Hiroh Satoh / keyboard Featured

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Dependencies:   BLE_API mbed-dev nRF51822

main.cpp@42:2c3be8694896, 2016-08-27 (annotated)

Committer:
cho45
Date:
Sat Aug 27 08:43:53 2016 +0000
Revision:
42:2c3be8694896
Parent:
41:2b034f22b98f
Child:
43:4de3870b39cb
?????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cho45 42:2c3be8694896 1 /* BLE Keyboard Implementation for mbed
cho45 42:2c3be8694896 2 * Copyright (c) 2016 cho45 <cho45@lowreal.net>
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 42:2c3be8694896 21 #include "KeyboardMatrixController.h"
cho45 42:2c3be8694896 22 #include "BatteryLevel.h"
cho45 42:2c3be8694896 23 #include "WatchDog.h"
cho45 4:54cb552e50c4 24
cho45 42:2c3be8694896 25 #include "keymap.h"
cho45 42:2c3be8694896 26 #include "config.h"
cho45 5:65d4e94735b6 27
cho45 42:2c3be8694896 28 RawSerial serial(USBTX, USBRX);
cho45 5:65d4e94735b6 29 I2C i2c(I2C_SDA0, I2C_SCL0);
cho45 5:65d4e94735b6 30 KeyboardMatrixController keyboardMatrixController(i2c);
cho45 6:f1c3ea8bc850 31 Keymap keymap;
cho45 15:70bf079d3ee1 32
cho45 15:70bf079d3ee1 33 // Interrupt from MCP23017
cho45 15:70bf079d3ee1 34 // (pulled-up and two MCP23017 is configured with open drain INT)
cho45 5:65d4e94735b6 35 InterruptIn buttonInt(P0_5);
cho45 5:65d4e94735b6 36
cho45 37:4ce71fa47fc3 37 #define PIN_STATUS_LED P0_4
cho45 37:4ce71fa47fc3 38 DigitalOut statusLed(PIN_STATUS_LED, 0);
cho45 25:094df0d9e95b 39
cho45 35:6a7fddfa14cf 40 Timeout timeout;
cho45 35:6a7fddfa14cf 41
cho45 5:65d4e94735b6 42 // ROWS=8
cho45 5:65d4e94735b6 43 // COLS=16
cho45 5:65d4e94735b6 44 // 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 45 static uint8_t keysA[COLS];
cho45 5:65d4e94735b6 46 static uint8_t keysB[COLS];
cho45 5:65d4e94735b6 47 static bool state = 0;
cho45 28:1f843a3daab0 48 #define is_pressed(keys, row, col) (!!(keys[col] & (1<<row)))
cho45 28:1f843a3daab0 49
cho45 9:d1daefbf1fbd 50 // delay for interrupt
cho45 23:b31957ce64e9 51 static volatile int8_t pollCount = 50;
cho45 5:65d4e94735b6 52
cho45 5:65d4e94735b6 53 void buttonIntCallback() {
cho45 8:d684faf04c9a 54 // just for wakeup
cho45 33:6a2301a89e92 55 pollCount = 25;
cho45 2:c2e3f240640c 56 }
cho45 2:c2e3f240640c 57
cho45 23:b31957ce64e9 58 void powerOff() {
cho45 42:2c3be8694896 59 DEBUG_PRINTF("power off\r\n");
cho45 23:b31957ce64e9 60 NRF_POWER->SYSTEMOFF = 1;
cho45 23:b31957ce64e9 61 }
cho45 23:b31957ce64e9 62
cho45 26:78ee13f69ec3 63 void tickerStatus() {
cho45 28:1f843a3daab0 64 statusLed = !statusLed;
cho45 26:78ee13f69ec3 65 }
cho45 26:78ee13f69ec3 66
cho45 35:6a7fddfa14cf 67 static bool updateStatudLedEnabled = false;
cho45 35:6a7fddfa14cf 68 void updateStatusLed() {
cho45 35:6a7fddfa14cf 69 switch (HIDController::status()) {
cho45 35:6a7fddfa14cf 70 case TIMEOUT:
