mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_TT/TARGET_TT_M3HQ/spi_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 189:f392fc9709a3 1 /* mbed Microcontroller Library
AnnaBridge 189:f392fc9709a3 2 *******************************************************************************
AnnaBridge 189:f392fc9709a3 3 * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2018 All rights reserved
AnnaBridge 189:f392fc9709a3 4 * All rights reserved.
AnnaBridge 189:f392fc9709a3 5 * SPDX-License-Identifier: Apache-2.0
AnnaBridge 189:f392fc9709a3 6 * Redistribution and use in source and binary forms, with or without
AnnaBridge 189:f392fc9709a3 7 * modification, are permitted provided that the following conditions are met:
AnnaBridge 189:f392fc9709a3 8 *
AnnaBridge 189:f392fc9709a3 9 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 189:f392fc9709a3 10 * this list of conditions and the following disclaimer.
AnnaBridge 189:f392fc9709a3 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 189:f392fc9709a3 12 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 189:f392fc9709a3 13 * and/or other materials provided with the distribution.
AnnaBridge 189:f392fc9709a3 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 189:f392fc9709a3 15 * may be used to endorse or promote products derived from this software
AnnaBridge 189:f392fc9709a3 16 * without specific prior written permission.
AnnaBridge 189:f392fc9709a3 17 *
AnnaBridge 189:f392fc9709a3 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 189:f392fc9709a3 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 189:f392fc9709a3 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 189:f392fc9709a3 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 189:f392fc9709a3 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 189:f392fc9709a3 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 189:f392fc9709a3 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 189:f392fc9709a3 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 189:f392fc9709a3 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 189:f392fc9709a3 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 189:f392fc9709a3 28 *******************************************************************************
AnnaBridge 189:f392fc9709a3 29 */
AnnaBridge 189:f392fc9709a3 30 #include "spi_api.h"
AnnaBridge 189:f392fc9709a3 31 #include "mbed_error.h"
AnnaBridge 189:f392fc9709a3 32 #include "pinmap.h"
AnnaBridge 189:f392fc9709a3 33 #include "gpio_include.h"
AnnaBridge 189:f392fc9709a3 34
AnnaBridge 189:f392fc9709a3 35 static const PinMap PinMap_SPI_SCLK[] = {
AnnaBridge 189:f392fc9709a3 36 {PM0, SPI_0, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 37 {PB2, SPI_1, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 38 {PT2, SPI_2, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 39 {PP5, SPI_3, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 40 {PH4, SPI_4, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 41 {NC, NC, 0}
AnnaBridge 189:f392fc9709a3 42 };
AnnaBridge 189:f392fc9709a3 43
AnnaBridge 189:f392fc9709a3 44 static const PinMap PinMap_SPI_MOSI[] = {
