Hiroh Satoh / keyboard Featured

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Dependencies:   BLE_API mbed-dev nRF51822

main.cpp@35:6a7fddfa14cf, 2016-08-25 (annotated)

Committer:
cho45
Date:
Thu Aug 25 15:24:19 2016 +0000
Revision:
35:6a7fddfa14cf
Parent:
34:7da766a8aa96
Child:
36:78c211da4eb0
Ticker ??????????????? static ??????????????????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cho45 0:be89b5fdea09 1 /* mbed Microcontroller Library
cho45 0:be89b5fdea09 2 * Copyright (c) 2015 ARM Limited
cho45 0:be89b5fdea09 3 *
cho45 0:be89b5fdea09 4 * Licensed under the Apache License, Version 2.0 (the "License");
cho45 0:be89b5fdea09 5 * you may not use this file except in compliance with the License.
cho45 0:be89b5fdea09 6 * You may obtain a copy of the License at
cho45 0:be89b5fdea09 7 *
cho45 0:be89b5fdea09 8 * http://www.apache.org/licenses/LICENSE-2.0
cho45 0:be89b5fdea09 9 *
cho45 0:be89b5fdea09 10 * Unless required by applicable law or agreed to in writing, software
cho45 0:be89b5fdea09 11 * distributed under the License is distributed on an "AS IS" BASIS,
cho45 0:be89b5fdea09 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
cho45 0:be89b5fdea09 13 * See the License for the specific language governing permissions and
cho45 0:be89b5fdea09 14 * limitations under the License.
cho45 0:be89b5fdea09 15 */
cho45 0:be89b5fdea09 16
cho45 30:f9ebc769118d 17 #include <cmath>
cho45 0:be89b5fdea09 18 #include "mbed.h"
cho45 6:f1c3ea8bc850 19
cho45 6:f1c3ea8bc850 20 #include "HIDController_BLE.h"
cho45 6:f1c3ea8bc850 21
cho45 4:54cb552e50c4 22 #include "mcp23017.h"
cho45 5:65d4e94735b6 23 #include "keymap.h"
cho45 0:be89b5fdea09 24
cho45 0:be89b5fdea09 25
cho45 5:65d4e94735b6 26 class KeyboardMatrixController {
cho45 5:65d4e94735b6 27 I2C& i2c;
cho45 5:65d4e94735b6 28 MCP23017 gpio1;
cho45 5:65d4e94735b6 29 MCP23017 gpio2;
cho45 13:b0ffdf2012b9 30 bool gpio1_ready;
cho45 13:b0ffdf2012b9 31 bool gpio2_ready;
cho45 5:65d4e94735b6 32
cho45 5:65d4e94735b6 33 static const uint8_t GPIO1_SLAVE_ADDRESS = 0b0100000;
cho45 14:3a8c126b7834 34 static const uint8_t GPIO2_SLAVE_ADDRESS = 0b0100100;
cho45 5:65d4e94735b6 35
cho45 5:65d4e94735b6 36 /**
cho45 5:65d4e94735b6 37 * COL=GPIOA (output normaly positive)
cho45 5:65d4e94735b6 38 * ROW=GPIOB (input pulled-up)
cho45 5:65d4e94735b6 39 */
cho45 5:65d4e94735b6 40
cho45 13:b0ffdf2012b9 41 bool setupGpio(MCP23017& gpio) {
cho45 5:65d4e94735b6 42 int ok;
cho45 13:b0ffdf2012b9 43 printf("SET IOCON\r\n");
cho45 5:65d4e94735b6 44 ok = gpio.write8(
