MAX3100, an external serial device to add additional serial ports via SPI
MAX3100.cpp@2:2a49171453d5, 2012-08-03 (annotated)
- Committer:
- AjK
- Date:
- Fri Aug 03 12:28:27 2012 +0000
- Revision:
- 2:2a49171453d5
- Parent:
- 1:46c8c60e744a
- Child:
- 3:6304e14baed8
Add example4.h and ISR user callback code
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AjK | 0:055897ab699b | 1 | /* |
AjK | 0:055897ab699b | 2 | Copyright (c) 2011 Andy Kirkham |
AjK | 0:055897ab699b | 3 | |
AjK | 0:055897ab699b | 4 | Permission is hereby granted, free of charge, to any person obtaining a copy |
AjK | 0:055897ab699b | 5 | of this software and associated documentation files (the "Software"), to deal |
AjK | 0:055897ab699b | 6 | in the Software without restriction, including without limitation the rights |
AjK | 0:055897ab699b | 7 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
AjK | 0:055897ab699b | 8 | copies of the Software, and to permit persons to whom the Software is |
AjK | 0:055897ab699b | 9 | furnished to do so, subject to the following conditions: |
AjK | 0:055897ab699b | 10 | |
AjK | 0:055897ab699b | 11 | The above copyright notice and this permission notice shall be included in |
AjK | 0:055897ab699b | 12 | all copies or substantial portions of the Software. |
AjK | 0:055897ab699b | 13 | |
AjK | 0:055897ab699b | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
AjK | 0:055897ab699b | 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
AjK | 0:055897ab699b | 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
AjK | 0:055897ab699b | 17 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
AjK | 0:055897ab699b | 18 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
AjK | 0:055897ab699b | 19 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
AjK | 0:055897ab699b | 20 | THE SOFTWARE. |
AjK | 0:055897ab699b | 21 | */ |
AjK | 0:055897ab699b | 22 | |
AjK | 0:055897ab699b | 23 | #include "MAX3100.h" |
AjK | 0:055897ab699b | 24 | |
AjK | 0:055897ab699b | 25 | namespace AjK { |
AjK | 0:055897ab699b | 26 | |
AjK | 0:055897ab699b | 27 | void |
AjK | 0:055897ab699b | 28 | MAX3100::init(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName irq, SPI *spi) |
AjK | 0:055897ab699b | 29 | { |
AjK | 0:055897ab699b | 30 | config = 0; |
AjK | 0:055897ab699b | 31 | flushTxBuffer(); |
AjK | 0:055897ab699b | 32 | flushRxBuffer(); |
AjK | 0:055897ab699b | 33 | |
AjK | 0:055897ab699b | 34 | _parity = 0; |
AjK | 0:055897ab699b | 35 | |
AjK | 0:055897ab699b | 36 | _cs_function = NULL; |
AjK | 0:055897ab699b | 37 | _cs_obj = NULL; |
AjK | 0:055897ab699b | 38 | _cs_method = NULL; |
AjK | 0:055897ab699b | 39 | |
