Wim Huiskamp / LC75711

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

Dependents:   mbed_LC75711

The component page is here.

LC75711.cpp@2:cb6f2b7930c8, 2017-09-15 (annotated)

Committer:
wim
Date:
Fri Sep 15 17:38:40 2017 +0000
Revision:
2:cb6f2b7930c8
Parent:
1:bcf010fcacae 
Modified setBlink(), added clrBlink()

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 2:cb6f2b7930c8 6 * 2017, v03: WH, Modified setBlink
wim 0:5eb5fee234e8 7 *
wim 0:5eb5fee234e8 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
wim 0:5eb5fee234e8 9 * of this software and associated documentation files (the "Software"), to deal
wim 0:5eb5fee234e8 10 * in the Software without restriction, including without limitation the rights
wim 0:5eb5fee234e8 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
wim 0:5eb5fee234e8 12 * copies of the Software, and to permit persons to whom the Software is
wim 0:5eb5fee234e8 13 * furnished to do so, subject to the following conditions:
wim 0:5eb5fee234e8 14 *
wim 0:5eb5fee234e8 15 * The above copyright notice and this permission notice shall be included in
wim 0:5eb5fee234e8 16 * all copies or substantial portions of the Software.
wim 0:5eb5fee234e8 17 *
wim 0:5eb5fee234e8 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
wim 0:5eb5fee234e8 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
wim 0:5eb5fee234e8 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
wim 0:5eb5fee234e8 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
wim 0:5eb5fee234e8 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wim 0:5eb5fee234e8 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
wim 0:5eb5fee234e8 24 * THE SOFTWARE.
wim 0:5eb5fee234e8 25 */
wim 0:5eb5fee234e8 26
wim 0:5eb5fee234e8 27 #include "mbed.h"
wim 0:5eb5fee234e8 28 #include "LC75711.h"
wim 0:5eb5fee234e8 29 #include "LC75711_UDC.inc"
wim 0:5eb5fee234e8 30
wim 0:5eb5fee234e8 31
wim 0:5eb5fee234e8 32 /** Constructor for class for driving Sanyo LC75711 VFD controller
wim 0:5eb5fee234e8 33 *
wim 1:bcf010fcacae 34 * @brief Supports upto 16 Grids of 35 matrix segments. Also supports 3-8 additional segments (depending on number of grids).
wim 1:bcf010fcacae 35 * SPI bus interface device.
wim 0:5eb5fee234e8 36 * @param PinName mosi, sclk, cs SPI bus pins
wim 0:5eb5fee234e8 37 * @param Mode selects number of Grids and Segments (default 11 Grids, 35 matrix segments, 8 additional segments)
wim 0:5eb5fee234e8 38 */
wim 0:5eb5fee234e8 39 LC75711::LC75711(PinName mosi, PinName sclk, PinName cs, Mode mode) : _spi(mosi,NC,sclk), _cs(cs), _mode(mode) {
wim 0:5eb5fee234e8 40
wim 0:5eb5fee234e8 41 _init();
wim 0:5eb5fee234e8 42 }
wim 0:5eb5fee234e8 43
wim 0:5eb5fee234e8 44 /** Init the LC75711 interface and the controller
wim 1:bcf010fcacae 45 *
wim 0:5eb5fee234e8 46 * @param none
