Library for the Princeton PT6312 Vacuum Fluorescent Display (VFD) driver.
This library is documented here.
PT6312.cpp@3:156c23d9652a, 2015-09-10 (annotated)
- Committer:
- wim
- Date:
- Thu Sep 10 18:40:51 2015 +0000
- Revision:
- 3:156c23d9652a
- Parent:
- 2:f010b7022803
- Child:
- 5:be9ec73af639
First Release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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wim | 0:e59142cded2b | 1 | /* mbed PT6312 Library, for Princeton PT6312 VFD controller |
wim | 0:e59142cded2b | 2 | * Copyright (c) 2015, v01: WH, Initial version |
wim | 0:e59142cded2b | 3 | * |
wim | 0:e59142cded2b | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
wim | 0:e59142cded2b | 5 | * of this software and associated documentation files (the "Software"), to deal |
wim | 0:e59142cded2b | 6 | * in the Software without restriction, including without limitation the rights |
wim | 0:e59142cded2b | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
wim | 0:e59142cded2b | 8 | * copies of the Software, and to permit persons to whom the Software is |
wim | 0:e59142cded2b | 9 | * furnished to do so, subject to the following conditions: |
wim | 0:e59142cded2b | 10 | * |
wim | 0:e59142cded2b | 11 | * The above copyright notice and this permission notice shall be included in |
wim | 0:e59142cded2b | 12 | * all copies or substantial portions of the Software. |
wim | 0:e59142cded2b | 13 | * |
wim | 0:e59142cded2b | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
wim | 0:e59142cded2b | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
wim | 0:e59142cded2b | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
wim | 0:e59142cded2b | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
wim | 0:e59142cded2b | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
wim | 0:e59142cded2b | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
wim | 0:e59142cded2b | 20 | * THE SOFTWARE. |
wim | 0:e59142cded2b | 21 | */ |
wim | 0:e59142cded2b | 22 | #include "mbed.h" |
wim | 0:e59142cded2b | 23 | #include "PT6312.h" |
wim | 1:c5e247159aa6 | 24 | #include "Font_16Seg.h" |
wim | 0:e59142cded2b | 25 | |
wim | 0:e59142cded2b | 26 | /** Constructor for class for driving Princeton PT6312 VFD controller |
wim | 0:e59142cded2b | 27 | * |
wim | 0:e59142cded2b | 28 | * @brief Supports 4 Digits of 16 Segments upto 10 Digits of 12 Segments. Also supports a scanned keyboard of upto 24 keys, 4 switches and 4 LEDs. |
wim | 0:e59142cded2b | 29 | * SPI bus interface device. |
wim | 0:e59142cded2b | 30 | * |
wim | 0:e59142cded2b | 31 | * @param PinName mosi, miso, sclk, cs SPI bus pins |
wim | 0:e59142cded2b | 32 | * @param Mode selects either number of Digits and Segments |
wim | 0:e59142cded2b | 33 | */ |
wim | 0:e59142cded2b | 34 | PT6312::PT6312(PinName mosi, PinName miso, PinName sclk, PinName cs, Mode mode) : _spi(mosi,miso,sclk), _cs(cs), _mode(mode) { |
wim | 0:e59142cded2b | 35 | |
wim | 0:e59142cded2b | 36 | _init(); |
wim | 0:e59142cded2b | 37 | } |
wim | 0:e59142cded2b | 38 | |
wim | 0:e59142cded2b | 39 | /** Init the SPI interface and the controller |
wim | 0:e59142cded2b | 40 | * @param none |
wim | 0:e59142cded2b | 41 | * @return none |
wim | 0:e59142cded2b | 42 | */ |
wim | 0:e59142cded2b | 43 | void PT6312::_init(){ |
wim | 0:e59142cded2b | 44 | |
