8051 EFI

[Paul Corner]

Hi Mike

The flavour of 8051 is the Siemens 80C515 - 8 channels of 8 bit AD Serial
interface & baud rate clock, 3 16 bit counter/timers one with 4 capture/compare
inputs. Plus the usual IO ports. It may not be everyones cup of tea - It seemed
to be the best choice at the time. At least being an 8051 core, the programming
tools are cheap or even free.

I never had plans to 'go into production' too many others chasing after a niche
market. I just wanted a couple of boards for myself and someone else who had
said they wanted one. The local PCB house made some up, plus a couple to cover
possible rejects. When I collected them, a zero defect gave me six boards, and
as this 'someone' didn't collect, I still have them all.

With two coil drivers and six injector or relay drivers on board, plus a small
scratch pad area - I would like to think it will do for engine management.
Just got to get the software running right.

Interested ?

Regards, Paul.


On Mon, 27 Mar 2000, you wrote:
> Paul Corner mentioned a home built EFI project: (complete quotation below)
> 
> >I've been playing around with . . .
> . . . ending up with a 12MHz 8051 based design.
> WWhat state of play are others at ?
> 
> 
> Hi, Paul,
> I have an application in mind for a custom ECU, myself.  I'm curious just 
> _which_ '8051' you have chosen.  I have a so-far unused Dallas
> "Speed It uP" (Dallas' own pun) DS80C320, which is, as it sounds, a fancy 
> 8032, but with a high clock speed and reduced clock-cycles per instruction.  
> After a bit of (attempted!) rational thought, I have considered strongly 
> using a Motorola processor (designed for the application), if not the 
> (totally irrational?) Infineon AUDO TC1775 TriCore, which is also aimed at 
> engine management (just plain 'heavy sand' - fun).
> 
> A "batch of boards", you wrote;  is this an idea for production?
> 
> What's your application?
> 
> Mike
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