Hi AJ_CS,
Why do you want separate sampling rates on separate channels of the same digitizer? What different sampling rates do you want?
But to configure horizontal parameters such as 'min sampling rate' and min record length, I couldn't find any such option to specify the channel. Should it be common to both channels?
You cannot find an option to configure hoirizontal parameters on a channel-per-channel basis because such a concept does not exist in the traditional sense of how a scope is used. Compliant with the concept of IVI, a traditional benchtop oscilloscope will only have one knob or one set of buttons for setting timing parameters for the entire unit. Therefore, there is no horizontal configuration for separate channels on NI digitizers.
I hope that the device is capable of simultaneous sampling and hence channels can be individually configured to different sampling rate.
Similar to a traditional benchtop oscilloscpe, the device is capable of simultaneous sampling. But as mentioned above, the channels cannot be configured for different sampling rates.
However, you can discard data that you think is irrelevant. For instance, if you set CH0 to 100MS/s and CH1 to 50MS/s, then you discard every other sample.
Alternatively, you can use separate digitizers (one channel on each digitizer) and configure them to sample at different rates. You can set separate sample rates on separate NI digitizers and still synchronize them together with TClk.
-Andrew
National Instruments
