Wim Huiskamp / LC75711

Sanyo LC75711 VFD controller/driver for upto 16 Dot Matrix Characters

Dependents:   mbed_LC75711

The component page is here.

LC75711.cpp@1:bcf010fcacae, 2017-09-13 (annotated)

Committer:
wim
Date:
Wed Sep 13 18:25:24 2017 +0000
Revision:
1:bcf010fcacae
Parent:
0:5eb5fee234e8
Child:
2:cb6f2b7930c8
Fixed doxygen comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wim 0:5eb5fee234e8 1 /* mbed LC75710 Library, for Sanyo LC7571X VFD controller
wim 0:5eb5fee234e8 2 * Note: The LC75710, LC75711 and LC75712 differ only in the built-in character ROM
wim 0:5eb5fee234e8 3 *
wim 0:5eb5fee234e8 4 * Copyright (c) 2017, v01: WH, Initial version
wim 1:bcf010fcacae 5 * 2017, v02: WH, Cleaned up docs
wim 0:5eb5fee234e8 6 *
wim 0:5eb5fee234e8 7 * Permission is hereby granted, free of charge, to any person obtaining a copy
wim 0:5eb5fee234e8 8 * of this software and associated documentation files (the "Software"), to deal
wim 0:5eb5fee234e8 9 * in the Software without restriction, including without limitation the rights
wim 0:5eb5fee234e8 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
wim 0:5eb5fee234e8 11 * copies of the Software, and to permit persons to whom the Software is
wim 0:5eb5fee234e8 12 * furnished to do so, subject to the following conditions:
wim 0:5eb5fee234e8 13 *
wim 0:5eb5fee234e8 14 * The above copyright notice and this permission notice shall be included in
wim 0:5eb5fee234e8 15 * all copies or substantial portions of the Software.
wim 0:5eb5fee234e8 16 *
wim 0:5eb5fee234e8 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
wim 0:5eb5fee234e8 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
wim 0:5eb5fee234e8 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
wim 0:5eb5fee234e8 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
wim 0:5eb5fee234e8 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wim 0:5eb5fee234e8 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
wim 0:5eb5fee234e8 23 * THE SOFTWARE.
wim 0:5eb5fee234e8 24 */
wim 0:5eb5fee234e8 25
wim 0:5eb5fee234e8 26 #include "mbed.h"
wim 0:5eb5fee234e8 27 #include "LC75711.h"
wim 0:5eb5fee234e8 28 #include "LC75711_UDC.inc"
wim 0:5eb5fee234e8 29
wim 0:5eb5fee234e8 30
wim 0:5eb5fee234e8 31 /** Constructor for class for driving Sanyo LC75711 VFD controller
wim 0:5eb5fee234e8 32 *
wim 1:bcf010fcacae 33 * @brief Supports upto 16 Grids of 35 matrix segments. Also supports 3-8 additional segments (depending on number of grids).
wim 1:bcf010fcacae 34 * SPI bus interface device.
