AWR2243: The advance chirp function

Liu Hao

Part Number: AWR2243

Hi all

I want to increase the chirp start frequency of every chirp in a frame by a fix step.

for example. the start frequency of first chirp is 77GHz, the second is 77G+1MHz, the third is 77G+2MHz and the 128 chirp is 77G+128MHz

So i use the advance chirp function to do this just as below

But if i call the" MMWL_advChirpConfig " and only config the

CHIRP_FREQ_START_VAR

(Chirp Param Idx = 1)

Then the chip will report errors ，the error code is 311

This error means

So if i want to use "Advance chirp config" function,do i need config all the Chirp Param Idxs from 0 to 9?

Thanks

over 2 years ago

0 Saswat Kumar over 2 years ago

TI__Mastermind 35345 points

Hello Liu,

Let me check this and get back to you.

Regards,
Saswat Kumar

0 Saswat Kumar over 2 years ago

TI__Mastermind 35345 points

Hello Liu,

Let me check this and get back to you.

Regards,
Saswat Kumar

0 Ken Zhang over 2 years ago

TI__Expert 3405 points

Hi Liu

Could you check the API call sequence in mmwave_studio_03_00_00_14\mmWaveStudio\Scripts\Advanced_Chirp_Example.lua?

It is an Advanced chirp implementation demo LUA scripts.

And Yes, you need to call Chirp Param Idxs from 0 to 9 according to that LUA (as we call ar1.AdvChirpConfig in lua for 10 times).

Thanks

Ken

0 Saswat Kumar over 2 years ago in reply to Ken Zhang

TI__Mastermind 35345 points

Hello Liu,

Also looks like what you are trying to implement, the parameters are not correct.
Could you first please refer the section 11.2 Advanced chirp configuration in document mmwave_dfp_02_02_04_00\docs\mmwave_dfp_user_guide.pdf
This has the proper explanation of the parameters for your reference, it should provide a good understanding.

Regards,
Saswat Kumar

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AWR2243: The advance chirp function