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GregZone
Senior Member

Joined: 22/05/2020
Location: New Zealand
Posts: 114

Posted: 05:54am 01 Jul 2020

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panky said Sorry folks, flakey PDF creation with PDF Creator.

I tested this version,
Graphics Programming on the CMM2-v1.0b.pdf on Firefox and Acrobat 9.

Please let me know if there is still an issue. Also corrected a few of (my) typos.

Thanks for the quick fix Doug.

I've tested on my system and looks to be all good now.

One other thought occurred to me: It might be useful to add a "Revision History" page to the end of the document, where you can briefly note changes & additions made to later versions.

I suggest this, as this is a tuturial / reference that's likely to grow as more content is added. For those who have already worked through an earlier version, it will be very useful to be able to easily identify what sections have been changed or added since the version they have previously read (instead of having to re-read the whole document, to try and figure out what's new).

Just me 2c

KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 2044

Posted: 09:41am 01 Jul 2020

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panky said Sorry folks, flakey PDF creation with PDF Creator.

I tested this version,
Graphics Programming on the CMM2-v1.0b.pdf on Firefox and Acrobat 9.
s.

Very nice manual, thanks for putting it together.

Mike.

NANO:Inverter V 8.2ks - Linux AvrDude GUI script V3.0

Volhout
Guru

Joined: 05/03/2018
Location: Netherlands
Posts: 5719

Posted: 10:57am 01 Jul 2020

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When replacing the crystal oscillator with a canned one improves the performance, there is a possibility that the oscillator area on the board is noisy because digital traces run through the area (in different layers). If one of these digital traces is toggling (i.e. to create VGA video..??) this can phase modulate the crystal oscillator.

Phase modulation of the crystal oscillator may cause instability in the PLL's inside the H7.

This can only be solved by improving the board layout. If the Waveshare board is the culprit (we have no control over it's layout), there is no alternative then placing a canned oscillator.

Volhout
Edited 2020-07-01 20:58 by Volhout

PicomiteVGA PETSCII ROBOTS

Shadamus
Newbie

Joined: 26/07/2020
Location: United States
Posts: 17

Posted: 08:44pm 05 Aug 2020

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Panky / matherp, is this "Graphics Programming on the CMM2" document going to be part of the official documents hosted off of Geoff's site?

I saw the other documentation errata thread, but that one seemed to be focused on documents that Geoff maintains.

If this document is going to be maintained/released, I have one update to new syntax.

The POLYGON command, used in the example on page 19, now has a first parameter telling it how many points to use from the array. �Peter indicated this change was made prior to the 5.05.03 release, which is what Geoff's site has available for download (in addition to the newer beta builds). �https://www.thebackshed.com/forum/ViewTopic.php?TID=12423&P=2

That's the only one I've run into, but thought I'd mention, to the maintainers.

NEVERMIND -- I just saw Panky's post of the updated doc, and it's fixed there.
Edited 2020-08-06 07:03 by Shadamus

PhenixRising
Guru

Joined: 07/11/2023
Location: United Kingdom
Posts: 1740

Posted: 04:05pm 21 Feb 2026

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Now that I'm working with the CMM2 that has sat around for years, I can hardly contain my excitement.

A couple of questions:

I'm using Mode 11,16 if that's even relevant.

Am I able to take a bitmap image (a button for example) and embed it (as text?) in the code? If so, is there a tool/utility for this?

There are links in all CMM2 documents to TassyJim's defunct site. Where can I find Font-tweak, etc.?

TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6461

Posted: 07:51pm 21 Feb 2026

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https://www.thebackshed.com/forum/ViewTopic.php?TID=18132&PID=242245#242245#242245

Also included in the latest picomite firmware bundle.

Jim

VK7JH
MMedit

PhenixRising
Guru

Joined: 07/11/2023
Location: United Kingdom
Posts: 1740

Posted: 12:07am 22 Feb 2026

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Thanks Jim....ttf fonts??? Awesome

I never expected this and so I had done a lot of research before asking here and I was convinced that I was going to have to go through a lot of struggling. But here we have it

Talk about the gift that keeps on giving.

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