Re: Rom image file type question

Cameron Rector wrote:
> I thank everyone for all the help so far.............
> I have set up my programmer and have it talking to the computer. I have
> erased and programed a sample eprom and everything seams to work just fine.
> Now, I am moving to the next step and I don't understand a couple of things.
>
> 1. When I upload the old eprom into ram and then copy ram to hard drive,
> my file size is 43k or so. When I look at my new rom image it is only
> 4.096k. I assume I am saving the information in the wrong format or
> something. Maybe someone could help me understand what I am doing wrong.

43K? Boy, are you ever saving in the wrong format! What you want is a
raw data dump.

> 2. I am going to research sumcheck, because I am not sure what I should
> or shouldn't see for a sumcheck number.

Not really needed as long as you're comparing a data file to the EPROM.

> 3. After copying the eprom to ram my "verify" fails. is this because I
> need to write "zeros" to ram before I download the eprom to ram?

You shouldn't have to fill RAM with anything, but the buffer Start
Address needs to be 0000 and (for 4K) the end address should be 0FFF.
And the EPROM (for 4K) should be a 2732 or 2532.
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Received on Sun Sep 17 02:46:29 2006