wim 0:5eb5fee234e8 47 * @return none
wim 0:5eb5fee234e8 48 */
wim 0:5eb5fee234e8 49 void LC75711::_init(){
wim 0:5eb5fee234e8 50
wim 0:5eb5fee234e8 51 //init SPI
wim 0:5eb5fee234e8 52 _cs=0;
wim 0:5eb5fee234e8 53 _spi.format(8,0); //LC75711 uses mode 0 (Clock Low on Idle, Data latched on first (=rising) edge)
wim 0:5eb5fee234e8 54 // _spi.frequency(100000);
wim 0:5eb5fee234e8 55 _spi.frequency(250000);
wim 0:5eb5fee234e8 56
wim 0:5eb5fee234e8 57 //init controller
wim 0:5eb5fee234e8 58
wim 0:5eb5fee234e8 59 // Set number of Grids
wim 0:5eb5fee234e8 60 _writeCmd((LC75711_GRID_REG | _mode), // B16..B23, Command register & value
wim 0:5eb5fee234e8 61 0x00, // B8..B15, Dummy
wim 0:5eb5fee234e8 62 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 63 LC75711_GRID_DLY); // Command Delay
wim 0:5eb5fee234e8 64
wim 0:5eb5fee234e8 65 _setAddress(0, 0); // No shift
wim 0:5eb5fee234e8 66
wim 0:5eb5fee234e8 67 setBlink(false); // No Blink
wim 0:5eb5fee234e8 68 setBrightness(LC75711_BRT_DEF); // Default Brightness
wim 0:5eb5fee234e8 69
wim 0:5eb5fee234e8 70 // Clear the DCRAM (undefined at Reset)
wim 0:5eb5fee234e8 71 cls();
wim 0:5eb5fee234e8 72
wim 0:5eb5fee234e8 73 // Clear the UDC RAM (undefined at Reset)
wim 0:5eb5fee234e8 74 const char udc_none[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00};
wim 0:5eb5fee234e8 75 for (int idx=0; idx < LC75711_NR_UDC; idx++) {
wim 0:5eb5fee234e8 76 setUDC(idx, (char *)udc_none);
wim 0:5eb5fee234e8 77 }
wim 0:5eb5fee234e8 78
wim 0:5eb5fee234e8 79 setDisplay(true); // Display On
wim 0:5eb5fee234e8 80 }
wim 0:5eb5fee234e8 81
wim 0:5eb5fee234e8 82
wim 0:5eb5fee234e8 83 /** Clear the screen and locate to 0
wim 1:bcf010fcacae 84 *
wim 1:bcf010fcacae 85 * @param none
wim 1:bcf010fcacae 86 * @return none
wim 1:bcf010fcacae 87 */
wim 0:5eb5fee234e8 88 void LC75711::cls() {
wim 0:5eb5fee234e8 89
wim 0:5eb5fee234e8 90 for (int cnt=0; cnt<LC75711_DISPLAY_MEM; cnt++) {
wim 0:5eb5fee234e8 91 writeData(char (' '), cnt); // data
wim 0:5eb5fee234e8 92 // writeData(0x00, cnt); // data
wim 0:5eb5fee234e8 93 }
wim 0:5eb5fee234e8 94
wim 0:5eb5fee234e8 95 for (int cnt=0; cnt<LC75711_ADD_MEM; cnt++) {
wim 0:5eb5fee234e8 96 writeData(0x00, cnt); // adata
wim 0:5eb5fee234e8 97 }
wim 0:5eb5fee234e8 98 }
wim 0:5eb5fee234e8 99
wim 0:5eb5fee234e8 100 /** Set the Blink mode
wim 0:5eb5fee234e8 101 *
wim 2:cb6f2b7930c8 102 * @param int grids selected grids for Blinking enable (default = all)
wim 1:bcf010fcacae 103 * @return none
wim 0:5eb5fee234e8 104 */
wim 2:cb6f2b7930c8 105 void LC75711::setBlink(int grids) {
wim 0:5eb5fee234e8 106
wim 0:5eb5fee234e8 107 // Sanity check and update of local shadow
wim 2:cb6f2b7930c8 108 _blink = _blink | (grids & LC75711_GR_MSK); // Set grid bits
wim 0:5eb5fee234e8 109
wim 0:5eb5fee234e8 110 _writeCmd((LC75711_BLNK_REG | LC75711_BLNK_ON), // B16..B23, Command register & value