wim | 0:e59142cded2b | 45 | //init SPI |
wim | 0:e59142cded2b | 46 | _cs=1; |
wim | 0:e59142cded2b | 47 | _spi.format(8,3); //PT6312 uses mode 3 (Clock High on Idle, Data latched on second (=rising) edge) |
wim | 1:c5e247159aa6 | 48 | // _spi.frequency(100000); |
wim | 1:c5e247159aa6 | 49 | _spi.frequency(500000); |
wim | 0:e59142cded2b | 50 | |
wim | 0:e59142cded2b | 51 | //init controller |
wim | 0:e59142cded2b | 52 | _writeCmd(PT6312_MODE_SET_CMD, _mode); // Mode set command |
wim | 0:e59142cded2b | 53 | |
wim | 0:e59142cded2b | 54 | _display = PT6312_DSP_ON; |
wim | 0:e59142cded2b | 55 | _bright = PT6312_BRT_DEF; |
wim | 0:e59142cded2b | 56 | _writeCmd(PT6312_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness |
wim | 0:e59142cded2b | 57 | |
wim | 0:e59142cded2b | 58 | _writeCmd(PT6312_DATA_SET_CMD, PT6312_DATA_WR | PT6312_ADDR_INC | PT6312_MODE_NORM); // Data set cmd, normal mode, auto incr, write data |
wim | 0:e59142cded2b | 59 | } |
wim | 0:e59142cded2b | 60 | |
wim | 0:e59142cded2b | 61 | |
wim | 0:e59142cded2b | 62 | /** Clear the screen and locate to 0 |
wim | 0:e59142cded2b | 63 | */ |
wim | 0:e59142cded2b | 64 | void PT6312::cls() { |
wim | 0:e59142cded2b | 65 | |
wim | 0:e59142cded2b | 66 | _cs=0; |
wim | 0:e59142cded2b | 67 | wait_us(1); |
wim | 0:e59142cded2b | 68 | _spi.write(_flip(PT6312_ADDR_SET_CMD | 0x00)); // Address set cmd, 0 |
wim | 0:e59142cded2b | 69 | |
wim | 0:e59142cded2b | 70 | for (int cnt=0; cnt<PT6312_DISPLAY_MEM; cnt++) { |
wim | 0:e59142cded2b | 71 | _spi.write(0x00); // data |
wim | 0:e59142cded2b | 72 | } |
wim | 0:e59142cded2b | 73 | |
wim | 0:e59142cded2b | 74 | wait_us(1); |
wim | 0:e59142cded2b | 75 | _cs=1; |
wim | 0:e59142cded2b | 76 | |
wim | 0:e59142cded2b | 77 | } |
wim | 0:e59142cded2b | 78 | |
wim | 0:e59142cded2b | 79 | /** Set Brightness |
wim | 0:e59142cded2b | 80 | * |
wim | 0:e59142cded2b | 81 | * @param char brightness (3 significant bits, valid range 0..7 (1/16 .. 14/14 dutycycle) |
wim | 0:e59142cded2b | 82 | * @return none |
wim | 0:e59142cded2b | 83 | */ |
wim | 0:e59142cded2b | 84 | void PT6312::setBrightness(char brightness){ |
wim | 0:e59142cded2b | 85 | |
wim | 0:e59142cded2b | 86 | _bright = brightness & PT6312_BRT_MSK; // mask invalid bits |
wim | 0:e59142cded2b | 87 | |
wim | 0:e59142cded2b | 88 | _writeCmd(PT6312_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness |
wim | 0:e59142cded2b | 89 | |
wim | 0:e59142cded2b | 90 | } |
wim | 0:e59142cded2b | 91 | |
wim | 0:e59142cded2b | 92 | /** Set the Display mode On/off |
wim | 0:e59142cded2b | 93 | * |
wim | 0:e59142cded2b | 94 | * @param bool display mode |
wim | 0:e59142cded2b | 95 | */ |
wim | 0:e59142cded2b | 96 | void PT6312::setDisplay(bool on) { |
wim | 0:e59142cded2b | 97 | |
wim | 0:e59142cded2b | 98 | if (on) { |
wim | 0:e59142cded2b | 99 | _display = PT6312_DSP_ON; |
wim | 0:e59142cded2b | 100 | } |
wim | 0:e59142cded2b | 101 | else { |
wim | 0:e59142cded2b | 102 | _display = PT6312_DSP_OFF; |
wim | 0:e59142cded2b | 103 | } |
wim | 0:e59142cded2b | 104 | |
wim | 0:e59142cded2b | 105 | _writeCmd(PT6312_DSP_CTRL_CMD, _display | _bright ); // Display control cmd, display on/off, brightness |
wim | 0:e59142cded2b | 106 | } |
wim | 0:e59142cded2b | 107 | |
wim | 0:e59142cded2b | 108 | /** Write databyte to PT6312 |