cho45 5:65d4e94735b6 45 MCP23017::IOCON,
cho45 5:65d4e94735b6 46 0<<MCP23017::BANK |
cho45 5:65d4e94735b6 47 1<<MCP23017::MIRROR |
cho45 5:65d4e94735b6 48 1<<MCP23017::SEQOP |
cho45 5:65d4e94735b6 49 0<<MCP23017::DISSLW |
cho45 5:65d4e94735b6 50 1<<MCP23017::ODR // int pin is open drain
cho45 5:65d4e94735b6 51 );
cho45 13:b0ffdf2012b9 52 if (!ok) return false;
cho45 5:65d4e94735b6 53
cho45 5:65d4e94735b6 54 // IODIR
cho45 5:65d4e94735b6 55 // 1: input
cho45 5:65d4e94735b6 56 // 0: output
cho45 13:b0ffdf2012b9 57 printf("SET IODIRA\r\n");
cho45 5:65d4e94735b6 58 ok = gpio.write16(
cho45 5:65d4e94735b6 59 MCP23017::IODIRA,
cho45 5:65d4e94735b6 60 0b0000000011111111
cho45 5:65d4e94735b6 61 );
cho45 13:b0ffdf2012b9 62 if (!ok) return false;
cho45 4:54cb552e50c4 63
cho45 5:65d4e94735b6 64 // INPUT POLARITY
cho45 5:65d4e94735b6 65 // 1: inverse polarity
cho45 5:65d4e94735b6 66 // 0: raw
cho45 13:b0ffdf2012b9 67 printf("SET IPOLB\r\n");
cho45 5:65d4e94735b6 68 ok = gpio.write8(
cho45 5:65d4e94735b6 69 MCP23017::IPOLB,
cho45 5:65d4e94735b6 70 0b11111111
cho45 5:65d4e94735b6 71 );
cho45 13:b0ffdf2012b9 72 if (!ok) return false;
cho45 5:65d4e94735b6 73
cho45 5:65d4e94735b6 74 // INTERRUPT-ON-CHANGE Enable
cho45 13:b0ffdf2012b9 75 printf("SET GPINTENB\r\n");
cho45 5:65d4e94735b6 76 ok = gpio.write8(
cho45 5:65d4e94735b6 77 MCP23017::GPINTENB,
cho45 5:65d4e94735b6 78 0b11111111
cho45 5:65d4e94735b6 79 );
cho45 13:b0ffdf2012b9 80 if (!ok) return false;
cho45 13:b0ffdf2012b9 81
cho45 5:65d4e94735b6 82 // INTERRUPT-ON-CHANGE Control
cho45 5:65d4e94735b6 83 // 1: compared with DEFVAL
cho45 5:65d4e94735b6 84 // 0: compared to previous value
cho45 13:b0ffdf2012b9 85 printf("SET INTCONB\r\n");
cho45 5:65d4e94735b6 86 ok = gpio.write8(
cho45 5:65d4e94735b6 87 MCP23017::INTCONB,
cho45 5:65d4e94735b6 88 0b00000000
cho45 5:65d4e94735b6 89 );
cho45 13:b0ffdf2012b9 90 if (!ok) return false;
cho45 13:b0ffdf2012b9 91
cho45 5:65d4e94735b6 92 // PULL-UP (for input pin)
cho45 5:65d4e94735b6 93 // 1: pull-up enabled
cho45 5:65d4e94735b6 94 // 0: pull-up disabled
cho45 13:b0ffdf2012b9 95 printf("SET GPPUB\r\n");
cho45 5:65d4e94735b6 96 ok = gpio.write8(
cho45 5:65d4e94735b6 97 MCP23017::GPPUB,
cho45 5:65d4e94735b6 98 0b11111111
cho45 5:65d4e94735b6 99 );
cho45 13:b0ffdf2012b9 100 if (!ok) return false;
cho45 5:65d4e94735b6 101
cho45 13:b0ffdf2012b9 102 printf("SET GPIOA\r\n");
cho45 5:65d4e94735b6 103 ok = gpio1.write8(
cho45 5:65d4e94735b6 104 MCP23017::GPIOA,
cho45 5:65d4e94735b6 105 0b00000000
cho45 5:65d4e94735b6 106 );
