Wim Huiskamp / PT6315

PT6315 VFD driver. Supports DVDR3510.

Dependents:   mbed_PT6315

PT6315.cpp@0:d93c23711ca8, 2016-01-20 (annotated)

Committer:
wim
Date:
Wed Jan 20 19:24:17 2016 +0000
Revision:
0:d93c23711ca8
PT6315 VFD driver library. Supports DVDR3510. First release.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wim 0:d93c23711ca8 1 /* mbed PT6315 Library, for Princeton PT6315 VFD controller
wim 0:d93c23711ca8 2 * Copyright (c) 2016, v01: WH, Initial version, for DVDR3510 code
wim 0:d93c23711ca8 3 *
wim 0:d93c23711ca8 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
wim 0:d93c23711ca8 5 * of this software and associated documentation files (the "Software"), to deal
wim 0:d93c23711ca8 6 * in the Software without restriction, including without limitation the rights
wim 0:d93c23711ca8 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
wim 0:d93c23711ca8 8 * copies of the Software, and to permit persons to whom the Software is
wim 0:d93c23711ca8 9 * furnished to do so, subject to the following conditions:
wim 0:d93c23711ca8 10 *
wim 0:d93c23711ca8 11 * The above copyright notice and this permission notice shall be included in
wim 0:d93c23711ca8 12 * all copies or substantial portions of the Software.
wim 0:d93c23711ca8 13 *
wim 0:d93c23711ca8 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
wim 0:d93c23711ca8 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
wim 0:d93c23711ca8 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
wim 0:d93c23711ca8 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
wim 0:d93c23711ca8 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wim 0:d93c23711ca8 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
wim 0:d93c23711ca8 20 * THE SOFTWARE.
wim 0:d93c23711ca8 21 */
wim 0:d93c23711ca8 22 #include "mbed.h"
wim 0:d93c23711ca8 23 #include "PT6315.h"
wim 0:d93c23711ca8 24
wim 0:d93c23711ca8 25 /** Constructor for class for driving Princeton PT6315 VFD controller
wim 0:d93c23711ca8 26 *
wim 0:d93c23711ca8 27 * @brief Supports 4 Grids of 24 Segments upto 12 Grids of 16 Segments. Also supports a scanned keyboard of upto 32 keys and 4 LEDs.
wim 0:d93c23711ca8 28 * SPI bus interface device.
wim 0:d93c23711ca8 29 *
wim 0:d93c23711ca8 30 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:d93c23711ca8 31 * @param Mode selects either number of Digits and Segments
wim 0:d93c23711ca8 32 */
wim 0:d93c23711ca8 33 PT6315::PT6315(PinName mosi, PinName miso, PinName sclk, PinName cs, Mode mode) : _spi(mosi,miso,sclk), _cs(cs), _mode(mode) {
wim 0:d93c23711ca8 34
wim 0:d93c23711ca8 35 _init();
wim 0:d93c23711ca8 36 }
wim 0:d93c23711ca8 37
wim 0:d93c23711ca8 38 /** Init the SPI interface and the controller
wim 0:d93c23711ca8 39 * @param none
wim 0:d93c23711ca8 40 * @return none
wim 0:d93c23711ca8 41 */
wim 0:d93c23711ca8 42 void PT6315::_init(){
wim 0:d93c23711ca8 43
