[Diy_efi] Measuring Pulse Width/Duty Cycle of an Injector?

[Chris McKinnon]

I think that code for the 16F877 will run on the 18F452 without changes. To
go from the 16F876 to the 877 is just different pin assignments IIRC. I has
been a while since I looked at this though so I might be mistaken...

As a side note, does anyone know what program the schematic is for? It
doesn't seem to be Protel, PSpice or CircuitMaker.

Chris

>No worries t,
>     I will check it out.  I am so glad to her something positive.  I
>would love to look at the code.  I'm sure I could take anything for
>the 16f and use it will a little modification on the 18f452.  Thanks,
> Marcello
>
>
>
>> Marcello
>> Sorry for the late post on this.
>> Someone inquired as to the accuracy of the posted pulse width meters.
>> The one I posted "PWMETER" that used a 16f876 counts 1 us clock pulses,
>> so I think it will provide the accuracy you need and then some.
>>
>>
>> t
>> -----Original Message-----
>> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]
>> On Behalf Of Marcello A. Belloli
>> Sent: Tuesday, May 24, 2005 7:11 AM
>> To: diy_efi at diy-efi.org
>> Subject: RE: [Diy_efi] Measuring Pulse Width/Duty Cycle of an Injector?
>>
>> Honda Acura OBD 0 cars used a system of Peak and pulse width modulate.
>> I
>> am not sure if this was or is a bosch system.  I didn't know I was going
>> to have to deal with these until I was halfway done with everything
>> else.
>> All I know is it sucks.  The later type used in OBD I cars just reduces
>> the voltage.  And doesn't make my head hurt.
>>
>> Marcello
>>
>>
>>