wim | 0:e59142cded2b | 109 | * @param int address display memory location to write byte |
wim | 0:e59142cded2b | 110 | * @param char data byte written at given address |
wim | 0:e59142cded2b | 111 | * @return none |
wim | 0:e59142cded2b | 112 | */ |
wim | 0:e59142cded2b | 113 | void PT6312::writeData(int address, char data) { |
wim | 0:e59142cded2b | 114 | _cs=0; |
wim | 0:e59142cded2b | 115 | wait_us(1); |
wim | 0:e59142cded2b | 116 | _spi.write(_flip(PT6312_ADDR_SET_CMD | (address & PT6312_ADDR_MSK))); // Set Address cmd |
wim | 0:e59142cded2b | 117 | |
wim | 0:e59142cded2b | 118 | _spi.write(_flip(data)); // data |
wim | 0:e59142cded2b | 119 | |
wim | 0:e59142cded2b | 120 | wait_us(1); |
wim | 0:e59142cded2b | 121 | _cs=1; |
wim | 0:e59142cded2b | 122 | |
wim | 0:e59142cded2b | 123 | } |
wim | 0:e59142cded2b | 124 | |
wim | 0:e59142cded2b | 125 | /** Write Display datablock to PT6312 |
wim | 3:156c23d9652a | 126 | * @param DisplayData_t data Array of PT6312_DISPLAY_MEM (=22) bytes for displaydata (starting at address 0) |
wim | 3:156c23d9652a | 127 | * @param length number bytes to write (valid range 0..PT6312_DISPLAY_MEM (=22), starting at address 0) |
wim | 0:e59142cded2b | 128 | * @return none |
wim | 0:e59142cded2b | 129 | */ |
wim | 2:f010b7022803 | 130 | void PT6312::writeData(DisplayData_t data, int length) { |
wim | 0:e59142cded2b | 131 | _cs=0; |
wim | 0:e59142cded2b | 132 | wait_us(1); |
wim | 0:e59142cded2b | 133 | _spi.write(_flip(PT6312_ADDR_SET_CMD | 0x00)); // Set Address at 0 |
wim | 0:e59142cded2b | 134 | |
wim | 2:f010b7022803 | 135 | // sanity check |
wim | 2:f010b7022803 | 136 | if (length < 0) {length = 0;} |
wim | 2:f010b7022803 | 137 | if (length > PT6312_DISPLAY_MEM) {length = PT6312_DISPLAY_MEM;} |
wim | 2:f010b7022803 | 138 | |
wim | 2:f010b7022803 | 139 | // for (int idx=0; idx<PT6312_DISPLAY_MEM; idx++) { |
wim | 2:f010b7022803 | 140 | for (int idx=0; idx<length; idx++) { |
wim | 0:e59142cded2b | 141 | _spi.write(_flip(data[idx])); // data |
wim | 0:e59142cded2b | 142 | } |
wim | 0:e59142cded2b | 143 | |
wim | 0:e59142cded2b | 144 | wait_us(1); |
wim | 0:e59142cded2b | 145 | _cs=1; |
wim | 0:e59142cded2b | 146 | |
wim | 0:e59142cded2b | 147 | } |
wim | 0:e59142cded2b | 148 | |
wim | 0:e59142cded2b | 149 | /** Read keydata block from PT6312 |
wim | 0:e59142cded2b | 150 | * @param *keydata Ptr to Array of PT6312_KEY_MEM (=3) bytes for keydata |
wim | 0:e59142cded2b | 151 | * @return bool keypress True when at least one key was pressed |
wim | 0:e59142cded2b | 152 | * |
wim | 0:e59142cded2b | 153 | * Note: Due to the hardware configuration the PT6312 key matrix scanner will detect multiple keys pressed at same time, |
wim | 0:e59142cded2b | 154 | * but this may also result in some spurious keys being set in keypress data array. |
wim | 0:e59142cded2b | 155 | * It may be best to ignore all keys in those situations. That option is implemented in this method depending on #define setting. |
wim | 0:e59142cded2b | 156 | */ |
wim | 1:c5e247159aa6 | 157 | bool PT6312::getKeys(KeyData_t *keydata) { |
wim | 0:e59142cded2b | 158 | int keypress = 0; |
wim | 0:e59142cded2b | 159 | char data; |
wim | 0:e59142cded2b | 160 | |
wim | 0:e59142cded2b | 161 | // Read keys |
wim | 0:e59142cded2b | 162 | _cs=0; |
wim | 0:e59142cded2b | 163 | wait_us(1); |
