CCS/IWR1443BOOST: basic concepts

user5034373

Part Number: IWR1443BOOST

Tool/software: Code Composer Studio

Hello,

can you tell me the relationship between chirps and frames?

in vital_signs demo, the ADC sampling frequency is 2000kps, right? but the data read from the serial port is 20/s, can you explain that?

thank you~

over 7 years ago

0 Akash Gondalia over 7 years ago

TI__Guru 50240 points

Hello Zhang,

A chirp is a sweep in Frequency and a set of chirps together form a frame which is used as the observation window for radar processing.

The two frequencies you refer to are completely different specs. The ADC sampling frequency is from the Radar Front End but the serial port carries all of the post-processed data from the EVM to your computer over UART.

I'd highly recommend taking a look at the chirp programming guide: www.ti.com/.../swra553.pdf

Cheers,
Akash

0 user5034373 over 7 years ago in reply to Akash Gondalia

Prodigy 250 points

Hi, Akash,

thank you for your reply, and how can I get the raw ADC sanpled data? or in other words, if i want to see the vibrate of 100Hz,how can i adjust the output data frequency?

thanks

Jun

0 Akash Gondalia over 7 years ago in reply to user5034373

TI__Guru 50240 points

Hello Zhang,

I'd recommend looking at the chirp programming guide: www.ti.com/.../swra553.pdf

Let us know if you have more questions.

Cheers,
Akash

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CCS/IWR1443BOOST: basic concepts