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JohnS
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Joined: 18/11/2011
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Posted: 07:50pm 29 May 2020

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I've been regarding it as a sort of beta, checking out any/all of:
mechanical, electrical/electronic, software, documentation, ...

plus ideas (whether accepted or not) regarding completeness or (doable fairly quickly) enhancements and so on.

Geoff mentioned fun, IIRC, too.

John

Decoy
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Joined: 02/08/2019
Location: Denmark
Posts: 109

Posted: 08:54pm 29 May 2020

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I'm in the process of sourcing parts, and I have a hard time finding the MCP2221A-I/P microcontrollers in my neck of the woods (Denmark - I guess we're part of Europe)

Anybody know of a source?
Edited 2020-05-30 06:55 by Decoy

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

Posted: 09:13pm 29 May 2020

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Decoy said I'm in the process of sourcing parts, and I have a hard time finding the MCP2221A-I/P microcontrollers in my neck of the woods (Denmark - I guess we're part of Europe)

Anybody know of a source?

How about RS, they seem to have a Denmark location:

https://dk.rs-online.com/web/p/usb-kontrollere/1717828/

Also the PIC alternative:

https://dk.rs-online.com/web/p/mikrokontrollere/7863943/

TassyJim

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Joined: 07/08/2011
Location: Australia
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Posted: 09:46pm 29 May 2020

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If you use a socket for the MCP2221A-I/P, you can use any USB-TTL module for the console until you source the correct chip.

Jim

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TassyJim

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Posted: 09:49pm 29 May 2020

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GregZone said
Do you know if it's a single July issue article, or if is going to be maybe a 2 - 3 issue more indepth project series?

2 issues
The usual - descriptions in the first and construction in the second.

Jim

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GregZone
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Joined: 22/05/2020
Location: New Zealand
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Posted: 10:15pm 29 May 2020

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TassyJim said 2 issues
The usual - descriptions in the first and construction in the second.
Jim

Nice! That's good enough to consider supporting Silicon Chip with a 6 month subscription. :)

Hopefully, if the interest is as high as we'd all hope (with growing interest in retro computing), you'd think it could even generate some follow-up articles in the subsequent months.

KeepIS

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Joined: 13/10/2014
Location: Australia
Posts: 1399

Posted: 10:52pm 29 May 2020

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I'm testing the WS board without an RTC battery backup, it does not keep Option Baudrate across a power cycle. Is this correct?

EDIT: The reason I'm asking is that the fabulous write to the RTC memory function that I use in the ARM-H7 is missing from this version of ARM MM Basic, so wondering if this is where the user options are now kept?

EDIT 2: Found the answer in the Manual

�User OPTIONS, Time and saved variables settings are saved in bank of 4K RAM, VBAT needed.

BTW I can't get any 2mm pitch skts for weeks, so just testing with a CP210 USB-SER and terminal program, I'll tack on a battery lead and continue to play around.

BTW MM.INFO$(KEYBOARD) return CONNECTED with no keyboard?

EDIT:3 Found some 2mm pitch dual row 80p headers in AU.

.
Edited 2020-05-30 16:35 by KeepIS

It's all too hard.
Mike.

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 8604

Posted: 07:22am 30 May 2020

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Quote BTW MM.INFO$(KEYBOARD) return CONNECTED with no keyboard?

Thanks - that's a bug, will fix in next release

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 8604

Posted: 05:17pm 30 May 2020

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V5.05.02RC44

Blocks the use of function keys and shifted function keys that do not have defined uses in the editor.

V5.05.02RC43

Fixes a bug in MM.INFO(FILESIZE,fname$) when a path is specified in the filename
Fixes a bug in MM.INFO(MODIFIED,fname$) when a path is specified in the filename

V5.05.02RC42

fixes a bug where MM.INFO$(KEYBOARD) was giving an incorrect value
fixes a "feature" where when editing files other than BAS or INC with OPTION COLOURCODE ON selections and find results were not highlighted
fixes a "feature" where when editing any type of file with OPTION COLOURCODE OFF selections and find results were not highlighted

NB: full change log is in the readme.txt file

http://geoffg.net/Downloads/Maximite/Colour_Maximite_2_MMBasic.zip
Edited 2020-06-01 17:49 by matherp

KeepIS

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Posts: 1399

Posted: 09:37pm 01 Jun 2020

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Anyone else having trouble with this latest zip. I can't unpack it, the previous zip that I still have is fine.

