Wim Huiskamp / STLED316S

LED Driver, 6 digits @ 8 segm, 8 LEDs, 16 Keys. SPI Interface

Dependents:   mbed_STLED316S

See here for more information.

STLED316S.cpp@1:7a845a89625f, 2016-10-01 (annotated)

Committer:
wim
Date:
Sat Oct 01 15:58:18 2016 +0000
Revision:
1:7a845a89625f
Parent:
0:2c5311a4f6fa 
Fixed example documentation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wim 0:2c5311a4f6fa 1 /* mbed STLED316S Library, for STLED316S LED controller
wim 0:2c5311a4f6fa 2 * Copyright (c) 2016, v01: WH, Initial version
wim 0:2c5311a4f6fa 3 *
wim 0:2c5311a4f6fa 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
wim 0:2c5311a4f6fa 5 * of this software and associated documentation files (the "Software"), to deal
wim 0:2c5311a4f6fa 6 * in the Software without restriction, including without limitation the rights
wim 0:2c5311a4f6fa 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
wim 0:2c5311a4f6fa 8 * copies of the Software, and to permit persons to whom the Software is
wim 0:2c5311a4f6fa 9 * furnished to do so, subject to the following conditions:
wim 0:2c5311a4f6fa 10 *
wim 0:2c5311a4f6fa 11 * The above copyright notice and this permission notice shall be included in
wim 0:2c5311a4f6fa 12 * all copies or substantial portions of the Software.
wim 0:2c5311a4f6fa 13 *
wim 0:2c5311a4f6fa 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
wim 0:2c5311a4f6fa 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
wim 0:2c5311a4f6fa 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
wim 0:2c5311a4f6fa 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
wim 0:2c5311a4f6fa 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wim 0:2c5311a4f6fa 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
wim 0:2c5311a4f6fa 20 * THE SOFTWARE.
wim 0:2c5311a4f6fa 21 */
wim 0:2c5311a4f6fa 22 #include "mbed.h"
wim 0:2c5311a4f6fa 23 #include "STLED316S.h"
wim 0:2c5311a4f6fa 24 #include "Font_7Seg.h"
wim 0:2c5311a4f6fa 25
wim 0:2c5311a4f6fa 26 /** Constructor for class for driving STLED316S LED controller with SPI bus interface device.
wim 0:2c5311a4f6fa 27 * @brief Supports 1..6 digits @ 8 segments and 8 LEDs.
wim 0:2c5311a4f6fa 28 * Also supports a scanned keyboard of upto 16 keys.
wim 0:2c5311a4f6fa 29 *
wim 0:2c5311a4f6fa 30 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:2c5311a4f6fa 31 * @param Mode selects 1..6 Digits of 8 Segments (default 6 Digits of 8 Segments)
wim 0:2c5311a4f6fa 32 */
wim 0:2c5311a4f6fa 33 STLED316S::STLED316S(PinName mosi, PinName miso, PinName sclk, PinName cs, Mode mode) : _spi(mosi,miso,sclk), _cs(cs), _mode(mode) {
wim 0:2c5311a4f6fa 34
wim 0:2c5311a4f6fa 35 _init();
wim 0:2c5311a4f6fa 36 }
wim 0:2c5311a4f6fa 37
wim 0:2c5311a4f6fa 38 /** Init the SPI interface and the controller
wim 0:2c5311a4f6fa 39 * @param none
wim 0:2c5311a4f6fa 40 * @return none
wim 0:2c5311a4f6fa 41 */
wim 0:2c5311a4f6fa 42 void STLED316S::_init(){
wim 0:2c5311a4f6fa 43 char config;
wim 0:2c5311a4f6fa 44
wim 0:2c5311a4f6fa 45 //init SPI
wim 0:2c5311a4f6fa 46 _cs=1;
wim 0:2c5311a4f6fa 47 _spi.format(8,3); //STLED316S uses mode 3 (Clock High on Idle, Data latched on second (=rising) edge)
wim 0:2c5311a4f6fa 48 _spi.frequency(500000);
wim 0:2c5311a4f6fa 49
wim 0:2c5311a4f6fa 50 //init controller
wim 0:2c5311a4f6fa 51 _brt_mode = GlobalBright; //STLED316S_BRT_GLOB;
wim 0:2c5311a4f6fa 52 // _brt_mode = IndivBright; //STLED316S_BRT_INDIV;
wim 0:2c5311a4f6fa 53 _bright = STLED316S_BRT_DEF;
wim 0:2c5311a4f6fa 54
wim 0:2c5311a4f6fa 55 config = ((_mode << STLED316S_CONF_GRID_SHFT) & STLED316S_CONF_GRID_MSK) |
wim 0:2c5311a4f6fa 56 ((_brt_mode << STLED316S_CONF_BRT_MODE_SHFT) & STLED316S_CONF_BRT_MODE_MSK) |
wim 0:2c5311a4f6fa 57 ((_bright << STLED316S_CONF_BRT_GLOB_SHFT) & STLED316S_CONF_BRT_GLOB_MSK);
wim 0:2c5311a4f6fa 58
wim 0:2c5311a4f6fa 59 _writeReg(STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Config set command
wim 0:2c5311a4f6fa 60 // printf("Cmd= 0x%02X, Conf= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Debug
wim 0:2c5311a4f6fa 61
wim 0:2c5311a4f6fa 62 _writeReg(STLED316S_IDX(STLED316S_DSP_PAGE,STLED316S_DSP_ON_ADDR)); // Display On command
wim 0:2c5311a4f6fa 63 }
wim 0:2c5311a4f6fa 64
wim 0:2c5311a4f6fa 65
wim 0:2c5311a4f6fa 66 /** Clear the screen and locate to 0
wim 0:2c5311a4f6fa 67 */
wim 0:2c5311a4f6fa 68 void STLED316S::cls() {
wim 0:2c5311a4f6fa 69
wim 0:2c5311a4f6fa 70 _cs=0;
wim 0:2c5311a4f6fa 71 wait_us(1);
wim 0:2c5311a4f6fa 72 _spi.write(_flip(STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG_PAGE,STLED316S_DIG2_ADDR))); // Address set cmd, 0
wim 0:2c5311a4f6fa 73
wim 0:2c5311a4f6fa 74 for (int cnt=0; cnt<STLED316S_DISPLAY_MEM; cnt++) {
wim 0:2c5311a4f6fa 75 _spi.write(0x00); // data
wim 0:2c5311a4f6fa 76 }
wim 0:2c5311a4f6fa 77