wim 0:5eb5fee234e8 35 * @param PinName mosi, sclk, cs SPI bus pins
wim 0:5eb5fee234e8 36 * @param Mode selects number of Grids and Segments (default 11 Grids, 35 matrix segments, 8 additional segments)
wim 0:5eb5fee234e8 37 */
wim 0:5eb5fee234e8 38 LC75711::LC75711(PinName mosi, PinName sclk, PinName cs, Mode mode) : _spi(mosi,NC,sclk), _cs(cs), _mode(mode) {
wim 0:5eb5fee234e8 39
wim 0:5eb5fee234e8 40 _init();
wim 0:5eb5fee234e8 41 }
wim 0:5eb5fee234e8 42
wim 0:5eb5fee234e8 43 /** Init the LC75711 interface and the controller
wim 1:bcf010fcacae 44 *
wim 0:5eb5fee234e8 45 * @param none
wim 0:5eb5fee234e8 46 * @return none
wim 0:5eb5fee234e8 47 */
wim 0:5eb5fee234e8 48 void LC75711::_init(){
wim 0:5eb5fee234e8 49
wim 0:5eb5fee234e8 50 //init SPI
wim 0:5eb5fee234e8 51 _cs=0;
wim 0:5eb5fee234e8 52 _spi.format(8,0); //LC75711 uses mode 0 (Clock Low on Idle, Data latched on first (=rising) edge)
wim 0:5eb5fee234e8 53 // _spi.frequency(100000);
wim 0:5eb5fee234e8 54 _spi.frequency(250000);
wim 0:5eb5fee234e8 55
wim 0:5eb5fee234e8 56 //init controller
wim 0:5eb5fee234e8 57
wim 0:5eb5fee234e8 58 // Set number of Grids
wim 0:5eb5fee234e8 59 _writeCmd((LC75711_GRID_REG | _mode), // B16..B23, Command register & value
wim 0:5eb5fee234e8 60 0x00, // B8..B15, Dummy
wim 0:5eb5fee234e8 61 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 62 LC75711_GRID_DLY); // Command Delay
wim 0:5eb5fee234e8 63
wim 0:5eb5fee234e8 64 _setAddress(0, 0); // No shift
wim 0:5eb5fee234e8 65
wim 0:5eb5fee234e8 66 setBlink(false); // No Blink
wim 0:5eb5fee234e8 67 setBrightness(LC75711_BRT_DEF); // Default Brightness
wim 0:5eb5fee234e8 68
wim 0:5eb5fee234e8 69 // Clear the DCRAM (undefined at Reset)
wim 0:5eb5fee234e8 70 cls();
wim 0:5eb5fee234e8 71
wim 0:5eb5fee234e8 72 // Clear the UDC RAM (undefined at Reset)
wim 0:5eb5fee234e8 73 const char udc_none[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00};
wim 0:5eb5fee234e8 74 for (int idx=0; idx < LC75711_NR_UDC; idx++) {
wim 0:5eb5fee234e8 75 setUDC(idx, (char *)udc_none);
wim 0:5eb5fee234e8 76 }
wim 0:5eb5fee234e8 77
wim 0:5eb5fee234e8 78 setDisplay(true); // Display On
wim 0:5eb5fee234e8 79 }
wim 0:5eb5fee234e8 80
wim 0:5eb5fee234e8 81
wim 0:5eb5fee234e8 82 /** Clear the screen and locate to 0
wim 1:bcf010fcacae 83 *
wim 1:bcf010fcacae 84 * @param none
wim 1:bcf010fcacae 85 * @return none
wim 1:bcf010fcacae 86 */
wim 0:5eb5fee234e8 87 void LC75711::cls() {
wim 0:5eb5fee234e8 88
wim 0:5eb5fee234e8 89 for (int cnt=0; cnt<LC75711_DISPLAY_MEM; cnt++) {
wim 0:5eb5fee234e8 90 writeData(char (' '), cnt); // data
wim 0:5eb5fee234e8 91 // writeData(0x00, cnt); // data
wim 0:5eb5fee234e8 92 }
wim 0:5eb5fee234e8 93
wim 0:5eb5fee234e8 94 for (int cnt=0; cnt<LC75711_ADD_MEM; cnt++) {
wim 0:5eb5fee234e8 95 writeData(0x00, cnt); // adata
wim 0:5eb5fee234e8 96 }