wim 0:d93c23711ca8 44 //init SPI
wim 0:d93c23711ca8 45 _cs=1;
wim 0:d93c23711ca8 46 _spi.format(8,3); //PT6315 uses mode 3 (Clock High on Idle, Data latched on second (=rising) edge)
wim 0:d93c23711ca8 47 // _spi.frequency(100000);
wim 0:d93c23711ca8 48 _spi.frequency(500000);
wim 0:d93c23711ca8 49
wim 0:d93c23711ca8 50 //init controller
wim 0:d93c23711ca8 51 _writeCmd(PT6315_MODE_SET_CMD, _mode); // Mode set command
wim 0:d93c23711ca8 52
wim 0:d93c23711ca8 53 _display = PT6315_DSP_ON;
wim 0:d93c23711ca8 54 _bright = PT6315_BRT_DEF;
wim 0:d93c23711ca8 55 _writeCmd(PT6315_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness
wim 0:d93c23711ca8 56
wim 0:d93c23711ca8 57 _writeCmd(PT6315_DATA_SET_CMD, PT6315_DATA_WR | PT6315_ADDR_INC | PT6315_MODE_NORM); // Data set cmd, normal mode, auto incr, write data
wim 0:d93c23711ca8 58 }
wim 0:d93c23711ca8 59
wim 0:d93c23711ca8 60
wim 0:d93c23711ca8 61 /** Clear the screen and locate to 0
wim 0:d93c23711ca8 62 */
wim 0:d93c23711ca8 63 void PT6315::cls() {
wim 0:d93c23711ca8 64
wim 0:d93c23711ca8 65 _cs=0;
wim 0:d93c23711ca8 66 wait_us(1);
wim 0:d93c23711ca8 67 _spi.write(_flip(PT6315_ADDR_SET_CMD | 0x00)); // Address set cmd, 0
wim 0:d93c23711ca8 68
wim 0:d93c23711ca8 69 for (int cnt=0; cnt<PT6315_DISPLAY_MEM; cnt++) {
wim 0:d93c23711ca8 70 _spi.write(0x00); // data
wim 0:d93c23711ca8 71 }
wim 0:d93c23711ca8 72
wim 0:d93c23711ca8 73 wait_us(1);
wim 0:d93c23711ca8 74 _cs=1;
wim 0:d93c23711ca8 75
wim 0:d93c23711ca8 76 }
wim 0:d93c23711ca8 77
wim 0:d93c23711ca8 78 /** Set Brightness
wim 0:d93c23711ca8 79 *
wim 0:d93c23711ca8 80 * @param char brightness (3 significant bits, valid range 0..7 (1/16 .. 14/14 dutycycle)
wim 0:d93c23711ca8 81 * @return none
wim 0:d93c23711ca8 82 */
wim 0:d93c23711ca8 83 void PT6315::setBrightness(char brightness){
wim 0:d93c23711ca8 84
wim 0:d93c23711ca8 85 _bright = brightness & PT6315_BRT_MSK; // mask invalid bits
wim 0:d93c23711ca8 86
wim 0:d93c23711ca8 87 _writeCmd(PT6315_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness
wim 0:d93c23711ca8 88
wim 0:d93c23711ca8 89 }
wim 0:d93c23711ca8 90
wim 0:d93c23711ca8 91 /** Set the Display mode On/off
wim 0:d93c23711ca8 92 *
wim 0:d93c23711ca8 93 * @param bool display mode
wim 0:d93c23711ca8 94 */
wim 0:d93c23711ca8 95 void PT6315::setDisplay(bool on) {
wim 0:d93c23711ca8 96
wim 0:d93c23711ca8 97 if (on) {
wim 0:d93c23711ca8 98 _display = PT6315_DSP_ON;
wim 0:d93c23711ca8 99 }
wim 0:d93c23711ca8 100 else {
wim 0:d93c23711ca8 101 _display = PT6315_DSP_OFF;
wim 0:d93c23711ca8 102 }
wim 0:d93c23711ca8 103
wim 0:d93c23711ca8 104 _writeCmd(PT6315_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness
wim 0:d93c23711ca8 105 }
wim 0:d93c23711ca8 106
wim 0:d93c23711ca8 107 /** Write databyte to PT6315
wim 0:d93c23711ca8 108 * @param int address display memory location to write byte
