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stevenc
27 Posts |
 Posted - 02/20/2010 : 20:03:27
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I'm having some problems programing a M27C801. The chip is blank.
After the programmer is done writing and verifying and doing another blank check, it gives me this.
ID check OK
Blank checking... Code
Elapsed time: 45.77 seconds.
Chip is blank
Writing... Code
Elapsed time: 228.12 seconds.
Device write completed OK
Verifying... Code
Device is verified
Elapsed time: 45.94 seconds.
ID check OK
Blank checking... Code
Elapsed time: 45.77 seconds.
Chip is blank
What's going on? Is there some kind of jumper I need to set on the programmer for it to program 27c801 chips? |
Edited by - stevenc on 02/20/2010 20:10:06
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| Reply #1
stevenc
27 Posts |
Posted - 02/20/2010 : 21:03:53
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Tried at a slower speed, same results except for failing to verify.
<<M27C801>>
Speed = 5
ID check OK
Writing... Code
Elapsed time: 935.23 seconds.
Device write completed OK
Verifying... Code
VerifyFailed, Address=0x080000, Device=0xFF, Buffer=0x00
VerifyFailed
Elapsed time: 727.02 seconds.
ID check OK
Blank checking... Code
Elapsed time: 1139.30 seconds.
Chip is blank
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| Reply #2
Necrosaro420
109 Posts |
Posted - 02/20/2010 : 21:10:31
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| Pretty much the same thing here in the 5.0 software. Burns, but mine fails. I do a blank chip afterwards and it says the chip is blank, but then I click the code tab to make sure the file was loaded right that I was trying to burn, and all the info is there. |
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| Reply #3
stevenc
27 Posts |
Posted - 02/20/2010 : 21:20:15
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| Wondering if this could be an issue with the chip not getting enough power? |
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| Reply #4
stevenc
27 Posts |
Posted - 02/20/2010 : 21:46:12
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FIXED, I think.
I used a external power supply, my good old sega genesis model 1 PS (DC 10V 1.2A).
I hope this power supply adapter won't do any damage in the long run?
<<M27C801>>
Writing... Code
Elapsed time: 413.60 seconds.
Device write completed OK
Verifying... Code
Device is verified
Elapsed time: 45.94 seconds.
ID check skipped
Blank checking... Code
Elapsed time: 0.46 seconds.
Device blank check failed at address: 0x000000, Read= 0x00.
Blank check failed
ID check skipped
Blank checking... Code
Elapsed time: 0.46 seconds.
Device blank check failed at address: 0x000000, Read= 0x00.
Blank check failed
ID check skipped
Verifying... Code
Device is verified
Elapsed time: 45.82 seconds.
ID check skipped
Reading... Code
Elapsed time: 45.67 seconds.
Read completed.
And the code looks like it's fine. |
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| Reply #5
stevenc
27 Posts |
Posted - 02/21/2010 : 09:02:40
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Got it to work without the power supply.
I just wasn't loading the rom properly apparently. :S |
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| Reply #6
Necrosaro420
109 Posts |
Posted - 02/21/2010 : 16:47:33
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| Well I have the 5.0 loaded on 2 pc's. The programmer on one will burn the chip, but burns it blank. On the other using the exact same chip and exact same file, it burns fine. |
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| Reply #7
Bad_Ad84
210 Posts |
Posted - 02/22/2010 : 00:39:39
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| sounds like usb port isnt providing enough power, try ac adapter on the one that fails. |
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Topic |
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M27C801 cannot/won't write, GQ-3X