AjK | 2:2a49171453d5 | 40 | _isr_user_function = NULL; |
AjK | 2:2a49171453d5 | 41 | _isr_user_obj = NULL; |
AjK | 2:2a49171453d5 | 42 | _isr_user_method = NULL; |
AjK | 2:2a49171453d5 | 43 | |
AjK | 0:055897ab699b | 44 | if (cs != NC) { |
AjK | 0:055897ab699b | 45 | _cs = new DigitalOut(cs); |
AjK | 0:055897ab699b | 46 | _cs->write( 1 ); |
AjK | 0:055897ab699b | 47 | } |
AjK | 0:055897ab699b | 48 | else _cs = (DigitalOut *)NULL; |
AjK | 0:055897ab699b | 49 | |
AjK | 0:055897ab699b | 50 | if (spi) { |
AjK | 0:055897ab699b | 51 | _spi = spi; |
AjK | 0:055897ab699b | 52 | } |
AjK | 0:055897ab699b | 53 | else { |
AjK | 0:055897ab699b | 54 | _spi = new SPI(mosi, miso, sclk); |
AjK | 0:055897ab699b | 55 | _spi->format(16, 0); |
AjK | 0:055897ab699b | 56 | _spi->frequency(MAX3100_SPI_FREQ); |
AjK | 0:055897ab699b | 57 | } |
AjK | 0:055897ab699b | 58 | |
AjK | 1:46c8c60e744a | 59 | if (irq != NC) { |
AjK | 1:46c8c60e744a | 60 | irqMask(irq); |
AjK | 0:055897ab699b | 61 | _irq = new InterruptIn(irq); |
AjK | 0:055897ab699b | 62 | _irq->mode(PullUp); |
AjK | 0:055897ab699b | 63 | topic_1498(irq); |
AjK | 0:055897ab699b | 64 | _irq->fall(this, &MAX3100::isr); |
AjK | 0:055897ab699b | 65 | } |
AjK | 0:055897ab699b | 66 | else { _irq = (InterruptIn *)NULL; } |
AjK | 0:055897ab699b | 67 | |
AjK | 0:055897ab699b | 68 | baud(10); // 9600baud by default. |
AjK | 0:055897ab699b | 69 | } |
AjK | 0:055897ab699b | 70 | |
AjK | 0:055897ab699b | 71 | void |
AjK | 0:055897ab699b | 72 | MAX3100::cs_value(int i) |
AjK | 0:055897ab699b | 73 | { |
AjK | 0:055897ab699b | 74 | if (_cs != (DigitalOut *)NULL) _cs->write(i & 1); |
AjK | 0:055897ab699b | 75 | else { |
AjK | 0:055897ab699b | 76 | if (_cs_function != NULL) (*_cs_function)(_device, i & 1); |
AjK | 0:055897ab699b | 77 | else { |
AjK | 0:055897ab699b | 78 | if (_cs_obj && _cs_method) (_cs_obj->*_cs_method)(_device, i & 1); |
AjK | 0:055897ab699b | 79 | } |
AjK | 0:055897ab699b | 80 | } |
AjK | 0:055897ab699b | 81 | } |
AjK | 0:055897ab699b | 82 | |
AjK | 0:055897ab699b | 83 | uint16_t |
AjK | 0:055897ab699b | 84 | MAX3100::spiwrite(uint16_t val) |
AjK | 0:055897ab699b | 85 | { |
AjK | 0:055897ab699b | 86 | cs_value(0); |
AjK | 0:055897ab699b | 87 | uint16_t r = _spi->write(val); |
AjK | 0:055897ab699b | 88 | cs_value(1); |
AjK | 0:055897ab699b | 89 | return r; |
AjK | 0:055897ab699b | 90 | } |
AjK | 0:055897ab699b | 91 | |
AjK | 0:055897ab699b | 92 | uint16_t |
AjK | 0:055897ab699b | 93 | MAX3100::config_write(uint16_t val) |
AjK | 0:055897ab699b | 94 | { |
AjK | 0:055897ab699b | 95 | return spiwrite(MAX3100_CONF_WR | val); |
AjK | 0:055897ab699b | 96 | } |
AjK | 0:055897ab699b | 97 | |