wim 0:2c5311a4f6fa 78 wait_us(1);
wim 0:2c5311a4f6fa 79 _cs=1;
wim 0:2c5311a4f6fa 80 }
wim 0:2c5311a4f6fa 81
wim 0:2c5311a4f6fa 82 /** Set Brightness for all Digits and LEDs (value is used in GlobalBright mode)
wim 0:2c5311a4f6fa 83 *
wim 0:2c5311a4f6fa 84 * @param char brightness (3 significant bits, valid range 0..7 (1/16 .. 14/14 dutycycle)
wim 0:2c5311a4f6fa 85 * @return none
wim 0:2c5311a4f6fa 86 */
wim 0:2c5311a4f6fa 87 void STLED316S::setBrightness(char brightness){
wim 0:2c5311a4f6fa 88 char config;
wim 0:2c5311a4f6fa 89
wim 0:2c5311a4f6fa 90 _bright = brightness & STLED316S_BRT_MSK; // mask invalid bits
wim 0:2c5311a4f6fa 91
wim 0:2c5311a4f6fa 92 config = ((_mode << STLED316S_CONF_GRID_SHFT) & STLED316S_CONF_GRID_MSK) |
wim 0:2c5311a4f6fa 93 ((_brt_mode << STLED316S_CONF_BRT_MODE_SHFT) & STLED316S_CONF_BRT_MODE_MSK) |
wim 0:2c5311a4f6fa 94 ((_bright << STLED316S_CONF_BRT_GLOB_SHFT) & STLED316S_CONF_BRT_GLOB_MSK);
wim 0:2c5311a4f6fa 95
wim 0:2c5311a4f6fa 96 _writeReg(STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Config set command
wim 0:2c5311a4f6fa 97 // printf("Cmd= 0x%02X, Conf= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Debug
wim 0:2c5311a4f6fa 98 }
wim 0:2c5311a4f6fa 99
wim 0:2c5311a4f6fa 100
wim 0:2c5311a4f6fa 101 /** Set Individual LED Brightness (value is used in IndivBright mode)
wim 0:2c5311a4f6fa 102 *
wim 0:2c5311a4f6fa 103 * @param LedData_t leds pattern of LED data
wim 0:2c5311a4f6fa 104 * @param char led_brt (3 significant bits, valid range 0..7 (1/16 .. 14/14 dutycycle)
wim 0:2c5311a4f6fa 105 * @return none
wim 0:2c5311a4f6fa 106 */
wim 0:2c5311a4f6fa 107 void STLED316S::setLedBrightness(LedData_t leds, char led_brt) {
wim 0:2c5311a4f6fa 108 char brt_old;
wim 0:2c5311a4f6fa 109
wim 0:2c5311a4f6fa 110 //Sanity check
wim 0:2c5311a4f6fa 111 led_brt &= STLED316S_BRT_MSK;
wim 0:2c5311a4f6fa 112
wim 0:2c5311a4f6fa 113 if (leds & STLED316S_LED_L1) { // LED_1
wim 0:2c5311a4f6fa 114 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED1_2_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 115 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED1_2_BRT_ADDR), (brt_old & 0xF0) | led_brt); // LED Brt set command
wim 0:2c5311a4f6fa 116 }
wim 0:2c5311a4f6fa 117
wim 0:2c5311a4f6fa 118 if (leds & STLED316S_LED_L2) { // LED_2
wim 0:2c5311a4f6fa 119 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED1_2_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 120 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED1_2_BRT_ADDR), (brt_old & 0x0F) | (led_brt << 4)); // LED Brt set command
wim 0:2c5311a4f6fa 121 }
wim 0:2c5311a4f6fa 122
wim 0:2c5311a4f6fa 123 if (leds & STLED316S_LED_L3) { // LED_3
wim 0:2c5311a4f6fa 124 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED3_4_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 125 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED3_4_BRT_ADDR), (brt_old & 0xF0) | led_brt); // LED Brt set command
wim 0:2c5311a4f6fa 126 }
wim 0:2c5311a4f6fa 127
wim 0:2c5311a4f6fa 128 if (leds & STLED316S_LED_L4) { // LED_4
wim 0:2c5311a4f6fa 129 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED3_4_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 130 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED3_4_BRT_ADDR), (brt_old & 0x0F) | (led_brt << 4)); // LED Brt set command
wim 0:2c5311a4f6fa 131 }
wim 0:2c5311a4f6fa 132
wim 0:2c5311a4f6fa 133 if (leds & STLED316S_LED_L5) { // LED_5
wim 0:2c5311a4f6fa 134 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED5_6_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 135 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED5_6_BRT_ADDR), (brt_old & 0xF0) | led_brt); // LED Brt set command
wim 0:2c5311a4f6fa 136 }
wim 0:2c5311a4f6fa 137
wim 0:2c5311a4f6fa 138 if (leds & STLED316S_LED_L6) { // LED_6
wim 0:2c5311a4f6fa 139 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED5_6_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 140 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED5_6_BRT_ADDR), (brt_old & 0x0F) | (led_brt << 4)); // LED Brt set command
wim 0:2c5311a4f6fa 141 }
wim 0:2c5311a4f6fa 142
wim 0:2c5311a4f6fa 143 if (leds & STLED316S_LED_L7) { // LED_7
wim 0:2c5311a4f6fa 144 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED7_8_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 145 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED7_8_BRT_ADDR), (brt_old & 0xF0) | led_brt); // LED Brt set command
wim 0:2c5311a4f6fa 146 }
wim 0:2c5311a4f6fa 147
wim 0:2c5311a4f6fa 148 if (leds & STLED316S_LED_L8) { // LED_8
wim 0:2c5311a4f6fa 149 brt_old = _readReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED7_8_BRT_ADDR)); // LED Brt read command