wim 0:5eb5fee234e8 111 ((_blink >> 8) & 0xFF), // B8..B15, GR8..GR16
wim 0:5eb5fee234e8 112 ( _blink & 0xFF), // B0..B7, GR1..GR7
wim 0:5eb5fee234e8 113 LC75711_BLNK_DLY); // Command Delay
wim 0:5eb5fee234e8 114 }
wim 0:5eb5fee234e8 115
wim 2:cb6f2b7930c8 116 /** Clr the Blink mode
wim 2:cb6f2b7930c8 117 *
wim 2:cb6f2b7930c8 118 * @param int grids selected grids for Blinking disable (default = all)
wim 2:cb6f2b7930c8 119 * @return none
wim 2:cb6f2b7930c8 120 */
wim 2:cb6f2b7930c8 121 void LC75711::clrBlink(int grids) {
wim 2:cb6f2b7930c8 122
wim 2:cb6f2b7930c8 123 // Sanity check and update of local shadow
wim 2:cb6f2b7930c8 124 _blink = _blink & ~(grids & LC75711_GR_MSK); // Clr grid bits
wim 2:cb6f2b7930c8 125
wim 2:cb6f2b7930c8 126 _writeCmd((LC75711_BLNK_REG | LC75711_BLNK_ON), // B16..B23, Command register & value
wim 2:cb6f2b7930c8 127 ((_blink >> 8) & 0xFF), // B8..B15, GR8..GR16
wim 2:cb6f2b7930c8 128 ( _blink & 0xFF), // B0..B7, GR1..GR7
wim 2:cb6f2b7930c8 129 LC75711_BLNK_DLY); // Command Delay
wim 2:cb6f2b7930c8 130 }
wim 0:5eb5fee234e8 131
wim 0:5eb5fee234e8 132 /** Set Brightness
wim 0:5eb5fee234e8 133 *
wim 0:5eb5fee234e8 134 * @param char brightness (8 significant bits, valid range 0..239 (dutycycle linked to number of grids)
wim 0:5eb5fee234e8 135 * @return none
wim 0:5eb5fee234e8 136 */
wim 0:5eb5fee234e8 137 void LC75711::setBrightness(char brightness){
wim 0:5eb5fee234e8 138
wim 0:5eb5fee234e8 139 //Sanity check
wim 0:5eb5fee234e8 140 brightness = brightness & LC75711_BRT_MSK; // mask invalid bits
wim 0:5eb5fee234e8 141 if (brightness > 239) {brightness = 239;}
wim 0:5eb5fee234e8 142
wim 0:5eb5fee234e8 143 _writeCmd((LC75711_BRT_REG), // B16..B23, Command register
wim 0:5eb5fee234e8 144 brightness, // B8..B15, Brightness
wim 0:5eb5fee234e8 145 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 146 LC75711_BRT_DLY); // Command Delay
wim 0:5eb5fee234e8 147 }
wim 0:5eb5fee234e8 148
wim 0:5eb5fee234e8 149 /** Set the Display mode On/off
wim 0:5eb5fee234e8 150 *
wim 0:5eb5fee234e8 151 * @param bool display mode
wim 1:bcf010fcacae 152 * @return none
wim 0:5eb5fee234e8 153 */
wim 0:5eb5fee234e8 154 void LC75711::setDisplay(bool on) {
wim 0:5eb5fee234e8 155 char display;
wim 0:5eb5fee234e8 156
wim 0:5eb5fee234e8 157 if (on) {
wim 0:5eb5fee234e8 158 display = LC75711_DSPL_ON;
wim 0:5eb5fee234e8 159 }
wim 0:5eb5fee234e8 160 else {
wim 0:5eb5fee234e8 161 display = LC75711_DSPL_OFF;
wim 0:5eb5fee234e8 162 }
wim 0:5eb5fee234e8 163
wim 0:5eb5fee234e8 164 _writeCmd((LC75711_DSPL_REG | display), // B16..B23, Command register & value
wim 0:5eb5fee234e8 165 0xFF, // B8..B15, GR8..GR16
wim 0:5eb5fee234e8 166 0xFF, // B0..B7, GR1..GR7
wim 0:5eb5fee234e8 167 LC75711_DSPL_DLY); // Command Delay
wim 0:5eb5fee234e8 168 }
wim 0:5eb5fee234e8 169