AjK | 0:055897ab699b | 98 | uint16_t |
AjK | 0:055897ab699b | 99 | MAX3100::config_read(void) |
AjK | 0:055897ab699b | 100 | { |
AjK | 0:055897ab699b | 101 | return spiwrite(MAX3100_CONF_RD); |
AjK | 0:055897ab699b | 102 | } |
AjK | 0:055897ab699b | 103 | |
AjK | 0:055897ab699b | 104 | |
AjK | 0:055897ab699b | 105 | void |
AjK | 0:055897ab699b | 106 | MAX3100::baud(int baudrate) |
AjK | 0:055897ab699b | 107 | { |
AjK | 1:46c8c60e744a | 108 | irqDisable(); |
AjK | 0:055897ab699b | 109 | config &= ~(0xf); |
AjK | 0:055897ab699b | 110 | config |= (baudrate & 0xf); |
AjK | 0:055897ab699b | 111 | config_write(config); |
AjK | 1:46c8c60e744a | 112 | irqEnable(); |
AjK | 0:055897ab699b | 113 | } |
AjK | 0:055897ab699b | 114 | |
AjK | 0:055897ab699b | 115 | void |
AjK | 0:055897ab699b | 116 | MAX3100::enableRxIrq(void) |
AjK | 0:055897ab699b | 117 | { |
AjK | 1:46c8c60e744a | 118 | irqDisable(); |
AjK | 0:055897ab699b | 119 | config &= ~MAX3100_RM(1); |
AjK | 0:055897ab699b | 120 | config |= MAX3100_RM(1); |
AjK | 0:055897ab699b | 121 | config_write(config); |
AjK | 1:46c8c60e744a | 122 | irqEnable(); |
AjK | 0:055897ab699b | 123 | } |
AjK | 0:055897ab699b | 124 | |
AjK | 0:055897ab699b | 125 | void |
AjK | 0:055897ab699b | 126 | MAX3100::disableRxIrq(void) |
AjK | 0:055897ab699b | 127 | { |
AjK | 1:46c8c60e744a | 128 | irqDisable(); |
AjK | 0:055897ab699b | 129 | config &= ~MAX3100_RM(1); |
AjK | 0:055897ab699b | 130 | config_write(config); |
AjK | 1:46c8c60e744a | 131 | irqEnable(); |
AjK | 0:055897ab699b | 132 | } |
AjK | 0:055897ab699b | 133 | |
AjK | 0:055897ab699b | 134 | void |
AjK | 0:055897ab699b | 135 | MAX3100::enableTxIrq(void) |
AjK | 0:055897ab699b | 136 | { |
AjK | 1:46c8c60e744a | 137 | irqDisable(); |
AjK | 0:055897ab699b | 138 | config &= ~MAX3100_TM(1); |
AjK | 0:055897ab699b | 139 | config |= MAX3100_TM(1); |
AjK | 0:055897ab699b | 140 | config_write(config); |
AjK | 1:46c8c60e744a | 141 | irqEnable(); |
AjK | 0:055897ab699b | 142 | } |
AjK | 0:055897ab699b | 143 | |
AjK | 0:055897ab699b | 144 | void |
AjK | 0:055897ab699b | 145 | MAX3100::disableTxIrq(void) |
AjK | 0:055897ab699b | 146 | { |
AjK | 1:46c8c60e744a | 147 | irqDisable(); |
AjK | 0:055897ab699b | 148 | config &= ~MAX3100_TM(1); |
AjK | 0:055897ab699b | 149 | config_write(config); |
AjK | 1:46c8c60e744a | 150 | irqEnable(); |
AjK | 0:055897ab699b | 151 | } |
AjK | 0:055897ab699b | 152 | |
AjK | 0:055897ab699b | 153 | int |
AjK | 0:055897ab699b | 154 | MAX3100::putc(int c) |
AjK | 0:055897ab699b | 155 | { |
AjK | 0:055897ab699b | 156 | uint16_t data, conf; |
AjK | 0:055897ab699b | 157 | |