wim | 0:e59142cded2b | 164 | |
wim | 0:e59142cded2b | 165 | // Enable Key Read mode |
wim | 0:e59142cded2b | 166 | _spi.write(_flip(PT6312_DATA_SET_CMD | PT6312_KEY_RD | PT6312_ADDR_INC | PT6312_MODE_NORM)); // Data set cmd, normal mode, auto incr, read data |
wim | 0:e59142cded2b | 167 | |
wim | 0:e59142cded2b | 168 | for (int idx=0; idx < PT6312_KEY_MEM; idx++) { |
wim | 0:e59142cded2b | 169 | data = _flip(_spi.write(0xFF)); // read keys and correct bitorder |
wim | 0:e59142cded2b | 170 | |
wim | 0:e59142cded2b | 171 | if (data != 0) { // Check for any pressed key |
wim | 0:e59142cded2b | 172 | for (int bit=0; bit < PT6312_KEY_BITS; bit++) { |
wim | 0:e59142cded2b | 173 | if (data & (1 << bit)) {keypress++;} // Test all significant bits |
wim | 0:e59142cded2b | 174 | } |
wim | 0:e59142cded2b | 175 | } |
wim | 0:e59142cded2b | 176 | |
wim | 0:e59142cded2b | 177 | (*keydata)[idx] = data; // Store keydata after correcting bitorder |
wim | 0:e59142cded2b | 178 | } |
wim | 0:e59142cded2b | 179 | |
wim | 0:e59142cded2b | 180 | wait_us(1); |
wim | 0:e59142cded2b | 181 | _cs=1; |
wim | 0:e59142cded2b | 182 | |
wim | 0:e59142cded2b | 183 | // Restore Data Write mode |
wim | 0:e59142cded2b | 184 | _writeCmd(PT6312_DATA_SET_CMD, PT6312_DATA_WR | PT6312_ADDR_INC | PT6312_MODE_NORM); // Data set cmd, normal mode, auto incr, write data |
wim | 0:e59142cded2b | 185 | |
wim | 0:e59142cded2b | 186 | #if(1) |
wim | 0:e59142cded2b | 187 | // Dismiss multiple keypresses at same time |
wim | 0:e59142cded2b | 188 | return (keypress == 1); |
wim | 0:e59142cded2b | 189 | #else |
wim | 0:e59142cded2b | 190 | // Allow multiple keypress and accept possible spurious keys |
wim | 0:e59142cded2b | 191 | return (keypress > 0); |
wim | 0:e59142cded2b | 192 | #endif |
wim | 0:e59142cded2b | 193 | } |
wim | 0:e59142cded2b | 194 | |
wim | 0:e59142cded2b | 195 | |
wim | 0:e59142cded2b | 196 | /** Read switches from PT6312 |
wim | 0:e59142cded2b | 197 | * |
wim | 0:e59142cded2b | 198 | * @param none |
wim | 0:e59142cded2b | 199 | * @return char for switch data (4 least significant bits) |
wim | 0:e59142cded2b | 200 | * |
wim | 0:e59142cded2b | 201 | */ |
wim | 1:c5e247159aa6 | 202 | char PT6312::getSwitches() { |
wim | 0:e59142cded2b | 203 | char data; |
wim | 0:e59142cded2b | 204 | |
wim | 0:e59142cded2b | 205 | // Read switches |
wim | 0:e59142cded2b | 206 | _cs=0; |
wim | 0:e59142cded2b | 207 | wait_us(1); |
wim | 0:e59142cded2b | 208 | |
wim | 0:e59142cded2b | 209 | // Enable Switch Read mode |
wim | 0:e59142cded2b | 210 | _spi.write(_flip(PT6312_DATA_SET_CMD | PT6312_SW_RD | PT6312_ADDR_INC | PT6312_MODE_NORM)); // Data set cmd, normal mode, auto incr, read data |
wim | 0:e59142cded2b | 211 | |
wim | 0:e59142cded2b | 212 | data = _flip(_spi.write(0xFF)) & PT6312_SW_MSK; // read switches and correct bitorder |
wim | 0:e59142cded2b | 213 | |
wim | 0:e59142cded2b | 214 | wait_us(1); |
wim | 0:e59142cded2b | 215 | _cs=1; |
wim | 0:e59142cded2b | 216 | |
wim | 0:e59142cded2b | 217 | // Restore Data Write mode |
wim | 0:e59142cded2b | 218 | _writeCmd(PT6312_DATA_SET_CMD, PT6312_DATA_WR | PT6312_ADDR_INC | PT6312_MODE_NORM); // Data set cmd, normal mode, auto incr, write data |
wim | 0:e59142cded2b | 219 | |
wim | 0:e59142cded2b | 220 | return data; |
wim | 0:e59142cded2b | 221 | } |