cho45 38:115875b8cb6c 71 case DISCONNECTED:
cho45 38:115875b8cb6c 72 case CONNECTED:
cho45 38:115875b8cb6c 73 statusLed = 0;
cho45 38:115875b8cb6c 74 updateStatudLedEnabled = false;
cho45 38:115875b8cb6c 75 return;
cho45 35:6a7fddfa14cf 76 case ADVERTISING:
cho45 38:115875b8cb6c 77 case CONNECTING:
cho45 38:115875b8cb6c 78 statusLed = !statusLed;
cho45 38:115875b8cb6c 79 updateStatudLedEnabled = true;
cho45 38:115875b8cb6c 80 timeout.attach(updateStatusLed, statusLed ? 0.5 : 0.1);
cho45 38:115875b8cb6c 81 break;
cho45 35:6a7fddfa14cf 82 }
cho45 35:6a7fddfa14cf 83 }
cho45 35:6a7fddfa14cf 84
cho45 36:78c211da4eb0 85 static volatile bool keyIntervalInterrupt = false;
cho45 36:78c211da4eb0 86 void wakeupKeyIntervalSleep() {
cho45 36:78c211da4eb0 87 keyIntervalInterrupt = true;
cho45 30:f9ebc769118d 88 }
cho45 30:f9ebc769118d 89
cho45 38:115875b8cb6c 90 #define is_pressed(keys, row, col) (!!(keys[col] & (1<<row)))
cho45 35:6a7fddfa14cf 91
cho45 0:be89b5fdea09 92 int main(void) {
cho45 33:6a2301a89e92 93 {
cho45 33:6a2301a89e92 94 uint32_t reason = NRF_POWER->RESETREAS;
cho45 33:6a2301a89e92 95 NRF_POWER->RESETREAS = 0xffffffff; // clear reason
cho45 42:2c3be8694896 96 serial.printf("init [%x]\r\n", reason);
cho45 33:6a2301a89e92 97 }
cho45 37:4ce71fa47fc3 98
cho45 42:2c3be8694896 99 float battery = BatteryLevel::readBatteryVoltage();
cho45 42:2c3be8694896 100 if (battery < BatteryLevel::BATTERY_LOW) {
cho45 37:4ce71fa47fc3 101 powerOff();
cho45 37:4ce71fa47fc3 102 }
cho45 35:6a7fddfa14cf 103
cho45 30:f9ebc769118d 104 // Enable Pin-reset on DEBUG mode
cho45 30:f9ebc769118d 105 // This makes possiable booting without normal mode easily.
cho45 30:f9ebc769118d 106 NRF_POWER->RESET = 1;
cho45 30:f9ebc769118d 107 // Disable Internal DC/DC step down converter surely
cho45 29:ec548c473d50 108 NRF_POWER->DCDCEN = 0;
cho45 30:f9ebc769118d 109 // Enable 2.1V brown out detection for avoiding over discharge of NiMH
cho45 29:ec548c473d50 110 NRF_POWER->POFCON =
cho45 29:ec548c473d50 111 POWER_POFCON_POF_Enabled << POWER_POFCON_POF_Pos |
cho45 29:ec548c473d50 112 POWER_POFCON_THRESHOLD_V21 << POWER_POFCON_THRESHOLD_Pos;
cho45 29:ec548c473d50 113
cho45 4:54cb552e50c4 114 // mbed's Serial of TARGET_RBLAB_BLENANO sucks
cho45 30:f9ebc769118d 115 // DO NOT CONNECT RTS/CTS WITHOUT PRIOR CONSENT!
cho45 4:54cb552e50c4 116 NRF_UART0->PSELRTS = 0xFFFFFFFFUL;
cho45 4:54cb552e50c4 117 NRF_UART0->PSELCTS = 0xFFFFFFFFUL;
cho45 37:4ce71fa47fc3 118
cho45 37:4ce71fa47fc3 119 // Set LED Pin as HIGH Current mode
cho45 37:4ce71fa47fc3 120 NRF_GPIO->PIN_CNF[PIN_STATUS_LED] =
cho45 41:2b034f22b98f 121 (NRF_GPIO->PIN_CNF[PIN_STATUS_LED] & ~GPIO_PIN_CNF_DRIVE_Msk) |
cho45 41:2b034f22b98f 122 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos);
cho45 16:345eebc4f259 123
cho45 42:2c3be8694896 124 // Unsed pins.
