PIC Questions
Jemison Richard
JemisonR at tce.com
Wed Nov 4 13:47:23 GMT 1998
Thank Orin,
You're right. Lots of folks jumped in a helped me out. Thank you all.
Now, back to school.......
rick
> -----Original Message-----
> From: Orin Eman [SMTP:orin at wolfenet.com]
> Sent: Tuesday, November 03, 1998 8:40 PM
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: PIC Questions
>
>
> > For us novices, could you briefly explain what a PIC is exactly and
> describe
>
> This has now been well covered!
>
> > (manufacturer / model / part#) the board you mention. Also a brief
>
> Manufacturer: me
> Model: "the data aq board"
> Part #: don't have one ;)
>
> It's an Audi 5 cylinder turbo engine specific board, though it could
> be adapted to other Bosch engine management systems. It aquires
> ignition timing, a couple of duty cycles, 3 temperatures via
> thermocouples and some analog values. These are displayed on
> an LCD (2x20) and dumped to serial.
>
> > explanation of why you would prefer the PIC board to the HC11 (assuming
> you
> > could find an HC11 board).
>
> Advantage to the PIC is that you need no external components other than
> a crystal and a couple of caps to make it run. HC11 needs RAM at least
> (onboard probably not enough) and probably EPROM for final program.
> Thats two 28 pin or so chips as well as the CPU. Yes, there are HC11s
> with onboard EEPROM, but it is too small to be really useful for code.
>
> Orin.
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