wim | 0:e59142cded2b | 222 | |
wim | 0:e59142cded2b | 223 | |
wim | 0:e59142cded2b | 224 | /** Set LEDs |
wim | 0:e59142cded2b | 225 | * |
wim | 0:e59142cded2b | 226 | * @param char leds (4 least significant bits) |
wim | 0:e59142cded2b | 227 | * @return none |
wim | 0:e59142cded2b | 228 | */ |
wim | 0:e59142cded2b | 229 | void PT6312::setLED (char leds) { |
wim | 0:e59142cded2b | 230 | |
wim | 0:e59142cded2b | 231 | // Set LEDs |
wim | 0:e59142cded2b | 232 | _cs=0; |
wim | 0:e59142cded2b | 233 | wait_us(1); |
wim | 0:e59142cded2b | 234 | |
wim | 0:e59142cded2b | 235 | // Enable LED Write mode |
wim | 0:e59142cded2b | 236 | _spi.write(_flip(PT6312_DATA_SET_CMD | PT6312_LED_WR | PT6312_ADDR_INC | PT6312_MODE_NORM)); // Data set cmd, normal mode, auto incr, write data |
wim | 0:e59142cded2b | 237 | |
wim | 0:e59142cded2b | 238 | _spi.write(_flip(leds & PT6312_LED_MSK)); // write LEDs in correct bitorder |
wim | 0:e59142cded2b | 239 | |
wim | 0:e59142cded2b | 240 | wait_us(1); |
wim | 0:e59142cded2b | 241 | _cs=1; |
wim | 0:e59142cded2b | 242 | |
wim | 0:e59142cded2b | 243 | // Restore Data Write mode |
wim | 0:e59142cded2b | 244 | _writeCmd(PT6312_DATA_SET_CMD, PT6312_DATA_WR | PT6312_ADDR_INC | PT6312_MODE_NORM); // Data set cmd, normal mode, auto incr, write data |
wim | 0:e59142cded2b | 245 | } |
wim | 0:e59142cded2b | 246 | |
wim | 0:e59142cded2b | 247 | |
wim | 0:e59142cded2b | 248 | |
wim | 0:e59142cded2b | 249 | /** Helper to reverse all command or databits. The PT6312 expects LSB first, whereas SPI is MSB first |
wim | 0:e59142cded2b | 250 | * @param char data |
wim | 0:e59142cded2b | 251 | * @return bitreversed data |
wim | 0:e59142cded2b | 252 | */ |
wim | 0:e59142cded2b | 253 | char PT6312::_flip(char data) { |
wim | 0:e59142cded2b | 254 | char value=0; |
wim | 0:e59142cded2b | 255 | |
wim | 0:e59142cded2b | 256 | if (data & 0x01) {value |= 0x80;} ; |
wim | 0:e59142cded2b | 257 | if (data & 0x02) {value |= 0x40;} ; |
wim | 0:e59142cded2b | 258 | if (data & 0x04) {value |= 0x20;} ; |
wim | 0:e59142cded2b | 259 | if (data & 0x08) {value |= 0x10;} ; |
wim | 0:e59142cded2b | 260 | if (data & 0x10) {value |= 0x08;} ; |
wim | 0:e59142cded2b | 261 | if (data & 0x20) {value |= 0x04;} ; |
wim | 0:e59142cded2b | 262 | if (data & 0x40) {value |= 0x02;} ; |
wim | 0:e59142cded2b | 263 | if (data & 0x80) {value |= 0x01;} ; |
wim | 0:e59142cded2b | 264 | return value; |
wim | 0:e59142cded2b | 265 | } |
wim | 0:e59142cded2b | 266 | |
wim | 0:e59142cded2b | 267 | |
wim | 0:e59142cded2b | 268 | /** Write command and parameter to PT6312 |
wim | 0:e59142cded2b | 269 | * @param int cmd Command byte |
wim | 0:e59142cded2b | 270 | * &Param int data Parameters for command |
wim | 0:e59142cded2b | 271 | * @return none |
wim | 0:e59142cded2b | 272 | */ |
wim | 0:e59142cded2b | 273 | void PT6312::_writeCmd(int cmd, int data){ |
wim | 0:e59142cded2b | 274 | |
wim | 0:e59142cded2b | 275 | _cs=0; |
wim | 0:e59142cded2b | 276 | wait_us(1); |
wim | 3:156c23d9652a | 277 | |
wim | 0:e59142cded2b | 278 | _spi.write(_flip( (cmd & PT6312_CMD_MSK) | (data & ~PT6312_CMD_MSK))); |
wim | 0:e59142cded2b | 279 | |
wim | 0:e59142cded2b | 280 | wait_us(1); |
wim | 0:e59142cded2b | 281 | _cs=1; |
wim | 0:e59142cded2b | 282 | |
wim | 0:e59142cded2b | 283 | }; |
wim | 0:e59142cded2b | 284 | |
