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kire_online
Australia
9 Posts |
 Posted - 11/16/2011 : 01:26:29
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Tried two different chips, same error, I'm using the ADP-054 adapter, the chip is inserted correctly at bottom of the larger zif socket and verified blank before programming.
After failed write the following reads back from both chips;
11 10 FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
...
...
Ready
H/W Re: GQ-4X Re-1.40
USB Driver Re.1.0
Software Re. 6.13
Checking new software on server...
<<MX27C4100>>
Put chip in 42 pin socket and bottom aligned with the socket.
This software is updated already.
ID check skipped
Writing... Code
Elapsed time: 0.26 seconds.
Write failed, Address=0x000001, Buffer=0x14 Device=0x10
Write failed
ID check skipped
Writing... Code
Elapsed time: 0.26 seconds.
Write failed, Address=0x000001, Buffer=0x14 Device=0x10
Write failed
ID check skipped
Blank checking... Code
Elapsed time: 3.31 seconds.
Chip is blank
c:\users\admin\desktop\kickstart v3.1 r40.63 (1993)(commodore)(a500-a600-a2000)[!].rom.
ID check skipped
Writing... Code
Elapsed time: 0.26 seconds.
Write failed, Address=0x000001, Buffer=0x14 Device=0x10
Write failed
ID check skipped
Reading... Code
Elapsed time: 3.32 seconds.
Read completed. |
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| Reply #1
kire_online
Australia
9 Posts |
Posted - 11/16/2011 : 01:50:44
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Just confirming that I didn't have a 9v power supply, just plugged in via USB on the macbook air 13"
Any ideas on what I'm doing wrong, I have no idea what the various jumpers are on the ADP-054 Adapter. |
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| Reply #2
kire_online
Australia
9 Posts |
Posted - 11/16/2011 : 02:16:19
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Did a voltage diagnostic;
Please remove any chip from the ZIF socket!
*****************************
* Testing VCC Without Load *
*****************************
VCC 3.6V test passed (code:0x18)+
VCC 5V test passed (code:0x9)+
VCC 5.5V test passed (code:0xf)+
VCC 6.2V test passed (code:0xf)+
VCC 6.5V test passed (code:0x4)+
*****************************
* Testing VPP Without Load *
*****************************
VPP 3.6V/5V test passed (code:0x3)-
VPP 12V test passed (code:0xd)+
VPP 12.7V test passed (code:0x13)+
VPP 15V test passed (code:0xe)+
VPP 21V test passed (code:0xe)+
VPP 25V test passed (code:0x19)+
*****************************
* Test Completed *
*****************************
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| Reply #3
kire_online
Australia
9 Posts |
Posted - 11/17/2011 : 16:09:39
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| No support staff monitoring these forums ? |
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| Reply #4
ZLM
2945 Posts |
Posted - 11/19/2011 : 21:25:41
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The USB power is fine. Check your chip contacting.
Try on V3 and V4 jumper to see if anything different.
See this video, the video shows how to avoid pin contacting issue.
www.youtube.com/watch?v=Y9-aRPKyL-s
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| Reply #5
kire_online
Australia
9 Posts |
Posted - 11/21/2011 : 05:03:11
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Thank you for your response.
I have tried just reading to help diagnose the problem first.
reading a 27c800 directly on the GQ-4X is fine, the file CRC32 is correct.
reading a mx27c4100 using the ADP-054 adapter produces partially readable results, for example;
You can make out the ASCI that says;
AOIGA VOO Opgvaving Wywvgo
It should probably read;
AMIGA ROM Operating System
I have inspected the adapter closely, and it appears there is a bridged solder joint on the ADP-054 between pins 16 and 17, is this normal ?
If this is a defect, how do I get this adapter replaced ? Can this damage the programmer also ?
Awaiting your reply.
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| Reply #6
ZLM
2945 Posts |
Posted - 11/21/2011 : 11:55:56
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There is no way to read " 27c800 directly on the GQ-4X " without adapter.
It seems there are some pin contacting problems.
If you found " bridged solder joint ", try to remove it and see if it makes different.
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| Reply #7
kire_online
Australia
9 Posts |
Posted - 11/21/2011 : 13:53:52
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I didn't mean 27c800, it's a 27c64, my mistake. It does however show that the adapter is faulty.
I don't have a desoldering tool otherwise I could try and remove this solder bridge.
How do I get this replaced with one that's been tested working ?
I bought this through your ebay listing, should I just raise a paypal claim since it's faulty ?
Maybe your QA is failing and should test boards before shipping them out.
I've taken a photo as best as I could ; h**p://eab.abime.net/showthread.php?p=786647#post786647
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| Reply #8
ZLM
2945 Posts |
Posted - 11/23/2011 : 16:40:01
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From picture I can see there is a little amount of solder between two pins.
It should be very easy to remove it. If you do not have soldering iron, then you can just use a screw driver tip to remove it.
I do not think you need to go through the Paypal to claim. That will make the thing be complex and more time delay.
Try to remove the extra solder, if it still does not work, then write to support@mcumall.com |
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| Reply #9
kire_online
Australia
9 Posts |
Posted - 11/28/2011 : 16:54:00
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Solder bridge removed and now it appears to be reading the ROM correctly with the correct checksum.
I will test writing a ROM tonight and make sure it works. |
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Topic |
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write failed mx27c4100 c-10
