unsigned char recvBeacon( ob_data* block ) {
unsigned long crc;
unsigned char ret=0, status;
ob_switchRXMode();
if((AT91F_PIO_GetInput(AT91C_BASE_PIOA)&IRQ_PIN)==0)
{
portENTER_CRITICAL();
status=nRFAPI_GetStatus();
if(status&MASK_RX_DR_FLAG ) {
ret=nRFAPI_RX((unsigned char*)block, sizeof(ob_data) );
if(ret>0) {
// CRC Check
crc = env_crc16(block->payload, sizeof(block->payload) );
if(block->crc == swapshort(crc)) {
increment(ob_int_mgmt.rx_beacons, 4);
} else {
increment(ob_int_mgmt.fail_rx_beacons, 4);
ret=0;
}
}
nRFAPI_FlushRX();
}
nRFAPI_ClearIRQ(status);
portEXIT_CRITICAL ();
}
return ret;
}
uint8_t
nRFAPI_DetectChip (void)
{
uint8_t mac[NRF_MAX_MAC_SIZE], i;
// blank read
nRFAPI_GetStatus ();
// set dummy MAC size
nRFAPI_SetSizeMac (NRF_MIN_MAC_SIZE);
// verify dummy MAC size
if (nRFAPI_GetSizeMac () != NRF_MIN_MAC_SIZE)
return 0;
// set dummy MAC size
nRFAPI_SetSizeMac (NRF_MAX_MAC_SIZE);
// verify dummy MAC size
if (nRFAPI_GetSizeMac () != NRF_MAX_MAC_SIZE)
return 0;
// set dummy MAC
nRFAPI_SetTxMAC (rfbroadcast_mac, NRF_MAX_MAC_SIZE);
// get dummy MAC
memset (&mac, 0, sizeof (mac));
nRFAPI_GetTxMAC (mac, NRF_MAX_MAC_SIZE);
// if can't verify written MAC - return with error
for (i = 0; i < NRF_MAX_MAC_SIZE; i++)
if (mac[i] != rfbroadcast_mac[i])
return 0;
// everything is fine
return 1;
}
unsigned char nRFAPI_GetPipeCurrent(void)
{
return (nRFAPI_GetStatus()>>1) & 0x7;
}
uint8_t
nRFAPI_GetPipeCurrent (void)
{
return (nRFAPI_GetStatus () >> 1) & 0x7;
}
char isFinishTransmit() {
return (nRFAPI_GetStatus()&STATUS_TX_DS)==STATUS_TX_DS;
}