From: "Joe Barr" 


Fascinating!  Thanks, Tony.

On Wed, 30 Oct 2002 21:57:35 +0000, Tony Williams wrote:

> Joe Barr wrote:
> [snip]
>> Anybody know what they use onboard for that kind of stuff in the F1 cars?
>>
>
> I don't know about these days, but Ford used to use an in-house OS
> running on an Intel 8061 clocked at about 20MHz with 42K of program
> memory. The 8061 was a custom CPU produced only for Ford. Basically an
> 8051 with some extra A/D and D/A converters and a fancy hardware
> interrupt scheduler.
>
> The F1 build was based on the standard EFI code you'd in in a family
> saloon but heavily modified at the code level (as opposed to the
> after-market chips you can buy which only have tweaked engine map data).
>
> As well as running the engine the same EEC-IV unit provided at least
> some of the telemetry, but I don't know what other monitoring systems
> they had on board.
>
> The whole system was written in assembler and we used to
> laugh at the idea of using a high level language. The hardware we had at
> the time (mid '80s) just couldn't have handled the overhead.
>
> Anyone got some more up to date info?

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