erainstruments / erasynth-firmware

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Enhancement Request: Reference frequency offset/scale factor #1

Open orinem opened 6 years ago

orinem commented 6 years ago

Currently, it is assumed by the firmware that the reference frequency is exactly 10MHz. Even when in spec., the TCXO/OXCO can be a few Hz out.

Since it's not adjustable at the hardware level, I suggest that the ability to enter the real reference frequency be added to the firmware. This could then be used to internally scale the frequencies requested by the user such that the output frequency matches the requested frequency as closely as possible.

I'd suggest that such a real frequency value should allow resolution of milli-Hertz or better (even though most will not be able to measure it that accurately).