wim 0:2c5311a4f6fa 150 _writeReg(STLED316S_IDX(STLED316S_LED_BRT_PAGE,STLED316S_LED7_8_BRT_ADDR), (brt_old & 0x0F) | (led_brt << 4)); // LED Brt set command
wim 0:2c5311a4f6fa 151 }
wim 0:2c5311a4f6fa 152 }
wim 0:2c5311a4f6fa 153
wim 0:2c5311a4f6fa 154
wim 0:2c5311a4f6fa 155 /** Set Individual Digit Brightness (value is used in IndivBright mode)
wim 0:2c5311a4f6fa 156 *
wim 0:2c5311a4f6fa 157 * @param LedData_t digits pattern of Digit data
wim 0:2c5311a4f6fa 158 * @param char dig_brt (3 significant bits, valid range 0..7 (1/16 .. 14/14 dutycycle)
wim 0:2c5311a4f6fa 159 * @return none
wim 0:2c5311a4f6fa 160 */
wim 0:2c5311a4f6fa 161 void STLED316S::setDigitBrightness(LedData_t digits, char dig_brt) {
wim 0:2c5311a4f6fa 162 char brt_old;
wim 0:2c5311a4f6fa 163
wim 0:2c5311a4f6fa 164 //Sanity check
wim 0:2c5311a4f6fa 165 dig_brt &= STLED316S_BRT_MSK;
wim 0:2c5311a4f6fa 166
wim 0:2c5311a4f6fa 167 if (digits & STLED316S_DIG_D2) { // DIGIT_2
wim 0:2c5311a4f6fa 168 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG2_3_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 169 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG2_3_BRT_ADDR), (brt_old & 0xF0) | dig_brt); // Digit Brt set command
wim 0:2c5311a4f6fa 170 }
wim 0:2c5311a4f6fa 171
wim 0:2c5311a4f6fa 172 if (digits & STLED316S_DIG_D3) { // DIGIT_3
wim 0:2c5311a4f6fa 173 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG2_3_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 174 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG2_3_BRT_ADDR), (brt_old & 0x0F) | (dig_brt << 4)); // Digit Brt set command
wim 0:2c5311a4f6fa 175 }
wim 0:2c5311a4f6fa 176
wim 0:2c5311a4f6fa 177 if (digits & STLED316S_DIG_D4) { // DIGIT_4
wim 0:2c5311a4f6fa 178 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG4_5_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 179 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG4_5_BRT_ADDR), (brt_old & 0xF0) | dig_brt); // Digit Brt set command
wim 0:2c5311a4f6fa 180 }
wim 0:2c5311a4f6fa 181
wim 0:2c5311a4f6fa 182 if (digits & STLED316S_DIG_D5) { // DIGIT_5
wim 0:2c5311a4f6fa 183 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG4_5_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 184 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG4_5_BRT_ADDR), (brt_old & 0x0F) | (dig_brt << 4)); // Digit Brt set command
wim 0:2c5311a4f6fa 185 }
wim 0:2c5311a4f6fa 186
wim 0:2c5311a4f6fa 187 if (digits & STLED316S_DIG_D6) { // DIGIT_6
wim 0:2c5311a4f6fa 188 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG6_7_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 189 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG6_7_BRT_ADDR), (brt_old & 0xF0) | dig_brt); // Digit Brt set command
wim 0:2c5311a4f6fa 190 }
wim 0:2c5311a4f6fa 191
wim 0:2c5311a4f6fa 192 if (digits & STLED316S_DIG_D7) { // DIGIT_7
wim 0:2c5311a4f6fa 193 brt_old = _readReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG6_7_BRT_ADDR)); // Digit Brt read command
wim 0:2c5311a4f6fa 194 _writeReg(STLED316S_IDX(STLED316S_DIG_BRT_PAGE,STLED316S_DIG6_7_BRT_ADDR), (brt_old & 0x0F) | (dig_brt << 4)); // Digit Brt set command
wim 0:2c5311a4f6fa 195 }
wim 0:2c5311a4f6fa 196 }
wim 0:2c5311a4f6fa 197
wim 0:2c5311a4f6fa 198
wim 0:2c5311a4f6fa 199 /** Set the Display mode On/off
wim 0:2c5311a4f6fa 200 *
wim 0:2c5311a4f6fa 201 * @param bool display mode
wim 0:2c5311a4f6fa 202 */
wim 0:2c5311a4f6fa 203 void STLED316S::setDisplay(bool on) {
wim 0:2c5311a4f6fa 204
wim 0:2c5311a4f6fa 205 if (on) {
wim 0:2c5311a4f6fa 206 _writeReg(STLED316S_IDX(STLED316S_DSP_PAGE,STLED316S_DSP_ON_ADDR)); // Display On command
wim 0:2c5311a4f6fa 207 }
wim 0:2c5311a4f6fa 208 else {
wim 0:2c5311a4f6fa 209 _writeReg(STLED316S_IDX(STLED316S_DSP_PAGE,STLED316S_DSP_OFF_ADDR)); // Display Off command
wim 0:2c5311a4f6fa 210 }
wim 0:2c5311a4f6fa 211 }
wim 0:2c5311a4f6fa 212
wim 0:2c5311a4f6fa 213 /** Set Brightness mode
wim 0:2c5311a4f6fa 214 *
wim 0:2c5311a4f6fa 215 * @param BrightMode brt_mode (value is IndivBright or GlobalBright)
wim 0:2c5311a4f6fa 216 * @return none
wim 0:2c5311a4f6fa 217 */
wim 0:2c5311a4f6fa 218 void STLED316S::setBrightMode(BrightMode brt_mode) {
wim 0:2c5311a4f6fa 219 char config;
wim 0:2c5311a4f6fa 220
wim 0:2c5311a4f6fa 221 _brt_mode = brt_mode; // mask invalid bits
wim 0:2c5311a4f6fa 222
wim 0:2c5311a4f6fa 223 config = ((_mode << STLED316S_CONF_GRID_SHFT) & STLED316S_CONF_GRID_MSK) |
wim 0:2c5311a4f6fa 224 ((_brt_mode << STLED316S_CONF_BRT_MODE_SHFT) & STLED316S_CONF_BRT_MODE_MSK) |
wim 0:2c5311a4f6fa 225 ((_bright << STLED316S_CONF_BRT_GLOB_SHFT) & STLED316S_CONF_BRT_GLOB_MSK);
wim 0:2c5311a4f6fa 226
wim 0:2c5311a4f6fa 227 _writeReg(STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Config set command
wim 0:2c5311a4f6fa 228 // printf("Cmd= 0x%02X, Conf= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_CONF_PAGE,STLED316S_CONF_ADDR), config); // Debug
