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nad007007

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Joined: 29/06/2020
Location: New Zealand
Posts: 4

Posted: 10:15am 28 Jul 2020

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Hello

I have brought a new Cmm2 completed from https://www.rictech.nz/products/31/COLOUR-MAXIMITE-2 and time not saved when power removed with new battery installed.

Also when using Tera term when i paste a program i get random characters.
the first few lines are fine but if i copy a 6000 line of code its all messed up.

Hope someone can help.

Regards
Conrad

romba6

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Joined: 04/07/2020
Location: United Kingdom
Posts: 37

Posted: 11:08am 28 Jul 2020

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Re the Teraterm issue you may need to introduce a
Transmit delay e.g 1ms/char
and 50 msec/line
These are in the Serial Port setup of Teraterm

nad007007

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Joined: 29/06/2020
Location: New Zealand
Posts: 4

Posted: 11:27am 28 Jul 2020

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Hi romba6

Thank you for your reply.
I have also been playing with Transmit delay e.g 1ms/char
and 50 msec/line for a few days and have tried your suggestion and i still get some errors with missing or messed characters.

Regards
Conrad

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10580

Posted: 12:28pm 28 Jul 2020

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Use XMODEM rather than AUTOSAVE

nad007007

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Joined: 29/06/2020
Location: New Zealand
Posts: 4

Posted: 01:05pm 28 Jul 2020

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Hi matherp

Thanks for your reply.
I had thought of using xmodem and had tried xmodem to send .bmp files. If using Tera term to paste programs is broken with cmm2 then i will use xmodem.

Thanks
Conrad

bigmik

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Joined: 20/06/2011
Location: Australia
Posts: 2971

Posted: 01:32pm 28 Jul 2020

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Hi Conrad,

I have only Loaded programs by writing to the SD card in my pc.

But as for the battery problem can you measure the voltage across the battery holder with the battery inserted?

Maybe the battery holder is faulty or there is a short somewhere that flattens the battery..

Does the battery holder look like it�s soldered on both pads?
Is the battery holder mounted the same orientation as the silkscreen on the pcb?

It is not normal, I have found the time keeps relatively good time when powered off (in the vicinity of 5-10seconds per day) without any RTC trimming.. It is one of the things I test on all of the cmm2 I build. (Not 24hrs but several hours)

Regards,

Mick

Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<<

nad007007

Newbie

Joined: 29/06/2020
Location: New Zealand
Posts: 4

Posted: 01:46pm 29 Jul 2020

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Hi bigmik

Thanks for your reply. I am getting 3.08 volts across the battery. Not sure what happened but when i power the cmm2 off for 10 seconds the time and date is now saving.

Regards

Conrad

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