AjK | 0:055897ab699b | 158 | // If no space return -1 as an error code. |
AjK | 0:055897ab699b | 159 | if (tx_buffer_full) return -1; |
AjK | 0:055897ab699b | 160 | |
AjK | 0:055897ab699b | 161 | if (_parity) { |
AjK | 0:055897ab699b | 162 | int pBit = parityCal(c & 0xFF); |
AjK | 0:055897ab699b | 163 | if (_parity == Even && pBit == 0) { c |= (1 << 8); } |
AjK | 0:055897ab699b | 164 | if (_parity == Odd && pBit == 1) { c |= (1 << 8); } |
AjK | 0:055897ab699b | 165 | } |
AjK | 0:055897ab699b | 166 | else { c &= 0xFF; } |
AjK | 0:055897ab699b | 167 | |
AjK | 0:055897ab699b | 168 | // Function is non-interruptable by the MAX3100 class |
AjK | 0:055897ab699b | 169 | // to avoid SPI bus contention between writing a byte |
AjK | 0:055897ab699b | 170 | // in user context (here) and IRQ context. |
AjK | 1:46c8c60e744a | 171 | irqDisable(); |
AjK | 0:055897ab699b | 172 | |
AjK | 0:055897ab699b | 173 | conf = config_read(); |
AjK | 0:055897ab699b | 174 | |
AjK | 0:055897ab699b | 175 | if (tx_buffer_in == tx_buffer_out && conf & MAX3100_CONF_T) { |
AjK | 0:055897ab699b | 176 | data = spiwrite(MAX3100_DATA_WR | (c & 0x1FF)); |
AjK | 0:055897ab699b | 177 | // In case we get a byte while writing store it away. |
AjK | 0:055897ab699b | 178 | if (!rx_buffer_full && data & MAX3100_CONF_R) { |
AjK | 0:055897ab699b | 179 | rx_buffer[rx_buffer_in++] = (uint16_t)(data & 0xFF); |
AjK | 0:055897ab699b | 180 | if (rx_buffer_in >= MAX3100_RX_BUFFER_SIZE) rx_buffer_in = 0; |
AjK | 0:055897ab699b | 181 | if (rx_buffer_in == rx_buffer_out) rx_buffer_full = true; |
AjK | 0:055897ab699b | 182 | } |
AjK | 0:055897ab699b | 183 | } |
AjK | 0:055897ab699b | 184 | else { |
AjK | 0:055897ab699b | 185 | tx_buffer[tx_buffer_in++] = (char)(c & 0xFF); |
AjK | 0:055897ab699b | 186 | if (tx_buffer_in >= MAX3100_TX_BUFFER_SIZE) { |
AjK | 0:055897ab699b | 187 | tx_buffer_in = 0; |
AjK | 0:055897ab699b | 188 | } |
AjK | 0:055897ab699b | 189 | if (tx_buffer_in == tx_buffer_out) tx_buffer_full = true; |
AjK | 0:055897ab699b | 190 | } |
AjK | 0:055897ab699b | 191 | |
AjK | 1:46c8c60e744a | 192 | irqEnable(); |
AjK | 0:055897ab699b | 193 | |
AjK | 0:055897ab699b | 194 | return 1; |
AjK | 0:055897ab699b | 195 | } |
AjK | 0:055897ab699b | 196 | |
AjK | 0:055897ab699b | 197 | void |
AjK | 0:055897ab699b | 198 | MAX3100::puts(char *s) { |
AjK | 0:055897ab699b | 199 | char *q = s; |
AjK | 0:055897ab699b | 200 | while(*(q)) { |
AjK | 0:055897ab699b | 201 | if (putc((int)(*(q))) == -1) return; |
AjK | 0:055897ab699b | 202 | q++; |
AjK | 0:055897ab699b | 203 | } |
AjK | 0:055897ab699b | 204 | } |
AjK | 0:055897ab699b | 205 | |
AjK | 0:055897ab699b | 206 | int |