wim 0:d93c23711ca8 109 * @param char data byte written at given address
wim 0:d93c23711ca8 110 * @return none
wim 0:d93c23711ca8 111 */
wim 0:d93c23711ca8 112 void PT6315::writeData(int address, char data) {
wim 0:d93c23711ca8 113 _cs=0;
wim 0:d93c23711ca8 114 wait_us(1);
wim 0:d93c23711ca8 115 _spi.write(_flip(PT6315_ADDR_SET_CMD | (address & PT6315_ADDR_MSK))); // Set Address cmd
wim 0:d93c23711ca8 116
wim 0:d93c23711ca8 117 _spi.write(_flip(data)); // data
wim 0:d93c23711ca8 118
wim 0:d93c23711ca8 119 wait_us(1);
wim 0:d93c23711ca8 120 _cs=1;
wim 0:d93c23711ca8 121
wim 0:d93c23711ca8 122 }
wim 0:d93c23711ca8 123
wim 0:d93c23711ca8 124 /** Write Display datablock to PT6315
wim 0:d93c23711ca8 125 * @param DisplayData_t data Array of PT6315_DISPLAY_MEM (=48) bytes for displaydata (starting at address 0)
wim 0:d93c23711ca8 126 * @param length number bytes to write (valid range 0..PT6315_DISPLAY_MEM (=48), starting at address 0)
wim 0:d93c23711ca8 127 * @return none
wim 0:d93c23711ca8 128 */
wim 0:d93c23711ca8 129 void PT6315::writeData(DisplayData_t data, int length) {
wim 0:d93c23711ca8 130 _cs=0;
wim 0:d93c23711ca8 131 wait_us(1);
wim 0:d93c23711ca8 132 _spi.write(_flip(PT6315_ADDR_SET_CMD | 0x00)); // Set Address at 0
wim 0:d93c23711ca8 133
wim 0:d93c23711ca8 134 // sanity check
wim 0:d93c23711ca8 135 if (length < 0) {length = 0;}
wim 0:d93c23711ca8 136 if (length > PT6315_DISPLAY_MEM) {length = PT6315_DISPLAY_MEM;}
wim 0:d93c23711ca8 137
wim 0:d93c23711ca8 138 // for (int idx=0; idx<PT6315_DISPLAY_MEM; idx++) {
wim 0:d93c23711ca8 139 for (int idx=0; idx<length; idx++) {
wim 0:d93c23711ca8 140 _spi.write(_flip(data[idx])); // data
wim 0:d93c23711ca8 141 }
wim 0:d93c23711ca8 142
wim 0:d93c23711ca8 143 wait_us(1);
wim 0:d93c23711ca8 144 _cs=1;
wim 0:d93c23711ca8 145
wim 0:d93c23711ca8 146 }
wim 0:d93c23711ca8 147
wim 0:d93c23711ca8 148 /** Read keydata block from PT6315
wim 0:d93c23711ca8 149 * @param *keydata Ptr to Array of PT6315_KEY_MEM (=4) bytes for keydata
wim 0:d93c23711ca8 150 * @return bool keypress True when at least one key was pressed
wim 0:d93c23711ca8 151 *
wim 0:d93c23711ca8 152 * Note: Due to the hardware configuration the PT6315 key matrix scanner will detect multiple keys pressed at same time,
wim 0:d93c23711ca8 153 * but this may also result in some spurious keys being set in keypress data array.
wim 0:d93c23711ca8 154 * It may be best to ignore all keys in those situations. That option is implemented in this method depending on #define setting.
wim 0:d93c23711ca8 155 */
wim 0:d93c23711ca8 156 bool PT6315::getKeys(KeyData_t *keydata) {
wim 0:d93c23711ca8 157 int keypress = 0;
wim 0:d93c23711ca8 158 char data;
wim 0:d93c23711ca8 159
wim 0:d93c23711ca8 160 // Read keys
wim 0:d93c23711ca8 161 _cs=0;
wim 0:d93c23711ca8 162 wait_us(1);
wim 0:d93c23711ca8 163
wim 0:d93c23711ca8 164 // Enable Key Read mode