wim 0:2c5311a4f6fa 229 }
wim 0:2c5311a4f6fa 230
wim 0:2c5311a4f6fa 231
wim 0:2c5311a4f6fa 232 /** Write databyte to STLED316S
wim 0:2c5311a4f6fa 233 * @param int address display memory location to write byte
wim 0:2c5311a4f6fa 234 * @param char data byte written at given address
wim 0:2c5311a4f6fa 235 * @return none
wim 0:2c5311a4f6fa 236 */
wim 0:2c5311a4f6fa 237 void STLED316S::writeData(int address, char data) {
wim 0:2c5311a4f6fa 238 _cs=0;
wim 0:2c5311a4f6fa 239 wait_us(1);
wim 0:2c5311a4f6fa 240
wim 0:2c5311a4f6fa 241 _spi.write(_flip(STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG_PAGE, address))); // Address set cmd
wim 0:2c5311a4f6fa 242 _spi.write(_flip(data)); // data
wim 0:2c5311a4f6fa 243
wim 0:2c5311a4f6fa 244 wait_us(1);
wim 0:2c5311a4f6fa 245 _cs=1;
wim 0:2c5311a4f6fa 246 }
wim 0:2c5311a4f6fa 247
wim 0:2c5311a4f6fa 248 /** Write Display datablock to STLED316S
wim 0:2c5311a4f6fa 249 * @param DisplayData_t data Array of STLED316S_DISPLAY_MEM (=6) bytes for displaydata (starting at address 0)
wim 0:2c5311a4f6fa 250 * @param length number bytes to write (valide range 0..STLED316S_DISPLAY_MEM (=6), starting at address 0)
wim 0:2c5311a4f6fa 251 * @return none
wim 0:2c5311a4f6fa 252 */
wim 0:2c5311a4f6fa 253 void STLED316S::writeData(DisplayData_t data, int length) {
wim 0:2c5311a4f6fa 254 _cs=0;
wim 0:2c5311a4f6fa 255 wait_us(1);
wim 0:2c5311a4f6fa 256
wim 0:2c5311a4f6fa 257 _spi.write(_flip(STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG_PAGE, 0x00))); // Set Address at 0
wim 0:2c5311a4f6fa 258
wim 0:2c5311a4f6fa 259 // printf("Cmd= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG_PAGE, 0x00)); // Debug
wim 0:2c5311a4f6fa 260
wim 0:2c5311a4f6fa 261 // sanity check
wim 0:2c5311a4f6fa 262 if (length < 0) {length = 0;}
wim 0:2c5311a4f6fa 263 if (length > STLED316S_DISPLAY_MEM) {length = STLED316S_DISPLAY_MEM;}
wim 0:2c5311a4f6fa 264
wim 0:2c5311a4f6fa 265 // for (int idx=0; idx<STLED316S_DISPLAY_MEM; idx++) {
wim 0:2c5311a4f6fa 266 for (int idx=0; idx<length; idx++) {
wim 0:2c5311a4f6fa 267 _spi.write(_flip(data[idx])); // data
wim 0:2c5311a4f6fa 268
wim 0:2c5311a4f6fa 269 // printf("Data= 0x%02X\r\n", data[idx]); // Debug
wim 0:2c5311a4f6fa 270 }
wim 0:2c5311a4f6fa 271
wim 0:2c5311a4f6fa 272 wait_us(1);
wim 0:2c5311a4f6fa 273 _cs=1;
wim 0:2c5311a4f6fa 274 }
wim 0:2c5311a4f6fa 275
wim 0:2c5311a4f6fa 276
wim 0:2c5311a4f6fa 277 /** Write LED data to STLED316S
wim 0:2c5311a4f6fa 278 * @param LedData_t leds LED data
wim 0:2c5311a4f6fa 279 * @return none
wim 0:2c5311a4f6fa 280 */
wim 0:2c5311a4f6fa 281 void STLED316S::writeLedData(LedData_t leds) {
wim 0:2c5311a4f6fa 282 _cs=0;
wim 0:2c5311a4f6fa 283 wait_us(1);
wim 0:2c5311a4f6fa 284
wim 0:2c5311a4f6fa 285 _leds = leds;
wim 0:2c5311a4f6fa 286
wim 0:2c5311a4f6fa 287 _spi.write(_flip(STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG1_LED_PAGE, STLED316S_DIG1_LED_ADDR))); // Set Address
wim 0:2c5311a4f6fa 288 // printf("Cmd= 0x%02Xr\n", STLED316S_ADDR_WR_CMD | STLED316S_IDX(STLED316S_DIG1_LED_PAGE, STLED316S_DIG1_LED_ADDR)); // Debug
wim 0:2c5311a4f6fa 289
wim 0:2c5311a4f6fa 290 _spi.write(_flip(leds)); // data
wim 0:2c5311a4f6fa 291 // printf("Data 0x%02X\r\n", leds); // Debug
wim 0:2c5311a4f6fa 292
wim 0:2c5311a4f6fa 293 wait_us(1);
wim 0:2c5311a4f6fa 294 _cs=1;
wim 0:2c5311a4f6fa 295 }
wim 0:2c5311a4f6fa 296
wim 0:2c5311a4f6fa 297
wim 0:2c5311a4f6fa 298 /** Set LED
wim 0:2c5311a4f6fa 299 *
wim 0:2c5311a4f6fa 300 * @param LedData_t leds pattern of LED data
wim 0:2c5311a4f6fa 301 * @return none
wim 0:2c5311a4f6fa 302 */
wim 0:2c5311a4f6fa 303 void STLED316S::setLed(LedData_t leds){
wim 0:2c5311a4f6fa 304
wim 0:2c5311a4f6fa 305 _leds |= leds;
wim 0:2c5311a4f6fa 306 writeLedData(_leds);
wim 0:2c5311a4f6fa 307 }
wim 0:2c5311a4f6fa 308
wim 0:2c5311a4f6fa 309 /** Clr LED
wim 0:2c5311a4f6fa 310 *
wim 0:2c5311a4f6fa 311 * @param LedData_t leds pattern of LED data
wim 0:2c5311a4f6fa 312 * @return none
wim 0:2c5311a4f6fa 313 */
wim 0:2c5311a4f6fa 314 void STLED316S::clrLed(LedData_t leds){
wim 0:2c5311a4f6fa 315 _leds &= ~leds;
wim 0:2c5311a4f6fa 316 writeLedData(_leds);
wim 0:2c5311a4f6fa 317 }
wim 0:2c5311a4f6fa 318
wim 0:2c5311a4f6fa 319 /** Read keydata block from STLED316S
wim 0:2c5311a4f6fa 320 * @param *keydata Ptr to Array of STLED316S_KEY_MEM (=5) bytes for keydata
wim 0:2c5311a4f6fa 321 * @return bool keypress True when at least one key was pressed
wim 0:2c5311a4f6fa 322 *
wim 0:2c5311a4f6fa 323 * Note: Due to the hardware configuration the STLED316S key matrix scanner will detect multiple keys pressed at same time,
wim 0:2c5311a4f6fa 324 * but this may also result in some spurious keys being set in keypress data array.
