PLL on crank angle sensor input >> SSI 67F687 chip

[Ross Forgione]

Is there a location on the Net that I can look at to gain some info on this
or do I need to search around as it were ?

Thanks,

Ross.


At 11:17 6/03/97 -0800, you wrote:
>> basically, the best method is to use a second order or higher software
system to allow for
>> rate-of-change, etc, to interpolate additional accuracy, this can work
very well.
>> 
>> for example, toyota use a 6 tooth per engine revolution cam position
system in some of their
>> engines, yet get very accurate ignition timing, as they use higher order
software approximations
>> to gain additional resolution.
>> 
>> basically, a simple PLL is just not up to the job.
>
>thanks, this is what I suspected.
>
>I'm now looking with interest at the SSI 67F687 Engine Interface
>Peripheral chip.  If any one on the list has used this chip, and has an
>example of how they described there crank/cam angle sensor patterns, it
>would be appreciated.  (Although the data sheet explains the procedure,
>it is hard to interpret without an example).
>
>Thanks
>-- 
>slarnold at postoffice.utas.edu.au
>http://www.geocities.com/MotorCity/1309
>
>