wim 0:d93c23711ca8 165 _spi.write(_flip(PT6315_DATA_SET_CMD | PT6315_KEY_RD | PT6315_ADDR_INC | PT6315_MODE_NORM)); // Data set cmd, normal mode, auto incr, read data
wim 0:d93c23711ca8 166
wim 0:d93c23711ca8 167 for (int idx=0; idx < PT6315_KEY_MEM; idx++) {
wim 0:d93c23711ca8 168 data = _flip(_spi.write(0xFF)); // read keys and correct bitorder
wim 0:d93c23711ca8 169
wim 0:d93c23711ca8 170 data = data & PT6315_KEY_MSK; // Mask valid bits
wim 0:d93c23711ca8 171 if (data != 0) { // Check for any pressed key
wim 0:d93c23711ca8 172 for (int bit=0; bit < 8; bit++) {
wim 0:d93c23711ca8 173 if (data & (1 << bit)) {keypress++;} // Test all significant bits
wim 0:d93c23711ca8 174 }
wim 0:d93c23711ca8 175 }
wim 0:d93c23711ca8 176
wim 0:d93c23711ca8 177 (*keydata)[idx] = data; // Store keydata after correcting bitorder
wim 0:d93c23711ca8 178 }
wim 0:d93c23711ca8 179
wim 0:d93c23711ca8 180 wait_us(1);
wim 0:d93c23711ca8 181 _cs=1;
wim 0:d93c23711ca8 182
wim 0:d93c23711ca8 183 // Restore Data Write mode
wim 0:d93c23711ca8 184 _writeCmd(PT6315_DATA_SET_CMD, PT6315_DATA_WR | PT6315_ADDR_INC | PT6315_MODE_NORM); // Data set cmd, normal mode, auto incr, write data
wim 0:d93c23711ca8 185
wim 0:d93c23711ca8 186 #if(1)
wim 0:d93c23711ca8 187 // Dismiss multiple keypresses at same time
wim 0:d93c23711ca8 188 return (keypress == 1);
wim 0:d93c23711ca8 189 #else
wim 0:d93c23711ca8 190 // Allow multiple keypress and accept possible spurious keys
wim 0:d93c23711ca8 191 return (keypress > 0);
wim 0:d93c23711ca8 192 #endif
wim 0:d93c23711ca8 193 }
wim 0:d93c23711ca8 194
wim 0:d93c23711ca8 195 /** Set LEDs
wim 0:d93c23711ca8 196 *
wim 0:d93c23711ca8 197 * @param char leds (4 least significant bits)
wim 0:d93c23711ca8 198 * @return none
wim 0:d93c23711ca8 199 */
wim 0:d93c23711ca8 200 void PT6315::setLED (char leds) {
wim 0:d93c23711ca8 201
wim 0:d93c23711ca8 202 // Set LEDs
wim 0:d93c23711ca8 203 _cs=0;
wim 0:d93c23711ca8 204 wait_us(1);
wim 0:d93c23711ca8 205
wim 0:d93c23711ca8 206 // Enable LED Write mode
wim 0:d93c23711ca8 207 _spi.write(_flip(PT6315_DATA_SET_CMD | PT6315_LED_WR | PT6315_ADDR_INC | PT6315_MODE_NORM)); // Data set cmd, normal mode, auto incr, write data
wim 0:d93c23711ca8 208
wim 0:d93c23711ca8 209 _spi.write(_flip(leds & PT6315_LED_MSK)); // write LEDs in correct bitorder
wim 0:d93c23711ca8 210
wim 0:d93c23711ca8 211 wait_us(1);
wim 0:d93c23711ca8 212 _cs=1;
wim 0:d93c23711ca8 213
wim 0:d93c23711ca8 214 // Restore Data Write mode
wim 0:d93c23711ca8 215 _writeCmd(PT6315_DATA_SET_CMD, PT6315_DATA_WR | PT6315_ADDR_INC | PT6315_MODE_NORM); // Data set cmd, normal mode, auto incr, write data
wim 0:d93c23711ca8 216 }
wim 0:d93c23711ca8 217
wim 0:d93c23711ca8 218
wim 0:d93c23711ca8 219
wim 0:d93c23711ca8 220 /** Helper to reverse all command or databits. The PT6315 expects LSB first, whereas SPI is MSB first
wim 0:d93c23711ca8 221 * @param char data
