T O P I C R E V I E W |
stevenc |
Posted - 02/20/2010 : 20:03:27 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? |
7 L A T E S T R E P L I E S (Newest First) |
Bad_Ad84 |
Posted - 02/22/2010 : 00:39:39 sounds like usb port isnt providing enough power, try ac adapter on the one that fails. |
Necrosaro420 |
Posted - 02/21/2010 : 16:47:33 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. |
stevenc |
Posted - 02/21/2010 : 09:02:40 Got it to work without the power supply. I just wasn't loading the rom properly apparently. :S |
stevenc |
Posted - 02/20/2010 : 21:46:12 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. |
stevenc |
Posted - 02/20/2010 : 21:20:15 Wondering if this could be an issue with the chip not getting enough power? |
Necrosaro420 |
Posted - 02/20/2010 : 21:10:31 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. |
stevenc |
Posted - 02/20/2010 : 21:03:53 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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