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jm
Joined: 30 Sep 2007
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Posted: 08 October 2007, 17:03 PM Post subject: VM upgrade failure |
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I have a Z24 chip, purchased last year. It worked fine until I tried the firmware upgrade to 2.3. Upgrading thru the IDE progressed for a while until a CRC error was repoted.
The chip became unresponsive. I tried the emergency upgrade but it failed with an ATN error. Finally I tried the emergency command line:
(I'm using a usb/com port 6)
zload -c6 -e zx24_2-3-0.zvm
"Device failed to timely acknowledge record 0.
Device reports bad signature, record 0.
Device reports bad signature, record 0.
Device reports bad signature, record 0.
Device reports bad signature, record 0.
Device reports bad signature, record 0.
Retry limit exceeded, aborting update."
The Zx24 has ovbiously suffered from a firmware lobotomy 
How do I reload the chip? |
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dkinzer
Site Admin
Joined: 03 Sep 2005
Location: Portland, OR
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Posted: 09 October 2007, 15:00 PM Post subject: |
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It's difficult to speculate as to what might have gone awry. The most expedient solution for you is to send you a new ZX-24 which we will do today. We would like to get your current one back to try to determine what its problem might be.
If you want the replacement sent to a different address than your original order let me know soon. |
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jm
Joined: 30 Sep 2007
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Posted: 10 October 2007, 0:49 AM Post subject: |
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Thank you for your prompt reply.
Upgrading firmware acts like a pheromone for attracting Murphy and his laws |
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mdown
Joined: 03 Feb 2006
Location: Dallas, Texas
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Posted: 11 October 2007, 14:50 PM Post subject: Gui and VM Upgrades |
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We have found that the GUI is very unreliable when it comes to upgrading VM in devices so we always use the zload.exe command.
-Mike |
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victorf
Joined: 01 Jan 2006
Location: Schenectady, New York
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Posted: 22 October 2007, 19:47 PM Post subject: |
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I have had the same problems as reported by JM. I too am connected to the Z24 via USB to a Elba USB to Serial converter, except mine is on PC COM2.
I have gone the IDE route initially and with the emergency upgrade. I attempted the command line version as a last resort with no luck.
Have I exhausted my options here or is there something else to try?
Any enlightenment will be appreciated.
Vic |
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dkinzer
Site Admin
Joined: 03 Sep 2005
Location: Portland, OR
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Posted: 22 October 2007, 21:23 PM Post subject: |
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| victorf wrote: | | Have I exhausted my options here or is there something else to try? |
I didn't remember JM's reference to using a USB port but now that you mention it I see that he did. That could be an important factor that we've overlooked.
If you have access to a PC with a standard serial port, you might try an emergency update using zload. In any event, we'll send you a new ZX-24 if you can't get the upgrade to work. |
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dlh
Joined: 15 Dec 2006
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Posted: 22 October 2007, 21:47 PM Post subject: |
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USB->serial converters (and probably virtual serial ports used with network serial device servers) are quite a bit slower than a normal serial connection because a translation has to take place at both ends of the link. So, it might be that procedures expecting a response within some (short) set period might fail.
Also, not all such adapters are created equal. While almost all of the chipsets support all of the handshaking lines, some final designs handle them while others do not. Procedures which use DTR might work with some and not with others. |
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