wim 0:d93c23711ca8 222 * @return bitreversed data
wim 0:d93c23711ca8 223 */
wim 0:d93c23711ca8 224 char PT6315::_flip(char data) {
wim 0:d93c23711ca8 225 char value=0;
wim 0:d93c23711ca8 226
wim 0:d93c23711ca8 227 if (data & 0x01) {value |= 0x80;} ;
wim 0:d93c23711ca8 228 if (data & 0x02) {value |= 0x40;} ;
wim 0:d93c23711ca8 229 if (data & 0x04) {value |= 0x20;} ;
wim 0:d93c23711ca8 230 if (data & 0x08) {value |= 0x10;} ;
wim 0:d93c23711ca8 231 if (data & 0x10) {value |= 0x08;} ;
wim 0:d93c23711ca8 232 if (data & 0x20) {value |= 0x04;} ;
wim 0:d93c23711ca8 233 if (data & 0x40) {value |= 0x02;} ;
wim 0:d93c23711ca8 234 if (data & 0x80) {value |= 0x01;} ;
wim 0:d93c23711ca8 235 return value;
wim 0:d93c23711ca8 236 }
wim 0:d93c23711ca8 237
wim 0:d93c23711ca8 238
wim 0:d93c23711ca8 239 /** Write command and parameter to PT6315
wim 0:d93c23711ca8 240 * @param int cmd Command byte
wim 0:d93c23711ca8 241 * &Param int data Parameters for command
wim 0:d93c23711ca8 242 * @return none
wim 0:d93c23711ca8 243 */
wim 0:d93c23711ca8 244 void PT6315::_writeCmd(int cmd, int data){
wim 0:d93c23711ca8 245
wim 0:d93c23711ca8 246 _cs=0;
wim 0:d93c23711ca8 247 wait_us(1);
wim 0:d93c23711ca8 248
wim 0:d93c23711ca8 249 _spi.write(_flip( (cmd & PT6315_CMD_MSK) | (data & ~PT6315_CMD_MSK)));
wim 0:d93c23711ca8 250
wim 0:d93c23711ca8 251 wait_us(1);
wim 0:d93c23711ca8 252 _cs=1;
wim 0:d93c23711ca8 253
wim 0:d93c23711ca8 254 };
wim 0:d93c23711ca8 255
wim 0:d93c23711ca8 256
wim 0:d93c23711ca8 257
wim 0:d93c23711ca8 258 #if (DVDR3510_TEST == 1)
wim 0:d93c23711ca8 259 /** Constructor for class for driving Princeton PT6315 VFD controller as used in DVDR3510
wim 0:d93c23711ca8 260 *
wim 0:d93c23711ca8 261 * @brief Supports 11 Grids of 17 Segments and Icons (8 digits of 14 Segments plus some icons).
wim 0:d93c23711ca8 262 * Also supports a scanned keyboard of 11 keys and 1 LED.
wim 0:d93c23711ca8 263 *
wim 0:d93c23711ca8 264 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:d93c23711ca8 265 */
wim 0:d93c23711ca8 266 PT6315_DVDR3510::PT6315_DVDR3510(PinName mosi, PinName miso, PinName sclk, PinName cs) : PT6315(mosi, miso, sclk, cs, Grid11_Seg17) {
wim 0:d93c23711ca8 267 _column = 0;
wim 0:d93c23711ca8 268 _columns = DVDR3510_NR_DIGITS;
wim 0:d93c23711ca8 269 }
wim 0:d93c23711ca8 270
wim 0:d93c23711ca8 271 #if(0)
wim 0:d93c23711ca8 272 #if DOXYGEN_ONLY
wim 0:d93c23711ca8 273 /** Write a character to the LCD
wim 0:d93c23711ca8 274 *
wim 0:d93c23711ca8 275 * @param c The character to write to the display
wim 0:d93c23711ca8 276 */
wim 0:d93c23711ca8 277 int putc(int c);
wim 0:d93c23711ca8 278
wim 0:d93c23711ca8 279 /** Write a formatted string to the LCD
wim 0:d93c23711ca8 280 *
wim 0:d93c23711ca8 281 * @param format A printf-style format string, followed by the
wim 0:d93c23711ca8 282 * variables to use in formatting the string.
