The firmware of the Grove Node
Dependencies: BLE_API color_pixels mbed-src-nrf51822 nRF51822
Fork of BLE_LoopbackUART by
main.cpp
- Committer:
- yihui
- Date:
- 2015-06-04
- Revision:
- 11:c0885b74a63a
- Parent:
- 10:f34ff4e47741
File content as of revision 11:c0885b74a63a:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "BLEDevice.h" #include "DFUService.h" #include "UARTService.h" #include "nrf_delay.h" #include "battery.h" #define DEBUG 0 #if DEBUG // for Arch BLE #define LOG(...) { printf(__VA_ARGS__); } #define BUTTON_DOWN 1 #define LED_ON 1 #define LED_OFF 0 DigitalOut blue(p30); DigitalOut green(p17); InterruptIn button(p5); #else // for Grove Node BLE #define LOG(...) #define BUTTON_DOWN 0 #define LED_ON 0 #define LED_OFF 1 DigitalOut blue(p18); DigitalOut green(p17); InterruptIn button(p30); #endif Battery battery(p5); BLEDevice ble; UARTService *uartServicePtr; Ticker ticker; volatile bool ble_is_connected = false; volatile bool button_event = false; const int MAX_ARGS = 8; char *argv[MAX_ARGS]; static const uint8_t SIZEOF_TX_RX_BUFFER = 32; uint8_t rxPayload[SIZEOF_TX_RX_BUFFER] = {0,}; extern "C" void power_on(); extern "C" void power_off(); extern void node_init(); extern void node_tick(); extern void node_parse(int argc, char *argv[]); int button_detect(); void connectionCallback(Gap::Handle_t handle, const Gap::ConnectionParams_t *params) { LOG("Connected\n"); ble_is_connected = true; } void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) { LOG("Disconnected!\n"); LOG("Restarting the advertising process\n"); ble.startAdvertising(); ble_is_connected = false; } void onDataWritten(const GattCharacteristicWriteCBParams *params) { if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle())) { uint16_t bytesRead = params->len; LOG("received %u bytes\n\r", bytesRead); if (bytesRead < sizeof(rxPayload)) { memcpy(rxPayload, params->data, bytesRead); rxPayload[bytesRead] = '\0'; } LOG("%s\n", (char *)rxPayload); char *piece = strtok((char *)rxPayload, " "); int argc = 0; while (piece && argc < MAX_ARGS) { argv[argc++] = piece; piece = strtok(0, " "); } if (argc > 0) { node_parse(argc, argv); } } } void tick(void) { node_tick(); } void button_down(void) { button_event = true; } int main(void) { power_on(); blue = LED_ON; green = LED_ON; #if BUTTON_DOWN button.mode(PullDown); button.rise(button_down); #else button.mode(PullUp); button.fall(button_down); #endif LOG("Initialising the nRF51822\n"); ble.init(); ble.onConnection(connectionCallback); ble.onDisconnection(disconnectionCallback); ble.onDataWritten(onDataWritten); /* setup advertising */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)"NODE", sizeof("NODE")); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); DFUService dfu(ble); UARTService uartService(ble); uartServicePtr = &uartService; ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ ble.startAdvertising(); node_init(); ticker.attach(tick, 1); blue = LED_OFF; green = LED_OFF; while (true) { if (button_event) { int click; green = LED_ON; click = button_detect(); green = LED_OFF; LOG("click type: %d\n\r", click); button_event = false; if (1 == click) { } else if (2 == click) { //green = LED_ON; } else if (-1 == click) { green = LED_OFF; blue = LED_OFF; while (BUTTON_DOWN == button.read()) { } nrf_delay_us(3000); power_off(); } else { continue; } } else { ble.waitForEvent(); } } } int button_detect(void) { int t = 0; while (1) { if (button.read() != BUTTON_DOWN) { if (t < 30) { return 0; // for anti shake } else { break; } } if (t > 30000) { // More than 3 seconds return -1; // long click } t++; nrf_delay_us(100); } if (t > 4000) { // More than 0.4 seconds return 1; // single click } while (true) { if (button.read() == BUTTON_DOWN) { nrf_delay_us(1000); if (button.read() == BUTTON_DOWN) { return 2; // double click } t += 10; } if (t > 4000) { return 1; // The interval of double click should less than 0.4 seconds, so it's single click } t++; nrf_delay_us(100); } }