use UART Service to loopback anything received on the TX characteristic onto the RX.
Dependencies: BLE_API mbed nRF51822
Fork of BLE_LoopbackUART by
main.cpp
- Committer:
- edwardTW
- Date:
- 2014-09-24
- Revision:
- 8:e35636d40bd2
- Parent:
- 6:e0fc9072e853
File content as of revision 8:e35636d40bd2:
/* 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 "UARTService.h" #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; * it will have an impact on code-size and power consumption. */ #if NEED_CONSOLE_OUTPUT #define DEBUG(...) { printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ #endif /* #if NEED_CONSOLE_OUTPUT */ //======================================================================================= typedef unsigned int uint; typedef unsigned char uchar; //======================================================================================= Serial pc(P0_9,P0_11); BLEDevice ble; Ticker ticker; DigitalOut led1(LED1); void attime(void); void periodicCallback(void); uint TSM,TSMp,TSMf; uchar timer_second; uchar timer_minute; uchar timer_hour; UARTService *uartServicePtr; void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) { DEBUG("Disconnected!\n\r"); DEBUG("Restarting the advertising process\n\r"); ble.startAdvertising(); } void onDataWritten(const GattCharacteristicWriteCBParams *params) { if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle())) { uint16_t bytesRead = params->len; DEBUG("received %s \n\r",params->data); DEBUG("received %u bytes\n\r", bytesRead); ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead); } } void periodicCallback(void) { led1 = !led1; } void attime(void) { TSMp=TSM; TSM++; TSMf|=TSM^TSMp; led1 = !led1; } int main(void) { led1 = 1; // Ticker ticker; ticker.attach(periodicCallback, 0.125); // ticker.attach_us(attime, 2440); pc.baud(115200); DEBUG("Initialising the nRF51822\n\r"); ble.init(); 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 *)"BLE_UART", sizeof("BLE_UART") - 1); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ // ble.setAdvertisingInterval(320); /* 100ms; in multiples of 0.625ms. */ ble.startAdvertising(); UARTService uartService(ble); uartServicePtr = &uartService; while (true) { ble.waitForEvent(); } }