wim 0:5eb5fee234e8 97 }
wim 0:5eb5fee234e8 98
wim 0:5eb5fee234e8 99 /** Set the Blink mode
wim 0:5eb5fee234e8 100 *
wim 0:5eb5fee234e8 101 * @param bool Blink mode
wim 1:bcf010fcacae 102 * @param int grids selected grids for Blinking enable/disable (default = all)
wim 1:bcf010fcacae 103 * @return none
wim 0:5eb5fee234e8 104 */
wim 0:5eb5fee234e8 105 void LC75711::setBlink(bool on, int grids) {
wim 0:5eb5fee234e8 106
wim 0:5eb5fee234e8 107 // Sanity check and update of local shadow
wim 0:5eb5fee234e8 108 if (on) {
wim 0:5eb5fee234e8 109 _blink = _blink | (grids & LC75711_GR_MSK); // Set grid bits
wim 0:5eb5fee234e8 110 }
wim 0:5eb5fee234e8 111 else {
wim 0:5eb5fee234e8 112 _blink = _blink & ~(grids & LC75711_GR_MSK); // Clr grid bits
wim 0:5eb5fee234e8 113 }
wim 0:5eb5fee234e8 114
wim 0:5eb5fee234e8 115 _writeCmd((LC75711_BLNK_REG | LC75711_BLNK_ON), // B16..B23, Command register & value
wim 0:5eb5fee234e8 116 ((_blink >> 8) & 0xFF), // B8..B15, GR8..GR16
wim 0:5eb5fee234e8 117 ( _blink & 0xFF), // B0..B7, GR1..GR7
wim 0:5eb5fee234e8 118 LC75711_BLNK_DLY); // Command Delay
wim 0:5eb5fee234e8 119 }
wim 0:5eb5fee234e8 120
wim 0:5eb5fee234e8 121
wim 0:5eb5fee234e8 122 /** Set Brightness
wim 0:5eb5fee234e8 123 *
wim 0:5eb5fee234e8 124 * @param char brightness (8 significant bits, valid range 0..239 (dutycycle linked to number of grids)
wim 0:5eb5fee234e8 125 * @return none
wim 0:5eb5fee234e8 126 */
wim 0:5eb5fee234e8 127 void LC75711::setBrightness(char brightness){
wim 0:5eb5fee234e8 128
wim 0:5eb5fee234e8 129 //Sanity check
wim 0:5eb5fee234e8 130 brightness = brightness & LC75711_BRT_MSK; // mask invalid bits
wim 0:5eb5fee234e8 131 if (brightness > 239) {brightness = 239;}
wim 0:5eb5fee234e8 132
wim 0:5eb5fee234e8 133 _writeCmd((LC75711_BRT_REG), // B16..B23, Command register
wim 0:5eb5fee234e8 134 brightness, // B8..B15, Brightness
wim 0:5eb5fee234e8 135 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 136 LC75711_BRT_DLY); // Command Delay
wim 0:5eb5fee234e8 137 }
wim 0:5eb5fee234e8 138
wim 0:5eb5fee234e8 139 /** Set the Display mode On/off
wim 0:5eb5fee234e8 140 *
wim 0:5eb5fee234e8 141 * @param bool display mode
wim 1:bcf010fcacae 142 * @return none
wim 0:5eb5fee234e8 143 */
wim 0:5eb5fee234e8 144 void LC75711::setDisplay(bool on) {
wim 0:5eb5fee234e8 145 char display;
wim 0:5eb5fee234e8 146
wim 0:5eb5fee234e8 147 if (on) {
wim 0:5eb5fee234e8 148 display = LC75711_DSPL_ON;
wim 0:5eb5fee234e8 149 }
wim 0:5eb5fee234e8 150 else {
wim 0:5eb5fee234e8 151 display = LC75711_DSPL_OFF;
wim 0:5eb5fee234e8 152 }
wim 0:5eb5fee234e8 153
wim 0:5eb5fee234e8 154 _writeCmd((LC75711_DSPL_REG | display), // B16..B23, Command register & value
wim 0:5eb5fee234e8 155 0xFF, // B8..B15, GR8..GR16
wim 0:5eb5fee234e8 156 0xFF, // B0..B7, GR1..GR7
wim 0:5eb5fee234e8 157 LC75711_DSPL_DLY); // Command Delay
