UMX FLIP Installation Guide download pdf (Page 40)

} while (FALSE);

SoraFSMGotoState(StateMachine, Dot11_MAC_CS);

return;

}

Figure 16. Waveform transmission and cleanup.

3.4 Reception

The RX channel of a radio is enabled by SORA_HW_ENABLE_RX. The SDR driver can read the RX

channel through an RX_STREAM object. The SDR driver can obtain a RX_STREAM object by

calling SoraRadioGetRxStream. The RX channel of a radio is organized as a stream of signal

blocks. Each signal block contains an array of 28 complex I/Q samples. The I or Q component are

both 16-bit long. Figure 17 shows the structure of a signal block. Function

SoraRadioReadRxStream loads a signal block into memory. It is blocking function that will not

return until a full signal block is delivered from the RCB (or timeout). The pbTouched flag is set

when the returned signal block is the last block in the RX channel, ie. the most recently received

signal block. The SDR driver can use SoraRadioGetRxStreamPos to obtain the current position of

the RX channel, and use SoraRadioSetRxStreamPos to change the current position of the RX

channel.

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UMX FLIP Installation Guide Page 40