cho45 13:b0ffdf2012b9 107 if (!ok) return false;
cho45 5:65d4e94735b6 108
cho45 13:b0ffdf2012b9 109 return true;
cho45 5:65d4e94735b6 110 }
cho45 5:65d4e94735b6 111
cho45 4:54cb552e50c4 112 public:
cho45 5:65d4e94735b6 113 KeyboardMatrixController(I2C& _i2c) :
cho45 5:65d4e94735b6 114 i2c(_i2c),
cho45 5:65d4e94735b6 115 gpio1(i2c, GPIO1_SLAVE_ADDRESS),
cho45 5:65d4e94735b6 116 gpio2(i2c, GPIO2_SLAVE_ADDRESS)
cho45 4:54cb552e50c4 117 {
cho45 4:54cb552e50c4 118 }
cho45 4:54cb552e50c4 119
cho45 5:65d4e94735b6 120 void init() {
cho45 13:b0ffdf2012b9 121 printf("init gpio1\r\n");
cho45 13:b0ffdf2012b9 122 gpio1_ready = setupGpio(gpio1);
cho45 13:b0ffdf2012b9 123 printf("gpio1 initialized: %s\r\n", gpio1_ready ? "success" : "failed");
cho45 13:b0ffdf2012b9 124
cho45 13:b0ffdf2012b9 125 printf("init gpio2\r\n");
cho45 13:b0ffdf2012b9 126 gpio2_ready = setupGpio(gpio2);
cho45 13:b0ffdf2012b9 127 printf("gpio2 initialized: %s\r\n", gpio2_ready ? "success" : "failed");
cho45 13:b0ffdf2012b9 128
cho45 5:65d4e94735b6 129 }
cho45 5:65d4e94735b6 130
cho45 30:f9ebc769118d 131 // __attribute__((used, long_call, section(".data")))
cho45 5:65d4e94735b6 132 void scanKeyboard(uint8_t* keys) {
cho45 5:65d4e94735b6 133 int ok;
cho45 13:b0ffdf2012b9 134
cho45 13:b0ffdf2012b9 135 disableInterrupt();
cho45 5:65d4e94735b6 136
cho45 13:b0ffdf2012b9 137 if (gpio1_ready) {
cho45 13:b0ffdf2012b9 138 for (int i = 0; i < 8; i++) {
cho45 13:b0ffdf2012b9 139 ok = gpio1.write8(
cho45 13:b0ffdf2012b9 140 MCP23017::GPIOA,
cho45 13:b0ffdf2012b9 141 ~(1<<i)
cho45 13:b0ffdf2012b9 142 );
cho45 33:6a2301a89e92 143 wait_us(1);
cho45 13:b0ffdf2012b9 144 keys[i] = gpio1.read8(MCP23017::GPIOB, ok);
cho45 13:b0ffdf2012b9 145 }
cho45 13:b0ffdf2012b9 146
cho45 13:b0ffdf2012b9 147 // set all output to negative for interrupt
cho45 5:65d4e94735b6 148 ok = gpio1.write8(
cho45 5:65d4e94735b6 149 MCP23017::GPIOA,
cho45 13:b0ffdf2012b9 150 0b00000000
cho45 5:65d4e94735b6 151 );
cho45 4:54cb552e50c4 152 }
cho45 2:c2e3f240640c 153
cho45 5:65d4e94735b6 154
cho45 13:b0ffdf2012b9 155 if (gpio2_ready) {
cho45 13:b0ffdf2012b9 156 for (int i = 0; i < 8; i++) {
cho45 13:b0ffdf2012b9 157 ok = gpio2.write8(
cho45 13:b0ffdf2012b9 158 MCP23017::GPIOA,
cho45 13:b0ffdf2012b9 159 ~(1<<i)
cho45 13:b0ffdf2012b9 160 );
cho45 33:6a2301a89e92 161 wait_us(1);
cho45 13:b0ffdf2012b9 162 keys[i+8] = gpio2.read8(MCP23017::GPIOB, ok);
cho45 13:b0ffdf2012b9 163 }
cho45 13:b0ffdf2012b9 164
cho45 13:b0ffdf2012b9 165 // set all output to negative for interrupt
cho45 13:b0ffdf2012b9 166 ok = gpio2.write8(