wim 0:d93c23711ca8 283 */
wim 0:d93c23711ca8 284 int printf(const char* format, ...);
wim 0:d93c23711ca8 285 #endif
wim 0:d93c23711ca8 286 #endif
wim 0:d93c23711ca8 287
wim 0:d93c23711ca8 288 /** Locate cursor to a screen column
wim 0:d93c23711ca8 289 *
wim 0:d93c23711ca8 290 * @param column The horizontal position from the left, indexed from 0
wim 0:d93c23711ca8 291 */
wim 0:d93c23711ca8 292 void PT6315_DVDR3510::locate(int column) {
wim 0:d93c23711ca8 293 //sanity check
wim 0:d93c23711ca8 294 if (column < 0) {column = 0;}
wim 0:d93c23711ca8 295 if (column > (_columns - 1)) {column = _columns - 1;}
wim 0:d93c23711ca8 296
wim 0:d93c23711ca8 297 _column = column;
wim 0:d93c23711ca8 298 }
wim 0:d93c23711ca8 299
wim 0:d93c23711ca8 300
wim 0:d93c23711ca8 301 /** Number of screen columns
wim 0:d93c23711ca8 302 *
wim 0:d93c23711ca8 303 * @param none
wim 0:d93c23711ca8 304 * @return columns
wim 0:d93c23711ca8 305 */
wim 0:d93c23711ca8 306 int PT6315_DVDR3510::columns() {
wim 0:d93c23711ca8 307 return _columns;
wim 0:d93c23711ca8 308 }
wim 0:d93c23711ca8 309
wim 0:d93c23711ca8 310
wim 0:d93c23711ca8 311 /** Clear the screen and locate to 0
wim 0:d93c23711ca8 312 * @param bool clrAll Clear Icons also (default = false)
wim 0:d93c23711ca8 313 */
wim 0:d93c23711ca8 314 void PT6315_DVDR3510::cls(bool clrAll) {
wim 0:d93c23711ca8 315 int idx;
wim 0:d93c23711ca8 316
wim 0:d93c23711ca8 317 if (clrAll) {
wim 0:d93c23711ca8 318 //clear local buffer (including Icons)
wim 0:d93c23711ca8 319 for (idx=0; idx < (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID); idx++) {
wim 0:d93c23711ca8 320 _displaybuffer[idx] = 0x00;
wim 0:d93c23711ca8 321 }
wim 0:d93c23711ca8 322 }
wim 0:d93c23711ca8 323 else {
wim 0:d93c23711ca8 324 //clear local buffer (preserving Icons)
wim 0:d93c23711ca8 325 for (int grd=0; grd < DVDR3510_NR_GRIDS; grd++) {
wim 0:d93c23711ca8 326 idx = grd * PT6315_BYTES_PER_GRID; // 3 bytes for every Grid
wim 0:d93c23711ca8 327 _displaybuffer[idx ] = _displaybuffer[idx ] & MASK_ICON_GRID[grd][0];
wim 0:d93c23711ca8 328 _displaybuffer[idx + 1] = _displaybuffer[idx + 1] & MASK_ICON_GRID[grd][1];
wim 0:d93c23711ca8 329 _displaybuffer[idx + 2] = _displaybuffer[idx + 2] & MASK_ICON_GRID[grd][2];
wim 0:d93c23711ca8 330 }
wim 0:d93c23711ca8 331 }
wim 0:d93c23711ca8 332
wim 0:d93c23711ca8 333 writeData(_displaybuffer, (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID));
wim 0:d93c23711ca8 334
wim 0:d93c23711ca8 335 _column = 0;
wim 0:d93c23711ca8 336 }
wim 0:d93c23711ca8 337
wim 0:d93c23711ca8 338 /** Set Icon
wim 0:d93c23711ca8 339 *
wim 0:d93c23711ca8 340 * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 24 LSBs
wim 0:d93c23711ca8 341 * @return none
wim 0:d93c23711ca8 342 */
wim 0:d93c23711ca8 343 void PT6315_DVDR3510::setIcon(Icon icon) {
wim 0:d93c23711ca8 344 int addr, icn;
wim 0:d93c23711ca8 345
wim 0:d93c23711ca8 346 icn = icon & 0xFFFFFF;
wim 0:d93c23711ca8 347 addr = (icon >> 24) & 0xFF;
wim 0:d93c23711ca8 348 addr = (addr - 1) * PT6315_BYTES_PER_GRID; // 3 Bytes for every Grid
wim 0:d93c23711ca8 349
wim 0:d93c23711ca8 350 //Save char...and set bits for icon to write
