WB & logging

[Barry Tisdale]

Thanks, Bob -

I'll have to put a 'scope on the ADC input and check the nature of the
noise.  I'd like to attempt to minimize it first - one of my cylinders has
some shot rings, compression down to 70# from 170# normally - wonder if
this might have something to do w/ it...

I'm using my own software to read the ALDL as well as an 8 channel ADC into
which goes (so far), the WB, fuel pressure & accelerometer.

Could you give me an example of a filter in a higher level language?  Not
familiar w/ H11 opcodes, just Z80 (remember them?) and x86 stuff.

Barry

At 08:27 PM 8/27/01 -0400, you wrote:
>
>Both hardware filtering and software filtering can be done. With the
>DIY-WB I use I placed a .1uf cap at the input to the ADC. This
>coupled with the 1K output impedence creates a low pass filter.

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