AFE4960EVM: AFE4960

Vladimir Gomon

Prodigy 90 points

Part Number: AFE4960EVM

Hi, I have a question regarding script 19_ECG & RESP+SPO2.py in AFE4960EVM Bio-sensing software:

1. How is it possible to have:

a - COUNT_RAC = 160 --> f = 128000/160 = 800Hz --> 5x250us TS in each RAC

b - REG_NUM_TS = 4 --> 5 TS

c - TS0 - ECG, TS1 - BioZ, TS-2 - PPG, TS-3 - PPG, TS-4 - dummy

and in the same time NUM_PH_PSAW1 = 4?

2. How is it possible to get data rate 819.2 Hz when RAC frequency = 800Hz?

Please contact me via email, I will explain more thoroughly.

Regards

Vladimir

over 2 years ago

0 Stuart McCutchen over 2 years ago

TI__Prodigy 560 points

Hi Vladimir,

Please let us get back to by the end of the week. There is some testing we need to do to verify our response.

Kind regards,

Stuart

0 Vladimir Gomon over 1 year ago in reply to Stuart McCutchen

Prodigy 90 points

Hi Stuart. Any issues?

Regards

Vladimir

0 Stuart McCutchen over 1 year ago in reply to Vladimir Gomon

TI__Prodigy 560 points

Hi Vladimir,

Sorry for the delayed response, it has been holiday in the US. Thanks for bringing this to our attention. We are looking into these questions in more detail, particularly question 2, and are evaluating our device further to ensure an accurate response.

Kind regards,

Stuart

0 Vladimir Gomon over 1 year ago in reply to Stuart McCutchen

Prodigy 90 points

Hi Stuart!
Meanwhile would you please explain me the logics of question 1? How are PPG phases defined? I see similar logics in other scetches with SPO2 but can not understand it.
With regards

Vladimir

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AFE4960EVM: AFE4960