Mike.

It's all too hard.
Mike.

Decoy
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Joined: 02/08/2019
Location: Denmark
Posts: 109

Posted: 09:51pm 01 Jun 2020

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Just a quick question: The Hirose SD DM1AA-SF-PEJ(21), is this a very "special" part, or are there equivalents?

Thanks for your help!

TassyJim

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Joined: 07/08/2011
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Posted: 10:04pm 01 Jun 2020

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KeepIS said Anyone else having trouble with this latest zip. I can't unpack it, the previous zip that I still have is fine.

Mike.

No problems here

Jim

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TassyJim

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Posted: 10:09pm 01 Jun 2020

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Decoy said Just a quick question: The Hirose SD DM1AA-SF-PEJ(21), is this a very "special" part, or are there equivalents?

Thanks for your help!

The SD card holder is one part that I would be very careful about.

SDcard_socket_specs.pdf

Check the specs of any alternative module carefully if you are mounting it on the board.

I have a generic SD holder working on my breadboard CMM2.
It is the pin placement that is critical.

Jim

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KeepIS

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Joined: 13/10/2014
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Posted: 12:13am 02 Jun 2020

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TassyJim said

KeepIS said Anyone else having trouble with this latest zip. I can't unpack it, the previous zip that I still have is fine.

Mike.

No problems here

Jim

Just as a matter of interest:

I downloaded the zip 5 times this morning and every time received an error when unpacking.

I kept the last faulty download to compare.

I downloaded the zip again now, and it now unpacks, however the one that I kept from the earlier 5 attempts still gives a "Stream read error" and an invalid zip error from windows inbuilt unzip.

Main thing is, it's good now

Mike.

It's all too hard.
Mike.

KeepIS

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Posts: 1399

Posted: 06:22am 02 Jun 2020

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Decided I couldn't wait for skts to arrive, carefully soldered to the top of the board, an SD card reader from Jaycar and the wires for the VGA display, some resistors on a bit of vero board and I have a perfect picture running Jims (TassyJim) ColourBar program and Peters Rotating ball. �

Edited 2020-06-02 16:23 by KeepIS

It's all too hard.
Mike.

Decoy
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Joined: 02/08/2019
Location: Denmark
Posts: 109

Posted: 08:40am 02 Jun 2020

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TassyJim said

Decoy said Just a quick question: The Hirose SD DM1AA-SF-PEJ(21), is this a very "special" part, or are there equivalents?

Thanks for your help!

Thanks. These things get complex fast �

The Hirose SD card reader is the final thing I need to source. I cannot find them on EBay. I did find them, as advised, on RS components, but if I were to order a single one, the price would be 33 AUS (converted from 150 DKK).

That seems a bit steep :)
Edited 2020-06-02 18:40 by Decoy

matherp
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Posted: 08:46am 02 Jun 2020

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You can also get the socket from Farnell . I think the number in brackets is just the packaging option - certainly I use this version as it is cheaper than RS. If you can't get one at a sensible price I suggest you PM one of the CMM2 suppliers (CG, WW, or Grogster) and see if they will sell you one at a sensible price.

Decoy
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Joined: 02/08/2019
Location: Denmark
Posts: 109

Posted: 09:00am 02 Jun 2020

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matherp said You can also get the socket from Farnell . I think the number in brackets is just the packaging option - certainly I use this version as it is cheaper than RS. If you can't get one at a sensible price I suggest you PM one of the CMM2 suppliers (CG, WW, or Grogster) and see if they will sell you one at a sensible price.

The connector in your link is aDM1AA-SF-PEJ(72), is that the same as DM1AA-SF-PEJ(21)?

I would love to buy a small batch, like 10 or so.

Thanks!

matherp
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Posted: 09:03am 02 Jun 2020

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Quote The connector in your link is aDM1AA-SF-PEJ(72), is that the same as DM1AA-SF-PEJ(21)?

Quote I think the number in brackets is just the packaging option - certainly I use this version as it is cheaper than RS.

Decoy
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Joined: 02/08/2019
Location: Denmark
Posts: 109

Posted: 09:14am 02 Jun 2020

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I just found this: LINK

That should be the part, yes?

Thanks

Edited 2020-06-02 19:15 by Decoy

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