wim 0:5eb5fee234e8 158 }
wim 0:5eb5fee234e8 159
wim 0:5eb5fee234e8 160
wim 0:5eb5fee234e8 161 /** Set User Defined Characters (UDC)
wim 0:5eb5fee234e8 162 *
wim 0:5eb5fee234e8 163 * @param unsigned char udc_idx The Index of the UDC (0..7)
wim 1:bcf010fcacae 164 * @param UDCData_t udc_data The bitpattern for the UDC (7 bytes)
wim 1:bcf010fcacae 165 * @return none
wim 0:5eb5fee234e8 166 */
wim 0:5eb5fee234e8 167 void LC75711::setUDC(unsigned char udc_idx, UDCData_t udc_data) {
wim 0:5eb5fee234e8 168 char data;
wim 0:5eb5fee234e8 169
wim 0:5eb5fee234e8 170 //Sanity check
wim 0:5eb5fee234e8 171 udc_idx = udc_idx & LC75711_UDC_MSK; // mask invalid bits
wim 0:5eb5fee234e8 172
wim 0:5eb5fee234e8 173 _cs=0; // Prepare to send Address
wim 0:5eb5fee234e8 174 wait_us(1);
wim 0:5eb5fee234e8 175
wim 0:5eb5fee234e8 176 _spi.write(_flip(LC75711_ADDRESS)); // Address
wim 0:5eb5fee234e8 177
wim 0:5eb5fee234e8 178 _cs=1; // Latch Address, Prepare to send Command & Params
wim 0:5eb5fee234e8 179 wait_us(1);
wim 0:5eb5fee234e8 180
wim 0:5eb5fee234e8 181 data = ((udc_data[1] & 0x07) << 5) | ((udc_data[0] & 0x1F) << 0);
wim 0:5eb5fee234e8 182 _spi.write(_flip(data)); // B0..B7, AM1-AM8
wim 0:5eb5fee234e8 183
wim 0:5eb5fee234e8 184 data = ((udc_data[3] & 0x01) << 7) | ((udc_data[2] & 0x1F) << 2) | ((udc_data[1] & 0x18) >> 3);
wim 0:5eb5fee234e8 185 _spi.write(_flip(data)); // B8..B15, AM9-AM16
wim 0:5eb5fee234e8 186
wim 0:5eb5fee234e8 187 data = ((udc_data[4] & 0x0F) << 4) | ((udc_data[3] & 0x1E) >> 1);
wim 0:5eb5fee234e8 188 _spi.write(_flip(data)); // B16..B23, AM17-AM24
wim 0:5eb5fee234e8 189
wim 0:5eb5fee234e8 190 data = ((udc_data[6] & 0x03) << 6) | ((udc_data[5] & 0x1F) << 1) | ((udc_data[4] & 0x10) >> 4);
wim 0:5eb5fee234e8 191 _spi.write(_flip(data)); // B24..B31, AM25-AM32
wim 0:5eb5fee234e8 192
wim 0:5eb5fee234e8 193 data = ((udc_data[6] & 0x1C) >> 2);
wim 0:5eb5fee234e8 194 _spi.write(_flip(data)); // B32..B39, AM32-AM35
wim 0:5eb5fee234e8 195
wim 0:5eb5fee234e8 196 _spi.write(_flip(udc_idx)); // B40..B47, CA0-CA7
wim 0:5eb5fee234e8 197
wim 0:5eb5fee234e8 198 _spi.write(_flip(LC75711_UDC_REG)); // B48..B55, Command register
wim 0:5eb5fee234e8 199
wim 0:5eb5fee234e8 200 wait_us(1);
wim 0:5eb5fee234e8 201 _cs=0; // Latch Command & Params
wim 0:5eb5fee234e8 202
wim 0:5eb5fee234e8 203 wait_us(LC75711_UDC_DLY); // Command Delay
wim 0:5eb5fee234e8 204 }
wim 0:5eb5fee234e8 205
wim 0:5eb5fee234e8 206
wim 0:5eb5fee234e8 207 /** Write Data to LC75711
wim 1:bcf010fcacae 208 *
wim 1:bcf010fcacae 209 * @param char data Character code
wim 1:bcf010fcacae 210 * @param char address Parameter for data
wim 0:5eb5fee234e8 211 * @return none
wim 0:5eb5fee234e8 212 */
wim 0:5eb5fee234e8 213 void LC75711::writeData(char data, char address){
wim 0:5eb5fee234e8 214
wim 0:5eb5fee234e8 215 //Sanity check
