enter code hereHi guys I have managed to program an example BLE_Serial program into the nrf51822 but I cannot see anything coming out from the TX and RX ? Please guide me on what I might be doing wrong.
I have loaded the s130 v1.0 softdevice and then this sample program using BMProbe.
I'm using a real term serial software.
baud rate is 9600/no parity/8 bits/1bit- stop bit/none for hardware flow control.
Here's the sample program I've used.
BLE_Serial.inoWhen I sniff the BLE it's named TXRX.
When I connect to the nrf_connect its BLE_Serial.
But I don't see anything coming out from serial port in my computer? Please help on what can be done? nrf51822 - P3 - RXD and P4 - TXD.
Please let me know for any mods that needs to be done over the above program to see any data coming out of serial port in my real term software?
Many thanks naren0909
P.S I have also tried using a logic analyser to see if there's anything but I see nothing. =( Please check the attachments. thx
/*
* Copyright (c) 2016 RedBear
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <BLE_API.h>
#define DEVICE_NAME "BLE Serial"
#define TXRX_BUF_LEN 20
BLE ble;
Timeout timeout;
static uint8_t rx_buf[TXRX_BUF_LEN];
static uint8_t rx_buf_num;
static uint8_t rx_state=0;
// The uuid of service and characteristics
static const uint8_t service1_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
static const uint8_t service1_tx_uuid[] = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
static const uint8_t service1_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 tx_value[TXRX_BUF_LEN] = {0,};
uint8_t rx_value[TXRX_BUF_LEN] = {0,};
// Create characteristic and service
GattCharacteristic characteristic1(service1_tx_uuid, tx_value, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE );
GattCharacteristic characteristic2(service1_rx_uuid, rx_value, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
GattCharacteristic *uartChars[] = {&characteristic1, &characteristic2};
GattService uartService(service1_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *));
void disconnectionCallBack(const Gap::DisconnectionCallbackParams_t *params) {
ble.startAdvertising();
}
void gattServerWriteCallBack(const GattWriteCallbackParams *Handler) {
uint8_t buf[TXRX_BUF_LEN];
uint16_t bytesRead, index;
if (Handler->handle == characteristic1.getValueAttribute().getHandle()) {
ble.readCharacteristicValue(characteristic1.getValueAttribute().getHandle(), buf, &bytesRead);
for(index=0; index<bytesRead; index++) {
Serial.write(buf[index]);
}
}
}
void m_uart_rx_handle() {
//update characteristic data
ble.updateCharacteristicValue(characteristic2.getValueAttribute().getHandle(), rx_buf, rx_buf_num);
memset(rx_buf, 0x00,20);
rx_state = 0;
}
void uart_handle(uint32_t id, SerialIrq event) {
// Serial rx IRQ
if(event == RxIrq) {
if (rx_state == 0) {
rx_state = 1;
timeout.attach_us(m_uart_rx_handle, 100000);
rx_buf_num=0;
}
while(Serial.available()) {
if(rx_buf_num < 20) {
rx_buf[rx_buf_num] = Serial.read();
rx_buf_num++;
}
else
Serial.read();
}
}
}
void setup() {
// put your setup code here, to run once
Serial.begin(9600);
Serial.attach(uart_handle);
ble.init();
ble.onDisconnection(disconnectionCallBack);
ble.onDataWritten(gattServerWriteCallBack);
// setup adv_data and srp_data
ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
(const uint8_t *)"TXRX", sizeof("TXRX") - 1);
ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
(const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid_rev));
// set adv_type
ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
// add service
ble.addService(uartService);
// set device name
ble.setDeviceName((const uint8_t *)DEVICE_NAME);
// set tx power,valid values are -40, -20, -16, -12, -8, -4, 0, 4
ble.setTxPower(4);
// set adv_interval, 100ms in multiples of 0.625ms.
ble.setAdvertisingInterval(160);
// set adv_timeout, in seconds
ble.setAdvertisingTimeout(0);
// start advertising
ble.startAdvertising();
}
void loop() {
// put your main code here, to run repeatedly:
ble.waitForEvent();
}
