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Problem with 29c256 chip

Old 05-21-2004, 12:48 AM
  #1  
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Default Problem with 29c256 chip

When using ng5 with 27c256, i got no problem , no cel code, idle fine for now, but won't rev pass 4k @ idle (maybe because of the launch control). I can drive it with no problem.
Now using the same bin with 3 different 29c256 chip , i got a solid cel light, car idles like ----, die after that some minutes. (cannot even drive it).

When i put back the 27c256 chip, the car runs fine again. Don't know what to think. I got no problem or error while burning the bin to the chip.
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Old 05-21-2004, 12:50 AM
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Default Re:Problem with 29c256 chip

It's got to be a problem with your burner or software. What brand is your burner?
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Old 05-21-2004, 07:41 PM
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Default Re:Problem with 29c256 chip

I'm using batronix eprom programmer v3.3. I can burn with no problem or error. I double check the bin after burning with no problem also. This is really wierd and i don't wanna get stuck with this 27c259.
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Old 05-21-2004, 07:47 PM
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Default Re:Problem with 29c256 chip

are u sure its a 29c256 and not a AT28C256
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Old 05-21-2004, 08:06 PM
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Default Re:Problem with 29c256 chip

Are you changing the settings on the burner to be burning 29xxxxx as opposed to 27xxxxx
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Old 05-21-2004, 08:15 PM
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Default Re:Problem with 29c256 chip

Originally Posted by Ravage70
are u sure its a 29c256 and not a AT28C256
yep, no doubt

Originally Posted by xenocron
Are you changing the settings on the burner to be burning 29xxxxx as opposed to 27xxxxx
yep, did this 2. I changed it as soon i had the 29c256.

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Old 05-21-2004, 11:16 PM
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Default Re:Problem with 29c256 chip

Yeah, make sure your jumpers are in the correct places. Other than that, I don't know what could be wrong. It should run them the same. What you could do is, open prog-studio twice, open the bin file you want to burn, burn it, and then read it back from the chip, then open the same bin file in the other window, and compare and see if they are the same, if they aren't then it's something in the burning process.
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Old 05-21-2004, 11:44 PM
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Default Re:Problem with 29c256 chip

WinHex (http://www.google.com search for "WinHex" +"Download") will do a byte by byte comparison of two files for you, exposing the differences and address loactions of these differences.
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Old 05-21-2004, 11:46 PM
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Default Re:Problem with 29c256 chip

^^^^ or you can do it the easy way.
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Old 05-22-2004, 06:09 PM
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Default Re:Problem with 29c256 chip

I'will try to compare them as soon as i get home. Hope to find a solution quick.
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