 | * enabled and running to transmit data (MCR[MDIS] & [HALT] = 0). |
AnnaBridge | 143:86740a56073b | 967 | * Because the SPI is a synchronous protocol, the received data is available when the transmit completes. |
AnnaBridge | 143:86740a56073b | 968 | * |
AnnaBridge | 143:86740a56073b | 969 | * For a blocking polling transfer, see methods below. |
AnnaBridge | 143:86740a56073b | 970 | * Option 1: |
AnnaBridge | 143:86740a56073b | 971 | * uint32_t command_to_send = DSPI_MasterGetFormattedCommand(&command); |
AnnaBridge | 143:86740a56073b | 972 | * uint32_t data0 = command_to_send | data_need_to_send_0; |
AnnaBridge | 143:86740a56073b | 973 | * uint32_t data1 = command_to_send | data_need_to_send_1; |
AnnaBridge | 143:86740a56073b | 974 | * uint32_t data2 = command_to_send | data_need_to_send_2; |
AnnaBridge | 143:86740a56073b | 975 | * |
AnnaBridge | 143:86740a56073b | 976 | * DSPI_MasterWriteCommandDataBlocking(base,data0); |
AnnaBridge | 143:86740a56073b | 977 | * DSPI_MasterWriteCommandDataBlocking(base,data1); |
AnnaBridge | 143:86740a56073b | 978 | * DSPI_MasterWriteCommandDataBlocking(base,data2); |
AnnaBridge | 143:86740a56073b | 979 | * |
AnnaBridge | 143:86740a56073b | 980 | * Option 2: |
AnnaBridge | 143:86740a56073b | 981 | * DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_0); |
AnnaBridge | 143:86740a56073b | 982 | * DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_1); |
AnnaBridge | 143:86740a56073b | 983 | * DSPI_MasterWriteDataBlocking(base,&command,data_need_to_send_2); |
AnnaBridge | 143:86740a56073b | 984 | * |
AnnaBridge | 143:86740a56073b | 985 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 986 | * @param data The data word (command and data combined) to be sent. |
AnnaBridge | 143:86740a56073b | 987 | */ |
AnnaBridge | 143:86740a56073b | 988 | void DSPI_MasterWriteCommandDataBlocking(SPI_Type *base, uint32_t data); |
AnnaBridge | 143:86740a56073b | 989 | |
AnnaBridge | 143:86740a56073b | 990 | /*! |
AnnaBridge | 143:86740a56073b | 991 | * @brief Writes data into the data buffer in slave mode. |
AnnaBridge | 143:86740a56073b | 992 | * |
AnnaBridge | 143:86740a56073b | 993 | * In slave mode, up to 16-bit words may be written. |
AnnaBridge | 143:86740a56073b | 994 | * |
AnnaBridge | 143:86740a56073b | 995 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 996 | * @param data The data to send. |
AnnaBridge | 143:86740a56073b | 997 | */ |
AnnaBridge | 143:86740a56073b | 998 | static inline void DSPI_SlaveWriteData(SPI_Type *base, uint32_t data) |
AnnaBridge | 143:86740a56073b | 999 | { |
AnnaBridge | 143:86740a56073b | 1000 | base->PUSHR_SLAVE = data; |
AnnaBridge | 143:86740a56073b | 1001 | } |
AnnaBridge | 143:86740a56073b | 1002 | |
AnnaBridge | 143:86740a56073b | 1003 | /*! |
AnnaBridge | 143:86740a56073b | 1004 | * @brief Writes data into the data buffer in slave mode, waits till data was transmitted, and returns. |
AnnaBridge | 143:86740a56073b | 1005 | * |
AnnaBridge | 143:86740a56073b | 1006 | * In slave mode, up to 16-bit words may be written. The function first clears the transmit complete flag, writes data |
AnnaBridge | 143:86740a56073b | 1007 | * into data register, and finally waits until the data is transmitted. |
AnnaBridge | 143:86740a56073b | 1008 | * |
AnnaBridge | 143:86740a56073b | 1009 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 1010 | * @param data The data to send. |
AnnaBridge | 143:86740a56073b | 1011 | */ |
AnnaBridge | 143:86740a56073b | 1012 | void DSPI_SlaveWriteDataBlocking(SPI_Type *base, uint32_t data); |
AnnaBridge | 143:86740a56073b | 1013 | |
AnnaBridge | 143:86740a56073b | 1014 | /*! |
AnnaBridge | 143:86740a56073b | 1015 | * @brief Reads data from the data buffer. |
AnnaBridge | 143:86740a56073b | 1016 | * |
AnnaBridge | 143:86740a56073b | 1017 | * @param base DSPI peripheral address. |
