AUDIS
08.02.2007
So reality is: my first Genboarded cars will be Audi 20V turbo and n/a.
First question is about R48 2k7 resistor on V3.3 board:
So becomes LM1815 output signal to uControler comes 5V high and ~3.9V low?
(pullup is HW modification for AudiTrigger)
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Second question:
I imitate Audi Trigger using WAW file: 270 pulses on right, 1 pulse on left chanel. 1.0.53 firmware.
Everything works OK until ~6000Rpm. Then starts trigger errors. After 7000 - no sync at all.
It seems thigs goes even worther with new 1.1.11 firmware.
How to sort out what is cause: sound card resolution or something with Genboard?
Disquiet is because 2 of 3 Audis must rev up higher than 7000!
- Audi have restricted turbo by rules ~300hp max. I think ~500Nm@~3500 and ~300Hp@~5000
- is project with big turbo and target power >500Hp
- is n/a engine with deep modificatons for rallying ~250Nm@~5200 ~230hp@~6900
here is my waw files:
Audi http://www.vems.hu/files/GintsK/Audi_270&1_4690Rpm.wav
Audi http://www.vems.hu/files/GintsK/Audi_270&1_6840Rpm.wav
60-2 http://www.vems.hu/files/GintsK/60-2.wav
36-1 http://www.vems.hu/files/GintsK/36-1.wav
I use http://www.goldwave.com/ Goldwave sound software. They have evaluation version:
free and very sutable: simly loop .waw say 8000 times. And under tools is easy to control playback speed evenly.
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third question:
c30 cap between primary 135tooth VR input and ground? Is't it too big?? 
This document: http://www.vems.hu/wiki/index.php?page=MembersPage%2FTonciLoncar%2FQuestionsAndAnswers beide of all is mention:
" ''...if there is noise C30 (which helps shape the input signal) may be broken,
try replacing it if you don't have a scope 1nF is will give you a 16kHz filter frequency,
you could easily have a bit more here for most applications....''"
But 16kHz is 7111Rpm for audi 135 teeth Wheel!
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