wim 0:5eb5fee234e8 170
wim 0:5eb5fee234e8 171 /** Set User Defined Characters (UDC)
wim 0:5eb5fee234e8 172 *
wim 0:5eb5fee234e8 173 * @param unsigned char udc_idx The Index of the UDC (0..7)
wim 1:bcf010fcacae 174 * @param UDCData_t udc_data The bitpattern for the UDC (7 bytes)
wim 1:bcf010fcacae 175 * @return none
wim 0:5eb5fee234e8 176 */
wim 0:5eb5fee234e8 177 void LC75711::setUDC(unsigned char udc_idx, UDCData_t udc_data) {
wim 0:5eb5fee234e8 178 char data;
wim 0:5eb5fee234e8 179
wim 0:5eb5fee234e8 180 //Sanity check
wim 0:5eb5fee234e8 181 udc_idx = udc_idx & LC75711_UDC_MSK; // mask invalid bits
wim 0:5eb5fee234e8 182
wim 0:5eb5fee234e8 183 _cs=0; // Prepare to send Address
wim 0:5eb5fee234e8 184 wait_us(1);
wim 0:5eb5fee234e8 185
wim 0:5eb5fee234e8 186 _spi.write(_flip(LC75711_ADDRESS)); // Address
wim 0:5eb5fee234e8 187
wim 0:5eb5fee234e8 188 _cs=1; // Latch Address, Prepare to send Command & Params
wim 0:5eb5fee234e8 189 wait_us(1);
wim 0:5eb5fee234e8 190
wim 0:5eb5fee234e8 191 data = ((udc_data[1] & 0x07) << 5) | ((udc_data[0] & 0x1F) << 0);
wim 0:5eb5fee234e8 192 _spi.write(_flip(data)); // B0..B7, AM1-AM8
wim 0:5eb5fee234e8 193
wim 0:5eb5fee234e8 194 data = ((udc_data[3] & 0x01) << 7) | ((udc_data[2] & 0x1F) << 2) | ((udc_data[1] & 0x18) >> 3);
wim 0:5eb5fee234e8 195 _spi.write(_flip(data)); // B8..B15, AM9-AM16
wim 0:5eb5fee234e8 196
wim 0:5eb5fee234e8 197 data = ((udc_data[4] & 0x0F) << 4) | ((udc_data[3] & 0x1E) >> 1);
wim 0:5eb5fee234e8 198 _spi.write(_flip(data)); // B16..B23, AM17-AM24
wim 0:5eb5fee234e8 199
wim 0:5eb5fee234e8 200 data = ((udc_data[6] & 0x03) << 6) | ((udc_data[5] & 0x1F) << 1) | ((udc_data[4] & 0x10) >> 4);
wim 0:5eb5fee234e8 201 _spi.write(_flip(data)); // B24..B31, AM25-AM32
wim 0:5eb5fee234e8 202
wim 0:5eb5fee234e8 203 data = ((udc_data[6] & 0x1C) >> 2);
wim 0:5eb5fee234e8 204 _spi.write(_flip(data)); // B32..B39, AM32-AM35
wim 0:5eb5fee234e8 205
wim 0:5eb5fee234e8 206 _spi.write(_flip(udc_idx)); // B40..B47, CA0-CA7
wim 0:5eb5fee234e8 207
wim 0:5eb5fee234e8 208 _spi.write(_flip(LC75711_UDC_REG)); // B48..B55, Command register
wim 0:5eb5fee234e8 209
wim 0:5eb5fee234e8 210 wait_us(1);
wim 0:5eb5fee234e8 211 _cs=0; // Latch Command & Params
wim 0:5eb5fee234e8 212
wim 0:5eb5fee234e8 213 wait_us(LC75711_UDC_DLY); // Command Delay
wim 0:5eb5fee234e8 214 }
wim 0:5eb5fee234e8 215
wim 0:5eb5fee234e8 216
wim 0:5eb5fee234e8 217 /** Write Data to LC75711
wim 1:bcf010fcacae 218 *
wim 1:bcf010fcacae 219 * @param char data Character code
wim 1:bcf010fcacae 220 * @param char address Parameter for data
wim 0:5eb5fee234e8 221 * @return none
wim 0:5eb5fee234e8 222 */
wim 0:5eb5fee234e8 223 void LC75711::writeData(char data, char address){
wim 0:5eb5fee234e8 224
wim 0:5eb5fee234e8 225 //Sanity check