cho45 13:b0ffdf2012b9 167 MCP23017::GPIOA,
cho45 13:b0ffdf2012b9 168 0b00000000
cho45 13:b0ffdf2012b9 169 );
cho45 13:b0ffdf2012b9 170 }
cho45 13:b0ffdf2012b9 171
cho45 13:b0ffdf2012b9 172 enableInterrupt();
cho45 7:b9270a37345b 173 }
cho45 13:b0ffdf2012b9 174
cho45 7:b9270a37345b 175 void disableInterrupt() {
cho45 7:b9270a37345b 176 int ok;
cho45 13:b0ffdf2012b9 177 if (gpio1_ready) {
cho45 13:b0ffdf2012b9 178 // Disable interrupt
cho45 13:b0ffdf2012b9 179 ok = gpio1.write8(
cho45 13:b0ffdf2012b9 180 MCP23017::GPINTENB,
cho45 13:b0ffdf2012b9 181 0b00000000
cho45 13:b0ffdf2012b9 182 );
cho45 13:b0ffdf2012b9 183 }
cho45 13:b0ffdf2012b9 184
cho45 13:b0ffdf2012b9 185 if (gpio2_ready) {
cho45 13:b0ffdf2012b9 186 // Disable interrupt
cho45 13:b0ffdf2012b9 187 ok = gpio2.write8(
cho45 13:b0ffdf2012b9 188 MCP23017::GPINTENB,
cho45 13:b0ffdf2012b9 189 0b00000000
cho45 13:b0ffdf2012b9 190 );
cho45 13:b0ffdf2012b9 191 }
cho45 33:6a2301a89e92 192
cho45 7:b9270a37345b 193 }
cho45 7:b9270a37345b 194
cho45 7:b9270a37345b 195 void enableInterrupt() {
cho45 7:b9270a37345b 196 int ok;
cho45 13:b0ffdf2012b9 197 if (gpio1_ready) {
cho45 13:b0ffdf2012b9 198 // Enable interrupt
cho45 13:b0ffdf2012b9 199 ok = gpio1.write8(
cho45 13:b0ffdf2012b9 200 MCP23017::GPINTENB,
cho45 13:b0ffdf2012b9 201 0b11111111
cho45 13:b0ffdf2012b9 202 );
cho45 13:b0ffdf2012b9 203 }
cho45 13:b0ffdf2012b9 204
cho45 13:b0ffdf2012b9 205 if (gpio2_ready) {
cho45 13:b0ffdf2012b9 206 // Enable interrupt
cho45 13:b0ffdf2012b9 207 ok = gpio2.write8(
cho45 13:b0ffdf2012b9 208 MCP23017::GPINTENB,
cho45 13:b0ffdf2012b9 209 0b11111111
cho45 13:b0ffdf2012b9 210 );
cho45 13:b0ffdf2012b9 211 }
cho45 5:65d4e94735b6 212
cho45 5:65d4e94735b6 213 // Clear interrupt
cho45 13:b0ffdf2012b9 214 // gpio1.read8(MCP23017::GPIOB, ok);
cho45 4:54cb552e50c4 215 }
cho45 5:65d4e94735b6 216 };
cho45 4:54cb552e50c4 217
cho45 5:65d4e94735b6 218 I2C i2c(I2C_SDA0, I2C_SCL0);
cho45 16:345eebc4f259 219 // Serial serial(USBTX, USBRX);
cho45 5:65d4e94735b6 220 KeyboardMatrixController keyboardMatrixController(i2c);
cho45 6:f1c3ea8bc850 221 Keymap keymap;
cho45 15:70bf079d3ee1 222
cho45 15:70bf079d3ee1 223 // Interrupt from MCP23017
cho45 15:70bf079d3ee1 224 // (pulled-up and two MCP23017 is configured with open drain INT)
cho45 5:65d4e94735b6 225 InterruptIn buttonInt(P0_5);
cho45 5:65d4e94735b6 226
cho45 28:1f843a3daab0 227 DigitalOut statusLed(P0_4, 0);
cho45 26:78ee13f69ec3 228
cho45 25:094df0d9e95b 229
cho45 15:70bf079d3ee1 230 // Unsed pins. Set to output for power consumption
