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post #1 of 4 Old 01-20-2013, 09:06 PM Thread Starter
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chip burning for dummies

Hey, I know nothing about correct offset to use when burning chips. Can someone lead me to a post about burrning chips. All Im trying to do is take a good running cal off a nmc27c256b and burn it to a sst27sf512. The smec is 1989. All I know how to do is copy the chip to a file. Using a GQ-4X burner. Or how to copy (downgrade) to a 27128a-2.
i admit , I know nothing.
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post #2 of 4 Old 01-20-2013, 11:32 PM Thread Starter
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Re: chip burning for dummies

Ok, Im starting to figure it out. Reading Robs site.
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post #3 of 4 Old 01-21-2013, 07:12 AM
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Re: chip burning for dummies

It depends on the size of the .bin file.

Going from a '256 chip (32k) to a '512 (64k), with a 32k file, you need to use an offset of 0x8000. A 32k bin will not fit on a '128 chip (only 16k, half as big as needed).

If it's a 16k bin (a T2 cal for example), going from a '256 chip to a '512, the offset should be 0xC000. If you go down to a '128 chip, you don't need an offset (the bin fills the chip).
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post #4 of 4 Old 01-22-2013, 12:38 AM Thread Starter
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Re: chip burning for dummies

Thanks for reply Rob. Couldnt figure it out, so I found a 256 NOS chip in town. Worked perfect. Straight across copy is all I can do right now LOL.
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