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this profile using UART with ADXL335 accelerometer, but this is can't reach accelerometer sensor.. please help me to fix it
Dependencies: BLE_API mbed nRF51822
Fork of UART_ADXL335 by
Diff: main.cpp
- Revision:
- 5:4bc41267a03a
- Parent:
- 2:e060367b9024
- Child:
- 6:e0fc9072e853
diff -r 98e3d2aa66de -r 4bc41267a03a main.cpp --- a/main.cpp Fri Jun 13 12:13:02 2014 +0000 +++ b/main.cpp Tue Sep 02 16:32:58 2014 +0000 @@ -21,7 +21,7 @@ #define BLE_UUID_NUS_TX_CHARACTERISTIC 0x0002 /**< The UUID of the TX Characteristic. */ #define BLE_UUID_NUS_RX_CHARACTERISTIC 0x0003 /**< The UUID of the RX Characteristic. */ -#define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console; +#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 @@ -39,30 +39,34 @@ static const uint8_t uart_tx_uuid[] = {0x6e, 0x40, 0x00, 0x02, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e}; static const uint8_t uart_rx_uuid[] = {0x6e, 0x40, 0x00, 0x03, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e}; static const uint8_t uart_base_uuid_rev[] = {0x9e, 0xca, 0xdc, 0x24, 0x0e, 0xe5, 0xa9, 0xe0, 0x93, 0xf3, 0xa3, 0xb5, 0x01, 0x00, 0x40, 0x6e}; -uint8_t txPayload[8] = {0,}; -uint8_t rxPayload[8] = {0,}; -GattCharacteristic txCharacteristic (uart_tx_uuid, txPayload, 1, 8, + +static const uint8_t SIZEOF_TX_RX_BUFFER = 128; +uint8_t rxPayload[SIZEOF_TX_RX_BUFFER] = {0,}; +uint8_t txPayload[SIZEOF_TX_RX_BUFFER] = {0,}; +GattCharacteristic rxCharacteristic (uart_tx_uuid, rxPayload, 1, SIZEOF_TX_RX_BUFFER, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE); -GattCharacteristic rxCharacteristic (uart_rx_uuid, rxPayload, 1, 8, - GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); -GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic}; +GattCharacteristic txCharacteristic (uart_rx_uuid, txPayload, 1, SIZEOF_TX_RX_BUFFER, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); +GattCharacteristic *uartChars[] = {&rxCharacteristic, &txCharacteristic}; GattService uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *)); -void disconnectionCallback(void) +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(uint16_t charHandle) +void onDataWritten(uint16_t charHandle, const GattCharacteristicWriteCBParams *params) { - if (charHandle == txCharacteristic.getHandle()) { - DEBUG("onDataWritten()\n\r"); - uint16_t bytesRead; - ble.readCharacteristicValue(txCharacteristic.getHandle(), txPayload, &bytesRead); - DEBUG("ECHO: %s\n\r", (char *)txPayload); - ble.updateCharacteristicValue(rxCharacteristic.getHandle(), txPayload, bytesRead); + if (charHandle == rxCharacteristic.getValueAttribute().getHandle()) { + uint16_t bytesRead = params->len; + DEBUG("received %u bytes\n\r", bytesRead); + if (bytesRead < sizeof(rxPayload)) { + memcpy(rxPayload, params->data, bytesRead); + rxPayload[bytesRead] = 0; + } + DEBUG("ECHO: %s\n\r", (char *)rxPayload); + ble.updateCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), rxPayload, bytesRead); } }