wim 0:2c5311a4f6fa 325 * It may be best to ignore all keys in those situations. That option is implemented in this method depending on #define setting.
wim 0:2c5311a4f6fa 326 */
wim 0:2c5311a4f6fa 327 bool STLED316S::getKeys(KeyData_t *keydata) {
wim 0:2c5311a4f6fa 328 int keypress = 0;
wim 0:2c5311a4f6fa 329 char data;
wim 0:2c5311a4f6fa 330
wim 0:2c5311a4f6fa 331 // Read keys
wim 0:2c5311a4f6fa 332 _cs=0;
wim 0:2c5311a4f6fa 333 wait_us(1);
wim 0:2c5311a4f6fa 334
wim 0:2c5311a4f6fa 335 // Enable Key Read mode
wim 0:2c5311a4f6fa 336 _spi.write(_flip(STLED316S_ADDR_RD_CMD | STLED316S_IDX(STLED316S_KEY_PAGE, STLED316S_KEY1_ADDR))); // Set Address
wim 0:2c5311a4f6fa 337 // printf("Cmd= 0x%02Xr\n", STLED316S_ADDR_RD_CMD | STLED316S_IDX(STLED316S_KEY_PAGE, STLED316S_KEY1_ADDR)); // Debug
wim 0:2c5311a4f6fa 338
wim 0:2c5311a4f6fa 339 for (int idx=0; idx < STLED316S_KEY_MEM; idx++) {
wim 0:2c5311a4f6fa 340 data = _flip(_spi.write(0xFF)); // read keys and correct bitorder
wim 0:2c5311a4f6fa 341 // printf("KeyData 0x%02X\r\n", data); // Debug
wim 0:2c5311a4f6fa 342
wim 0:2c5311a4f6fa 343 data = data & STLED316S_KEY_MSK; // Mask valid bits
wim 0:2c5311a4f6fa 344 if (data != 0) { // Check for any pressed key
wim 0:2c5311a4f6fa 345 for (int bit=0; bit < 8; bit++) {
wim 0:2c5311a4f6fa 346 if (data & (1 << bit)) {keypress++;} // Test all significant bits
wim 0:2c5311a4f6fa 347 }
wim 0:2c5311a4f6fa 348 }
wim 0:2c5311a4f6fa 349
wim 0:2c5311a4f6fa 350 (*keydata)[idx] = data; // Store keydata after correcting bitorder
wim 0:2c5311a4f6fa 351 }
wim 0:2c5311a4f6fa 352
wim 0:2c5311a4f6fa 353 wait_us(1);
wim 0:2c5311a4f6fa 354 _cs=1;
wim 0:2c5311a4f6fa 355
wim 0:2c5311a4f6fa 356 #if(1)
wim 0:2c5311a4f6fa 357 // Dismiss multiple keypresses at same time
wim 0:2c5311a4f6fa 358 return (keypress == 1);
wim 0:2c5311a4f6fa 359 #else
wim 0:2c5311a4f6fa 360 // Allow multiple keypress and accept possible spurious keys
wim 0:2c5311a4f6fa 361 return (keypress > 0);
wim 0:2c5311a4f6fa 362 #endif
wim 0:2c5311a4f6fa 363 }
wim 0:2c5311a4f6fa 364
wim 0:2c5311a4f6fa 365
wim 0:2c5311a4f6fa 366 /** Helper to reverse all command or databits. The STLED316S expects LSB first, whereas SPI is MSB first
wim 0:2c5311a4f6fa 367 * @param char data
wim 0:2c5311a4f6fa 368 * @return bitreversed data
wim 0:2c5311a4f6fa 369 */
wim 0:2c5311a4f6fa 370 char STLED316S::_flip(char data) {
wim 0:2c5311a4f6fa 371 char value=0;
wim 0:2c5311a4f6fa 372
wim 0:2c5311a4f6fa 373 if (data & 0x01) {value |= 0x80;} ;
wim 0:2c5311a4f6fa 374 if (data & 0x02) {value |= 0x40;} ;
wim 0:2c5311a4f6fa 375 if (data & 0x04) {value |= 0x20;} ;
wim 0:2c5311a4f6fa 376 if (data & 0x08) {value |= 0x10;} ;
wim 0:2c5311a4f6fa 377 if (data & 0x10) {value |= 0x08;} ;
wim 0:2c5311a4f6fa 378 if (data & 0x20) {value |= 0x04;} ;
wim 0:2c5311a4f6fa 379 if (data & 0x40) {value |= 0x02;} ;
wim 0:2c5311a4f6fa 380 if (data & 0x80) {value |= 0x01;} ;
wim 0:2c5311a4f6fa 381 return value;
wim 0:2c5311a4f6fa 382 }
wim 0:2c5311a4f6fa 383
wim 0:2c5311a4f6fa 384
wim 0:2c5311a4f6fa 385 /** Write parameter to STLED316S Register
wim 0:2c5311a4f6fa 386 * @param int idx Register address
wim 0:2c5311a4f6fa 387 * @Param int data Parameter for Register
wim 0:2c5311a4f6fa 388 * @return none
wim 0:2c5311a4f6fa 389 */
wim 0:2c5311a4f6fa 390 void STLED316S::_writeReg(int idx, int data){
wim 0:2c5311a4f6fa 391
wim 0:2c5311a4f6fa 392 _cs=0;
wim 0:2c5311a4f6fa 393 wait_us(1);
wim 0:2c5311a4f6fa 394
wim 0:2c5311a4f6fa 395 _spi.write(_flip(STLED316S_ADDR_WR_CMD | (idx & STLED316S_IDX_MSK)));
