Home
JAQForum Ver 24.01
Log In or Join  
Active Topics
Local Time 11:13 01 Aug 2025 Privacy Policy
Jump to

Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.

Forum Index : Microcontroller and PC projects : My CMM2 is Haunted!

Author Message
toml_12953
Guru

Joined: 13/02/2015
Location: United States
Posts: 442
Posted: 08:46pm 29 Nov 2020
Copy link to clipboard 
Print this post

When I try to use OPTION FLASH, either my unit restarts to the USB keyboard prompt or it locks up totally and I have to reflash the firmware (with verification on).
Even if I don't try to use OPTION FLASH, I do the following:

OPTION CONSOLE SCREEN
OPTION CONSOLE SAVE
OPTION RTC RECALIBRATE 50
OPTION SD TIMING FAST

and it all appears to work until I cycle the power. Then OPTION LIST shows the
options I set plus the following:

OPTION TAB 4
OPTION BAUDRATE 65536
OPTION FLASH 32xxx (The xxx varies)

Does anyone know what's going on?
 
TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6283
Posted: 09:04pm 29 Nov 2020
Copy link to clipboard 
Print this post

You have some strange options set
OPTION CONSOLE SCREEN
OPTION CONSOLE SAVE
I wouldn't bother with these unless you have everything working well and have a need for maximum performance.

OPTION RTC RECALIBRATE 50
it's
OPTION RTC CALIBRATE xx and once again, not important until everything is settled down. Then you can fine tune it.

OPTION SD TIMING FAST
This has been known to cause problems and I suggest sticking with normal SD speed until you are happy with the rest of the setup.
Even then I wouldn't bother.

Since you have been playing so much, I would do a factory reset either by removing the battery (with system turned off) or shorting pin 40 to ground during power-up.

The default is to use FLASH so once again, there is no reason to play.

You shouldn't have to keep reinstalling the firmware. A system reset should recover things.

Jim
VK7JH
MMedit
 
toml_12953
Guru

Joined: 13/02/2015
Location: United States
Posts: 442
Posted: 09:28pm 29 Nov 2020
Copy link to clipboard 
Print this post

  TassyJim said  You have some strange options set
Since you have been playing so much, I would do a factory reset either by removing the battery (with system turned off) or shorting pin 40 to ground during power-up.

The default is to use FLASH so once again, there is no reason to play.

You shouldn't have to keep reinstalling the firmware. A system reset should recover things.

Jim


You're right. I mistyped the OPTION RTC.

A system reset doesn't recover things, though.

I'll stick with a plain vanilla system with only RTC CALIBRATE 50.
 
TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6283
Posted: 09:33pm 29 Nov 2020
Copy link to clipboard 
Print this post

I assume you also need OPTION USBKEYBOARD US
VK7JH
MMedit
 
toml_12953
Guru

Joined: 13/02/2015
Location: United States
Posts: 442
Posted: 10:46pm 29 Nov 2020
Copy link to clipboard 
Print this post

  TassyJim said  You have some strange options set

The default is to use FLASH so once again, there is no reason to play.

You shouldn't have to keep reinstalling the firmware. A system reset should recover things.

Jim


That still doesn't answer why my system crashes whenever I try to do OPTION FLASH or OPTION RAM. Even if I don't want to do them I should be able to without a lockup, no?

No one else's system does these weird things do they?
 
mclout999
Guru

Joined: 05/07/2020
Location: United States
Posts: 490
Posted: 01:45am 30 Nov 2020
Copy link to clipboard 
Print this post

Have you tried different USB power and swapped out the A to B USB cable.  Those two things have been issues for some.  I had my CMM2 on a powered hub and had all those issues and switched to an old Amazon Kindle supply and it has never been an issue since with dozens of firmware updates.  And other have found help with the cable replacment.
 
Print this page


To reply to this topic, you need to log in.

The Back Shed's forum code is written, and hosted, in Australia.
© JAQ Software 2025