wim 0:d93c23711ca8 351 _displaybuffer[addr ] = _displaybuffer[addr ] | LO(icn);
wim 0:d93c23711ca8 352 _displaybuffer[addr + 1] = _displaybuffer[addr + 1] | MD(icn);
wim 0:d93c23711ca8 353 _displaybuffer[addr + 2] = _displaybuffer[addr + 2] | HI(icn);
wim 0:d93c23711ca8 354 writeData(_displaybuffer, (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID));
wim 0:d93c23711ca8 355 }
wim 0:d93c23711ca8 356
wim 0:d93c23711ca8 357 /** Clr Icon
wim 0:d93c23711ca8 358 *
wim 0:d93c23711ca8 359 * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 24 LSBs
wim 0:d93c23711ca8 360 * @return none
wim 0:d93c23711ca8 361 */
wim 0:d93c23711ca8 362 void PT6315_DVDR3510::clrIcon(Icon icon) {
wim 0:d93c23711ca8 363 int addr, icn;
wim 0:d93c23711ca8 364
wim 0:d93c23711ca8 365 icn = icon & 0xFFFFFF;
wim 0:d93c23711ca8 366 addr = (icon >> 24) & 0xFF;
wim 0:d93c23711ca8 367 addr = (addr - 1) * PT6315_BYTES_PER_GRID; // 3 Bytes for every Grid
wim 0:d93c23711ca8 368
wim 0:d93c23711ca8 369 //Save char...and clr bits for icon to write
wim 0:d93c23711ca8 370 _displaybuffer[addr ] = _displaybuffer[addr ] & ~LO(icn);
wim 0:d93c23711ca8 371 _displaybuffer[addr + 1] = _displaybuffer[addr + 1] & ~MD(icn);
wim 0:d93c23711ca8 372 _displaybuffer[addr + 2] = _displaybuffer[addr + 2] & ~HI(icn);
wim 0:d93c23711ca8 373 writeData(_displaybuffer, (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID));
wim 0:d93c23711ca8 374 }
wim 0:d93c23711ca8 375
wim 0:d93c23711ca8 376
wim 0:d93c23711ca8 377 /** Set User Defined Characters (UDC)
wim 0:d93c23711ca8 378 *
wim 0:d93c23711ca8 379 * @param unsigned char udc_idx The Index of the UDC (0..7)
wim 0:d93c23711ca8 380 * @param int udc_data The bitpattern for the UDC (16 bits)
wim 0:d93c23711ca8 381 */
wim 0:d93c23711ca8 382 void PT6315_DVDR3510::setUDC(unsigned char udc_idx, int udc_data) {
wim 0:d93c23711ca8 383
wim 0:d93c23711ca8 384 //Sanity check
wim 0:d93c23711ca8 385 if (udc_idx > (DVDR3510_NR_UDC-1)) {
wim 0:d93c23711ca8 386 return;
wim 0:d93c23711ca8 387 }
wim 0:d93c23711ca8 388
wim 0:d93c23711ca8 389 // Mask out Icon bits?
wim 0:d93c23711ca8 390 _UDC_16S[udc_idx] = udc_data & 0xFFFF;
wim 0:d93c23711ca8 391 }
wim 0:d93c23711ca8 392
wim 0:d93c23711ca8 393 /** Write a single character (Stream implementation)
wim 0:d93c23711ca8 394 */
wim 0:d93c23711ca8 395 int PT6315_DVDR3510::_putc(int value) {
wim 0:d93c23711ca8 396 bool validChar = false;
wim 0:d93c23711ca8 397 short pattern = 0x0000;
wim 0:d93c23711ca8 398 int addr;
wim 0:d93c23711ca8 399
wim 0:d93c23711ca8 400 if ((value == '\n') || (value == '\r')) {
wim 0:d93c23711ca8 401 //No character to write
wim 0:d93c23711ca8 402 validChar = false;
wim 0:d93c23711ca8 403
wim 0:d93c23711ca8 404 //Update Cursor
wim 0:d93c23711ca8 405 _column = 0;
wim 0:d93c23711ca8 406 }
wim 0:d93c23711ca8 407 else if ((value >= 0) && (value < DVDR3510_NR_UDC)) {
wim 0:d93c23711ca8 408 //Character to write
wim 0:d93c23711ca8 409 validChar = true;
wim 0:d93c23711ca8 410 pattern = _UDC_16S[value];
wim 0:d93c23711ca8 411 }
wim 0:d93c23711ca8 412 #if (SHOW_ASCII == 1)
wim 0:d93c23711ca8 413 //display all ASCII characters
wim 0:d93c23711ca8 414 else if ((value >= FONT_16S_START) && (value <= FONT_16S_END)) {