wim 0:2c5311a4f6fa 396 _spi.write(_flip(data) );
wim 0:2c5311a4f6fa 397
wim 0:2c5311a4f6fa 398 // printf("Cmd= 0x%02X, Write= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | (idx & STLED316S_IDX_MSK), data); // Debug
wim 0:2c5311a4f6fa 399
wim 0:2c5311a4f6fa 400 wait_us(1);
wim 0:2c5311a4f6fa 401 _cs=1;
wim 0:2c5311a4f6fa 402 }
wim 0:2c5311a4f6fa 403
wim 0:2c5311a4f6fa 404
wim 0:2c5311a4f6fa 405 /** Write merged command and parameter to STLED316S
wim 0:2c5311a4f6fa 406 * @param int cmd Command & Parameter byte
wim 0:2c5311a4f6fa 407 * @return none
wim 0:2c5311a4f6fa 408 */
wim 0:2c5311a4f6fa 409 void STLED316S::_writeReg(int cmd){
wim 0:2c5311a4f6fa 410
wim 0:2c5311a4f6fa 411 _cs=0;
wim 0:2c5311a4f6fa 412 wait_us(1);
wim 0:2c5311a4f6fa 413 _spi.write(_flip(STLED316S_ADDR_WR_CMD | (cmd & STLED316S_IDX_MSK)));
wim 0:2c5311a4f6fa 414
wim 0:2c5311a4f6fa 415 // printf("Cmd= 0x%02X\r\n", STLED316S_ADDR_WR_CMD | (cmd & STLED316S_IDX_MSK)); // Debug
wim 0:2c5311a4f6fa 416
wim 0:2c5311a4f6fa 417 wait_us(1);
wim 0:2c5311a4f6fa 418 _cs=1;
wim 0:2c5311a4f6fa 419 }
wim 0:2c5311a4f6fa 420
wim 0:2c5311a4f6fa 421
wim 0:2c5311a4f6fa 422 /** Read parameter from STLED316S Register
wim 0:2c5311a4f6fa 423 * @param int idx Register address
wim 0:2c5311a4f6fa 424 * @return char data from Register
wim 0:2c5311a4f6fa 425 */
wim 0:2c5311a4f6fa 426 char STLED316S::_readReg(int idx){
wim 0:2c5311a4f6fa 427 char data;
wim 0:2c5311a4f6fa 428
wim 0:2c5311a4f6fa 429 _cs=0;
wim 0:2c5311a4f6fa 430 wait_us(1);
wim 0:2c5311a4f6fa 431 _spi.write(_flip(STLED316S_ADDR_RD_CMD | (idx & STLED316S_IDX_MSK)));
wim 0:2c5311a4f6fa 432
wim 0:2c5311a4f6fa 433 data = _flip(_spi.write(0xFF)); // read data and correct bitorder
wim 0:2c5311a4f6fa 434
wim 0:2c5311a4f6fa 435 // printf("Cmd= 0x%02X, Read= 0x%02X\r\n", STLED316S_ADDR_RD_CMD | (idx & STLED316S_IDX_MSK), data); // Debug
wim 0:2c5311a4f6fa 436
wim 0:2c5311a4f6fa 437 wait_us(1);
wim 0:2c5311a4f6fa 438 _cs=1;
wim 0:2c5311a4f6fa 439
wim 0:2c5311a4f6fa 440 return data;
wim 0:2c5311a4f6fa 441 }
wim 0:2c5311a4f6fa 442
wim 0:2c5311a4f6fa 443
wim 0:2c5311a4f6fa 444
wim 0:2c5311a4f6fa 445 #if(ST316BOARD_TEST == 1)
wim 0:2c5311a4f6fa 446 // Derived class for STLED316S used in test display module
wim 0:2c5311a4f6fa 447 //
wim 0:2c5311a4f6fa 448 //#include "Font_7Seg.h"
wim 0:2c5311a4f6fa 449
wim 0:2c5311a4f6fa 450 /** Constructor for class for driving STM STLED316S controller as used in ST316S test display
wim 0:2c5311a4f6fa 451 *
wim 0:2c5311a4f6fa 452 * @brief Supports 6 Digits of 7 Segments and 3 LEDs. Also supports a scanned keyboard of 3.
wim 0:2c5311a4f6fa 453 *
wim 0:2c5311a4f6fa 454 * @param PinName mosi, miso, sclk, cs SPI bus pins
wim 0:2c5311a4f6fa 455 */
wim 0:2c5311a4f6fa 456 STLED316S_BOARD::STLED316S_BOARD(PinName mosi, PinName miso, PinName sclk, PinName cs) : STLED316S(mosi, miso, sclk, cs, Grid6_Seg8) {
wim 0:2c5311a4f6fa 457 _column = 0;
wim 0:2c5311a4f6fa 458 _columns = ST316BOARD_NR_DIGITS;
wim 0:2c5311a4f6fa 459 }
wim 0:2c5311a4f6fa 460
wim 0:2c5311a4f6fa 461 #if(0)
wim 0:2c5311a4f6fa 462 #if DOXYGEN_ONLY
wim 0:2c5311a4f6fa 463 /** Write a character to the Display
wim 0:2c5311a4f6fa 464 *
wim 0:2c5311a4f6fa 465 * @param c The character to write to the display
wim 0:2c5311a4f6fa 466 */
wim 0:2c5311a4f6fa 467 int putc(int c);
wim 0:2c5311a4f6fa 468
wim 0:2c5311a4f6fa 469 /** Write a formatted string to the Display
wim 0:2c5311a4f6fa 470 *
wim 0:2c5311a4f6fa 471 * @param format A printf-style format string, followed by the
wim 0:2c5311a4f6fa 472 * variables to use in formatting the string.