wim 0:5eb5fee234e8 216 address = address & LC75711_DADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 217
wim 0:5eb5fee234e8 218 _writeCmd((LC75711_DATA_REG), // B16..B23, Command register
wim 0:5eb5fee234e8 219 address, // B8..B15, DCRAM address
wim 0:5eb5fee234e8 220 data, // B0..B7, Character code
wim 0:5eb5fee234e8 221 LC75711_DATA_DLY); // Command Delay
wim 0:5eb5fee234e8 222 }
wim 0:5eb5fee234e8 223
wim 0:5eb5fee234e8 224 /** Write Additional Data to LC75711
wim 1:bcf010fcacae 225 *
wim 1:bcf010fcacae 226 * @param char adata Additional code (annunciator)
wim 1:bcf010fcacae 227 * @param char address Parameter for data
wim 0:5eb5fee234e8 228 * @return none
wim 0:5eb5fee234e8 229 */
wim 0:5eb5fee234e8 230 void LC75711::writeAData(char adata, char address){
wim 0:5eb5fee234e8 231
wim 0:5eb5fee234e8 232 //Sanity check
wim 0:5eb5fee234e8 233 address = address & LC75711_AADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 234
wim 0:5eb5fee234e8 235 _writeCmd((LC75711_ADAT_REG | address), // B16..B23, Command register & ADRAM address
wim 0:5eb5fee234e8 236 adata, // B8..B15, ADATA
wim 0:5eb5fee234e8 237 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 238 LC75711_ADAT_DLY); // Command Delay
wim 0:5eb5fee234e8 239 }
wim 0:5eb5fee234e8 240
wim 0:5eb5fee234e8 241
wim 0:5eb5fee234e8 242 /** Set Address
wim 1:bcf010fcacae 243 *
wim 1:bcf010fcacae 244 * @param char RAM address for data displayed at Grid1 (0..63)
wim 1:bcf010fcacae 245 * @param char RAM address for adata displayed at Grid1 (0..15)
wim 0:5eb5fee234e8 246 * @return none
wim 0:5eb5fee234e8 247 *
wim 1:bcf010fcacae 248 * Note that a Shift (L/R) command will change the Address of data displayed at Grid1
wim 0:5eb5fee234e8 249 */
wim 0:5eb5fee234e8 250 void LC75711::_setAddress(char data_addr, char adata_addr){
wim 0:5eb5fee234e8 251
wim 0:5eb5fee234e8 252 //Sanity check
wim 0:5eb5fee234e8 253 data_addr = data_addr & LC75711_DADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 254 adata_addr = adata_addr & LC75711_AADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 255
wim 0:5eb5fee234e8 256 _writeCmd((LC75711_AC_REG | adata_addr), // B16..B23, Command register & ADRAM address
wim 0:5eb5fee234e8 257 data_addr, // B8..B15, DCRAM address
wim 0:5eb5fee234e8 258 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 259 LC75711_AC_DLY); // Command Delay
wim 0:5eb5fee234e8 260 }
wim 0:5eb5fee234e8 261
wim 0:5eb5fee234e8 262
wim 0:5eb5fee234e8 263 /** Write command and parameters to LC75711
wim 1:bcf010fcacae 264 *
wim 1:bcf010fcacae 265 * @param char cmd Command byte
wim 1:bcf010fcacae 266 * @param char data1 Parameters for command
wim 1:bcf010fcacae 267 * @param char data0 Parameters for command
wim 1:bcf010fcacae 268 * @param char delay Delay for command execution
wim 0:5eb5fee234e8 269 * @return none
wim 0:5eb5fee234e8 270 */