AnnaBridge 189:f392fc9709a3 45 {PM1, SPI_0, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 46 {PB3, SPI_1, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 47 {PT3, SPI_2, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 48 {PP4, SPI_3, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 49 {PH5, SPI_4, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 50 {NC, NC, 0}
AnnaBridge 189:f392fc9709a3 51 };
AnnaBridge 189:f392fc9709a3 52
AnnaBridge 189:f392fc9709a3 53 static const PinMap PinMap_SPI_MISO[] = {
AnnaBridge 189:f392fc9709a3 54 {PM2, SPI_0, PIN_DATA(3, 0)},
AnnaBridge 189:f392fc9709a3 55 {PB4, SPI_1, PIN_DATA(3, 0)},
AnnaBridge 189:f392fc9709a3 56 {PT4, SPI_2, PIN_DATA(1, 0)},
AnnaBridge 189:f392fc9709a3 57 {PP3, SPI_3, PIN_DATA(1, 0)},
AnnaBridge 189:f392fc9709a3 58 {PH6, SPI_4, PIN_DATA(1, 0)},
AnnaBridge 189:f392fc9709a3 59 {NC, NC, 0}
AnnaBridge 189:f392fc9709a3 60 };
AnnaBridge 189:f392fc9709a3 61
AnnaBridge 189:f392fc9709a3 62 static const PinMap PinMap_SPI_SSEL[] = {
AnnaBridge 189:f392fc9709a3 63 {PM3, SPI_0, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 64 {PB5, SPI_1, PIN_DATA(3, 1)},
AnnaBridge 189:f392fc9709a3 65 {PT1, SPI_2, PIN_DATA(2, 1)},
AnnaBridge 189:f392fc9709a3 66 {PP6, SPI_3, PIN_DATA(1, 1)},
AnnaBridge 189:f392fc9709a3 67 {NC, NC, 0}
AnnaBridge 189:f392fc9709a3 68 };
AnnaBridge 189:f392fc9709a3 69
AnnaBridge 189:f392fc9709a3 70 void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
AnnaBridge 189:f392fc9709a3 71 {
AnnaBridge 189:f392fc9709a3 72 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 73 // Check pin parameters
AnnaBridge 189:f392fc9709a3 74 SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
AnnaBridge 189:f392fc9709a3 75 SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
AnnaBridge 189:f392fc9709a3 76 SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
AnnaBridge 189:f392fc9709a3 77 SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
AnnaBridge 189:f392fc9709a3 78 SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
AnnaBridge 189:f392fc9709a3 79 SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
AnnaBridge 189:f392fc9709a3 80
AnnaBridge 189:f392fc9709a3 81 obj->module = (SPIName)pinmap_merge(spi_data, spi_cntl);
AnnaBridge 189:f392fc9709a3 82 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 83 switch ((int)obj->module) {
AnnaBridge 189:f392fc9709a3 84 case SPI_0:
AnnaBridge 189:f392fc9709a3 85 TSB_CG_FSYSENA_IPENA11 = ENABLE;
AnnaBridge 189:f392fc9709a3 86 TSB_CG_FSYSENB_IPENB00 = ENABLE;
AnnaBridge 189:f392fc9709a3 87 spi = TSB_TSPI0;
AnnaBridge 189:f392fc9709a3 88 break;
AnnaBridge 189:f392fc9709a3 89 case SPI_1:
AnnaBridge 189:f392fc9709a3 90 TSB_CG_FSYSENA_IPENA01 = ENABLE;
AnnaBridge 189:f392fc9709a3 91 TSB_CG_FSYSENB_IPENB01 = ENABLE;
AnnaBridge 189:f392fc9709a3 92 spi = TSB_TSPI1;
AnnaBridge 189:f392fc9709a3 93 break;
AnnaBridge 189:f392fc9709a3 94 case SPI_2:
AnnaBridge 189:f392fc9709a3 95 TSB_CG_FSYSENA_IPENA15 = ENABLE;
AnnaBridge 189:f392fc9709a3 96 TSB_CG_FSYSENB_IPENB02 = ENABLE;
AnnaBridge 189:f392fc9709a3 97 spi = TSB_TSPI2;
AnnaBridge 189:f392fc9709a3 98 break;
AnnaBridge 189:f392fc9709a3 99 case SPI_3:
AnnaBridge 189:f392fc9709a3 100 TSB_CG_FSYSENA_IPENA13 = ENABLE;