wim 0:2c5311a4f6fa 473 */
wim 0:2c5311a4f6fa 474 int printf(const char* format, ...);
wim 0:2c5311a4f6fa 475 #endif
wim 0:2c5311a4f6fa 476 #endif
wim 0:2c5311a4f6fa 477
wim 0:2c5311a4f6fa 478 /** Locate cursor to a screen column
wim 0:2c5311a4f6fa 479 *
wim 0:2c5311a4f6fa 480 * @param column The horizontal position from the left, indexed from 0
wim 0:2c5311a4f6fa 481 */
wim 0:2c5311a4f6fa 482 void STLED316S_BOARD::locate(int column) {
wim 0:2c5311a4f6fa 483 //sanity check
wim 0:2c5311a4f6fa 484 if (column < 0) {column = 0;}
wim 0:2c5311a4f6fa 485 if (column > (_columns - 1)) {column = _columns - 1;}
wim 0:2c5311a4f6fa 486
wim 0:2c5311a4f6fa 487 _column = column;
wim 0:2c5311a4f6fa 488 }
wim 0:2c5311a4f6fa 489
wim 0:2c5311a4f6fa 490
wim 0:2c5311a4f6fa 491 /** Number of screen columns
wim 0:2c5311a4f6fa 492 *
wim 0:2c5311a4f6fa 493 * @param none
wim 0:2c5311a4f6fa 494 * @return columns
wim 0:2c5311a4f6fa 495 */
wim 0:2c5311a4f6fa 496 int STLED316S_BOARD::columns() {
wim 0:2c5311a4f6fa 497 return _columns;
wim 0:2c5311a4f6fa 498 }
wim 0:2c5311a4f6fa 499
wim 0:2c5311a4f6fa 500
wim 0:2c5311a4f6fa 501 /** Clear the screen and locate to 0
wim 0:2c5311a4f6fa 502 * @param bool clrAll Clear Icons also (default = false)
wim 0:2c5311a4f6fa 503 */
wim 0:2c5311a4f6fa 504 void STLED316S_BOARD::cls(bool clrAll) {
wim 0:2c5311a4f6fa 505
wim 0:2c5311a4f6fa 506 if (clrAll) {
wim 0:2c5311a4f6fa 507 //clear local buffer for LEDs/Icons
wim 0:2c5311a4f6fa 508 setLed(0x00);
wim 0:2c5311a4f6fa 509 }
wim 0:2c5311a4f6fa 510
wim 0:2c5311a4f6fa 511 //clear local buffer for digits
wim 0:2c5311a4f6fa 512 for (int idx=0; idx < (ST316BOARD_NR_GRIDS * STLED316S_BYTES_PER_GRID); idx++) {
wim 0:2c5311a4f6fa 513 _displaybuffer[idx] = 0x00;
wim 0:2c5311a4f6fa 514 }
wim 0:2c5311a4f6fa 515 writeData(_displaybuffer, (ST316BOARD_NR_GRIDS * STLED316S_BYTES_PER_GRID));
wim 0:2c5311a4f6fa 516
wim 0:2c5311a4f6fa 517 _column = 0;
wim 0:2c5311a4f6fa 518 }
wim 0:2c5311a4f6fa 519
wim 0:2c5311a4f6fa 520
wim 0:2c5311a4f6fa 521 /** Set Icon
wim 0:2c5311a4f6fa 522 *
wim 0:2c5311a4f6fa 523 * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 16 LSBs
wim 0:2c5311a4f6fa 524 * @return none
wim 0:2c5311a4f6fa 525 */
wim 0:2c5311a4f6fa 526 void STLED316S_BOARD::setIcon(Icon icon) {
wim 0:2c5311a4f6fa 527 // int addr;
wim 0:2c5311a4f6fa 528 int icn;
wim 0:2c5311a4f6fa 529
wim 0:2c5311a4f6fa 530 icn = icon & 0xFF;
wim 0:2c5311a4f6fa 531 // addr = (icon >> 24) & 0xFF;
wim 0:2c5311a4f6fa 532
wim 0:2c5311a4f6fa 533 setLed(icn);
wim 0:2c5311a4f6fa 534 }
wim 0:2c5311a4f6fa 535
wim 0:2c5311a4f6fa 536 /** Clr Icon
wim 0:2c5311a4f6fa 537 *
wim 0:2c5311a4f6fa 538 * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 16 LSBs
wim 0:2c5311a4f6fa 539 * @return none
wim 0:2c5311a4f6fa 540 */
wim 0:2c5311a4f6fa 541 void STLED316S_BOARD::clrIcon(Icon icon) {
wim 0:2c5311a4f6fa 542 // int addr;
wim 0:2c5311a4f6fa 543 int icn;
wim 0:2c5311a4f6fa 544
wim 0:2c5311a4f6fa 545 icn = icon & 0xFF;
wim 0:2c5311a4f6fa 546 // addr = (icon >> 24) & 0xFF;
wim 0:2c5311a4f6fa 547
wim 0:2c5311a4f6fa 548 clrLed(icn);
wim 0:2c5311a4f6fa 549 }
wim 0:2c5311a4f6fa 550
wim 0:2c5311a4f6fa 551
wim 0:2c5311a4f6fa 552 /** Set User Defined Characters (UDC)
wim 0:2c5311a4f6fa 553 *
wim 0:2c5311a4f6fa 554 * @param unsigned char udc_idx The Index of the UDC (0..7)
wim 0:2c5311a4f6fa 555 * @param int udc_data The bitpattern for the UDC (16 bits)
wim 0:2c5311a4f6fa 556 */
wim 0:2c5311a4f6fa 557 void STLED316S_BOARD::setUDC(unsigned char udc_idx, int udc_data) {
wim 0:2c5311a4f6fa 558
wim 0:2c5311a4f6fa 559 //Sanity check
wim 0:2c5311a4f6fa 560 if (udc_idx > (ST316BOARD_NR_UDC-1)) {
wim 0:2c5311a4f6fa 561 return;
wim 0:2c5311a4f6fa 562 }
wim 0:2c5311a4f6fa 563 // Mask out Icon bits?
