calculator numconv function

I understand sir. But I get no digital signal as in the above pic when convert analog to digital. Why please 

SORRY. I achieved

while converted digital to analog, high and low voltages range is; -4*840m for low and 3*840m for the decimals between  -4 and 3?

(vhi+vlo)/2 this formula is constant?

That's rather up to you. It depends on what you want the range of the final "analog" representation of the bus to be. It could be -4 and 3. I don't really see why you'd need to multiply it by 840mV.

because first high bit voltage level 840m

I assume you're referring to the X: (vhi+vlo)/2. That is indicating what voltage would be used if there are any "unknowns" in the digital waveform. There won't be if you use the "Center" mode in the analog to digital (you'll only get X if you have used the High/Low setting on analog to Digital, and the signal stays between the low and the high for longer than a certain time).

Andrew

abdurrahman0234 said:

because first high bit voltage level 840m

As I said, it's entirely up to you. I can't really see why you would need to scale it, but presumably you know what you're trying to do with the result!

Anyway, hopefully all is clear now.

Andrew 

I wanted to say, for example, -4 deciöal number, voltage level 840*-4 or x*-4. x depends on the before voltage level

thanks very much Sir.  I get below error while simulate psd.How can I solve this?

The signal x-axis vector values are not uniformely distributed. Data was interpolalated, which would create numerical noise and differences. To remove these errors, use uniform raw data points.