AnnaBridge | 143:86740a56073b | 1018 | * @return The data from the read data buffer. |
AnnaBridge | 143:86740a56073b | 1019 | */ |
AnnaBridge | 143:86740a56073b | 1020 | static inline uint32_t DSPI_ReadData(SPI_Type *base) |
AnnaBridge | 143:86740a56073b | 1021 | { |
AnnaBridge | 143:86740a56073b | 1022 | return (base->POPR); |
AnnaBridge | 143:86740a56073b | 1023 | } |
AnnaBridge | 143:86740a56073b | 1024 | |
AnnaBridge | 143:86740a56073b | 1025 | /*! |
AnnaBridge | 143:86740a56073b | 1026 | *@} |
AnnaBridge | 143:86740a56073b | 1027 | */ |
AnnaBridge | 143:86740a56073b | 1028 | |
AnnaBridge | 143:86740a56073b | 1029 | /*! |
AnnaBridge | 143:86740a56073b | 1030 | * @name Transactional |
AnnaBridge | 143:86740a56073b | 1031 | * @{ |
AnnaBridge | 143:86740a56073b | 1032 | */ |
AnnaBridge | 143:86740a56073b | 1033 | /*Transactional APIs*/ |
AnnaBridge | 143:86740a56073b | 1034 | |
AnnaBridge | 143:86740a56073b | 1035 | /*! |
AnnaBridge | 143:86740a56073b | 1036 | * @brief Initializes the DSPI master handle. |
AnnaBridge | 143:86740a56073b | 1037 | * |
AnnaBridge | 143:86740a56073b | 1038 | * This function initializes the DSPI handle, which can be used for other DSPI transactional APIs. Usually, for a |
AnnaBridge | 143:86740a56073b | 1039 | * specified DSPI instance, call this API once to get the initialized handle. |
AnnaBridge | 143:86740a56073b | 1040 | * |
AnnaBridge | 143:86740a56073b | 1041 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1042 | * @param handle DSPI handle pointer to dspi_master_handle_t. |
AnnaBridge | 143:86740a56073b | 1043 | * @param callback DSPI callback. |
AnnaBridge | 143:86740a56073b | 1044 | * @param userData Callback function parameter. |
AnnaBridge | 143:86740a56073b | 1045 | */ |
AnnaBridge | 143:86740a56073b | 1046 | void DSPI_MasterTransferCreateHandle(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 1047 | dspi_master_handle_t *handle, |
AnnaBridge | 143:86740a56073b | 1048 | dspi_master_transfer_callback_t callback, |
AnnaBridge | 143:86740a56073b | 1049 | void *userData); |
AnnaBridge | 143:86740a56073b | 1050 | |
AnnaBridge | 143:86740a56073b | 1051 | /*! |
AnnaBridge | 143:86740a56073b | 1052 | * @brief DSPI master transfer data using polling. |
AnnaBridge | 143:86740a56073b | 1053 | * |
AnnaBridge | 143:86740a56073b | 1054 | * This function transfers data using polling. This is a blocking function, which does not return until all transfers |
AnnaBridge | 143:86740a56073b | 1055 | * have been completed. |
AnnaBridge | 143:86740a56073b | 1056 | * |
AnnaBridge | 143:86740a56073b | 1057 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1058 | * @param transfer Pointer to the dspi_transfer_t structure. |
AnnaBridge | 143:86740a56073b | 1059 | * @return status of status_t. |
AnnaBridge | 143:86740a56073b | 1060 | */ |
AnnaBridge | 143:86740a56073b | 1061 | status_t DSPI_MasterTransferBlocking(SPI_Type *base, dspi_transfer_t *transfer); |
AnnaBridge | 143:86740a56073b | 1062 | |
AnnaBridge | 143:86740a56073b | 1063 | /*! |
AnnaBridge | 143:86740a56073b | 1064 | * @brief DSPI master transfer data using interrupts. |
AnnaBridge | 143:86740a56073b | 1065 | * |
AnnaBridge | 143:86740a56073b | 1066 | * This function transfers data using interrupts. This is a non-blocking function, which returns right away. When all |
AnnaBridge | 143:86740a56073b | 1067 | * data is transferred, the callback function is called. |
AnnaBridge | 143:86740a56073b | 1068 | |
AnnaBridge | 143:86740a56073b | 1069 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1070 | * @param handle Pointer to the dspi_master_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1071 | * @param transfer Pointer to the dspi_transfer_t structure. |
AnnaBridge | 143:86740a56073b | 1072 | * @return status of status_t. |