cho45 42:2c3be8694896 125 // Set as PullUp for power consumption
cho45 42:2c3be8694896 126 // Use GPIO registers directly for saving ram
cho45 42:2c3be8694896 127 // Pad pinouts
cho45 42:2c3be8694896 128 /*
cho45 42:2c3be8694896 129 DigitalIn unused_p0_7(P0_7, PullUp);
cho45 42:2c3be8694896 130 DigitalIn unused_p0_6(P0_6, PullUp);
cho45 42:2c3be8694896 131 DigitalIn unused_p0_15(P0_15, PullUp);
cho45 42:2c3be8694896 132 DigitalIn unused_p0_29(P0_29, PullUp);
cho45 42:2c3be8694896 133 DigitalIn unused_p0_28(P0_28, PullUp);
cho45 42:2c3be8694896 134 */
cho45 42:2c3be8694896 135 NRF_GPIO->PIN_CNF[P0_7] =
cho45 42:2c3be8694896 136 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 137 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 138 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 139 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 140 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 141 NRF_GPIO->PIN_CNF[P0_6] =
cho45 42:2c3be8694896 142 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 143 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 144 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 145 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 146 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 147 NRF_GPIO->PIN_CNF[P0_15] =
cho45 42:2c3be8694896 148 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 149 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 150 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 151 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 152 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 153 NRF_GPIO->PIN_CNF[P0_29] =
cho45 42:2c3be8694896 154 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 155 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 156 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 157 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 158 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 159 NRF_GPIO->PIN_CNF[P0_28] =
cho45 42:2c3be8694896 160 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 161 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 162 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 163 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 164 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 165 /*
cho45 42:2c3be8694896 166 DigitalIn unused_p0_19(P0_19, PullUp); // This is on board LED which connected to VDD
cho45 42:2c3be8694896 167 DigitalIn unused_p0_11(P0_11, PullUp); // RXD
cho45 42:2c3be8694896 168 */
cho45 42:2c3be8694896 169 NRF_GPIO->PIN_CNF[P0_19] = // This is on board LED which connected to VDD
cho45 42:2c3be8694896 170 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 171 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 172 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 173 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 174 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 175 NRF_GPIO->PIN_CNF[P0_11] = // RXD
cho45 42:2c3be8694896 176 (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
cho45 42:2c3be8694896 177 (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
cho45 42:2c3be8694896 178 (GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) |
cho45 42:2c3be8694896 179 (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
cho45 42:2c3be8694896 180 (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
cho45 42:2c3be8694896 181
cho45 32:6c0f43fda460 182 WatchDog::init();
cho45 42:2c3be8694896 183
cho45 42:2c3be8694896 184 // only 100kHz/250khz/400khz
cho45 36:78c211da4eb0 185 i2c.frequency(250000);
cho45 4:54cb552e50c4 186
cho45 5:65d4e94735b6 187 buttonInt.mode(PullUp);
cho45 5:65d4e94735b6 188 buttonInt.fall(buttonIntCallback);
cho45 4:54cb552e50c4 189
cho45 5:65d4e94735b6 190 keyboardMatrixController.init();
cho45 33:6a2301a89e92 191 pollCount = 10;
cho45 4:54cb552e50c4 192
cho45 6:f1c3ea8bc850 193 HIDController::init();
cho45 16:345eebc4f259 194
cho45 16:345eebc4f259 195 // STOP UART RX for power consumption
cho45 21:d801c32231b0 196 NRF_UART0->TASKS_STOPRX = 1;
cho45 16:345eebc4f259 197
cho45 30:f9ebc769118d 198 // Disable TWI by default.