cho45 35:6a7fddfa14cf 231
cho45 35:6a7fddfa14cf 232 // Pad pinout
cho45 35:6a7fddfa14cf 233 /*
cho45 20:d8840ac38434 234 DigitalIn unused_p0_7(P0_7, PullUp);
cho45 20:d8840ac38434 235 DigitalIn unused_p0_6(P0_6, PullUp);
cho45 20:d8840ac38434 236 DigitalIn unused_p0_15(P0_15, PullUp);
cho45 20:d8840ac38434 237 DigitalIn unused_p0_29(P0_29, PullUp);
cho45 20:d8840ac38434 238 DigitalIn unused_p0_28(P0_28, PullUp);
cho45 35:6a7fddfa14cf 239 */
cho45 35:6a7fddfa14cf 240
cho45 20:d8840ac38434 241 DigitalIn unused_p0_19(P0_19, PullUp); // This is on board LED which connected to VDD
cho45 22:a78f0a91280a 242 DigitalIn unused_p0_11(P0_11, PullUp); // RXD
cho45 15:70bf079d3ee1 243
cho45 35:6a7fddfa14cf 244 Timeout timeout;
cho45 35:6a7fddfa14cf 245
cho45 5:65d4e94735b6 246 // ROWS=8
cho45 5:65d4e94735b6 247 // COLS=16
cho45 5:65d4e94735b6 248 // 列ごとに1バイトにパックしてキーの状態を保持する
cho45 5:65d4e94735b6 249 static uint8_t keysA[COLS];
cho45 5:65d4e94735b6 250 static uint8_t keysB[COLS];
cho45 5:65d4e94735b6 251 static bool state = 0;
cho45 28:1f843a3daab0 252 #define is_pressed(keys, row, col) (!!(keys[col] & (1<<row)))
cho45 28:1f843a3daab0 253
cho45 9:d1daefbf1fbd 254 // delay for interrupt
cho45 23:b31957ce64e9 255 static volatile int8_t pollCount = 50;
cho45 5:65d4e94735b6 256
cho45 5:65d4e94735b6 257 void buttonIntCallback() {
cho45 8:d684faf04c9a 258 // just for wakeup
cho45 33:6a2301a89e92 259 pollCount = 25;
cho45 2:c2e3f240640c 260 }
cho45 2:c2e3f240640c 261
cho45 23:b31957ce64e9 262 void powerOff() {
cho45 23:b31957ce64e9 263 printf("power off\r\n");
cho45 23:b31957ce64e9 264 NRF_POWER->SYSTEMOFF = 1;
cho45 23:b31957ce64e9 265 }
cho45 23:b31957ce64e9 266
cho45 26:78ee13f69ec3 267 void tickerStatus() {
cho45 28:1f843a3daab0 268 statusLed = !statusLed;
cho45 26:78ee13f69ec3 269 }
cho45 26:78ee13f69ec3 270
cho45 35:6a7fddfa14cf 271 static bool updateStatudLedEnabled = false;
cho45 35:6a7fddfa14cf 272 void updateStatusLed() {
cho45 35:6a7fddfa14cf 273 switch (HIDController::status()) {
cho45 35:6a7fddfa14cf 274 case TIMEOUT:
cho45 35:6a7fddfa14cf 275 case DISCONNECTED: timeout.attach(updateStatusLed, statusLed ? 3 : 0.1); break;
cho45 35:6a7fddfa14cf 276 case ADVERTISING:
cho45 35:6a7fddfa14cf 277 case CONNECTING: timeout.attach(updateStatusLed, statusLed ? 0.5 : 0.1); break;
cho45 35:6a7fddfa14cf 278 case CONNECTED: statusLed = 0; updateStatudLedEnabled = false; return;
cho45 35:6a7fddfa14cf 279 }
cho45 35:6a7fddfa14cf 280 statusLed = !statusLed;
cho45 35:6a7fddfa14cf 281 updateStatudLedEnabled = true;
