static void
PtInternalTransmit (BRFPacket * pkg)
{
/* update the sequence */
if (sequence_seed == 0)
return;
/* turn on redLED for TX indication */
vLedSetRed (1);
/* disable receive mode */
nRFCMD_CE (0);
/* wait in case a packet is currently received */
vTaskDelay (3 / portTICK_RATE_MS);
/* set TX mode */
nRFAPI_SetRxMode (0);
if (pkg->mac == 0xffff)
rf_sent_broadcast++;
else
rf_sent_unicast++;
pkg->sequence = sequence_seed + (xTaskGetTickCount () / portTICK_RATE_MS);
/* update crc */
pkg->crc =
PtSwapLong (crc32
((unsigned char *) pkg, sizeof (*pkg) - sizeof (pkg->crc)));
/* encrypt the data */
shuffle_tx_byteorder ((unsigned long *) pkg, sizeof (*pkg) / sizeof (long));
xxtea_encode ((long *) pkg, sizeof (*pkg) / sizeof (long));
shuffle_tx_byteorder ((unsigned long *) pkg, sizeof (*pkg) / sizeof (long));
/* upload data to nRF24L01 */
//hex_dump((unsigned char *) pkg, 0, sizeof(*pkg));
nRFAPI_TX ((unsigned char *) pkg, sizeof (*pkg));
/* transmit data */
nRFCMD_CE (1);
/* wait till packet is transmitted */
vTaskDelay (3 / portTICK_RATE_MS);
/* switch to RX mode again */
nRFAPI_SetRxMode (1);
/* turn off red TX indication LED */
vLedSetRed (0);
}
static void
nRF_tx (uint8_t power)
{
/* encrypt data */
xxtea_encode (g_Beacon.block, XXTEA_BLOCK_COUNT, xxtea_key);
/* set TX power */
nRFAPI_SetTxPower (power & 0x3);
/* upload data to nRF24L01 */
nRFAPI_TX (g_Beacon.byte, sizeof (g_Beacon));
/* transmit data */
nRFCMD_CE (1);
/* wait for packet to be transmitted */
pmu_sleep_ms (2);
/* transmit data */
nRFCMD_CE (0);
}
signed char sendBeacon( ob_data* block )
{
unsigned int i=0;
unsigned long crc;
ob_switchRXMode();
if( nRFAPI_CarrierDetect()!=STATUS_CD ) {
ob_switchTXMode();
crc = env_crc16(block->payload, sizeof(block->payload) );
block->crc = swapshort(crc);
// upload data to nRF24L01
nRFAPI_TX((unsigned char*)block, sizeof(ob_data) );
// transmit data
nRFLL_CE(1);
increment(ob_int_mgmt.tx_beacons, 4);
return 0;
}
increment(ob_int_mgmt.fail_tx_beacons, 4);
return -1;
}
