Hi,
I am using the ble_app_uart_c example for the ble_central of SDK 12.2.0 to send data over UART to a nrf52832 based peripheral. When following the format as suggested in the example everything appears to be working fine (terminate data to be sent with \n). I sucessfully sent commands with 60 bytes and \n terminated spread across 3 BLE packets at 20 bytes payload each.
However, when commenting out the section that tests for \n or size>20 bytes my code stops working (see attached code snippet). I am basically trying to force sending each individual byte, not only when certain conditions are met. When sending small amounts (less than 5 bytes) it still works ok, but when sending more than 5 bytes the code seems to be stuck at line "while (ble_nus_c_string_send(&m_ble_nus_c, data_array, index) != NRF_SUCCESS)" and I am struggling to find out why. Could someone please point me in the right direction?
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint8_t index = 0;
switch (p_event->evt_type)
{
/**@snippet [Handling data from UART] */
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
//if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
//{
while (ble_nus_c_string_send(&m_ble_nus_c, data_array, index) != NRF_SUCCESS)
{
// repeat until sent.
}
index = 0;
//}
break;
/**@snippet [Handling data from UART] */
case APP_UART_COMMUNICATION_ERROR:
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