AjK | 0:055897ab699b | 207 | MAX3100::getc(void) { |
AjK | 0:055897ab699b | 208 | if (!rx_buffer_full && rx_buffer_in == rx_buffer_out) return -1; |
AjK | 0:055897ab699b | 209 | int c = (int)((unsigned char)rx_buffer[rx_buffer_out++]); |
AjK | 0:055897ab699b | 210 | if (rx_buffer_out >= MAX3100_RX_BUFFER_SIZE) rx_buffer_out = 0; |
AjK | 0:055897ab699b | 211 | rx_buffer_full = false; |
AjK | 0:055897ab699b | 212 | return c; |
AjK | 0:055897ab699b | 213 | } |
AjK | 0:055897ab699b | 214 | |
AjK | 0:055897ab699b | 215 | char * |
AjK | 0:055897ab699b | 216 | MAX3100::gets(char *s, int size) |
AjK | 0:055897ab699b | 217 | { |
AjK | 0:055897ab699b | 218 | int i; |
AjK | 0:055897ab699b | 219 | char *q = s; |
AjK | 0:055897ab699b | 220 | while(size) { |
AjK | 0:055897ab699b | 221 | do { i = getc(); } while (i == -1); // Blocks! |
AjK | 0:055897ab699b | 222 | *(q) = (char)i; size--; |
AjK | 0:055897ab699b | 223 | } |
AjK | 0:055897ab699b | 224 | return s; |
AjK | 0:055897ab699b | 225 | } |
AjK | 0:055897ab699b | 226 | |
AjK | 0:055897ab699b | 227 | int |
AjK | 0:055897ab699b | 228 | MAX3100::peek(void) { |
AjK | 0:055897ab699b | 229 | if (!rx_buffer_full && rx_buffer_in == rx_buffer_out) return -1; |
AjK | 0:055897ab699b | 230 | return (int)((unsigned char)rx_buffer[rx_buffer_out]); |
AjK | 0:055897ab699b | 231 | } |
AjK | 0:055897ab699b | 232 | |
AjK | 0:055897ab699b | 233 | void |
AjK | 0:055897ab699b | 234 | MAX3100::isr(void) { |
AjK | 0:055897ab699b | 235 | uint16_t data = spiwrite(MAX3100_DATA_RD); |
AjK | 0:055897ab699b | 236 | bool tx_ready = data & MAX3100_CONF_T ? true : false; |
AjK | 0:055897ab699b | 237 | |
AjK | 0:055897ab699b | 238 | // The MAX3100 does have an RX fifo. So attempt to empty it into the RX buffer. |
AjK | 0:055897ab699b | 239 | do { |
AjK | 0:055897ab699b | 240 | if (!rx_buffer_full && data & MAX3100_CONF_R) { |
AjK | 0:055897ab699b | 241 | rx_buffer[rx_buffer_in++] = (char)(data & 0xFF); |
AjK | 0:055897ab699b | 242 | if (rx_buffer_in >= MAX3100_RX_BUFFER_SIZE) rx_buffer_in = 0; |
AjK | 0:055897ab699b | 243 | if (rx_buffer_in == rx_buffer_out) rx_buffer_full = true; |
AjK | 0:055897ab699b | 244 | } |
AjK | 0:055897ab699b | 245 | } |
AjK | 0:055897ab699b | 246 | while ((data = spiwrite(MAX3100_DATA_RD)) & MAX3100_CONF_R); |
AjK | 0:055897ab699b | 247 | |
AjK | 0:055897ab699b | 248 | // The MAX3100 doesn't have a hardware TX fifo, so just test to see if it's TX buffer |
AjK | 0:055897ab699b | 249 | // is empty. If it is and we have bytes in the TX buffer then send one now. |
AjK | 0:055897ab699b | 250 | if (tx_ready && (tx_buffer_full || tx_buffer_in != tx_buffer_out)) { |