wim | 0:e59142cded2b | 285 | |
wim | 1:c5e247159aa6 | 286 | |
wim | 2:f010b7022803 | 287 | /** Constructor for class for driving Princeton PT6312 VFD controller as used in Philips DVP630 |
wim | 1:c5e247159aa6 | 288 | * |
wim | 3:156c23d9652a | 289 | * @brief Supports 7 Digits of 15 Segments. Also supports a scanned keyboard of 3 keys, 3 switches and 1 LED. |
wim | 3:156c23d9652a | 290 | * |
wim | 1:c5e247159aa6 | 291 | * @param PinName mosi, miso, sclk, cs SPI bus pins |
wim | 1:c5e247159aa6 | 292 | */ |
wim | 2:f010b7022803 | 293 | PT6312_DVP630::PT6312_DVP630(PinName mosi, PinName miso, PinName sclk, PinName cs) : PT6312(mosi, miso, sclk, cs, Dig7_Seg15) { |
wim | 2:f010b7022803 | 294 | _column = 0; |
wim | 2:f010b7022803 | 295 | _columns = DVP630_NR_DIGITS; |
wim | 1:c5e247159aa6 | 296 | } |
wim | 1:c5e247159aa6 | 297 | |
wim | 1:c5e247159aa6 | 298 | #if(0) |
wim | 1:c5e247159aa6 | 299 | #if DOXYGEN_ONLY |
wim | 1:c5e247159aa6 | 300 | /** Write a character to the LCD |
wim | 1:c5e247159aa6 | 301 | * |
wim | 1:c5e247159aa6 | 302 | * @param c The character to write to the display |
wim | 1:c5e247159aa6 | 303 | */ |
wim | 1:c5e247159aa6 | 304 | int putc(int c); |
wim | 1:c5e247159aa6 | 305 | |
wim | 1:c5e247159aa6 | 306 | /** Write a formatted string to the LCD |
wim | 1:c5e247159aa6 | 307 | * |
wim | 1:c5e247159aa6 | 308 | * @param format A printf-style format string, followed by the |
wim | 1:c5e247159aa6 | 309 | * variables to use in formatting the string. |
wim | 1:c5e247159aa6 | 310 | */ |
wim | 1:c5e247159aa6 | 311 | int printf(const char* format, ...); |
wim | 1:c5e247159aa6 | 312 | #endif |
wim | 1:c5e247159aa6 | 313 | #endif |
wim | 1:c5e247159aa6 | 314 | |
wim | 1:c5e247159aa6 | 315 | /** Locate cursor to a screen column |
wim | 1:c5e247159aa6 | 316 | * |
wim | 1:c5e247159aa6 | 317 | * @param column The horizontal position from the left, indexed from 0 |
wim | 1:c5e247159aa6 | 318 | */ |
wim | 2:f010b7022803 | 319 | void PT6312_DVP630::locate(int column) { |
wim | 2:f010b7022803 | 320 | //sanity check |
wim | 2:f010b7022803 | 321 | if (column < 0) {column = 0;} |
wim | 2:f010b7022803 | 322 | if (column > (_columns - 1)) {column = _columns - 1;} |
wim | 2:f010b7022803 | 323 | |
wim | 2:f010b7022803 | 324 | _column = column; |
wim | 1:c5e247159aa6 | 325 | } |
wim | 1:c5e247159aa6 | 326 | |
wim | 1:c5e247159aa6 | 327 | |
wim | 1:c5e247159aa6 | 328 | /** Number of screen columns |
wim | 1:c5e247159aa6 | 329 | * |
wim | 1:c5e247159aa6 | 330 | * @param none |
wim | 1:c5e247159aa6 | 331 | * @return columns |
wim | 1:c5e247159aa6 | 332 | */ |
wim | 2:f010b7022803 | 333 | int PT6312_DVP630::columns() { |
wim | 1:c5e247159aa6 | 334 | return _columns; |
wim | 1:c5e247159aa6 | 335 | } |
wim | 1:c5e247159aa6 | 336 | |
wim | 1:c5e247159aa6 | 337 | |
wim | 1:c5e247159aa6 | 338 | /** Clear the screen and locate to 0 |
wim | 1:c5e247159aa6 | 339 | */ |
wim | 2:f010b7022803 | 340 | void PT6312_DVP630::cls() { |
wim | 2:f010b7022803 | 341 | |
wim | 3:156c23d9652a | 342 | #if(0) |
wim | 3:156c23d9652a | 343 | //clear local buffer (including Icons) |
wim | 2:f010b7022803 | 344 | for (int idx=0; idx < (DVP630_NR_DIGITS*2); idx++) { |
wim | 2:f010b7022803 | 345 | _displaybuffer[idx] = 0x00; |
wim | 2:f010b7022803 | 346 | } |
wim | 3:156c23d9652a | 347 | #else |
