this is implement of uart adxl345 ble nrf51
Dependencies: BLE_API adxl345 mbed nRF51822
Fork of ADXL345_HelloWorld by
Diff: main.cpp
- Revision:
- 1:cfb4bb8f33e9
- Parent:
- 0:9e92575dece6
- Child:
- 2:89f008ca5911
diff -r 9e92575dece6 -r cfb4bb8f33e9 main.cpp --- a/main.cpp Tue Aug 03 08:31:00 2010 +0000 +++ b/main.cpp Thu Dec 07 06:31:23 2017 +0000 @@ -1,14 +1,68 @@ +#include "mbed.h" +#include "ble/BLE.h" +#include "ble/services/UARTService.h" +#include "Serial.h" #include "ADXL345.h" +#include "mbed.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 */ + +BLEDevice ble; +DigitalOut led1(LED1); +Serial uart1(USBTX,USBRX); +UARTService *uartServicePtr; +ADXL345 accelerometer(p5, p6, p7, p8); // (SDA, SDO, SCL, CS); + +uint8_t sFlag = 0; -ADXL345 accelerometer(p5, p6, p7, p8); -Serial pc(USBTX, USBRX); +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + DEBUG("Disconnected!\n\r"); + DEBUG("Restarting the advertising process\n\r"); + ble.startAdvertising(); +} + +void connectionCallback(const Gap::ConnectionCallbackParams_t *params) { + + DEBUG("Connected!\n\r"); + +} + + +uint8_t b[40]={'a','d','q','w'}; +void onDataWritten1(const GattWriteCallbackParams *params) +{ + + + if ((uartServicePtr != NULL) && (params->handle == uartServicePtr->getTXCharacteristicHandle())) { + uint16_t bytesRead = params->len; + DEBUG("received %u bytes %s\n\r", bytesRead,params->data); + // if(sFlag == 1) + // ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)b/*params->data*/, 4/*bytesRead*/); + } +} + + +void periodicCallback(void) +{ + led1 = !led1; + +} + int main() { int readings[3] = {0, 0, 0}; - pc.printf("Starting ADXL345 test...\n"); - pc.printf("Device ID is: 0x%02x\n", accelerometer.getDevId()); + uart1.printf("Starting ADXL345 test...\n"); + uart1.printf("Device ID is: 0x%02x\n", accelerometer.getDevId()); //Go into standby mode to configure the device. accelerometer.setPowerControl(0x00); @@ -21,15 +75,42 @@ //Measurement mode. accelerometer.setPowerControl(0x08); + + led1 = 1; + uart1.baud(9600); + Ticker ticker; + ticker.attach(periodicCallback, 1); + + DEBUG("Initialising the nRF51822\n\r"); + ble.init(); + ble.onDisconnection(disconnectionCallback); + ble.onConnection(connectionCallback); + ble.onDataWritten(onDataWritten1); + + /* 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(1000); /* 1000ms; in multiples of 0.625ms. */ + ble.startAdvertising(); + + UARTService uartService(ble); + uartServicePtr = &uartService; while (1) { - + ble.waitForEvent(); wait(0.1); - accelerometer.getOutput(readings); //13-bit, sign extended values. - pc.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]); + uart1.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]); + ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[0]/*params->data*/, sizeof(readings),false/*bytesRead*/); + ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[1]/*params->data*/, sizeof(readings),false/*bytesRead*/); + ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[2]/*params->data*/, sizeof(readings),false/*bytesRead*/); }