AjK | 0:055897ab699b | 251 | data = spiwrite(MAX3100_DATA_WR | (tx_buffer[tx_buffer_out++] & 0x1FF)); |
AjK | 0:055897ab699b | 252 | if (tx_buffer_out >= MAX3100_TX_BUFFER_SIZE) tx_buffer_out = 0; |
AjK | 0:055897ab699b | 253 | tx_buffer_full = false; |
AjK | 0:055897ab699b | 254 | } |
AjK | 0:055897ab699b | 255 | |
AjK | 0:055897ab699b | 256 | // In case we get a byte while sending then store it. |
AjK | 0:055897ab699b | 257 | if (!rx_buffer_full && data & MAX3100_CONF_R) { |
AjK | 0:055897ab699b | 258 | rx_buffer[rx_buffer_in++] = (char)(data & 0xFF); |
AjK | 0:055897ab699b | 259 | if (rx_buffer_in >= MAX3100_RX_BUFFER_SIZE) rx_buffer_in = 0; |
AjK | 0:055897ab699b | 260 | if (rx_buffer_in == rx_buffer_out) rx_buffer_full = true; |
AjK | 2:2a49171453d5 | 261 | } |
AjK | 2:2a49171453d5 | 262 | |
AjK | 2:2a49171453d5 | 263 | int isrType = MAX3100::ISR; |
AjK | 2:2a49171453d5 | 264 | |
AjK | 2:2a49171453d5 | 265 | if ( data & MAX3100_CONF_R ) { |
AjK | 2:2a49171453d5 | 266 | isrType |= MAX3100::ISR_RX; |
AjK | 2:2a49171453d5 | 267 | } |
AjK | 2:2a49171453d5 | 268 | |
AjK | 2:2a49171453d5 | 269 | if ( tx_ready ) { |
AjK | 2:2a49171453d5 | 270 | isrType |= MAX3100::ISR_TX; |
AjK | 2:2a49171453d5 | 271 | } |
AjK | 2:2a49171453d5 | 272 | |
AjK | 2:2a49171453d5 | 273 | |
AjK | 2:2a49171453d5 | 274 | if (_isr_user_function != NULL) (*_isr_user_function)( isrType ); |
AjK | 2:2a49171453d5 | 275 | else { |
AjK | 2:2a49171453d5 | 276 | if (_isr_user_obj && _isr_user_method) (_isr_user_obj->*_isr_user_method)( isrType ); |
AjK | 2:2a49171453d5 | 277 | } |
AjK | 0:055897ab699b | 278 | } |
AjK | 0:055897ab699b | 279 | |
AjK | 0:055897ab699b | 280 | void |
AjK | 0:055897ab699b | 281 | MAX3100::setStopBits(int i) |
AjK | 0:055897ab699b | 282 | { |
AjK | 0:055897ab699b | 283 | switch(i) { |
AjK | 0:055897ab699b | 284 | case 1: |
AjK | 1:46c8c60e744a | 285 | irqDisable(); |
AjK | 0:055897ab699b | 286 | config &= ~(1 << 6); |
AjK | 0:055897ab699b | 287 | config_write(config); |
AjK | 1:46c8c60e744a | 288 | irqEnable(); |
AjK | 0:055897ab699b | 289 | break; |
AjK | 0:055897ab699b | 290 | case 2: |
AjK | 1:46c8c60e744a | 291 | irqDisable(); |
AjK | 0:055897ab699b | 292 | config |= (1 << 6); |
AjK | 0:055897ab699b | 293 | config_write(config); |
AjK | 1:46c8c60e744a | 294 | irqEnable(); |
AjK | 0:055897ab699b | 295 | break; |
AjK | 0:055897ab699b | 296 | } |
AjK | 0:055897ab699b | 297 | } |
AjK | 0:055897ab699b | 298 | |
AjK | 0:055897ab699b | 299 | int |
AjK | 0:055897ab699b | 300 | MAX3100::parityCal(uint8_t c) |
AjK | 0:055897ab699b | 301 | { |
AjK | 0:055897ab699b | 302 | int count = 0; |
AjK | 0:055897ab699b | 303 | for (int mask = 1, i = 0; i < 8; i++, mask = mask << 1) { |
