AWRL6432: [AWRL6432]how to change 2Tx / 3Rx to 1Tx/1Rx

JINHYUN JEONG

Part Number: AWRL6432

Hi There,

i am trying to change radar channel 2tx/3rx To 1tx/1rx on motion_and_presence_detection_demo to reduce power consumption.

In order to turn off radar channel , i find some method and

1. channelCfg : Change <RxChCtrlBitMask> <TxChCtrlBitMask>

--> in addition to changing channelCfg value,

(Q1) i tried to find firmware code that change radar channel register bit. please let me know firmware code.

(Q2) is it associated with FEC_LSTC , FEC_PCR1_ FEC_ECC_AGG register? i don't have information of FEC register. (Front-end Controller)

2. ADCbufconfig --> APP_HWA_ADCBUF_CTRL register

(Q3) i wonder if there are other methods except above method.

(Q4) should MCU have a reset for operating 1tx / 1rx channel after 2tx/3Rx operation ?

please share your opinion.

9 months ago

0 Clinton Rodgers 9 months ago

TI__Genius 13215 points

Hi,

You should be able to do this through the cfg file, like you mentioned. There is an example in the location listed below for this configuration. Please let us know if you still have follow up after trying this out.

<sdk intall dir>\MMWAVE_L_SDK_05_03_00_02\examples\mmw_demo\motion_and_presence_detection\profiles\xwrL64xx-evm\MotionDetect_1TX-1RX.cfg

Thanks,

Clinton

0 JINHYUN JEONG 9 months ago

Prodigy 200 points

Hello,

i can understand cfg method by comparing MotionDetect_1TX-1RX.cfg and MotionDetect_2TX-3RX.cfg.

but, please share your opinon about question1 , 2, 3, 4

(Q1) finding firmware code that change randar channel register.

(Q2) Information of FEC register.

(Q4)"Important" Should MCU have a reset for operating 1tx / 1rx channel after 2tx/3Rx operation ?

Thank you !

Have a nice day.

0 JINHYUN JEONG 9 months ago in reply to JINHYUN JEONG

Prodigy 200 points

i look forward to hearing your answer.

0 JINHYUN JEONG 9 months ago

Prodigy 200 points

i look forward to hearing your answer.....

0 Clinton Rodgers 9 months ago in reply to JINHYUN JEONG

TI__Genius 13215 points

Hi,

I wanted to let you know I am coming back to this and will provide feedback in the next day or two.

Thanks,

Clinton

0 Clinton Rodgers 9 months ago in reply to Clinton Rodgers

TI__Genius 13215 points

Hi,

Have you checked the firmware documentation? It can be found at the location below.

<sdk install directory>/MMWAVE_L_SDK_05_04_00_xx/firmware/mmwave_dfp/docs/mmwave_dfp_low_api_documentation/index.html

I'm not sure the exact information you are looking for with those FEC registers, but there is additional information in the Technical Reference Manual found at this link:

https://www.ti.com/lit/pdf/swru599

I will follow up on what steps need to be taken when swapping between those antenna modes of operation.

Thanks,

Clinton

0 JINHYUN JEONG 9 months ago in reply to Clinton Rodgers

Prodigy 200 points

Hello,

i will check the firmware dcocumentation. Thank you so much for letting me konw.

And i am looking forward to your opinon of swapping

Thanks

Best regards

JINHYUN JEONG

0 Clinton Rodgers 9 months ago in reply to JINHYUN JEONG

TI__Genius 13215 points

Hi,

If you load the 1TX-1RX cfg, the steps necessary to run in this configuration will be taken care of and you will be operating in this way. If you would like the device to come up already with this configuration, you could try following the steps to use it as a hard coded cfg. We have a guide in our Radar Toolbox on TI Resource Explorer that provides the steps to do this. I've directly linked the guide below.

https://dev.ti.com/tirex/content/radar_toolbox_1_30_01_03/source/ti/examples/Fundamentals/Hard_Coded_Config/docs/hard_coded_config_user_guide.html

Thanks,

Clinton

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AWRL6432: [AWRL6432]how to change 2Tx / 3Rx to 1Tx/1Rx