Logic 2.3.19 Does USB LS and FS work at all?

Logic 2 Software
#1

I thought I would try a quick capture to see how hard it might be to modify the USB LS and FS analyzer to maybe have a new decode level - like Packet with Data…

But first thought I would try a capture with current release and I am a bit rusty so don’t remember which is the D+ versus D- but I tried both ways…

So far the analyzer that is part of the build is not analyzing anything. It sits at 0% and if I try different settings it always just shows RESET only at start like:

screenshot
screenshot1859×626 93.8 KB

So wondering if it is working at all with current build?
Here is a partial capture.
USB_Mouse_startup.sal (26.6 KB)

Now back to playing. Note: What I wanted to really capture was the startup of a thumb drive, but as expected it is running at the 480mhz and nothing shows up in the analyzer.

#2

@KurtE The usb analyzer in your capture might have had the incorrect speed setting. Setting to 1.5Mbps solved it for me. Can you double check that?

Screen Shot 2021-02-26 at 3.20.04 PM
Screen Shot 2021-02-26 at 3.20.04 PM1253×732 69.5 KB

Here is the updated capture file:
updated-USB_Mouse_startup.sal (24.1 KB)

#3

Kurt, one thing we’ve done in the past is to plug a USB 2.0 high speed device into a USB 1.1 hub. They can be hard to find though. I think we picked one up off of Amazon 5-8 years ago.

#4

Thanks, it is working.

I actually started off yesterday with low speed, but for some reason it would not detect it properly…
Not sure why… I tried all 4 combinations of Speed and which pin is + and -

Maybe it was just having an off day.

Also good idea of trying to go through a slow hub. Which is an interesting point of wondering what the HUB is I am testing on the T4.1 with USB thumb drives…

Thanks again

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