AjK | 0:055897ab699b | 304 | if (c & mask) count++; |
AjK | 0:055897ab699b | 305 | } |
AjK | 0:055897ab699b | 306 | return count & 1; |
AjK | 0:055897ab699b | 307 | } |
AjK | 1:46c8c60e744a | 308 | |
AjK | 1:46c8c60e744a | 309 | void |
AjK | 1:46c8c60e744a | 310 | MAX3100::irqDisable(void) |
AjK | 1:46c8c60e744a | 311 | { |
AjK | 1:46c8c60e744a | 312 | if (_irqMask0) LPC_GPIOINT->IO0IntEnF &= ~_irqMask0; |
AjK | 1:46c8c60e744a | 313 | if (_irqMask2) LPC_GPIOINT->IO2IntEnF &= ~_irqMask2; |
AjK | 1:46c8c60e744a | 314 | } |
AjK | 1:46c8c60e744a | 315 | |
AjK | 1:46c8c60e744a | 316 | void |
AjK | 1:46c8c60e744a | 317 | MAX3100::irqEnable(void) |
AjK | 1:46c8c60e744a | 318 | { |
AjK | 1:46c8c60e744a | 319 | if (_irqMask0) LPC_GPIOINT->IO0IntEnF |= _irqMask0; |
AjK | 1:46c8c60e744a | 320 | if (_irqMask2) LPC_GPIOINT->IO2IntEnF |= _irqMask2; |
AjK | 1:46c8c60e744a | 321 | } |
AjK | 1:46c8c60e744a | 322 | |
AjK | 1:46c8c60e744a | 323 | void |
AjK | 1:46c8c60e744a | 324 | MAX3100::irqMask(PinName p) |
AjK | 1:46c8c60e744a | 325 | { |
AjK | 1:46c8c60e744a | 326 | _irqMask0 = _irqMask2 = 0; |
AjK | 1:46c8c60e744a | 327 | |
AjK | 1:46c8c60e744a | 328 | switch( p ) { |
AjK | 1:46c8c60e744a | 329 | case p5: _irqMask0 = (1UL << 9); break; |
AjK | 1:46c8c60e744a | 330 | case p6: _irqMask0 = (1UL << 8); break; |
AjK | 1:46c8c60e744a | 331 | case p7: _irqMask0 = (1UL << 7); break; |
AjK | 1:46c8c60e744a | 332 | case p8: _irqMask0 = (1UL << 6); break; |
AjK | 1:46c8c60e744a | 333 | case p9: _irqMask0 = (1UL << 0); break; |
AjK | 1:46c8c60e744a | 334 | case p10: _irqMask0 = (1UL << 1); break; |
AjK | 1:46c8c60e744a | 335 | case p11: _irqMask0 = (1UL << 18); break; |
AjK | 1:46c8c60e744a | 336 | case p12: _irqMask0 = (1UL << 17); break; |
AjK | 1:46c8c60e744a | 337 | case p13: _irqMask0 = (1UL << 15); break; |
AjK | 1:46c8c60e744a | 338 | case p14: _irqMask0 = (1UL << 16); break; |
AjK | 1:46c8c60e744a | 339 | case p15: _irqMask0 = (1UL << 23); break; |
AjK | 1:46c8c60e744a | 340 | case p16: _irqMask0 = (1UL << 24); break; |
AjK | 1:46c8c60e744a | 341 | case p17: _irqMask0 = (1UL << 25); break; |
AjK | 1:46c8c60e744a | 342 | case p18: _irqMask0 = (1UL << 26); break; |
AjK | 1:46c8c60e744a | 343 | case p21: _irqMask2 = (1UL << 5); break; |
AjK | 1:46c8c60e744a | 344 | case p22: _irqMask2 = (1UL << 4); break; |
AjK | 1:46c8c60e744a | 345 | case p23: _irqMask2 = (1UL << 3); break; |
AjK | 1:46c8c60e744a | 346 | case p24: _irqMask2 = (1UL << 2); break; |
AjK | 1:46c8c60e744a | 347 | case p25: _irqMask2 = (1UL << 1); break; |
AjK | 1:46c8c60e744a | 348 | case p26: _irqMask2 = (1UL << 0); break; |
