software oscilloscope rs232
Hello all.
First of all, thanks for the people who provided so nice links.
But I can see that all the links are related to real time digital storage osciloscopes. Those designs are always hard to make and depend on the ADC used (that should be very fast to be able to get a high sampling rate).
There's another solution that was not quoted here.
To use a non real-time solution. I mean, a sampling head.
Since in most of the cases when we are doing measurements we are triggering by the waveform been measured or another reference signal. And the measured waveform doesn't change we can take one sample (one point) every trigger. And then reconstruct the waveform by software.
This is the method used by all osciloscopes in the GHz range (tektronix, hp, etc...)
This solution would certainly lead to very simple implementations. Nomemory needed, etc....
Does anybody have any information about such a sampling-head for low frequencies like 100Ms/s....?
Thanks to all.
S.