tree d99d4cbd620ad772c5af8b1a8c32e4717f6107e2
parent b72141cb8a655c4c8516551e72d0ae0ec78fab0e
author Mateusz Urbańczyk <urbanczyk@google.com> 1716213245 +0000
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> 1716360863 +0000

[pacina] Enable fast mode on PAC195X

Reference: Section 5.15 Conversion Cycle Controls of PAC datasheet
https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/PAC195X-Family-Data-Sheet-DS20006539.pdf

To achieve a higher frequency of PAC sampling, we can leverage Fast
mode, which under 1 active channel, offers 2560 SPS instead of the
otherwise used 1024. This change does not yet tackle disabling
inactive channels.

Additionally, I used the occasion to tidy the code a bit.

BUG=b:332820385
TEST=Ran pacina script on our CPD setup

Change-Id: Ia6d404f4cbdd5eaeeb4aa15c348875a5e56ec910
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/5547742
Reviewed-by: Nancy Zhao <zhaon@google.com>
Commit-Queue: Mateusz Urbańczyk <urbanczyk@google.com>
Auto-Submit: Mateusz Urbańczyk <urbanczyk@google.com>
Tested-by: Mateusz Urbańczyk <urbanczyk@google.com>