ECU6 8051 to 80552 conversion

[Ord Millar]

Al,

I got my CD for the Phillips 80C51 series, and looked at the assembler code
that you sent me.

For the A/D conversion, it looks like the CPU you had before did an 8 bit
conversion.  The Phillips converter is 10 bits.  It looks like the basic
code that goes with this would only know how to read 8-bit.

Did you want to change the basic, or should we store only the high 8 bits?

For the Flash stuff - I need some specs on the 5 volt system, I have only
ever programmed for 12V ones.


-----Original Message-----
From: Al Lipper <alipper at cardozo.org>
To: Ord Millar <ord at aei.ca>; alipper at pop.thegrid.net
<alipper at pop.thegrid.net>; diy_efi at efi332.eng.ohio-state.edu
<diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, March 20, 1999 4:24 PM
Subject: Re: 8051 programming


>Ord,
>Thanks so much for your interest!  I don't think we need too uch assembly
>programming, but some.  Basicially, we've changed over from an Intel
>80C51GB (that is no longer made) to a Phillips 80C552.  They have similar
>features, but the capture/compare timers  and A/D converter have different
>register structures, so the old software needs to be modified to work with
>the philips chip.  The other thing we need done is to revise our old flash
>memory loader to work with a new 5v flash (we used to use a 12v version).
>All the current code is well commented.  I've attached the files that
>contain it, so perhaps you can look over them and tell me what you think.
>
> Al
>
>At 02:23 PM 3/20/99 -0500, you wrote:
>>Al,
>>
>>I do a lot of 8051 programming, mostly in assembler (with a little MCS
basic
>>for fun now and then).
>>
>>Perhaps I can help you with the ECU6 software.  I can not spend too much
>>time with it, but if you have some specific problems to solve, or
algorithms
>>that you need let me know.
>>
>>Ord
>>
>>
>