wim 0:5eb5fee234e8 271 void LC75711::_writeCmd(char cmd, char data1, char data0, char delay){
wim 0:5eb5fee234e8 272
wim 0:5eb5fee234e8 273 _cs=0; // Prepare to send Address
wim 0:5eb5fee234e8 274 wait_us(1);
wim 0:5eb5fee234e8 275
wim 0:5eb5fee234e8 276 _spi.write(_flip(LC75711_ADDRESS)); // Address
wim 0:5eb5fee234e8 277
wim 0:5eb5fee234e8 278 _cs=1; // Latch Address, Prepare to send Command & Params
wim 0:5eb5fee234e8 279 wait_us(1);
wim 0:5eb5fee234e8 280
wim 0:5eb5fee234e8 281 _spi.write(_flip(data0)); // B0..B7
wim 0:5eb5fee234e8 282
wim 0:5eb5fee234e8 283 _spi.write(_flip(data1)); // B8..B15
wim 0:5eb5fee234e8 284
wim 0:5eb5fee234e8 285 _spi.write(_flip(cmd)); // B16..B23, Command register & value
wim 0:5eb5fee234e8 286
wim 0:5eb5fee234e8 287 wait_us(1);
wim 0:5eb5fee234e8 288 _cs=0; // Latch Command & Params
wim 0:5eb5fee234e8 289
wim 0:5eb5fee234e8 290 wait_us(delay); // Command Delay
wim 0:5eb5fee234e8 291 }
wim 0:5eb5fee234e8 292
wim 0:5eb5fee234e8 293
wim 0:5eb5fee234e8 294 /** Helper to reverse all command or databits. The LC75711 expects LSB first, whereas SPI is MSB first
wim 1:bcf010fcacae 295 *
wim 0:5eb5fee234e8 296 * @param char data
wim 0:5eb5fee234e8 297 * @return bitreversed data
wim 0:5eb5fee234e8 298 */
wim 0:5eb5fee234e8 299 char LC75711::_flip(char data) {
wim 0:5eb5fee234e8 300 char value=0;
wim 0:5eb5fee234e8 301
wim 0:5eb5fee234e8 302 if (data & 0x01) {value |= 0x80;} ;
wim 0:5eb5fee234e8 303 if (data & 0x02) {value |= 0x40;} ;
wim 0:5eb5fee234e8 304 if (data & 0x04) {value |= 0x20;} ;
wim 0:5eb5fee234e8 305 if (data & 0x08) {value |= 0x10;} ;
wim 0:5eb5fee234e8 306 if (data & 0x10) {value |= 0x08;} ;
wim 0:5eb5fee234e8 307 if (data & 0x20) {value |= 0x04;} ;
wim 0:5eb5fee234e8 308 if (data & 0x40) {value |= 0x02;} ;
wim 0:5eb5fee234e8 309 if (data & 0x80) {value |= 0x01;} ;
wim 0:5eb5fee234e8 310 return value;
wim 0:5eb5fee234e8 311 }
wim 0:5eb5fee234e8 312
wim 0:5eb5fee234e8 313
wim 0:5eb5fee234e8 314
wim 0:5eb5fee234e8 315
wim 0:5eb5fee234e8 316 #if (ASTON_TEST == 1)
wim 0:5eb5fee234e8 317
wim 0:5eb5fee234e8 318 /** Constructor for class for Sanyo LC75711 VFD controller as used in ASTON
wim 0:5eb5fee234e8 319 *
wim 0:5eb5fee234e8 320 * @brief Supports 10 Grids of 35 Segments without additional Segments and uses Grid 11 for Icon segments.
wim 0:5eb5fee234e8 321 *
wim 0:5eb5fee234e8 322 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:5eb5fee234e8 323 */
wim 0:5eb5fee234e8 324 LC75711_ASTON::LC75711_ASTON(PinName mosi, PinName sclk, PinName cs) : LC75711(mosi, sclk, cs, Grid11_Add8) {
wim 0:5eb5fee234e8 325 _column = 0;
wim 0:5eb5fee234e8 326 _columns = ASTON_NR_DIGITS;
wim 0:5eb5fee234e8 327
wim 0:5eb5fee234e8 328 // Clear the _udc_icon (should be cleared at Reset)
wim 0:5eb5fee234e8 329 // for (int idx=0; idx < 7; idx++) {
