Exercise 6 BLE UART
Dependencies: BLE_API X_NUCLEO_IDB0XA1 mbed
Fork of BLE_UART_IDB0XA1 by
Diff: main.cpp
- Revision:
- 10:2d4a768ae727
- Parent:
- 9:46f0c7908f89
--- a/main.cpp Tue Apr 25 15:58:11 2017 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,138 +0,0 @@ -/* 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 "ble/BLE.h" -#include "ble/services/UARTService.h" -#include "Serial.h" - -#define UART_BUFFER (UARTService::BLE_UART_SERVICE_MAX_DATA_LEN*10) - -const static char DEVICE_NAME[] = "UART"; -UARTService *uartServicePtr; -static uint8_t uartBuff[UART_BUFFER]; -static uint8_t uartBuffPos=0; - -void onBleError(ble_error_t error); - -DigitalOut led1(LED1); -Serial uart1(USBTX,USBRX); -Ticker ticker; - -#define DEBUG uart1.printf - -/* Ticker */ -void periodicCallback(void) -{ - led1 = !led1; -} - -/* UART */ -void uartRx(void) -{ - if(uart1.readable()){ - uartBuff[uartBuffPos] = uart1.getc(); - if((uartBuff[uartBuffPos] == '\r') || (uartBuff[uartBuffPos] == '\n') || (uartBuffPos >= UART_BUFFER)) { - uartBuff[uartBuffPos] = '\0'; - /* We are sending the whole string even if less than BLE_UART_SERVICE_MAX_DATA_LEN otherwise we need to wait */ - uartServicePtr->write(uartBuff, (uartBuffPos/UARTService::BLE_UART_SERVICE_MAX_DATA_LEN +1) * UARTService::BLE_UART_SERVICE_MAX_DATA_LEN); - DEBUG("TX : %s\r\n", uartBuff); - memset(uartBuff, 0, UART_BUFFER); - uartBuffPos = 0; - } - else - uartBuffPos++; - } -} - - -/* BLE */ -void BleConnectionCallback(const Gap::ConnectionCallbackParams_t *params) { - DEBUG("BLE Client Connected!\n\r"); - DEBUG("Please type a string and press return\r\n"); - - ticker.attach(periodicCallback, 1); -} - -void BleDisconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) -{ - (void)params; - DEBUG("BLE Client Disconnected!\r\n"); - ticker.detach(); - BLE::Instance().gap().startAdvertising(); // restart advertising - led1=0; -} - -void BleOnDataWrittenCallback(const GattWriteCallbackParams *params) { - if (params->handle == uartServicePtr->getTXCharacteristicHandle()){ - DEBUG("RX: %s\r\n", params->data); - } -} - -void onBleError(ble_error_t error) { - DEBUG("BLE Error: %d\r\n"); - /* Handle error now */ -} - -void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) -{ - BLE& ble = params->ble; - ble_error_t error = params->error; - - if (error != BLE_ERROR_NONE) { - /* In case of error, forward the error handling to onBleInitError */ - onBleError(error); - return; - } - - /* Ensure that it is the default instance of BLE */ - if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { - return; - } - - ble.gap().onConnection(BleConnectionCallback); - ble.gap().onDisconnection(BleDisconnectionCallback); - ble.gattServer().onDataWritten(BleOnDataWrittenCallback); - - DEBUG("BLE UARTService: "); - /* Setup primary service. */ - UARTService uartService(ble); - uartServicePtr = &uartService; - DEBUG("Started\r\n"); - - /* setup advertising */ - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); - ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); - ble.gap().setAdvertisingInterval(500); /* 500ms. */ - ble.gap().startAdvertising(); - - while (true) { - ble.waitForEvent(); - } -} - -int main(void) -{ - led1=0; - - uart1.baud(9600); - uart1.attach(uartRx,Serial::RxIrq); - BLE &ble = BLE::Instance(); - ble.init(bleInitComplete); -} -