wim 0:5eb5fee234e8 226 address = address & LC75711_DADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 227
wim 0:5eb5fee234e8 228 _writeCmd((LC75711_DATA_REG), // B16..B23, Command register
wim 0:5eb5fee234e8 229 address, // B8..B15, DCRAM address
wim 0:5eb5fee234e8 230 data, // B0..B7, Character code
wim 0:5eb5fee234e8 231 LC75711_DATA_DLY); // Command Delay
wim 0:5eb5fee234e8 232 }
wim 0:5eb5fee234e8 233
wim 0:5eb5fee234e8 234 /** Write Additional Data to LC75711
wim 1:bcf010fcacae 235 *
wim 1:bcf010fcacae 236 * @param char adata Additional code (annunciator)
wim 1:bcf010fcacae 237 * @param char address Parameter for data
wim 0:5eb5fee234e8 238 * @return none
wim 0:5eb5fee234e8 239 */
wim 0:5eb5fee234e8 240 void LC75711::writeAData(char adata, char address){
wim 0:5eb5fee234e8 241
wim 0:5eb5fee234e8 242 //Sanity check
wim 0:5eb5fee234e8 243 address = address & LC75711_AADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 244
wim 0:5eb5fee234e8 245 _writeCmd((LC75711_ADAT_REG | address), // B16..B23, Command register & ADRAM address
wim 0:5eb5fee234e8 246 adata, // B8..B15, ADATA
wim 0:5eb5fee234e8 247 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 248 LC75711_ADAT_DLY); // Command Delay
wim 0:5eb5fee234e8 249 }
wim 0:5eb5fee234e8 250
wim 0:5eb5fee234e8 251
wim 0:5eb5fee234e8 252 /** Set Address
wim 1:bcf010fcacae 253 *
wim 1:bcf010fcacae 254 * @param char RAM address for data displayed at Grid1 (0..63)
wim 1:bcf010fcacae 255 * @param char RAM address for adata displayed at Grid1 (0..15)
wim 0:5eb5fee234e8 256 * @return none
wim 0:5eb5fee234e8 257 *
wim 1:bcf010fcacae 258 * Note that a Shift (L/R) command will change the Address of data displayed at Grid1
wim 0:5eb5fee234e8 259 */
wim 0:5eb5fee234e8 260 void LC75711::_setAddress(char data_addr, char adata_addr){
wim 0:5eb5fee234e8 261
wim 0:5eb5fee234e8 262 //Sanity check
wim 0:5eb5fee234e8 263 data_addr = data_addr & LC75711_DADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 264 adata_addr = adata_addr & LC75711_AADR_MSK; // mask invalid bits
wim 0:5eb5fee234e8 265
wim 0:5eb5fee234e8 266 _writeCmd((LC75711_AC_REG | adata_addr), // B16..B23, Command register & ADRAM address
wim 0:5eb5fee234e8 267 data_addr, // B8..B15, DCRAM address
wim 0:5eb5fee234e8 268 0x00, // B0..B7, Dummy
wim 0:5eb5fee234e8 269 LC75711_AC_DLY); // Command Delay
wim 0:5eb5fee234e8 270 }
wim 0:5eb5fee234e8 271
wim 0:5eb5fee234e8 272
wim 0:5eb5fee234e8 273 /** Write command and parameters to LC75711
wim 1:bcf010fcacae 274 *
wim 1:bcf010fcacae 275 * @param char cmd Command byte
wim 1:bcf010fcacae 276 * @param char data1 Parameters for command
wim 1:bcf010fcacae 277 * @param char data0 Parameters for command
wim 1:bcf010fcacae 278 * @param char delay Delay for command execution
wim 0:5eb5fee234e8 279 * @return none
wim 0:5eb5fee234e8 280 */
