AWR1243: Advance chirp configuration issue

Wesley He

Expert 6075 points

Part Number: AWR1243

Hi team,

Could you please provide a guidance to set the advance chirp shown below?

Is it available on AWR1243?

Thanks for your help.

Regards,

Wesley

over 5 years ago

0 Jitendra Gupta over 5 years ago

TI__Guru 68180 points

Hi Wesley,

Assuming there are 3-subFrames in this snapshot (subFrame0 : Tx0, SF1:Tx1, SF2:Tx2).

First, you need to invoke rlSetProfileConfig for profileId=0,1,2 and with other parameters being set.

Then you need to invoke rlSetChirpConfig (or rlSetMultiChirpCfg) with these parameter strctures

[chirpStartIdx=0, chirpEndIdx=127, profileId=0, txEnable=1;] [chirpStartIdx=128, chirpEndIdx=143, profileId=1, txEnable=1]

[chirpStartIdx=144, chirpEndIdx=271, profileId=0, txEnable=2;] [chirpStartIdx=272, chirpEndIdx=287, profileId=1, txEnable=2]

[chirpStartIdx=288, chirpEndIdx=415, profileId=0, txEnable=4;] [chirpStartIdx=416, chirpEndIdx=431, profileId=1, txEnable=4]

Here are the AdvFrame parameter structure with the chirp combination.

const rlAdvFrameCfg_t advFrameCfg =
{
.frameSeq.numOfSubFrames = 3,
.frameSeq.forceProfile = 0,
.frameSeq.loopBackCfg = 0,
.frameSeq.subFrameTrigger = 0,

.frameSeq.subFrameCfg[0].forceProfileIdx = 0,
.frameSeq.subFrameCfg[0].chirpStartIdx = 0,
.frameSeq.subFrameCfg[0].numOfChirps = 128+16,
.frameSeq.subFrameCfg[0].numLoops = 1,
.frameSeq.subFrameCfg[0].burstPeriodicity = 6000000, /* change it as needed */
.frameSeq.subFrameCfg[0].chirpStartIdxOffset = 0,
.frameSeq.subFrameCfg[0].numOfBurst = 1,
.frameSeq.subFrameCfg[0].numOfBurstLoops = 1,
.frameSeq.subFrameCfg[0].reserved1 = 0,
.frameSeq.subFrameCfg[0].subFramePeriodicity = 6020000, /* change it as per burstPeriodicity */
.frameSeq.subFrameCfg[0].reserved2 = 0,
.frameSeq.subFrameCfg[0].reserved3 = 0,

.frameSeq.subFrameCfg[1].forceProfileIdx = 0,
.frameSeq.subFrameCfg[1].chirpStartIdx = 144;
.frameSeq.subFrameCfg[1].numOfChirps = 128+16,
.frameSeq.subFrameCfg[1].numLoops = 1,
.frameSeq.subFrameCfg[1].burstPeriodicity = 4000000, /* change it as needed */
.frameSeq.subFrameCfg[1].chirpStartIdxOffset = 0,
.frameSeq.subFrameCfg[1].numOfBurst = 1,
.frameSeq.subFrameCfg[1].numOfBurstLoops = 1,
.frameSeq.subFrameCfg[1].reserved1 = 0,
.frameSeq.subFrameCfg[1].subFramePeriodicity = 4000000, /* change it as per burstPeriodicity */
.frameSeq.subFrameCfg[1].reserved2 = 0,
.frameSeq.subFrameCfg[1].reserved3 = 0,

.frameSeq.subFrameCfg[2].forceProfileIdx = 0,
.frameSeq.subFrameCfg[2].chirpStartIdx = 288,
.frameSeq.subFrameCfg[2].numOfChirps = 128+16,
.frameSeq.subFrameCfg[2].numLoops = 1,
.frameSeq.subFrameCfg[2].burstPeriodicity = 4000000, /* change it as needed */
.frameSeq.subFrameCfg[2].chirpStartIdxOffset = 0,
.frameSeq.subFrameCfg[2].numOfBurst = 1,
.frameSeq.subFrameCfg[2].numOfBurstLoops = 1,
.frameSeq.subFrameCfg[2].reserved1 = 0,
.frameSeq.subFrameCfg[2].subFramePeriodicity = 4000000, /* change it as per burstPeriodicity */
.frameSeq.subFrameCfg[2].reserved2 = 0,
.frameSeq.subFrameCfg[2].reserved3 = 0,

.frameSeq.numFrames = 0,
.frameSeq.triggerSelect = 1,
.frameSeq.frameTrigDelay = 0,
.frameSeq.reserved1 = 0,
.frameSeq.reserved2 = 0,

};

You need to test this configuration at your end to verify if parameters are set as expected.

Regards,

Jitendra

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AWR1243: Advance chirp configuration issue