wim 0:5eb5fee234e8 330 // _udc_icon = 0x00;
wim 0:5eb5fee234e8 331 // }
wim 0:5eb5fee234e8 332 }
wim 0:5eb5fee234e8 333
wim 0:5eb5fee234e8 334 /** Locate cursor to a screen column
wim 0:5eb5fee234e8 335 *
wim 0:5eb5fee234e8 336 * @param column The horizontal position from the left, indexed from 0
wim 1:bcf010fcacae 337 * @return none
wim 0:5eb5fee234e8 338 */
wim 0:5eb5fee234e8 339 void LC75711_ASTON::locate(int column) {
wim 0:5eb5fee234e8 340 //sanity check
wim 0:5eb5fee234e8 341 if (column < 0) {column = 0;}
wim 0:5eb5fee234e8 342 if (column > (_columns - 1)) {column = _columns - 1;}
wim 0:5eb5fee234e8 343
wim 0:5eb5fee234e8 344 _column = column;
wim 0:5eb5fee234e8 345 }
wim 0:5eb5fee234e8 346
wim 0:5eb5fee234e8 347
wim 0:5eb5fee234e8 348 /** Number of screen columns
wim 0:5eb5fee234e8 349 *
wim 0:5eb5fee234e8 350 * @param none
wim 0:5eb5fee234e8 351 * @return columns
wim 0:5eb5fee234e8 352 */
wim 0:5eb5fee234e8 353 int LC75711_ASTON::columns() {
wim 0:5eb5fee234e8 354 return _columns;
wim 0:5eb5fee234e8 355 }
wim 0:5eb5fee234e8 356
wim 0:5eb5fee234e8 357
wim 0:5eb5fee234e8 358 /** Clear the screen and locate to 0
wim 1:bcf010fcacae 359 *
wim 0:5eb5fee234e8 360 * @param bool clrAll Clear Icons also (default = false)
wim 1:bcf010fcacae 361 * @return none
wim 0:5eb5fee234e8 362 */
wim 0:5eb5fee234e8 363 void LC75711_ASTON::cls(bool clrAll) {
wim 0:5eb5fee234e8 364
wim 0:5eb5fee234e8 365 for (int cnt=0; cnt<ASTON_NR_DIGITS; cnt++) {
wim 0:5eb5fee234e8 366 writeData(char (' '), cnt); // data
wim 0:5eb5fee234e8 367 }
wim 0:5eb5fee234e8 368
wim 0:5eb5fee234e8 369 if (clrAll) {
wim 0:5eb5fee234e8 370 for (int cnt=0; cnt<ASTON_NR_DIGITS; cnt++) {
wim 0:5eb5fee234e8 371 writeAData(0x00, cnt); // adata
wim 0:5eb5fee234e8 372 }
wim 0:5eb5fee234e8 373
wim 0:5eb5fee234e8 374 //Clear Icons
wim 0:5eb5fee234e8 375 //
wim 0:5eb5fee234e8 376 }
wim 0:5eb5fee234e8 377
wim 0:5eb5fee234e8 378 _column = 0;
wim 0:5eb5fee234e8 379 }
wim 0:5eb5fee234e8 380
wim 0:5eb5fee234e8 381
wim 0:5eb5fee234e8 382 /** Set Icon
wim 0:5eb5fee234e8 383 *
wim 0:5eb5fee234e8 384 * @param Icon Enums Icon Encodes UDC_0 byte index in 8 MSBs and encodes Icon bit/segment in 8 LSBs
wim 0:5eb5fee234e8 385 * @return none
wim 0:5eb5fee234e8 386 */
wim 0:5eb5fee234e8 387 void LC75711_ASTON::setIcon(Icon icon){
wim 0:5eb5fee234e8 388 int byte_idx, bits;
wim 0:5eb5fee234e8 389
wim 0:5eb5fee234e8 390 byte_idx = (icon >> 8) & 0x07; // Decode byte index and sanity mask
wim 0:5eb5fee234e8 391 bits = (1 << (icon & 0x07)) & 0x1F; // Decode bits and sanity mask
wim 0:5eb5fee234e8 392
wim 0:5eb5fee234e8 393 //Set the segment bit for the Icon
wim 0:5eb5fee234e8 394 _udc_icon[byte_idx] |= bits;
wim 0:5eb5fee234e8 395
wim 0:5eb5fee234e8 396 //Update UDC_0 used to display the Icons at Grid 11
wim 0:5eb5fee234e8 397 setUDC(0, _udc_icon);
wim 0:5eb5fee234e8 398 }
