I made ion sensor.
100-400V regulated switcher(most part from atx power supply)
and this senzor
http://vvnet.fi/ville/ion/DIY-Ion-Sensing-2.pdf
And i did same measurement(290 and 330V).
2000rpm spark 22 BTDC
idle
Plan is use AT91SAM7S128 for ppp calculation (and maby knock detection), connect to vems via(can, spi or ?)
Any suggestion?
Before comlicated solutions:
The scoping becomes much easy to see if VEMS switch some output @ 15...20deg ATDC.
May be we can ask developers?
How difficult would it be to implement such feature in the Firmware? By the little knowlegde I have it seems that we need to modify the coils and have a tool that gives VEMS an input signal.
- for knock control i would be easy to implement(just connect signal to knock chip). But for PPP finding it's impossible to implement only to firmware. It needs one more CPU to process signal.