wim 0:2c5311a4f6fa 564
wim 0:2c5311a4f6fa 565 _UDC_7S[udc_idx] = udc_data;
wim 0:2c5311a4f6fa 566 }
wim 0:2c5311a4f6fa 567
wim 0:2c5311a4f6fa 568
wim 0:2c5311a4f6fa 569 /** Write a single character (Stream implementation)
wim 0:2c5311a4f6fa 570 */
wim 0:2c5311a4f6fa 571 int STLED316S_BOARD::_putc(int value) {
wim 0:2c5311a4f6fa 572
wim 0:2c5311a4f6fa 573 int addr;
wim 0:2c5311a4f6fa 574 bool validChar = false;
wim 0:2c5311a4f6fa 575 char pattern = 0x00;
wim 0:2c5311a4f6fa 576
wim 0:2c5311a4f6fa 577 if ((value == '\n') || (value == '\r')) {
wim 0:2c5311a4f6fa 578 //No character to write
wim 0:2c5311a4f6fa 579 validChar = false;
wim 0:2c5311a4f6fa 580
wim 0:2c5311a4f6fa 581 //Update Cursor
wim 0:2c5311a4f6fa 582 _column = 0;
wim 0:2c5311a4f6fa 583 }
wim 0:2c5311a4f6fa 584 else if ((value == '.') || (value == ',')) {
wim 0:2c5311a4f6fa 585 //No character to write
wim 0:2c5311a4f6fa 586 validChar = false;
wim 0:2c5311a4f6fa 587 pattern = S7_DP; // placeholder for all DPs
wim 0:2c5311a4f6fa 588
wim 0:2c5311a4f6fa 589 // Check to see that DP can be shown for current column
wim 0:2c5311a4f6fa 590 if (_column > 0) {
wim 0:2c5311a4f6fa 591 //Translate between _column and displaybuffer entries
wim 0:2c5311a4f6fa 592 //Add DP to bitpattern of digit left of current column.
wim 0:2c5311a4f6fa 593 addr = (_column - 1);
wim 0:2c5311a4f6fa 594
wim 0:2c5311a4f6fa 595 //Set bits for decimal point to write
wim 0:2c5311a4f6fa 596 _displaybuffer[addr] = _displaybuffer[addr] | pattern;
wim 0:2c5311a4f6fa 597 writeData(_displaybuffer, (ST316BOARD_NR_GRIDS * STLED316S_BYTES_PER_GRID));
wim 0:2c5311a4f6fa 598
wim 0:2c5311a4f6fa 599 //No Cursor Update
wim 0:2c5311a4f6fa 600 }
wim 0:2c5311a4f6fa 601 }
wim 0:2c5311a4f6fa 602 else if ((value >= 0) && (value < ST316BOARD_NR_UDC)) {
wim 0:2c5311a4f6fa 603 //Character to write
wim 0:2c5311a4f6fa 604 validChar = true;
wim 0:2c5311a4f6fa 605 pattern = _UDC_7S[value];
wim 0:2c5311a4f6fa 606 }
wim 0:2c5311a4f6fa 607
wim 0:2c5311a4f6fa 608 #if (SHOW_ASCII == 1)
wim 0:2c5311a4f6fa 609 //display all ASCII characters
wim 0:2c5311a4f6fa 610 else if ((value >= FONT_7S_START) && (value <= FONT_7S_END)) {
wim 0:2c5311a4f6fa 611 //Character to write
wim 0:2c5311a4f6fa 612 validChar = true;
wim 0:2c5311a4f6fa 613 pattern = FONT_7S[value - FONT_7S_START];
wim 0:2c5311a4f6fa 614 } // else
wim 0:2c5311a4f6fa 615 #else
wim 0:2c5311a4f6fa 616 //display only digits and hex characters
wim 0:2c5311a4f6fa 617 else if (value == '-') {
wim 0:2c5311a4f6fa 618 //Character to write
wim 0:2c5311a4f6fa 619 validChar = true;
wim 0:2c5311a4f6fa 620 pattern = C7_MIN;
wim 0:2c5311a4f6fa 621 }
wim 0:2c5311a4f6fa 622 else if ((value >= (int)'0') && (value <= (int) '9')) {
wim 0:2c5311a4f6fa 623 //Character to write
wim 0:2c5311a4f6fa 624 validChar = true;
wim 0:2c5311a4f6fa 625 pattern = FONT_7S[value - (int) '0'];
wim 0:2c5311a4f6fa 626 }
wim 0:2c5311a4f6fa 627 else if ((value >= (int) 'A') && (value <= (int) 'F')) {
wim 0:2c5311a4f6fa 628 //Character to write
wim 0:2c5311a4f6fa 629 validChar = true;
wim 0:2c5311a4f6fa 630 pattern = FONT_7S[10 + value - (int) 'A'];
wim 0:2c5311a4f6fa 631 }
wim 0:2c5311a4f6fa 632 else if ((value >= (int) 'a') && (value <= (int) 'f')) {
wim 0:2c5311a4f6fa 633 //Character to write
wim 0:2c5311a4f6fa 634 validChar = true;
wim 0:2c5311a4f6fa 635 pattern = FONT_7S[10 + value - (int) 'a'];
wim 0:2c5311a4f6fa 636 } //else
wim 0:2c5311a4f6fa 637 #endif
wim 0:2c5311a4f6fa 638
wim 0:2c5311a4f6fa 639 if (validChar) {
wim 0:2c5311a4f6fa 640 //Character to write
wim 0:2c5311a4f6fa 641
wim 0:2c5311a4f6fa 642 //Translate between _column and displaybuffer entries
wim 0:2c5311a4f6fa 643 //_column == 0 => Grid0 => addr = 0
wim 0:2c5311a4f6fa 644 //
wim 0:2c5311a4f6fa 645 //_column == 5 => Grid5 => addr = 5
wim 0:2c5311a4f6fa 646 addr = _column;
wim 0:2c5311a4f6fa 647 _displaybuffer[addr] = pattern;
wim 0:2c5311a4f6fa 648
wim 0:2c5311a4f6fa 649 writeData(_displaybuffer, (ST316BOARD_NR_GRIDS * STLED316S_BYTES_PER_GRID));
wim 0:2c5311a4f6fa 650
wim 0:2c5311a4f6fa 651 //Update Cursor
wim 0:2c5311a4f6fa 652 _column++;
wim 0:2c5311a4f6fa 653 if (_column > (ST316BOARD_NR_DIGITS - 1)) {
wim 0:2c5311a4f6fa 654 _column = 0;
wim 0:2c5311a4f6fa 655 }
wim 0:2c5311a4f6fa 656
wim 0:2c5311a4f6fa 657 } // if validChar
wim 0:2c5311a4f6fa 658
wim 0:2c5311a4f6fa 659 return value;
wim 0:2c5311a4f6fa 660 }
wim 0:2c5311a4f6fa 661
wim 0:2c5311a4f6fa 662 // get a single character (Stream implementation)
wim 0:2c5311a4f6fa 663 int STLED316S_BOARD::_getc() {
wim 0:2c5311a4f6fa 664 return -1;
wim 0:2c5311a4f6fa 665 }
wim 0:2c5311a4f6fa 666 #endif