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Design APIs for setting resolution of instruments #340

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azonenberg opened this issue Nov 14, 2020 · 0 comments

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azonenberg commented Nov 14, 2020

Most oscilloscopes have fixed ADC resolution, but some are variable. We need APIs for configuring this.

There are three architectures to consider:

Resolution is global for the whole instrument (LeCroy HDO9000)
Resolution is independently configurable for two or more groups of channels (STARSHIPRAIDER BLONDEL)
Resolution is independently configurable per channel (STARSHIPRAIDER DUDDELL)

There may be one (degenerate case), two, or arbitrarily many legal bit depths. Bit depth may vary with other configurations.

LeCroy HDO9000 is 9 bit on all channels, but 10 bit when interleaving is enabled
HMCAD1520 ADC can be 8, 12, or 14 bit resolution, and legal clock frequencies vary with resolution

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cca8393

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