AnnaBridge 189:f392fc9709a3 101 TSB_CG_FSYSENB_IPENB03 = ENABLE;
AnnaBridge 189:f392fc9709a3 102 spi = TSB_TSPI3;
AnnaBridge 189:f392fc9709a3 103 break;
AnnaBridge 189:f392fc9709a3 104 case SPI_4:
AnnaBridge 189:f392fc9709a3 105 TSB_CG_FSYSENA_IPENA07 = ENABLE;
AnnaBridge 189:f392fc9709a3 106 TSB_CG_FSYSENB_IPENB04 = ENABLE;
AnnaBridge 189:f392fc9709a3 107 spi = TSB_TSPI4;
AnnaBridge 189:f392fc9709a3 108 break;
AnnaBridge 189:f392fc9709a3 109 default:
AnnaBridge 189:f392fc9709a3 110 error("Cannot found SPI module corresponding with input pins.");
AnnaBridge 189:f392fc9709a3 111 break;
AnnaBridge 189:f392fc9709a3 112 }
AnnaBridge 189:f392fc9709a3 113 obj->spi = spi;
AnnaBridge 189:f392fc9709a3 114 // pin out the SPI pins
AnnaBridge 189:f392fc9709a3 115 pinmap_pinout(mosi, PinMap_SPI_MOSI);
AnnaBridge 189:f392fc9709a3 116 pinmap_pinout(miso, PinMap_SPI_MISO);
AnnaBridge 189:f392fc9709a3 117 pinmap_pinout(sclk, PinMap_SPI_SCLK);
AnnaBridge 189:f392fc9709a3 118
AnnaBridge 189:f392fc9709a3 119 if (ssel != NC) {
AnnaBridge 189:f392fc9709a3 120 pinmap_pinout(ssel, PinMap_SPI_SSEL);
AnnaBridge 189:f392fc9709a3 121 }
AnnaBridge 189:f392fc9709a3 122
AnnaBridge 189:f392fc9709a3 123 // TTSPI Software Reset
AnnaBridge 189:f392fc9709a3 124 spi->CR0 = TSPI_RESET10;
AnnaBridge 189:f392fc9709a3 125 spi->CR0 = TSPI_RESET01;
AnnaBridge 189:f392fc9709a3 126
AnnaBridge 189:f392fc9709a3 127 // Wait for 2 clocks of reset completion
AnnaBridge 189:f392fc9709a3 128 __NOP();
AnnaBridge 189:f392fc9709a3 129 __NOP();
AnnaBridge 189:f392fc9709a3 130
AnnaBridge 189:f392fc9709a3 131 // Enable the selected TSPI peripheral (TTSPIE)
AnnaBridge 189:f392fc9709a3 132 spi->CR0 = TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 133 spi->CR1 = 0;
AnnaBridge 189:f392fc9709a3 134 spi->CR1 = TSPI_MASTER_OPEARTION;
AnnaBridge 189:f392fc9709a3 135 spi->CR2 = 0;
AnnaBridge 189:f392fc9709a3 136 spi->CR2 = (TSPI_TIDLE_LOW | TSPI_TXDEMP_HI);
AnnaBridge 189:f392fc9709a3 137 // Format control0 Register Set
AnnaBridge 189:f392fc9709a3 138 spi->FMTR0 = (TSPI_DATA_DIRECTION_MSB | TSPI_DATA_LENGTH_8 |
AnnaBridge 189:f392fc9709a3 139 TSPI_MIN_IDLE_TIME_1);
AnnaBridge 189:f392fc9709a3 140 // Format control1 Register Set
AnnaBridge 189:f392fc9709a3 141 spi->FMTR1 = 0;
AnnaBridge 189:f392fc9709a3 142 // Enable the selected TSPI peripheral
AnnaBridge 189:f392fc9709a3 143 spi->CR0 |= TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 144 spi_frequency(obj, 1000000);
AnnaBridge 189:f392fc9709a3 145 }
AnnaBridge 189:f392fc9709a3 146
AnnaBridge 189:f392fc9709a3 147 void spi_free(spi_t *obj)
AnnaBridge 189:f392fc9709a3 148 {
AnnaBridge 189:f392fc9709a3 149 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 150
AnnaBridge 189:f392fc9709a3 151 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 152 spi->CR0 |= TSPI_DISABLE;
AnnaBridge 189:f392fc9709a3 153 spi->CR2 = TSPI_INT_ALL; // Disable all interrupt
AnnaBridge 189:f392fc9709a3 154 }
AnnaBridge 189:f392fc9709a3 155
AnnaBridge 189:f392fc9709a3 156 void spi_format(spi_t *obj, int bits, int mode, int slave)
AnnaBridge 189:f392fc9709a3 157 {
AnnaBridge 189:f392fc9709a3 158 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 159
AnnaBridge 189:f392fc9709a3 160 obj->bits = bits;