cho45 16:345eebc4f259 199 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos;
cho45 35:6a7fddfa14cf 200
cho45 32:6c0f43fda460 201 while (1) {
cho45 32:6c0f43fda460 202 WatchDog::reload();
cho45 35:6a7fddfa14cf 203
cho45 23:b31957ce64e9 204 if (pollCount > 0) {
cho45 42:2c3be8694896 205 DEBUG_PRINTF("scan keys\r\n");
cho45 31:010a44d53627 206
cho45 33:6a2301a89e92 207 while (pollCount-- > 0) {
cho45 33:6a2301a89e92 208 WatchDog::reload();
cho45 33:6a2301a89e92 209
cho45 23:b31957ce64e9 210 uint8_t (&keysCurr)[COLS] = state ? keysA : keysB;
cho45 23:b31957ce64e9 211 uint8_t (&keysPrev)[COLS] = state ? keysB : keysA;
cho45 23:b31957ce64e9 212
cho45 23:b31957ce64e9 213 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos;
cho45 23:b31957ce64e9 214 keyboardMatrixController.scanKeyboard(keysCurr);
cho45 23:b31957ce64e9 215 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos;
cho45 23:b31957ce64e9 216
cho45 23:b31957ce64e9 217 bool queue = false;
cho45 23:b31957ce64e9 218
cho45 23:b31957ce64e9 219 for (int col = 0; col < COLS; col++) {
cho45 23:b31957ce64e9 220 uint8_t changed = keysPrev[col] ^ keysCurr[col];
cho45 23:b31957ce64e9 221 if (changed) queue = true;
cho45 23:b31957ce64e9 222 for (int row = 0; row < ROWS; row++) {
cho45 23:b31957ce64e9 223 if (changed & (1<<row)) {
cho45 23:b31957ce64e9 224 bool pressed = keysCurr[col] & (1<<row);
cho45 42:2c3be8694896 225 // DEBUG_KEYEVENT("changed: col=%d, row=%d / pressed=%d\r\n", col, row, pressed);
cho45 23:b31957ce64e9 226 keymap.execute(col, row, pressed);
cho45 23:b31957ce64e9 227 }
cho45 7:b9270a37345b 228 }
cho45 7:b9270a37345b 229 }
cho45 23:b31957ce64e9 230 state = !state;
cho45 35:6a7fddfa14cf 231
cho45 38:115875b8cb6c 232 if (HIDController::status() == DISCONNECTED ||
cho45 38:115875b8cb6c 233 HIDController::status() == TIMEOUT) {
cho45 38:115875b8cb6c 234
cho45 38:115875b8cb6c 235 if (
cho45 38:115875b8cb6c 236 is_pressed(keysCurr, 0, 0) && // left top 1
cho45 38:115875b8cb6c 237 is_pressed(keysCurr, 1, 0) && // left top 2
cho45 38:115875b8cb6c 238 is_pressed(keysCurr, 0, 15) // right top
cho45 38:115875b8cb6c 239 ) {
cho45 42:2c3be8694896 240 DEBUG_PRINTF("re-init connection\r\n");
cho45 40:364deaa190fe 241 HIDController::initializeConnection(true);
cho45 40:364deaa190fe 242 } else {
cho45 40:364deaa190fe 243 if (HIDController::status() == TIMEOUT) {
cho45 42:2c3be8694896 244 DEBUG_PRINTF("wakeup\r\n");
cho45 40:364deaa190fe 245 HIDController::initializeConnection(false);
cho45 40:364deaa190fe 246 }
cho45 38:115875b8cb6c 247 }
cho45 38:115875b8cb6c 248 }
cho45 35:6a7fddfa14cf 249
cho45 23:b31957ce64e9 250 if (queue) HIDController::queueCurrentReportData();
cho45 30:f9ebc769118d 251