AnnaBridge | 143:86740a56073b | 1073 | */ |
AnnaBridge | 143:86740a56073b | 1074 | status_t DSPI_MasterTransferNonBlocking(SPI_Type *base, dspi_master_handle_t *handle, dspi_transfer_t *transfer); |
AnnaBridge | 143:86740a56073b | 1075 | |
AnnaBridge | 143:86740a56073b | 1076 | /*! |
AnnaBridge | 143:86740a56073b | 1077 | * @brief Gets the master transfer count. |
AnnaBridge | 143:86740a56073b | 1078 | * |
AnnaBridge | 143:86740a56073b | 1079 | * This function gets the master transfer count. |
AnnaBridge | 143:86740a56073b | 1080 | * |
AnnaBridge | 143:86740a56073b | 1081 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1082 | * @param handle Pointer to the dspi_master_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1083 | * @param count The number of bytes transferred by using the non-blocking transaction. |
AnnaBridge | 143:86740a56073b | 1084 | * @return status of status_t. |
AnnaBridge | 143:86740a56073b | 1085 | */ |
AnnaBridge | 143:86740a56073b | 1086 | status_t DSPI_MasterTransferGetCount(SPI_Type *base, dspi_master_handle_t *handle, size_t *count); |
AnnaBridge | 143:86740a56073b | 1087 | |
AnnaBridge | 143:86740a56073b | 1088 | /*! |
AnnaBridge | 143:86740a56073b | 1089 | * @brief DSPI master aborts a transfer using an interrupt. |
AnnaBridge | 143:86740a56073b | 1090 | * |
AnnaBridge | 143:86740a56073b | 1091 | * This function aborts a transfer using an interrupt. |
AnnaBridge | 143:86740a56073b | 1092 | * |
AnnaBridge | 143:86740a56073b | 1093 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1094 | * @param handle Pointer to the dspi_master_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1095 | */ |
AnnaBridge | 143:86740a56073b | 1096 | void DSPI_MasterTransferAbort(SPI_Type *base, dspi_master_handle_t *handle); |
AnnaBridge | 143:86740a56073b | 1097 | |
AnnaBridge | 143:86740a56073b | 1098 | /*! |
AnnaBridge | 143:86740a56073b | 1099 | * @brief DSPI Master IRQ handler function. |
AnnaBridge | 143:86740a56073b | 1100 | * |
AnnaBridge | 143:86740a56073b | 1101 | * This function processes the DSPI transmit and receive IRQ. |
AnnaBridge | 143:86740a56073b | 1102 | |
AnnaBridge | 143:86740a56073b | 1103 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1104 | * @param handle Pointer to the dspi_master_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1105 | */ |
AnnaBridge | 143:86740a56073b | 1106 | void DSPI_MasterTransferHandleIRQ(SPI_Type *base, dspi_master_handle_t *handle); |
AnnaBridge | 143:86740a56073b | 1107 | |
AnnaBridge | 143:86740a56073b | 1108 | /*! |
AnnaBridge | 143:86740a56073b | 1109 | * @brief Initializes the DSPI slave handle. |
AnnaBridge | 143:86740a56073b | 1110 | * |
AnnaBridge | 143:86740a56073b | 1111 | * This function initializes the DSPI handle, which can be used for other DSPI transactional APIs. Usually, for a |
AnnaBridge | 143:86740a56073b | 1112 | * specified DSPI instance, call this API once to get the initialized handle. |
AnnaBridge | 143:86740a56073b | 1113 | * |
AnnaBridge | 143:86740a56073b | 1114 | * @param handle DSPI handle pointer to the dspi_slave_handle_t. |
AnnaBridge | 143:86740a56073b | 1115 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1116 | * @param callback DSPI callback. |
AnnaBridge | 143:86740a56073b | 1117 | * @param userData Callback function parameter. |
AnnaBridge | 143:86740a56073b | 1118 | */ |
AnnaBridge | 143:86740a56073b | 1119 | void DSPI_SlaveTransferCreateHandle(SPI_Type *base, |
AnnaBridge | 143:86740a56073b | 1120 | dspi_slave_handle_t *handle, |
AnnaBridge | 143:86740a56073b | 1121 | dspi_slave_transfer_callback_t callback, |
AnnaBridge | 143:86740a56073b | 1122 | void *userData); |
AnnaBridge | 143:86740a56073b | 1123 | |
AnnaBridge | 143:86740a56073b | 1124 | /*! |
AnnaBridge | 143:86740a56073b | 1125 | * @brief DSPI slave transfers data using an interrupt. |