AnnaBridge 189:f392fc9709a3 161 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 162 obj->bits = bits;
AnnaBridge 189:f392fc9709a3 163 spi->CR0 |= TSPI_DISABLE;
AnnaBridge 189:f392fc9709a3 164
AnnaBridge 189:f392fc9709a3 165 if (bits >= 8 || bits <= 32) {
AnnaBridge 189:f392fc9709a3 166 spi->FMTR0 |= (bits << 24);
AnnaBridge 189:f392fc9709a3 167 } else {
AnnaBridge 189:f392fc9709a3 168 // Do nothing
AnnaBridge 189:f392fc9709a3 169 }
AnnaBridge 189:f392fc9709a3 170 spi->FMTR0 |= (((mode >> 1) & 0x1) << 14);
AnnaBridge 189:f392fc9709a3 171 spi->FMTR0 |= ((mode & 0x01) << 15);
AnnaBridge 189:f392fc9709a3 172 spi->CR0 |= TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 173 }
AnnaBridge 189:f392fc9709a3 174
AnnaBridge 189:f392fc9709a3 175 void spi_frequency(spi_t *obj, int hz)
AnnaBridge 189:f392fc9709a3 176 {
AnnaBridge 189:f392fc9709a3 177 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 178 int clk_div = 1;
AnnaBridge 189:f392fc9709a3 179 uint32_t clocks = ((SystemCoreClock / 2) / hz);
AnnaBridge 189:f392fc9709a3 180 obj->spi->CR0 |= TSPI_DISABLE;
AnnaBridge 189:f392fc9709a3 181
AnnaBridge 189:f392fc9709a3 182 while (clk_div < 10) {
AnnaBridge 189:f392fc9709a3 183 if (clocks < 16) {
AnnaBridge 189:f392fc9709a3 184 break;
AnnaBridge 189:f392fc9709a3 185 }
AnnaBridge 189:f392fc9709a3 186 clk_div++;
AnnaBridge 189:f392fc9709a3 187 clocks >>= 1;
AnnaBridge 189:f392fc9709a3 188 }
AnnaBridge 189:f392fc9709a3 189 clk_div--;
AnnaBridge 189:f392fc9709a3 190 if (clk_div == 0) {
AnnaBridge 189:f392fc9709a3 191 clocks++;
AnnaBridge 189:f392fc9709a3 192 }
AnnaBridge 189:f392fc9709a3 193 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 194 spi->CR0 |= TSPI_DISABLE;
AnnaBridge 189:f392fc9709a3 195 spi->BR = ((clk_div << 4) | clocks);
AnnaBridge 189:f392fc9709a3 196 spi->CR0 |= TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 197 }
AnnaBridge 189:f392fc9709a3 198
AnnaBridge 189:f392fc9709a3 199 int spi_master_write(spi_t *obj, int value)
AnnaBridge 189:f392fc9709a3 200 {
AnnaBridge 189:f392fc9709a3 201 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 202 MBED_ASSERT(obj != NULL);
AnnaBridge 189:f392fc9709a3 203 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 204 spi->CR3 |= TSPI_TX_BUFF_CLR_DONE; // FIFO Cear
AnnaBridge 189:f392fc9709a3 205 // Check if the TSPI is already enabled
AnnaBridge 189:f392fc9709a3 206 if((spi->CR0 & TSPI_ENABLE) != TSPI_ENABLE) {
AnnaBridge 189:f392fc9709a3 207 spi->CR0 |= TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 208 }
AnnaBridge 189:f392fc9709a3 209 // Enable TSPI Transmission Control
AnnaBridge 189:f392fc9709a3 210 spi->CR1 |= TSPI_TRXE_ENABLE;
AnnaBridge 189:f392fc9709a3 211 // Check the current fill level
AnnaBridge 189:f392fc9709a3 212 if(((spi->SR & TSPI_TX_REACH_FILL_LEVEL_MASK) >> 16) <= 7) {
AnnaBridge 189:f392fc9709a3 213 do {
AnnaBridge 189:f392fc9709a3 214 spi->DR = (value & TSPI_DR_8BIT_MASK);
AnnaBridge 189:f392fc9709a3 215 // check complete transmit
AnnaBridge 189:f392fc9709a3 216 } while ((spi->SR & TSPI_TX_DONE_FLAG) != TSPI_TX_DONE);
AnnaBridge 189:f392fc9709a3 217 spi->CR3 |= TSPI_TX_BUFF_CLR_DONE;
AnnaBridge 189:f392fc9709a3 218 spi->CR1 &= TSPI_TRXE_DISABLE_MASK;
