Hi,

I want to sample a single source 'continuously'. By that I mean I don't want a moment to pass without sampling being done.

I read CD00258017 and the dual fast interleaved moved looks closest to what I am trying to accomplish but it shows an overlap in the sampling areas.

I would like to figure out how to set it up where the exact moment conversion starts on one ADC, the second ADC is sampling, and the exact moment conversion starts on that ADC, the first one is sampling, with no overlapped sampling of the source, and no gaps between sampling being done on the source.

Is it possible to do this?

Thanks,

Robert

I want to sample a single source 'continuously'. By that I mean I don't want a moment to pass without sampling being done.

I read CD00258017 and the dual fast interleaved moved looks closest to what I am trying to accomplish but it shows an overlap in the sampling areas.

I would like to figure out how to set it up where the exact moment conversion starts on one ADC, the second ADC is sampling, and the exact moment conversion starts on that ADC, the first one is sampling, with no overlapped sampling of the source, and no gaps between sampling being done on the source.

Is it possible to do this?

Thanks,

Robert

If you are using STM32F1xx then you could combine slow interleaved mode with sampling time of 13.5 cycles. Then you will have only 0.5 cycle gap every 14 cycles.

With STM32F4xx the gap between sampling intervals could be variable but it can't be less than 2 cycles. So, the minimal gap will be 2 cycles.

But, the question is do you really need such a "continuous" sampling? You must take care to provide a proper sampling rate according to signal spectrum and sufficient sampling intervals depending on signal source impedance but the gap between sampling intervals is not important at all.