Measuring 30b CPU speed reduction

[Csaba Tizedes]

(08-14-2015 09:37 PM)Marcus von Cube Wrote:  The exact figures must come from the authors of the 30b firmware but from what I have understood, the ratio should be some 38 MHz / 2 MHz. So the speed reduction factor is around 19.

Thank you - but I think these values are not right OR I'm totally wrong.
Check the attached pdf file. You can find the whole measurement from 0 sec to 60 secs. As you can see the data points are fits well to two lines and the intersection is approx. at 2 sec (not 1 sec) - I'm a mechanical engineer and I'm experienced to measuring something and I was very careful during this measurement.

The values of the two slope is the speed of counting (count/sec dimension). You can see the change at 2 sec and the ratio is only 3.27 (the original ratio is based on that the change of CPU speed is occured at 1 sec)

What is your opinion?

Csaba