wim 0:5eb5fee234e8 399
wim 0:5eb5fee234e8 400 /** Clr Icon
wim 0:5eb5fee234e8 401 *
wim 0:5eb5fee234e8 402 * @param Icon Enums Icon Encodes UDC_0 byte index in 8 MSBs and encodes Icon bit/segment in 8 LSBs
wim 0:5eb5fee234e8 403 * @return none
wim 0:5eb5fee234e8 404 */
wim 0:5eb5fee234e8 405 void LC75711_ASTON::clrIcon(Icon icon) {
wim 0:5eb5fee234e8 406 int byte_idx, bits;
wim 0:5eb5fee234e8 407
wim 0:5eb5fee234e8 408 byte_idx = (icon >> 8) & 0x07; // Decode byte index and sanity mask
wim 0:5eb5fee234e8 409 bits = (1 << (icon & 0x07)) & 0x1F; // Decode bits and sanity mask
wim 0:5eb5fee234e8 410
wim 0:5eb5fee234e8 411 //Clear the segment bit for the Icon
wim 0:5eb5fee234e8 412 _udc_icon[byte_idx] &= ~bits;
wim 0:5eb5fee234e8 413
wim 0:5eb5fee234e8 414 //Update UDC_0 used to display the Icons at Grid 11
wim 0:5eb5fee234e8 415 setUDC(0, _udc_icon);
wim 0:5eb5fee234e8 416 }
wim 0:5eb5fee234e8 417
wim 0:5eb5fee234e8 418 /** Write a single character (Stream implementation)
wim 1:bcf010fcacae 419 *
wim 1:bcf010fcacae 420 * @param value char to print
wim 1:bcf010fcacae 421 * @return value;
wim 0:5eb5fee234e8 422 */
wim 0:5eb5fee234e8 423 int LC75711_ASTON::_putc(int value) {
wim 0:5eb5fee234e8 424 int addr;
wim 0:5eb5fee234e8 425
wim 0:5eb5fee234e8 426 if ((value == '\n') || (value == '\r')) {
wim 0:5eb5fee234e8 427 //No character to write
wim 0:5eb5fee234e8 428
wim 0:5eb5fee234e8 429 //Update Cursor
wim 0:5eb5fee234e8 430 _column = 0;
wim 0:5eb5fee234e8 431 }
wim 0:5eb5fee234e8 432 else if ((value >= 0) && (value < 192)) {
wim 0:5eb5fee234e8 433 //Character to write
wim 0:5eb5fee234e8 434
wim 0:5eb5fee234e8 435 //Translate between _column and displaybuffer entries
wim 0:5eb5fee234e8 436 //Note that the ASTON has 1 digit/grids.
wim 0:5eb5fee234e8 437 //_column == 0 => Grid10 => addr = 9
wim 0:5eb5fee234e8 438 //_column == 1 => Grid9 => addr = 8
wim 0:5eb5fee234e8 439 // ....
wim 0:5eb5fee234e8 440 //_column == 9 => Grid1 => addr = 0
wim 0:5eb5fee234e8 441 addr = (9 - _column); // 1 Byte for every Grid;
wim 0:5eb5fee234e8 442
wim 0:5eb5fee234e8 443 writeData(value, addr);
wim 0:5eb5fee234e8 444
wim 0:5eb5fee234e8 445 //Update Cursor
wim 0:5eb5fee234e8 446 _column++;
wim 0:5eb5fee234e8 447 if (_column > (ASTON_NR_DIGITS - 1)) {
wim 0:5eb5fee234e8 448 _column = 0;
wim 0:5eb5fee234e8 449 }
wim 0:5eb5fee234e8 450
wim 0:5eb5fee234e8 451 } // if validChar
wim 0:5eb5fee234e8 452
wim 0:5eb5fee234e8 453 return value;
wim 0:5eb5fee234e8 454 }
wim 0:5eb5fee234e8 455
wim 1:bcf010fcacae 456 /** Get a single character (Stream implementation)
wim 1:bcf010fcacae 457 *
wim 1:bcf010fcacae 458 * @param none
wim 1:bcf010fcacae 459 * @return -1
wim 1:bcf010fcacae 460 */
wim 0:5eb5fee234e8 461 int LC75711_ASTON::_getc() {
wim 0:5eb5fee234e8 462 return -1;
wim 0:5eb5fee234e8 463 }
wim 0:5eb5fee234e8 464 #endif