PCM Hammer Suite development

They go by many names, P01, P59, VPW, '0411 etc . Circa 1999 to 2006. All VPW OBD2 PCMs.
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Re: PCM Hammer Suite development

Postby antus » Wed Feb 03, 2021 12:27 pm

pc to tool could be serial or usb, at any speed. and vpw time depends on the data itself (which you dont know on a receive until after you have it) and bus activity, so I dont think you can accurately time it at all. You just need an approximation of worst case that works for everyone based on real world feedback. And rightly or wrongly, I think that is what we have. But we could describe the why better instead of documenting a process that is not correct in code.
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Re: PCM Hammer Suite development

Postby Gampy » Wed Feb 03, 2021 11:28 pm

Not questioning why it's done, or what it does, that's easy to read in code, just why that number was chosen ... It's not 8N1 Serial as the comment states, so it is misleading, not to mention how bad it looks.

It is what it is, if it's an elephant call it an elephant, not a mouse!

So the number came out of testing ... That is all I wanted to know, or need to know.
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Re: PCM Hammer Suite development

Postby antus » Thu Feb 04, 2021 3:59 pm

Well its not my code but I know it seems to work OK and I can explain the real factors in timing. :)
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Re: PCM Hammer Suite development

Postby NSFW » Fri Feb 05, 2021 6:40 pm

I'm guessing it was me who put the 9 there because I thought 8N1 was 9 bits per byte. :)

Changing the 9 to 10 would probably not do any harm. Timeouts would get slightly longer of course.

I don't think users encounter many timeouts in practice, but I'm not certain of that. I guess that's something to investigate.
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Re: PCM Hammer Suite development

Postby NSFW » Mon Feb 22, 2021 1:06 pm

It turns out that if you add more <Conversion> elements to a parameter in the logger's parameter XML files, you run into some bugs.

Code changes are here:
https://github.com/LegacyNsfw/PcmHacks/ ... gger-fixes

An unofficial release with those fixes is attached.

(And the Release.ps1 script doesn't handle labels like "016.1" but that's something I just now discovered and will work on later... EDIT: it's fine if I just use a hyphen instead of a dot. I will keep that in mind for next time.)
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