wim | 3:156c23d9652a | 348 | //clear local buffer (preserving Icons) |
wim | 3:156c23d9652a | 349 | for (int idx=0; idx < DVP630_NR_DIGITS; idx++) { |
wim | 3:156c23d9652a | 350 | _displaybuffer[(idx<<1)] = _displaybuffer[(idx<<1)] & LO(S_ICON_MSK); |
wim | 3:156c23d9652a | 351 | _displaybuffer[(idx<<1) + 1] = _displaybuffer[(idx<<1) + 1] & HI(S_ICON_MSK); |
wim | 3:156c23d9652a | 352 | } |
wim | 3:156c23d9652a | 353 | #endif |
wim | 3:156c23d9652a | 354 | |
wim | 3:156c23d9652a | 355 | writeData(_displaybuffer, (DVP630_NR_DIGITS*2)); |
wim | 3:156c23d9652a | 356 | |
wim | 2:f010b7022803 | 357 | _column = 0; |
wim | 1:c5e247159aa6 | 358 | } |
wim | 1:c5e247159aa6 | 359 | |
wim | 3:156c23d9652a | 360 | /** Set Icon |
wim | 3:156c23d9652a | 361 | * |
wim | 3:156c23d9652a | 362 | * @param Icon icon Enums Icon has Digit position encoded in 16 MSBs, Icon pattern encoded in 16 LSBs |
wim | 3:156c23d9652a | 363 | * @return none |
wim | 3:156c23d9652a | 364 | */ |
wim | 3:156c23d9652a | 365 | void PT6312_DVP630::setIcon(Icon icon) { |
wim | 3:156c23d9652a | 366 | int addr, icn; |
wim | 3:156c23d9652a | 367 | |
wim | 3:156c23d9652a | 368 | icn = icon & 0xFFFF; |
wim | 3:156c23d9652a | 369 | addr = (icon >> 16) & 0xFFFF; |
wim | 3:156c23d9652a | 370 | addr = ((DVP630_NR_DIGITS-1) - addr) * 2; |
wim | 3:156c23d9652a | 371 | |
wim | 3:156c23d9652a | 372 | //Save char...and set bits for icon to write |
wim | 3:156c23d9652a | 373 | _displaybuffer[addr] = _displaybuffer[addr] | LO(icn); |
wim | 3:156c23d9652a | 374 | _displaybuffer[addr+1] = _displaybuffer[addr+1] | HI(icn); |
wim | 3:156c23d9652a | 375 | writeData(_displaybuffer, (DVP630_NR_DIGITS*2)); |
wim | 3:156c23d9652a | 376 | } |
wim | 3:156c23d9652a | 377 | |
wim | 3:156c23d9652a | 378 | /** Clr Icon |
wim | 3:156c23d9652a | 379 | * |
wim | 3:156c23d9652a | 380 | * @param Icon icon Enums Icon has Digit position encoded in 16 MSBs, Icon pattern encoded in 16 LSBs |
wim | 3:156c23d9652a | 381 | * @return none |
wim | 3:156c23d9652a | 382 | */ |
wim | 3:156c23d9652a | 383 | void PT6312_DVP630::clrIcon(Icon icon) { |
wim | 3:156c23d9652a | 384 | int addr, icn; |
wim | 3:156c23d9652a | 385 | |
wim | 3:156c23d9652a | 386 | icn = icon & 0xFFFF; |
wim | 3:156c23d9652a | 387 | addr = (icon >> 16) & 0xFFFF; |
wim | 3:156c23d9652a | 388 | addr = ((DVP630_NR_DIGITS-1) - addr) * 2; |
wim | 3:156c23d9652a | 389 | |
wim | 3:156c23d9652a | 390 | //Save char...and clr bits for icon to write |
wim | 3:156c23d9652a | 391 | _displaybuffer[addr] = _displaybuffer[addr] & ~LO(icn); |
wim | 3:156c23d9652a | 392 | _displaybuffer[addr+1] = _displaybuffer[addr+1] & ~HI(icn); |
wim | 3:156c23d9652a | 393 | writeData(_displaybuffer, (DVP630_NR_DIGITS*2)); |
wim | 3:156c23d9652a | 394 | } |
wim | 3:156c23d9652a | 395 | |
wim | 3:156c23d9652a | 396 | |
wim | 3:156c23d9652a | 397 | /** Set User Defined Characters (UDC) |
wim | 3:156c23d9652a | 398 | * |
wim | 3:156c23d9652a | 399 | * @param unsigned char udc_idx The Index of the UDC (0..7) |
wim | 3:156c23d9652a | 400 | * @param int udc_data The bitpattern for the UDC (16 bits) |
wim | 3:156c23d9652a | 401 | */ |
wim | 3:156c23d9652a | 402 | void PT6312_DVP630::setUDC(unsigned char udc_idx, int udc_data) { |
wim | 3:156c23d9652a | 403 | |
wim | 3:156c23d9652a | 404 | //Sanity check |
