Other Parts Discussed in Thread: IWR6843, IWRL6432, IWRL6432AOP
Tool/software:
Hello
I’m attempting to configure the IWR6843 3D people tracking demo to use only two TX antennas (Tx1 and Tx2). For this, I set the channelCfg as 15 3 0 to enable Tx1 and Tx2, and I define the chirps as follows:
channelCfg 15 3 0
profileCfg 0 60.00 15.00 5.00 45.00 4 0 40.00 0 96 2500 0 0 36
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
frameCfg 0 1 48 0 880.00 1 0
As you can see, I define two chirps (indexes 0 and 1) and assign the respective antennas, and I’ve set up the frame accordingly. However, for some reason, the sensor isn’t starting with this configuration. It only works when I enable all three TX antennas (Tx1, Tx2, and Tx3) as shown here:
channelCfg 15 7 0
profileCfg 0 60.00 15.00 5.00 45.00 4 0 40.00 0 96 2500 0 0 36
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 6
chirpCfg 1 1 0 0 0 0 0 6
frameCfg 0 2 48 0 880.00 1 0
This is the whole configs I send for your reference:
sensorStop\n\
flushCfg\n\
dfeDataOutputMode 1\n\
channelCfg 15 3 0\n\
adcCfg 2 1\n\
adcbufCfg -1 0 1 1 1\n\
lowPower 0 0\n\
bpmCfg -1 1 1 2\n\
profileCfg 0 60.00 15.00 5.00 45.00 4 0 40.00 0 96 2500 0 0 36\n\
chirpCfg 0 0 0 0 0 0 0 1\n\
chirpCfg 1 1 0 0 0 0 0 2\n\
frameCfg 0 1 48 0 880.00 1 0\n\
dynamicRACfarCfg -1 4 4 2 2 8 12 4 12 5.00 8.00 0.40 1 1\n\
staticRACfarCfg -1 6 2 2 2 8 8 6 4 8.00 15.00 0.30 0 0\n\
dynamicRangeAngleCfg -1 0.75 0.0010 1 0\n\
dynamic2DAngleCfg -1 3.0 0.0300 1 0 1 0.30 0.85 8.00\n\
staticRangeAngleCfg -1 0 8 8\n\
fineMotionCfg -1 1 1.0 10 2\n\
antGeometry0 -1 -1 0 0 -3 -3 -2 -2 -1 -1 0 0\n\
antGeometry1 -1 0 -1 0 -3 -2 -3 -2 -3 -2 -3 -2\n\
antPhaseRot 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1\n\
fovCfg -1 70.0 70.0\n\
compRangeBiasAndRxChanPhase 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0\n\
boundaryBox -0.5 2 0.5 3 0 3\n\
staticBoundaryBox -0.5 2 0.5 3 0 3\n\
presenceBoundaryBox -0.5 2 0.5 3 0 3\n\
sensorPosition 1.8 0 0\n\
gatingParam 3 2 2 3 4\n\
stateParam 3 3 12 500 5 600\n\
allocationParam 100 100 0.1 60 0.5 20\n\
maxAcceleration 0.1 0.1 0.1\n\
trackingCfg 1 2 800 4 46 96 55\n\
sensorStart\n";
Can you provide any insights on what might be wrong with the two TX antenna configuration? Thanks in advance.
