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4 RX Real 3 RX Real 2 RX Real
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Raw Data Format of Capture Demo Using CCS
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SWRA581B–December 2017–Revised October 2018
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Mmwave Radar Device ADC Raw Data Capture
4 Raw Data Format of Capture Demo Using CCS
Data captured using the Capture Demo can be stored in interleaved or non-interleaved mode, as specified
by the adcbufCfg command in the sensor configuration. For xWR14xx devices, interleaved mode is
recommended but non-interleaved mode can also be used. For xWR16xx/IWR6843 devices only non-
interleaved mode can be used. By default the xWR14xx is configured for interleaved mode and the
xWR16xx/IWR6843 is configured for non-interleaved mode. For more information about interleaving, see
the AWR1xxx Data Path Programmer's Guide programmer’s guide. Data is stored in a 16-bit, two's-
complement format.
Figure 4 shows the output data for interleaved mode with complex data for 4 RX, 3 RX, and 2 RX
antennas..
Figure 4. Interleaved Complex Data Format Using Capture Demo
Figure 4 represents how the data is saved when using 16-bit Hex – TI Style when the file is saved as a TI
data format file. In Figure 4, RX0 I(0) represents the first sample of real data received at RX0, and RX0
Q(0) represents the first sample of imaginary data received at RX0. RX0 I(1) represents the second
sample of real data received at RX0, and so on.
Data can also be captured as real data only. Figure 5 shows how the data is saved for interleaved mode
with real data for 4 RX, 3 RX, and 2 RX antennas.
Figure 5. Interleaved Real Data Format Using Capture Demo