This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

IWR1642: Connection issue with several IWR1642s.

Part Number: IWR1642

Hi,

I've used several IWR1642s to collect radar data, but I'm having a problem with connecting the devices.

I have total 6 IWR1642 and they are mounted on my lab's car.

Now I've tried to connect each radar to the computer in the car.

When the first time I connected one radar(front center) by USB port, I could see and visualize the point cloud that was coming from the radar using my python code.

After that, to test another radar, I removed the connected one and connected the other one(rear center).

The problem is that after connecting the other radar(rear center), I couldn't see any data coming from the radar and when I tried to read data, there was no response.

From this point, I couldn't connect every radars(I also tried to reconnect the first one(front center) and see the data but it didn't work).

Could you give me any idea to solve this problem?

I'll attach my configuration below.

% ***************************************************************
% Created for SDK ver:03.05
% Created using Visualizer ver:3.5.0.0
% Frequency:77
% Platform:xWR16xx
% Scene Classifier:best_range_res
% Azimuth Resolution(deg):15
% Range Resolution(m):0.044
% Maximum unambiguous Range(m):9.02
% Maximum Radial Velocity(m/s):1
% Radial velocity resolution(m/s):0.13
% Frame Duration(msec):100
% RF calibration data:None
% Range Detection Threshold (dB):15
% Doppler Detection Threshold (dB):15
% Range Peak Grouping:enabled
% Doppler Peak Grouping:enabled
% Static clutter removal:disabled
% Angle of Arrival FoV: Full FoV
% Range FoV: Full FoV
% Doppler FoV: Full FoV
% ***************************************************************
sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 3 0
adcCfg 2 1
adcbufCfg -1 0 1 1 0
profileCfg 0 77 429 7 57.14 0 0 70 1 256 5209 0 0 30
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
frameCfg 0 1 16 0 100 1 0
lowPower 0 1
guiMonitor -1 1 1 0 0 0 1
cfarCfg -1 0 2 8 4 3 0 15 1
cfarCfg -1 1 0 4 2 3 1 15 1
multiObjBeamForming -1 1 0.5
clutterRemoval -1 0
calibDcRangeSig -1 0 -5 8 256
extendedMaxVelocity -1 0
bpmCfg -1 0 0 1
lvdsStreamCfg -1 0 0 0
compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
measureRangeBiasAndRxChanPhase 0 1.5 0.2
CQRxSatMonitor 0 3 5 121 0
CQSigImgMonitor 0 127 4
analogMonitor 0 0
aoaFovCfg -1 -90 90 -90 90
cfarFovCfg -1 0 0 8.92
cfarFovCfg -1 1 -1 1.00
calibData 0 0 0
sensorStart
If you need more information, please let me know.
Thank you.