AnnaBridge 189:f392fc9709a3 219 }
AnnaBridge 189:f392fc9709a3 220 if((spi->CR1 & TSPI_Transfer_Mode_MASK) == TSPI_RX_ONLY) {
AnnaBridge 189:f392fc9709a3 221 // Enable TSPI Transmission Control
AnnaBridge 189:f392fc9709a3 222 spi->CR1 |= TSPI_TRXE_ENABLE;
AnnaBridge 189:f392fc9709a3 223 }
AnnaBridge 189:f392fc9709a3 224 // Check if the TSPI is already enabled
AnnaBridge 189:f392fc9709a3 225 if((spi->CR0 & TSPI_ENABLE) != TSPI_ENABLE) {
AnnaBridge 189:f392fc9709a3 226 // Enable TSPI Transmission Control
AnnaBridge 189:f392fc9709a3 227 spi->CR0 |= TSPI_ENABLE;
AnnaBridge 189:f392fc9709a3 228 }
AnnaBridge 189:f392fc9709a3 229 value = 0;
AnnaBridge 189:f392fc9709a3 230 // Wait until Receive Complete Flag is set to receive data
AnnaBridge 189:f392fc9709a3 231 if((spi->SR & TSPI_RX_DONE_FLAG) == TSPI_RX_DONE) {
AnnaBridge 189:f392fc9709a3 232 // Check the remain data exist
AnnaBridge 189:f392fc9709a3 233 if((spi->SR & TSPI_RX_REACH_FILL_LEVEL_MASK) != 0) {
AnnaBridge 189:f392fc9709a3 234 value = (spi->DR & TSPI_DR_8BIT_MASK);
AnnaBridge 189:f392fc9709a3 235 }
AnnaBridge 189:f392fc9709a3 236 spi->SR |= TSPI_RX_DONE_CLR; // Receive Complete Flag is clear
AnnaBridge 189:f392fc9709a3 237 spi->CR2 |= TSPI_RX_BUFF_CLR_DONE; // FIFO Clear
AnnaBridge 189:f392fc9709a3 238 spi->CR1 &= TSPI_TRXE_DISABLE_MASK;
AnnaBridge 189:f392fc9709a3 239 }
AnnaBridge 189:f392fc9709a3 240 return value;
AnnaBridge 189:f392fc9709a3 241 }
AnnaBridge 189:f392fc9709a3 242
AnnaBridge 189:f392fc9709a3 243 int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length,
AnnaBridge 189:f392fc9709a3 244 char *rx_buffer, int rx_length, char write_fill)
AnnaBridge 189:f392fc9709a3 245 {
AnnaBridge 189:f392fc9709a3 246 int total = (tx_length > rx_length) ? tx_length : rx_length;
AnnaBridge 189:f392fc9709a3 247
AnnaBridge 189:f392fc9709a3 248 for (int i = 0; i < total; i++) {
AnnaBridge 189:f392fc9709a3 249 char out = (i < tx_length) ? tx_buffer[i] : write_fill;
AnnaBridge 189:f392fc9709a3 250 char in = spi_master_write(obj, out);
AnnaBridge 189:f392fc9709a3 251 if (i < rx_length) {
AnnaBridge 189:f392fc9709a3 252 rx_buffer[i] = in;
AnnaBridge 189:f392fc9709a3 253 }
AnnaBridge 189:f392fc9709a3 254 }
AnnaBridge 189:f392fc9709a3 255
AnnaBridge 189:f392fc9709a3 256 return total;
AnnaBridge 189:f392fc9709a3 257 }
AnnaBridge 189:f392fc9709a3 258
AnnaBridge 189:f392fc9709a3 259 int spi_busy(spi_t *obj)
AnnaBridge 189:f392fc9709a3 260 {
AnnaBridge 189:f392fc9709a3 261 TSB_TSPI_TypeDef* spi;
AnnaBridge 189:f392fc9709a3 262 uint8_t result = 0;
AnnaBridge 189:f392fc9709a3 263
AnnaBridge 189:f392fc9709a3 264 spi = obj->spi;
AnnaBridge 189:f392fc9709a3 265 if( (spi->SR & (1<<7)) || (spi->SR & (1<<23))) {
AnnaBridge 189:f392fc9709a3 266 result = 1;
AnnaBridge 189:f392fc9709a3 267 } else {
AnnaBridge 189:f392fc9709a3 268 result = 0;
AnnaBridge 189:f392fc9709a3 269 }
AnnaBridge 189:f392fc9709a3 270 return result;
AnnaBridge 189:f392fc9709a3 271 }
AnnaBridge 189:f392fc9709a3 272
AnnaBridge 189:f392fc9709a3 273 uint8_t spi_get_module(spi_t *obj)
AnnaBridge 189:f392fc9709a3 274 {
AnnaBridge 189:f392fc9709a3 275 return (uint8_t)(obj->module);
AnnaBridge 189:f392fc9709a3 276 }