wim 0:d93c23711ca8 415 //Character to write
wim 0:d93c23711ca8 416 validChar = true;
wim 0:d93c23711ca8 417 pattern = FONT_16S[value - FONT_16S_START];
wim 0:d93c23711ca8 418 } // else
wim 0:d93c23711ca8 419 #else
wim 0:d93c23711ca8 420 //display only digits and hex characters
wim 0:d93c23711ca8 421 else if (value == '-') {
wim 0:d93c23711ca8 422 //Character to write
wim 0:d93c23711ca8 423 validChar = true;
wim 0:d93c23711ca8 424 pattern = C16_MIN;
wim 0:d93c23711ca8 425 }
wim 0:d93c23711ca8 426 else if ((value >= (int)'0') && (value <= (int) '9')) {
wim 0:d93c23711ca8 427 //Character to write
wim 0:d93c23711ca8 428 validChar = true;
wim 0:d93c23711ca8 429 pattern = FONT_16S[value - (int) '0'];
wim 0:d93c23711ca8 430 }
wim 0:d93c23711ca8 431 else if ((value >= (int) 'A') && (value <= (int) 'F')) {
wim 0:d93c23711ca8 432 //Character to write
wim 0:d93c23711ca8 433 validChar = true;
wim 0:d93c23711ca8 434 pattern = FONT_16S[10 + value - (int) 'A'];
wim 0:d93c23711ca8 435 }
wim 0:d93c23711ca8 436 else if ((value >= (int) 'a') && (value <= (int) 'f')) {
wim 0:d93c23711ca8 437 //Character to write
wim 0:d93c23711ca8 438 validChar = true;
wim 0:d93c23711ca8 439 pattern = FONT_16S[10 + value - (int) 'a'];
wim 0:d93c23711ca8 440 } //else
wim 0:d93c23711ca8 441 #endif
wim 0:d93c23711ca8 442 if (validChar) {
wim 0:d93c23711ca8 443 //Character to write
wim 0:d93c23711ca8 444
wim 0:d93c23711ca8 445 //Translate between _column and displaybuffer entries
wim 0:d93c23711ca8 446 //Note that the DVDR3510 has eight 14 Segment digits/grids.
wim 0:d93c23711ca8 447 //Some of these Grids also have icons that need to be preserved
wim 0:d93c23711ca8 448 //_column == 0 => Grid1 => addr = 0
wim 0:d93c23711ca8 449 //_column == 1 => Grid2 => addr = 3
wim 0:d93c23711ca8 450 // ....
wim 0:d93c23711ca8 451 //_column == 7 => Grid8 => addr = 21
wim 0:d93c23711ca8 452 addr = (_column * PT6315_BYTES_PER_GRID); // 3 Bytes for every Grid;
wim 0:d93c23711ca8 453
wim 0:d93c23711ca8 454 //Save icons...and set bits for character to write
wim 0:d93c23711ca8 455 _displaybuffer[addr] = (_displaybuffer[addr] & MASK_ICON_GRID[_column][0]) | LO(pattern);
wim 0:d93c23711ca8 456 _displaybuffer[addr+1] = (_displaybuffer[addr+1] & MASK_ICON_GRID[_column][1]) | MD(pattern);
wim 0:d93c23711ca8 457 _displaybuffer[addr+2] = (_displaybuffer[addr+2] & MASK_ICON_GRID[_column][2]) | HI(pattern);
wim 0:d93c23711ca8 458
wim 0:d93c23711ca8 459 writeData(_displaybuffer, (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID));
wim 0:d93c23711ca8 460
wim 0:d93c23711ca8 461 //Update Cursor
wim 0:d93c23711ca8 462 _column++;
wim 0:d93c23711ca8 463 if (_column > (DVDR3510_NR_DIGITS - 1)) {
wim 0:d93c23711ca8 464 _column = 0;
wim 0:d93c23711ca8 465 }
wim 0:d93c23711ca8 466
wim 0:d93c23711ca8 467 } // if validChar
wim 0:d93c23711ca8 468
wim 0:d93c23711ca8 469 return value;
wim 0:d93c23711ca8 470 }
wim 0:d93c23711ca8 471
wim 0:d93c23711ca8 472 // get a single character (Stream implementation)
wim 0:d93c23711ca8 473 int PT6315_DVDR3510::_getc() {
wim 0:d93c23711ca8 474 return -1;
wim 0:d93c23711ca8 475 }
wim 0:d93c23711ca8 476 #endif