/**
* @brief Application task handler
*/
static void app_task(void)
{
uint8_t number_of_bytes_to_be_transmitted;
uint8_t stop_data;
if(Wireshark_Settings == INIT_STATE)
{
uint8_t input_channel = sio_getchar();
sniffer_config_select(CHANNEL_SELECT_ID,input_channel);
Wireshark_Settings = SET_START;
}
if(Wireshark_Settings == SET_START)
{
number_of_bytes_to_be_transmitted = sio_getchar();
if(number_of_bytes_to_be_transmitted == 0x01)
{
sniffer_config_select(START_CAPTURE_ID,number_of_bytes_to_be_transmitted);
Wireshark_Settings = WS_RESTART;
sio_rx_data[0] = INIT_VALUE;
}
}
if(Wireshark_Settings == WS_RESTART)
{
number_of_bytes_to_be_transmitted = pal_sio_rx(SIO_CHANNEL, sio_rx_data, 1);
if((number_of_bytes_to_be_transmitted == 1) && (sio_rx_data[0] == 0x02))
{
sio_rx_data[0] = INIT_VALUE;
Wireshark_Settings = INIT_STATE;
stop_data = STOP_CAP;
while((number_of_bytes_to_be_transmitted = pal_sio_tx(SIO_CHANNEL, &stop_data, 1)) !=1);
}
}
}
/**
* @brief Application task
*/
static void app_task(void)
{
uint8_t number_of_bytes_to_be_transmitted;
if (tx_state == TX_IDLE)
{
number_of_bytes_to_be_transmitted = pal_sio_rx(SIO_CHANNEL, sio_rx_data, MAX_APP_DATA_LENGTH);
// If bytes are received via UART/USB, transmit the bytes.
if (number_of_bytes_to_be_transmitted > 0)
{
pal_led(LED_START, LED_TOGGLE); // indicate data processing
tx_state = TX_ONGOING;
tx_buffer[PL_POS_SEQ_NUM]++;
/* Check for maximum allowed IEEE 802.15.4 frame length. */
if (number_of_bytes_to_be_transmitted > aMaxMACSafePayloadSize)
{
number_of_bytes_to_be_transmitted = aMaxMACSafePayloadSize;
}
/* Update mpdu length within frame. */
tx_buffer[0] = number_of_bytes_to_be_transmitted + FRAME_OVERHEAD;
/* Copy MSDU (actual MAC payload) into frame. */
/*
* Note: Usually the MSDU is copied beginning from the end of
* the frame. Since the header is always the same for this
* application, the start of the MSDU is always the same position.
* Therefore the payload copying is done from the beginning.
*/
memcpy(&tx_buffer[LENGTH_FIELD_LEN + FRAME_OVERHEAD - FCS_LEN],
sio_rx_data,
number_of_bytes_to_be_transmitted);
tal_tx_frame(tx_buffer, CSMA_UNSLOTTED, true);
}
}
else if (tx_state == TX_RETRY)
{
tx_state = TX_ONGOING;
/* Retransmit the previous frame until frame transmission was successful. */
tal_tx_frame(tx_buffer, CSMA_UNSLOTTED, true);
}
}