wim 0:5eb5fee234e8 281 void LC75711::_writeCmd(char cmd, char data1, char data0, char delay){
wim 0:5eb5fee234e8 282
wim 0:5eb5fee234e8 283 _cs=0; // Prepare to send Address
wim 0:5eb5fee234e8 284 wait_us(1);
wim 0:5eb5fee234e8 285
wim 0:5eb5fee234e8 286 _spi.write(_flip(LC75711_ADDRESS)); // Address
wim 0:5eb5fee234e8 287
wim 0:5eb5fee234e8 288 _cs=1; // Latch Address, Prepare to send Command & Params
wim 0:5eb5fee234e8 289 wait_us(1);
wim 0:5eb5fee234e8 290
wim 0:5eb5fee234e8 291 _spi.write(_flip(data0)); // B0..B7
wim 0:5eb5fee234e8 292
wim 0:5eb5fee234e8 293 _spi.write(_flip(data1)); // B8..B15
wim 0:5eb5fee234e8 294
wim 0:5eb5fee234e8 295 _spi.write(_flip(cmd)); // B16..B23, Command register & value
wim 0:5eb5fee234e8 296
wim 0:5eb5fee234e8 297 wait_us(1);
wim 0:5eb5fee234e8 298 _cs=0; // Latch Command & Params
wim 0:5eb5fee234e8 299
wim 0:5eb5fee234e8 300 wait_us(delay); // Command Delay
wim 0:5eb5fee234e8 301 }
wim 0:5eb5fee234e8 302
wim 0:5eb5fee234e8 303
wim 0:5eb5fee234e8 304 /** Helper to reverse all command or databits. The LC75711 expects LSB first, whereas SPI is MSB first
wim 1:bcf010fcacae 305 *
wim 0:5eb5fee234e8 306 * @param char data
wim 0:5eb5fee234e8 307 * @return bitreversed data
wim 0:5eb5fee234e8 308 */
wim 0:5eb5fee234e8 309 char LC75711::_flip(char data) {
wim 0:5eb5fee234e8 310 char value=0;
wim 0:5eb5fee234e8 311
wim 0:5eb5fee234e8 312 if (data & 0x01) {value |= 0x80;} ;
wim 0:5eb5fee234e8 313 if (data & 0x02) {value |= 0x40;} ;
wim 0:5eb5fee234e8 314 if (data & 0x04) {value |= 0x20;} ;
wim 0:5eb5fee234e8 315 if (data & 0x08) {value |= 0x10;} ;
wim 0:5eb5fee234e8 316 if (data & 0x10) {value |= 0x08;} ;
wim 0:5eb5fee234e8 317 if (data & 0x20) {value |= 0x04;} ;
wim 0:5eb5fee234e8 318 if (data & 0x40) {value |= 0x02;} ;
wim 0:5eb5fee234e8 319 if (data & 0x80) {value |= 0x01;} ;
wim 0:5eb5fee234e8 320 return value;
wim 0:5eb5fee234e8 321 }
wim 0:5eb5fee234e8 322
wim 0:5eb5fee234e8 323
wim 0:5eb5fee234e8 324
wim 0:5eb5fee234e8 325
wim 0:5eb5fee234e8 326 #if (ASTON_TEST == 1)
wim 0:5eb5fee234e8 327
wim 0:5eb5fee234e8 328 /** Constructor for class for Sanyo LC75711 VFD controller as used in ASTON
wim 0:5eb5fee234e8 329 *
wim 0:5eb5fee234e8 330 * @brief Supports 10 Grids of 35 Segments without additional Segments and uses Grid 11 for Icon segments.
wim 0:5eb5fee234e8 331 *
wim 0:5eb5fee234e8 332 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:5eb5fee234e8 333 */
wim 0:5eb5fee234e8 334 LC75711_ASTON::LC75711_ASTON(PinName mosi, PinName sclk, PinName cs) : LC75711(mosi, sclk, cs, Grid11_Add8) {
wim 0:5eb5fee234e8 335 _column = 0;
wim 0:5eb5fee234e8 336 _columns = ASTON_NR_DIGITS;
wim 0:5eb5fee234e8 337
wim 0:5eb5fee234e8 338 // Clear the _udc_icon (should be cleared at Reset)
wim 0:5eb5fee234e8 339 // for (int idx=0; idx < 7; idx++) {
wim 0:5eb5fee234e8 340 // _udc_icon = 0x00;
