Tema SCPI Negru Rares-Razvan
Dependencies: BLE_API mbed nRF51822
Fork of nRF51822_TemperatureEx by
Diff: main.cpp
- Revision:
- 0:cffe8ac1bdf0
- Child:
- 1:1c058e553423
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Oct 31 09:37:18 2014 +0000 @@ -0,0 +1,134 @@ + +#include "mbed.h" +#include "BLEDevice.h" + + +#define BLE_UUID_TXRX_SERVICE 0x0000 /**< The UUID of the Nordic UART Service. */ +#define BLE_UUID_TX_CHARACTERISTIC 0x0002 /**< The UUID of the TX Characteristic. */ +#define BLE_UUIDS_RX_CHARACTERISTIC 0x0003 /**< The UUID of the RX Characteristic. */ + +#define TXRX_BUF_LEN 20 + +BLEDevice ble; + +Serial pc(USBTX, USBRX); + + +// The Nordic UART Service +static const uint8_t uart_base_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_tx_uuid[] = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_rx_uuid[] = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E}; +static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71}; + + +uint8_t txPayload[TXRX_BUF_LEN] = {0,}; +uint8_t rxPayload[TXRX_BUF_LEN] = {0,}; + +static uint8_t rx_buf[TXRX_BUF_LEN]; +static uint8_t rx_len=0; + + +GattCharacteristic txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE); + +GattCharacteristic rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); + +GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic}; + +GattService uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *)); + + + +void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) +{ + pc.printf("Disconnected \r\n"); + pc.printf("Restart advertising \r\n"); + ble.startAdvertising(); +} + +void WrittenHandler(const GattCharacteristicWriteCBParams *Handler) +{ + uint8_t buf[TXRX_BUF_LEN]; + uint16_t bytesRead, index; + + if (Handler->charHandle == txCharacteristic.getValueAttribute().getHandle()) + { + ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead); + memset(txPayload, 0, TXRX_BUF_LEN); + memcpy(txPayload, buf, TXRX_BUF_LEN); + pc.printf("WriteHandler \r\n"); + pc.printf("Length: "); + pc.putc(bytesRead); + pc.printf("\r\n"); + pc.printf("Data: "); + for(index=0; index<bytesRead; index++) + { + pc.putc(txPayload[index]); + } + pc.printf("\r\n"); + } +} + +void uartCB(void) +{ + while(pc.readable()) + { + rx_buf[rx_len++] = pc.getc(); + if(rx_len>=20 || rx_buf[rx_len-1]=='\0' || rx_buf[rx_len-1]=='\n') + { + ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), rx_buf, rx_len); + pc.printf("RecHandler \r\n"); + pc.printf("Length: "); + pc.putc(rx_len); + pc.printf("\r\n"); + rx_len = 0; + break; + } + } +} + +int main(void) +{ + ble.init(); + ble.onDisconnection(disconnectionCallback); + ble.onDataWritten(WrittenHandler); + + pc.baud(9600); + pc.printf("SimpleChat Init \r\n"); + + pc.attach( uartCB , pc.RxIrq); + // setup advertising + ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); + ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, + (const uint8_t *)"Biscuit", sizeof("Biscuit") - 1); + ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, + (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid)); + // 100ms; in multiples of 0.625ms. + ble.setAdvertisingInterval(160); + + ble.addService(uartService); + + ble.startAdvertising(); + pc.printf("Advertising Start \r\n"); + + while(1) + { + ble.waitForEvent(); + } +} + + + + + + + + + + + + + + + +