krontech/chronos-cam-app

Horizontal line persists after black cal on chronos 2.

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The horizontal shutter line does not appear to be completely fixed by a black calibration on the lux2100 sensor driver. At some exposure settings the black line still remains after calibration, and the magnitude of the defect is generally worse.

This suggests there is a problem in the timing signals that are being driven out to the lux2100, and that they are not safely transitioning during the hblank period, and are affecting the line readout period.

I think this will require an FPGA rebuild to fix, since the timing program used by the API doesn't appear to correctly time the ABN transitions with the sensor line readout period, my attempts to bodge around it with the ABN pulsed modes don't seem to work as intended and there are bugs in the implementation of the wavetableLatch mode.

Fortunately, my experimental FPGA builds already have this feature implemented.

This should be resolved as of: krontech/pychronos@2c2a0ab

No changes were necessary to camApp, since this was all handled in the pychronos and the FPGA.