wim 0:5eb5fee234e8 341 // }
wim 0:5eb5fee234e8 342 }
wim 0:5eb5fee234e8 343
wim 0:5eb5fee234e8 344 /** Locate cursor to a screen column
wim 0:5eb5fee234e8 345 *
wim 0:5eb5fee234e8 346 * @param column The horizontal position from the left, indexed from 0
wim 1:bcf010fcacae 347 * @return none
wim 0:5eb5fee234e8 348 */
wim 0:5eb5fee234e8 349 void LC75711_ASTON::locate(int column) {
wim 0:5eb5fee234e8 350 //sanity check
wim 0:5eb5fee234e8 351 if (column < 0) {column = 0;}
wim 0:5eb5fee234e8 352 if (column > (_columns - 1)) {column = _columns - 1;}
wim 0:5eb5fee234e8 353
wim 0:5eb5fee234e8 354 _column = column;
wim 0:5eb5fee234e8 355 }
wim 0:5eb5fee234e8 356
wim 0:5eb5fee234e8 357
wim 0:5eb5fee234e8 358 /** Number of screen columns
wim 0:5eb5fee234e8 359 *
wim 0:5eb5fee234e8 360 * @param none
wim 0:5eb5fee234e8 361 * @return columns
wim 0:5eb5fee234e8 362 */
wim 0:5eb5fee234e8 363 int LC75711_ASTON::columns() {
wim 0:5eb5fee234e8 364 return _columns;
wim 0:5eb5fee234e8 365 }
wim 0:5eb5fee234e8 366
wim 0:5eb5fee234e8 367
wim 0:5eb5fee234e8 368 /** Clear the screen and locate to 0
wim 1:bcf010fcacae 369 *
wim 0:5eb5fee234e8 370 * @param bool clrAll Clear Icons also (default = false)
wim 1:bcf010fcacae 371 * @return none
wim 0:5eb5fee234e8 372 */
wim 0:5eb5fee234e8 373 void LC75711_ASTON::cls(bool clrAll) {
wim 0:5eb5fee234e8 374
wim 0:5eb5fee234e8 375 for (int cnt=0; cnt<ASTON_NR_DIGITS; cnt++) {
wim 0:5eb5fee234e8 376 writeData(char (' '), cnt); // data
wim 0:5eb5fee234e8 377 }
wim 0:5eb5fee234e8 378
wim 0:5eb5fee234e8 379 if (clrAll) {
wim 0:5eb5fee234e8 380 for (int cnt=0; cnt<ASTON_NR_DIGITS; cnt++) {
wim 0:5eb5fee234e8 381 writeAData(0x00, cnt); // adata
wim 0:5eb5fee234e8 382 }
wim 0:5eb5fee234e8 383
wim 0:5eb5fee234e8 384 //Clear Icons
wim 0:5eb5fee234e8 385 //
wim 0:5eb5fee234e8 386 }
wim 0:5eb5fee234e8 387
wim 0:5eb5fee234e8 388 _column = 0;
wim 0:5eb5fee234e8 389 }
wim 0:5eb5fee234e8 390
wim 0:5eb5fee234e8 391
wim 0:5eb5fee234e8 392 /** Set Icon
wim 0:5eb5fee234e8 393 *
wim 0:5eb5fee234e8 394 * @param Icon Enums Icon Encodes UDC_0 byte index in 8 MSBs and encodes Icon bit/segment in 8 LSBs
wim 0:5eb5fee234e8 395 * @return none
wim 0:5eb5fee234e8 396 */
wim 0:5eb5fee234e8 397 void LC75711_ASTON::setIcon(Icon icon){
wim 0:5eb5fee234e8 398 int byte_idx, bits;
wim 0:5eb5fee234e8 399
wim 0:5eb5fee234e8 400 byte_idx = (icon >> 8) & 0x07; // Decode byte index and sanity mask
wim 0:5eb5fee234e8 401 bits = (1 << (icon & 0x07)) & 0x1F; // Decode bits and sanity mask
wim 0:5eb5fee234e8 402
wim 0:5eb5fee234e8 403 //Set the segment bit for the Icon
wim 0:5eb5fee234e8 404 _udc_icon[byte_idx] |= bits;
wim 0:5eb5fee234e8 405
wim 0:5eb5fee234e8 406 //Update UDC_0 used to display the Icons at Grid 11
wim 0:5eb5fee234e8 407 setUDC(0, _udc_icon);
wim 0:5eb5fee234e8 408 }
wim 0:5eb5fee234e8 409