cho45 35:6a7fddfa14cf 282 }
cho45 35:6a7fddfa14cf 283
cho45 31:010a44d53627 284 static volatile bool timer1_interrupted = false;
cho45 31:010a44d53627 285 extern "C" void TIMER1_IRQHandler(void) {
cho45 31:010a44d53627 286 NRF_TIMER1->EVENTS_COMPARE[0] = 0;
cho45 31:010a44d53627 287 NRF_TIMER1->TASKS_CLEAR = 1;
cho45 31:010a44d53627 288 timer1_interrupted = true;
cho45 30:f9ebc769118d 289 }
cho45 30:f9ebc769118d 290
cho45 32:6c0f43fda460 291 class WatchDog {
cho45 32:6c0f43fda460 292 static const uint32_t RELOAD_VALUE = 0x6E524635;
cho45 33:6a2301a89e92 293 static const uint8_t WDT_TIMEOUT = 5; // sec
cho45 32:6c0f43fda460 294 public:
cho45 32:6c0f43fda460 295 static void init() {
cho45 32:6c0f43fda460 296 // timeout [s] = (CRV + 1) / 32768;
cho45 32:6c0f43fda460 297 // crv = 32768 * timeout - 1
cho45 32:6c0f43fda460 298 NRF_WDT->CRV = 32768 * WDT_TIMEOUT - 1;
cho45 32:6c0f43fda460 299 NRF_WDT->RREN = WDT_RREN_RR0_Enabled << WDT_RREN_RR0_Pos;
cho45 32:6c0f43fda460 300 NRF_WDT->CONFIG = WDT_CONFIG_SLEEP_Pause << WDT_CONFIG_SLEEP_Pos;
cho45 32:6c0f43fda460 301 NRF_WDT->TASKS_START = 1;
cho45 32:6c0f43fda460 302 }
cho45 32:6c0f43fda460 303
cho45 32:6c0f43fda460 304 static void reload() {
cho45 32:6c0f43fda460 305 NRF_WDT->RR[0] = RELOAD_VALUE;
cho45 32:6c0f43fda460 306 }
cho45 35:6a7fddfa14cf 307
cho45 32:6c0f43fda460 308 };
cho45 28:1f843a3daab0 309
cho45 35:6a7fddfa14cf 310
cho45 0:be89b5fdea09 311 int main(void) {
cho45 33:6a2301a89e92 312 {
cho45 33:6a2301a89e92 313 uint32_t reason = NRF_POWER->RESETREAS;
cho45 33:6a2301a89e92 314 NRF_POWER->RESETREAS = 0xffffffff; // clear reason
cho45 33:6a2301a89e92 315 printf("init [%x]\r\n", reason);
cho45 33:6a2301a89e92 316 }
cho45 35:6a7fddfa14cf 317
cho45 30:f9ebc769118d 318 // Enable Pin-reset on DEBUG mode
cho45 30:f9ebc769118d 319 // This makes possiable booting without normal mode easily.
cho45 30:f9ebc769118d 320 NRF_POWER->RESET = 1;
cho45 30:f9ebc769118d 321 // Disable Internal DC/DC step down converter surely
cho45 29:ec548c473d50 322 NRF_POWER->DCDCEN = 0;
cho45 30:f9ebc769118d 323 // Enable 2.1V brown out detection for avoiding over discharge of NiMH
cho45 29:ec548c473d50 324 NRF_POWER->POFCON =
cho45 29:ec548c473d50 325 POWER_POFCON_POF_Enabled << POWER_POFCON_POF_Pos |
cho45 29:ec548c473d50 326 POWER_POFCON_THRESHOLD_V21 << POWER_POFCON_THRESHOLD_Pos;
cho45 29:ec548c473d50 327
cho45 4:54cb552e50c4 328 // mbed's Serial of TARGET_RBLAB_BLENANO sucks
cho45 30:f9ebc769118d 329 // DO NOT CONNECT RTS/CTS WITHOUT PRIOR CONSENT!
