Introducing the Colour Maximite 2

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GregZone
Senior Member

Joined: 22/05/2020
Location: New Zealand
Posts: 114
Posted: 02:36am 16 Jun 2020      

  Chopperp said  My CMM2 came from CG & doesn't have the rear socket as such, & no front power switch so not much to hold the board to the back panel & same for the front panel.

With all the updates coming forth, one is always taking the lid off anyway.

Brian

Does this help? (ie. not having to take the lid off to update).  User Manual Pg 113:
If you wish to load another version of the firmware (either earlier or later) this can be done by repeating the
steps above. In this case you can use the UPDATE FIRMWARE command to place the STM32 into download
mode (equivalent to setting the BOOT CONFIG switch to "SYSTEM") thereby avoiding opening the case.

I haven't tried this command just yet. My CMM2 has just arrived from CG as well, but unfortunately I'm having a few issues getting it up and running.  

Initially I was just getting power lights but no action.  I managed to update to latest firmware, but still no VGA output (or serial terminal output), on re-boot.

However, after removing the Waveshare module (to inspect all soldering), then re-inserting the Waveshare, I had my first successful start-up.

But... No joy with the SD card. Reseating the Waveshare again gave me one good SD card session, but then just repeating red LED flashes again with "Check Disk".

Continuity testing the relevant SD card Waveshare board pin connections, through the header socket (Waveshare board to bottom of PCB), showed a no-connect on the "PC10" pin. Re-soldered all the SD relevant header socket pins, which resolved the PC10 connectivity (so all SD Card related pins were now continuity checking Okay).

But... again only a brief success with SD Card, before it's back to "Check Disk".

Not sure what to try next? I'm thinking bad / poor quality 80 pin header sockets, making intermitent contacts?
But, to try and desolder these (to try replacing them) is no small task!

Any other ideas? Keen to get my CMM2 up and running.

ps. I have also tried 3 different SD cards (Lexar / Sandisk), no luck.
Edited 2020-06-16 12:38 by GregZone