wim 0:5eb5fee234e8 410 /** Clr Icon
wim 0:5eb5fee234e8 411 *
wim 0:5eb5fee234e8 412 * @param Icon Enums Icon Encodes UDC_0 byte index in 8 MSBs and encodes Icon bit/segment in 8 LSBs
wim 0:5eb5fee234e8 413 * @return none
wim 0:5eb5fee234e8 414 */
wim 0:5eb5fee234e8 415 void LC75711_ASTON::clrIcon(Icon icon) {
wim 0:5eb5fee234e8 416 int byte_idx, bits;
wim 0:5eb5fee234e8 417
wim 0:5eb5fee234e8 418 byte_idx = (icon >> 8) & 0x07; // Decode byte index and sanity mask
wim 0:5eb5fee234e8 419 bits = (1 << (icon & 0x07)) & 0x1F; // Decode bits and sanity mask
wim 0:5eb5fee234e8 420
wim 0:5eb5fee234e8 421 //Clear the segment bit for the Icon
wim 0:5eb5fee234e8 422 _udc_icon[byte_idx] &= ~bits;
wim 0:5eb5fee234e8 423
wim 0:5eb5fee234e8 424 //Update UDC_0 used to display the Icons at Grid 11
wim 0:5eb5fee234e8 425 setUDC(0, _udc_icon);
wim 0:5eb5fee234e8 426 }
wim 0:5eb5fee234e8 427
wim 0:5eb5fee234e8 428 /** Write a single character (Stream implementation)
wim 1:bcf010fcacae 429 *
wim 1:bcf010fcacae 430 * @param value char to print
wim 1:bcf010fcacae 431 * @return value;
wim 0:5eb5fee234e8 432 */
wim 0:5eb5fee234e8 433 int LC75711_ASTON::_putc(int value) {
wim 0:5eb5fee234e8 434 int addr;
wim 0:5eb5fee234e8 435
wim 0:5eb5fee234e8 436 if ((value == '\n') || (value == '\r')) {
wim 0:5eb5fee234e8 437 //No character to write
wim 0:5eb5fee234e8 438
wim 0:5eb5fee234e8 439 //Update Cursor
wim 0:5eb5fee234e8 440 _column = 0;
wim 0:5eb5fee234e8 441 }
wim 0:5eb5fee234e8 442 else if ((value >= 0) && (value < 192)) {
wim 0:5eb5fee234e8 443 //Character to write
wim 0:5eb5fee234e8 444
wim 0:5eb5fee234e8 445 //Translate between _column and displaybuffer entries
wim 0:5eb5fee234e8 446 //Note that the ASTON has 1 digit/grids.
wim 0:5eb5fee234e8 447 //_column == 0 => Grid10 => addr = 9
wim 0:5eb5fee234e8 448 //_column == 1 => Grid9 => addr = 8
wim 0:5eb5fee234e8 449 // ....
wim 0:5eb5fee234e8 450 //_column == 9 => Grid1 => addr = 0
wim 0:5eb5fee234e8 451 addr = (9 - _column); // 1 Byte for every Grid;
wim 0:5eb5fee234e8 452
wim 0:5eb5fee234e8 453 writeData(value, addr);
wim 0:5eb5fee234e8 454
wim 0:5eb5fee234e8 455 //Update Cursor
wim 0:5eb5fee234e8 456 _column++;
wim 0:5eb5fee234e8 457 if (_column > (ASTON_NR_DIGITS - 1)) {
wim 0:5eb5fee234e8 458 _column = 0;
wim 0:5eb5fee234e8 459 }
wim 0:5eb5fee234e8 460
wim 0:5eb5fee234e8 461 } // if validChar
wim 0:5eb5fee234e8 462
wim 0:5eb5fee234e8 463 return value;
wim 0:5eb5fee234e8 464 }
wim 0:5eb5fee234e8 465
wim 1:bcf010fcacae 466 /** Get a single character (Stream implementation)
wim 1:bcf010fcacae 467 *
wim 1:bcf010fcacae 468 * @param none
wim 1:bcf010fcacae 469 * @return -1
wim 1:bcf010fcacae 470 */
wim 0:5eb5fee234e8 471 int LC75711_ASTON::_getc() {
wim 0:5eb5fee234e8 472 return -1;
wim 0:5eb5fee234e8 473 }
wim 0:5eb5fee234e8 474 #endif