cho45 4:54cb552e50c4 330 NRF_UART0->PSELRTS = 0xFFFFFFFFUL;
cho45 4:54cb552e50c4 331 NRF_UART0->PSELCTS = 0xFFFFFFFFUL;
cho45 16:345eebc4f259 332
cho45 31:010a44d53627 333 // Setup timer for just wakeup from sleep
cho45 31:010a44d53627 334 NRF_TIMER1->TASKS_STOP = 1;
cho45 31:010a44d53627 335 NRF_TIMER1->PRESCALER = 4; // f = HFCLK / 2^N => 1MHz timer
cho45 31:010a44d53627 336 // TIMER1 is 16bit timer
cho45 31:010a44d53627 337 NRF_TIMER1->BITMODE = TIMER_BITMODE_BITMODE_16Bit << TIMER_BITMODE_BITMODE_Pos;
cho45 31:010a44d53627 338 NRF_TIMER1->MODE = TIMER_MODE_MODE_Timer << TIMER_MODE_MODE_Pos;
cho45 31:010a44d53627 339 NVIC_SetPriority(TIMER1_IRQn, 3);
cho45 31:010a44d53627 340 NVIC_ClearPendingIRQ(TIMER1_IRQn);
cho45 31:010a44d53627 341 NVIC_EnableIRQ(TIMER1_IRQn);
cho45 31:010a44d53627 342
cho45 32:6c0f43fda460 343 WatchDog::init();
cho45 31:010a44d53627 344
cho45 4:54cb552e50c4 345 // 100kHz
cho45 4:54cb552e50c4 346 i2c.frequency(100000);
cho45 4:54cb552e50c4 347
cho45 5:65d4e94735b6 348 buttonInt.mode(PullUp);
cho45 5:65d4e94735b6 349 buttonInt.fall(buttonIntCallback);
cho45 4:54cb552e50c4 350
cho45 5:65d4e94735b6 351 keyboardMatrixController.init();
cho45 33:6a2301a89e92 352 pollCount = 10;
cho45 4:54cb552e50c4 353
cho45 6:f1c3ea8bc850 354 HIDController::init();
cho45 16:345eebc4f259 355
cho45 16:345eebc4f259 356 // STOP UART RX for power consumption
cho45 21:d801c32231b0 357 NRF_UART0->TASKS_STOPRX = 1;
cho45 16:345eebc4f259 358
cho45 30:f9ebc769118d 359 // Disable TWI by default.
cho45 16:345eebc4f259 360 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos;
cho45 35:6a7fddfa14cf 361
cho45 32:6c0f43fda460 362 while (1) {
cho45 32:6c0f43fda460 363 WatchDog::reload();
cho45 35:6a7fddfa14cf 364
cho45 23:b31957ce64e9 365 if (pollCount > 0) {
cho45 23:b31957ce64e9 366 printf("scan keys\r\n");
cho45 31:010a44d53627 367
cho45 33:6a2301a89e92 368 while (pollCount-- > 0) {
cho45 33:6a2301a89e92 369 WatchDog::reload();
cho45 33:6a2301a89e92 370
cho45 23:b31957ce64e9 371 uint8_t (&keysCurr)[COLS] = state ? keysA : keysB;
cho45 23:b31957ce64e9 372 uint8_t (&keysPrev)[COLS] = state ? keysB : keysA;
cho45 23:b31957ce64e9 373
cho45 23:b31957ce64e9 374 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos;
cho45 23:b31957ce64e9 375 keyboardMatrixController.scanKeyboard(keysCurr);
cho45 23:b31957ce64e9 376 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos;
cho45 23:b31957ce64e9 377
cho45 23:b31957ce64e9 378 bool queue = false;
cho45 23:b31957ce64e9 379
cho45 23:b31957ce64e9 380 for (int col = 0; col < COLS; col++) {
cho45 23:b31957ce64e9 381 uint8_t changed = keysPrev[col] ^ keysCurr[col];
cho45 23:b31957ce64e9 382 if (changed) queue = true;
cho45 23:b31957ce64e9 383 for (int row = 0; row < ROWS; row++) {
cho45 23:b31957ce64e9 384 if (changed & (1<<row)) {
cho45 23:b31957ce64e9 385 bool pressed = keysCurr[col] & (1<<row);
cho45 23:b31957ce64e9 386 // printf("changed: col=%d, row=%d / pressed=%d\r\n", col, row, pressed);