AnnaBridge | 143:86740a56073b | 1126 | * |
AnnaBridge | 143:86740a56073b | 1127 | * This function transfers data using an interrupt. This is a non-blocking function, which returns right away. When all |
AnnaBridge | 143:86740a56073b | 1128 | * data is transferred, the callback function is called. |
AnnaBridge | 143:86740a56073b | 1129 | * |
AnnaBridge | 143:86740a56073b | 1130 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1131 | * @param handle Pointer to the dspi_slave_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1132 | * @param transfer Pointer to the dspi_transfer_t structure. |
AnnaBridge | 143:86740a56073b | 1133 | * @return status of status_t. |
AnnaBridge | 143:86740a56073b | 1134 | */ |
AnnaBridge | 143:86740a56073b | 1135 | status_t DSPI_SlaveTransferNonBlocking(SPI_Type *base, dspi_slave_handle_t *handle, dspi_transfer_t *transfer); |
AnnaBridge | 143:86740a56073b | 1136 | |
AnnaBridge | 143:86740a56073b | 1137 | /*! |
AnnaBridge | 143:86740a56073b | 1138 | * @brief Gets the slave transfer count. |
AnnaBridge | 143:86740a56073b | 1139 | * |
AnnaBridge | 143:86740a56073b | 1140 | * This function gets the slave transfer count. |
AnnaBridge | 143:86740a56073b | 1141 | * |
AnnaBridge | 143:86740a56073b | 1142 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1143 | * @param handle Pointer to the dspi_master_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1144 | * @param count The number of bytes transferred by using the non-blocking transaction. |
AnnaBridge | 143:86740a56073b | 1145 | * @return status of status_t. |
AnnaBridge | 143:86740a56073b | 1146 | */ |
AnnaBridge | 143:86740a56073b | 1147 | status_t DSPI_SlaveTransferGetCount(SPI_Type *base, dspi_slave_handle_t *handle, size_t *count); |
AnnaBridge | 143:86740a56073b | 1148 | |
AnnaBridge | 143:86740a56073b | 1149 | /*! |
AnnaBridge | 143:86740a56073b | 1150 | * @brief DSPI slave aborts a transfer using an interrupt. |
AnnaBridge | 143:86740a56073b | 1151 | * |
AnnaBridge | 143:86740a56073b | 1152 | * This function aborts a transfer using an interrupt. |
AnnaBridge | 143:86740a56073b | 1153 | * |
AnnaBridge | 143:86740a56073b | 1154 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1155 | * @param handle Pointer to the dspi_slave_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1156 | */ |
AnnaBridge | 143:86740a56073b | 1157 | void DSPI_SlaveTransferAbort(SPI_Type *base, dspi_slave_handle_t *handle); |
AnnaBridge | 143:86740a56073b | 1158 | |
AnnaBridge | 143:86740a56073b | 1159 | /*! |
AnnaBridge | 143:86740a56073b | 1160 | * @brief DSPI Master IRQ handler function. |
AnnaBridge | 143:86740a56073b | 1161 | * |
AnnaBridge | 143:86740a56073b | 1162 | * This function processes the DSPI transmit and receive IRQ. |
AnnaBridge | 143:86740a56073b | 1163 | * |
AnnaBridge | 143:86740a56073b | 1164 | * @param base DSPI peripheral base address. |
AnnaBridge | 143:86740a56073b | 1165 | * @param handle Pointer to the dspi_slave_handle_t structure which stores the transfer state. |
AnnaBridge | 143:86740a56073b | 1166 | */ |
AnnaBridge | 143:86740a56073b | 1167 | void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle); |
AnnaBridge | 143:86740a56073b | 1168 | |
AnnaBridge | 143:86740a56073b | 1169 | /*! |
AnnaBridge | 143:86740a56073b | 1170 | *@} |
AnnaBridge | 143:86740a56073b | 1171 | */ |
AnnaBridge | 143:86740a56073b | 1172 | |
AnnaBridge | 143:86740a56073b | 1173 | #if defined(__cplusplus) |
AnnaBridge | 143:86740a56073b | 1174 | } |
AnnaBridge | 143:86740a56073b | 1175 | #endif /*_cplusplus*/ |
AnnaBridge | 143:86740a56073b | 1176 | /*! |
AnnaBridge | 143:86740a56073b | 1177 | *@} |
AnnaBridge | 143:86740a56073b | 1178 | */ |
AnnaBridge | 143:86740a56073b | 1179 | |
AnnaBridge | 143:86740a56073b | 1180 | #endif /*_FSL_DSPI_H_*/ |