wim | 3:156c23d9652a | 405 | if (udc_idx > (DVP630_NR_UDC-1)) { |
wim | 3:156c23d9652a | 406 | return; |
wim | 3:156c23d9652a | 407 | } |
wim | 3:156c23d9652a | 408 | // Mask out Icon bits? |
wim | 3:156c23d9652a | 409 | |
wim | 3:156c23d9652a | 410 | _UDC_16S[udc_idx][0] = LO(udc_data); |
wim | 3:156c23d9652a | 411 | _UDC_16S[udc_idx][1] = HI(udc_data); |
wim | 3:156c23d9652a | 412 | } |
wim | 1:c5e247159aa6 | 413 | |
wim | 1:c5e247159aa6 | 414 | /** Write a single character (Stream implementation) |
wim | 1:c5e247159aa6 | 415 | */ |
wim | 2:f010b7022803 | 416 | int PT6312_DVP630::_putc(int value) { |
wim | 1:c5e247159aa6 | 417 | int addr; |
wim | 1:c5e247159aa6 | 418 | |
wim | 3:156c23d9652a | 419 | if ((value == '\n') || (value == '\r')) { |
wim | 1:c5e247159aa6 | 420 | //No character to write |
wim | 1:c5e247159aa6 | 421 | |
wim | 1:c5e247159aa6 | 422 | //Update Cursor |
wim | 1:c5e247159aa6 | 423 | _column = 0; |
wim | 1:c5e247159aa6 | 424 | } |
wim | 3:156c23d9652a | 425 | else if ((value >= 0) && (value < DVP630_NR_UDC)) { |
wim | 1:c5e247159aa6 | 426 | //Character to write |
wim | 3:156c23d9652a | 427 | addr = ((DVP630_NR_DIGITS - 1) - _column) * 2; |
wim | 2:f010b7022803 | 428 | |
wim | 3:156c23d9652a | 429 | //Save icons...and set bits for character to write |
wim | 3:156c23d9652a | 430 | _displaybuffer[addr] = (_displaybuffer[addr] & LO(S_ICON_MSK)) | _UDC_16S[value][0]; |
wim | 3:156c23d9652a | 431 | _displaybuffer[addr+1] = (_displaybuffer[addr+1] & HI(S_ICON_MSK)) | _UDC_16S[value][1]; |
wim | 2:f010b7022803 | 432 | writeData(_displaybuffer, (DVP630_NR_DIGITS*2)); |
wim | 2:f010b7022803 | 433 | |
wim | 1:c5e247159aa6 | 434 | //Update Cursor |
wim | 1:c5e247159aa6 | 435 | _column++; |
wim | 3:156c23d9652a | 436 | if (_column > (DVP630_NR_DIGITS - 1)) { |
wim | 3:156c23d9652a | 437 | _column = 0; |
wim | 3:156c23d9652a | 438 | } |
wim | 3:156c23d9652a | 439 | } |
wim | 3:156c23d9652a | 440 | else if ((value >= FONT_16S_START) && (value <= FONT_16S_END)) { |
wim | 3:156c23d9652a | 441 | //Character to write |
wim | 3:156c23d9652a | 442 | value = value - FONT_16S_START; |
wim | 3:156c23d9652a | 443 | addr = ((DVP630_NR_DIGITS - 1) - _column) * 2; |
wim | 3:156c23d9652a | 444 | |
wim | 3:156c23d9652a | 445 | //Save icons...and set bits for character to write |
wim | 3:156c23d9652a | 446 | _displaybuffer[addr] = (_displaybuffer[addr] & LO(S_ICON_MSK)) | FONT_16S[value][0]; |
wim | 3:156c23d9652a | 447 | _displaybuffer[addr+1] = (_displaybuffer[addr+1] & HI(S_ICON_MSK)) | FONT_16S[value][1]; |
wim | 3:156c23d9652a | 448 | writeData(_displaybuffer, (DVP630_NR_DIGITS*2)); |
wim | 3:156c23d9652a | 449 | |
wim | 3:156c23d9652a | 450 | //Update Cursor |
wim | 3:156c23d9652a | 451 | _column++; |
wim | 3:156c23d9652a | 452 | if (_column > (DVP630_NR_DIGITS - 1)) { |
wim | 1:c5e247159aa6 | 453 | _column = 0; |
wim | 1:c5e247159aa6 | 454 | } |
wim | 1:c5e247159aa6 | 455 | } //else |
wim | 1:c5e247159aa6 | 456 | |
wim | 1:c5e247159aa6 | 457 | return value; |
wim | 1:c5e247159aa6 | 458 | } |
wim | 1:c5e247159aa6 | 459 | |
wim | 1:c5e247159aa6 | 460 | |
wim | 1:c5e247159aa6 | 461 | // get a single character (Stream implementation) |
wim | 2:f010b7022803 | 462 | int PT6312_DVP630::_getc() { |
wim | 1:c5e247159aa6 | 463 | return -1; |
wim | 1:c5e247159aa6 | 464 | } |