help with ECU6/7

[Al Lipper]

> The 87C51 intel microcontroller has to be replaced as u mentioned.
> If i replace it, the additional programming involves the re allocation
> of registers or does it go more than that?

If you build ECU6, use the Intel 80C51GB (I think I have a spare if you need
one).  If you want to use another CPU, then go with ECU7.

> The look up table for the map/tps/coolant/O2, can they be trimmed
> down to remove the TPS and coolant but add in a MAF portion?
They don't yet have TPS, and Yes, the coolant temperature protion cal be
removed.  I'm sure you could add MAF, but this would take the place of the
MAP input (and require appropriate modification to the tables).


> The jumpers in the circuits are to be used for what purpose?not too sure
> about that too..
They are not used - they are just for future expansion.


> There are two injector drives in the circuit, are they in sequential
> or batch mode?
I have the injectors firing in batch mode, but this is controlled by
software, so you could program them to work in sequential mode.

and the variables in the BASIC program called LSB
> MSB are for
> calculating what?
They are the Most Significan Byte and Least Significan Byte of the duration
for which the injectors are to remain on for.  They are values converted
from miliseconds by the BASIC program.  They feed the appropriate input to
the EFI02 ASM routine.

>
> By the way, do you have any more EFI ECU6 boards I could buy?
Yes, I have one left.  Let me know if you want it.  As I mentioned, I also
have one of the 80C51GB chips.

 I
> live in UK and the shipping will cost a bit but overall I think
> it will be much cheaper than buying a commercial system. I will
> probably need some more help in adjusting the pulse width to suit
> the natural gas injectors, so I might need your help again. sorry
> to trouble
> you so much
>
> Daniel
> University of Birmingham U.K
>
>

Good luck, Daniel.