AjK | 1:46c8c60e744a | 349 | case p27: _irqMask0 = (1UL << 11); break; |
AjK | 1:46c8c60e744a | 350 | case p28: _irqMask0 = (1UL << 10); break; |
AjK | 1:46c8c60e744a | 351 | case p29: _irqMask0 = (1UL << 5); break; |
AjK | 1:46c8c60e744a | 352 | case p30: _irqMask0 = (1UL << 4); break; |
AjK | 1:46c8c60e744a | 353 | } |
AjK | 1:46c8c60e744a | 354 | } |
AjK | 0:055897ab699b | 355 | |
AjK | 0:055897ab699b | 356 | void |
AjK | 0:055897ab699b | 357 | MAX3100::topic_1498(PinName p) { |
AjK | 0:055897ab699b | 358 | // http://mbed.org/forum/bugs-suggestions/topic/1498 |
AjK | 0:055897ab699b | 359 | uint32_t clr0 = 0, clr2 = 0; |
AjK | 0:055897ab699b | 360 | |
AjK | 0:055897ab699b | 361 | switch( p ) { |
AjK | 0:055897ab699b | 362 | case p5: clr0 = (1UL << 9); break; |
AjK | 0:055897ab699b | 363 | case p6: clr0 = (1UL << 8); break; |
AjK | 0:055897ab699b | 364 | case p7: clr0 = (1UL << 7); break; |
AjK | 0:055897ab699b | 365 | case p8: clr0 = (1UL << 6); break; |
AjK | 0:055897ab699b | 366 | case p9: clr0 = (1UL << 0); break; |
AjK | 0:055897ab699b | 367 | case p10: clr0 = (1UL << 1); break; |
AjK | 0:055897ab699b | 368 | case p11: clr0 = (1UL << 18); break; |
AjK | 0:055897ab699b | 369 | case p12: clr0 = (1UL << 17); break; |
AjK | 0:055897ab699b | 370 | case p13: clr0 = (1UL << 15); break; |
AjK | 0:055897ab699b | 371 | case p14: clr0 = (1UL << 16); break; |
AjK | 0:055897ab699b | 372 | case p15: clr0 = (1UL << 23); break; |
AjK | 0:055897ab699b | 373 | case p16: clr0 = (1UL << 24); break; |
AjK | 0:055897ab699b | 374 | case p17: clr0 = (1UL << 25); break; |
AjK | 0:055897ab699b | 375 | case p18: clr0 = (1UL << 26); break; |
AjK | 0:055897ab699b | 376 | case p21: clr2 = (1UL << 5); break; |
AjK | 0:055897ab699b | 377 | case p22: clr2 = (1UL << 4); break; |
AjK | 0:055897ab699b | 378 | case p23: clr2 = (1UL << 3); break; |
AjK | 0:055897ab699b | 379 | case p24: clr2 = (1UL << 2); break; |
AjK | 0:055897ab699b | 380 | case p25: clr2 = (1UL << 1); break; |
AjK | 0:055897ab699b | 381 | case p26: clr2 = (1UL << 0); break; |
AjK | 0:055897ab699b | 382 | case p27: clr0 = (1UL << 11); break; |
AjK | 0:055897ab699b | 383 | case p28: clr0 = (1UL << 10); break; |
AjK | 0:055897ab699b | 384 | case p29: clr0 = (1UL << 5); break; |
AjK | 0:055897ab699b | 385 | case p30: clr0 = (1UL << 4); break; |
AjK | 0:055897ab699b | 386 | } |
AjK | 0:055897ab699b | 387 | |
AjK | 0:055897ab699b | 388 | if (clr0) LPC_GPIOINT->IO0IntClr = clr0; |
AjK | 0:055897ab699b | 389 | if (clr2) LPC_GPIOINT->IO2IntClr = clr2; |
AjK | 0:055897ab699b | 390 | } |
AjK | 0:055897ab699b | 391 | |
AjK | 0:055897ab699b | 392 | }; // namespace AjK ends |