cho45 23:b31957ce64e9 387 keymap.execute(col, row, pressed);
cho45 23:b31957ce64e9 388 }
cho45 7:b9270a37345b 389 }
cho45 7:b9270a37345b 390 }
cho45 23:b31957ce64e9 391 state = !state;
cho45 35:6a7fddfa14cf 392
cho45 35:6a7fddfa14cf 393
cho45 23:b31957ce64e9 394 if (queue) HIDController::queueCurrentReportData();
cho45 30:f9ebc769118d 395
cho45 31:010a44d53627 396 // wait_ms(5); is busy loop
cho45 31:010a44d53627 397 // use timer1 to use wait 5ms
cho45 31:010a44d53627 398 NRF_TIMER1->CC[0] = 1e6 / 200; // 5ms
cho45 31:010a44d53627 399 NRF_TIMER1->EVENTS_COMPARE[0] = 0;
cho45 31:010a44d53627 400 NRF_TIMER1->TASKS_CLEAR = 1;
cho45 31:010a44d53627 401 NRF_TIMER1->INTENSET = TIMER_INTENSET_COMPARE0_Set << TIMER_INTENSET_COMPARE0_Pos;
cho45 31:010a44d53627 402 NRF_TIMER1->TASKS_START = 1;
cho45 31:010a44d53627 403 while (!timer1_interrupted) sleep();
cho45 31:010a44d53627 404 timer1_interrupted = false;
cho45 31:010a44d53627 405 NRF_TIMER1->INTENCLR = TIMER_INTENCLR_COMPARE0_Clear << TIMER_INTENCLR_COMPARE0_Pos;
cho45 31:010a44d53627 406 NRF_TIMER1->TASKS_STOP = 1;
cho45 7:b9270a37345b 407 }
cho45 30:f9ebc769118d 408
cho45 31:010a44d53627 409 printf("disable int\r\n");
cho45 31:010a44d53627 410 NRF_TIMER1->TASKS_SHUTDOWN = 1;
cho45 8:d684faf04c9a 411 } else {
cho45 35:6a7fddfa14cf 412 if (!updateStatudLedEnabled) updateStatusLed();
cho45 32:6c0f43fda460 413 printf("[%d:%s] wait for events...\r\n", HIDController::status(), HIDController::statusString());
cho45 29:ec548c473d50 414
cho45 30:f9ebc769118d 415 // allow printf in some interrupts while connecting
cho45 29:ec548c473d50 416 if (HIDController::connected()) {
cho45 30:f9ebc769118d 417 // disable internal HFCLK RC Clock surely. It consume 1mA constantly
cho45 30:f9ebc769118d 418 // TWI / SPI / UART must be disabled and boot without debug mode
cho45 29:ec548c473d50 419 while (NRF_UART0->EVENTS_TXDRDY != 1);
cho45 29:ec548c473d50 420
cho45 29:ec548c473d50 421 uint32_t tx = NRF_UART0->PSELTXD;
cho45 29:ec548c473d50 422
cho45 29:ec548c473d50 423 NRF_UART0->TASKS_STOPTX = 1;
cho45 29:ec548c473d50 424 NRF_UART0->ENABLE = (UART_ENABLE_ENABLE_Disabled << UART_ENABLE_ENABLE_Pos);
cho45 29:ec548c473d50 425
cho45 29:ec548c473d50 426 HIDController::waitForEvent();
cho45 29:ec548c473d50 427
cho45 29:ec548c473d50 428 NRF_UART0->ENABLE = (UART_ENABLE_ENABLE_Enabled << UART_ENABLE_ENABLE_Pos);
cho45 29:ec548c473d50 429 NRF_UART0->TASKS_STARTTX = 1;
cho45 30:f9ebc769118d 430 // dummy send to wakeup...
cho45 29:ec548c473d50 431 NRF_UART0->PSELTXD = 0xFFFFFFFF;
cho45 29:ec548c473d50 432 NRF_UART0->EVENTS_TXDRDY = 0;
cho45 29:ec548c473d50 433 NRF_UART0->TXD = 0;
cho45 29:ec548c473d50 434 while (NRF_UART0->EVENTS_TXDRDY != 1);
cho45 29:ec548c473d50 435 NRF_UART0->PSELTXD = tx;
cho45 29:ec548c473d50 436 } else {
cho45 29:ec548c473d50 437 HIDController::waitForEvent();
cho45 29:ec548c473d50 438 }
cho45 7:b9270a37345b 439 }
cho45 2:c2e3f240640c 440 }
cho45 31:010a44d53627 441 }