cho45 31:010a44d53627 252 // wait_ms(5); is busy loop
cho45 31:010a44d53627 253 // use timer1 to use wait 5ms
cho45 36:78c211da4eb0 254 timeout.attach_us(wakeupKeyIntervalSleep, 5000);
cho45 36:78c211da4eb0 255 keyIntervalInterrupt = false;
cho45 36:78c211da4eb0 256 while (!keyIntervalInterrupt) sleep();
cho45 7:b9270a37345b 257 }
cho45 8:d684faf04c9a 258 } else {
cho45 35:6a7fddfa14cf 259 if (!updateStatudLedEnabled) updateStatusLed();
cho45 37:4ce71fa47fc3 260
cho45 42:2c3be8694896 261 float batteryVoltage = BatteryLevel::readBatteryVoltage();
cho45 42:2c3be8694896 262 uint8_t batteryPercentage = BatteryLevel::readBatteryPercentage(batteryVoltage);
cho45 42:2c3be8694896 263 bool isLowBattery = batteryVoltage < BatteryLevel::BATTERY_LOW;
cho45 37:4ce71fa47fc3 264
cho45 42:2c3be8694896 265 DEBUG_PRINTF("%d%% [%d:%s] %s\r\n",
cho45 37:4ce71fa47fc3 266 batteryPercentage,
cho45 37:4ce71fa47fc3 267 HIDController::status(),
cho45 37:4ce71fa47fc3 268 HIDController::statusString(),
cho45 39:b7889285c9ef 269 isLowBattery ? "LOWBAT" : "WFE"
cho45 37:4ce71fa47fc3 270 );
cho45 37:4ce71fa47fc3 271
cho45 37:4ce71fa47fc3 272 HIDController::updateBatteryLevel(batteryPercentage);
cho45 37:4ce71fa47fc3 273
cho45 37:4ce71fa47fc3 274 if (isLowBattery) {
cho45 37:4ce71fa47fc3 275 powerOff();
cho45 37:4ce71fa47fc3 276 }
cho45 29:ec548c473d50 277
cho45 39:b7889285c9ef 278
cho45 42:2c3be8694896 279 if (DEBUG_BLE_INTERRUPT) {
cho45 42:2c3be8694896 280 HIDController::waitForEvent();
cho45 42:2c3be8694896 281 } else {
cho45 42:2c3be8694896 282 // disable internal HFCLK RC Clock surely. It consume 1mA constantly
cho45 42:2c3be8694896 283 // TWI / SPI / UART must be disabled and boot without debug mode
cho45 42:2c3be8694896 284 while (NRF_UART0->EVENTS_TXDRDY != 1);
cho45 42:2c3be8694896 285
cho45 42:2c3be8694896 286 uint32_t tx = NRF_UART0->PSELTXD;
cho45 42:2c3be8694896 287
cho45 42:2c3be8694896 288 NRF_UART0->TASKS_STOPTX = 1;
cho45 42:2c3be8694896 289 NRF_UART0->ENABLE = (UART_ENABLE_ENABLE_Disabled << UART_ENABLE_ENABLE_Pos);
cho45 42:2c3be8694896 290
cho45 42:2c3be8694896 291 HIDController::waitForEvent();
cho45 42:2c3be8694896 292
cho45 42:2c3be8694896 293 NRF_UART0->ENABLE = (UART_ENABLE_ENABLE_Enabled << UART_ENABLE_ENABLE_Pos);
cho45 42:2c3be8694896 294 NRF_UART0->TASKS_STARTTX = 1;
cho45 42:2c3be8694896 295 // dummy send to wakeup...
cho45 42:2c3be8694896 296 NRF_UART0->PSELTXD = 0xFFFFFFFF;
cho45 42:2c3be8694896 297 NRF_UART0->EVENTS_TXDRDY = 0;
cho45 42:2c3be8694896 298 NRF_UART0->TXD = 0;
cho45 42:2c3be8694896 299 while (NRF_UART0->EVENTS_TXDRDY != 1);
cho45 42:2c3be8694896 300 NRF_UART0->PSELTXD = tx;
cho45 42:2c3be8694896 301 }
cho45 7:b9270a37345b 302 }
cho45 2:c2e3f240640c 303 }
cho45 31:010a44d53627 304 }