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spareadc ?
Posted: Mon Jan 24, 2011 2:05 pm
by turbo355
Is PT7 (processor pin 10) hooked to AN07 (processor pin 34)?
The reason i ask is because we wanted to use spareadc2 and it seems it is hooked to PT7 at the processor , we can turn PT7 on in the output port settings and the ADC7 gauge will go from 14 to 1024 as PT7 toggles on and off but stays at 14 with our 0-5v sensor hooked up.
Re: spareadc ?
Posted: Tue Jan 25, 2011 7:01 am
by 750essess
I ran into this just yesterday trying to hook up a fuel pressure sensor. If u use pin 5 on the amp seal, adc7 doesn't work. Adc7 does work on pin 29. This is with extra code 3.0.1x
Re: spareadc ?
Posted: Tue Jan 25, 2011 4:30 pm
by grippo
PT7 was tied to ADC7 so the same pin could be used for a voltage or frequency based MAF. I you are not using a Frequency-based MAF, then make sure this isn't set in MT/TS and makes sure PT7 isn't selected as a spare port output. If configured that way then make sure you haven't indicated you have a second EGO sensor. If you haven't, then you should be able to read and record ADC7 as a voltage on the knock sensor gauge, but leave knock control disabled.
The connection should be to pin 5, pin 29 is tied to ADC6. These are hardware connections, the same for all software, but the output variable you read the adcs can be anything. The above paragraph applies to standard code.