RE: How can I recieve nRF51822 Rx data?

charlie — Mon, 30 Mar 2015 03:29:08 GMT

what's the usage of * p_nus? thank you!

RE: How can I recieve nRF51822 Rx data?

GunMin — Wed, 14 Jan 2015 03:58:08 GMT

That was very helpful, thank you.

RE: How can I recieve nRF51822 Rx data?

FormerMember — Tue, 13 Jan 2015 16:47:42 GMT

From what I can see, you are using the experimental_ble_app_uart example?

The data will be received in a BLE event. Data written to the RX characteristic will be handled in ble_nus_on_ble_evt -> BLE_GATTS_EVT_WRITE -> on_write(..) -> p_nus->data_handler.

p_nus->data_handler is set in services_init(..): nus_init.data_handler = nus_data_handler;

nus_data_handler(..) will transfer the received data over UART (to a terminal):

/**@brief    Function for handling the data from the Nordic UART Service.
 *
 * @details  This function will process the data received from the Nordic UART BLE Service and send
 *           it to the UART module.
 */
/**@snippet [Handling the data received over BLE] */
void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
    for (int i = 0; i < length; i++)
    {
        simple_uart_put(p_data[i]);
    }
    simple_uart_put('\n');
}