Hi Martin, Glad to hear that things have improved! The DAC and PGA register settings for each channel (Red, Green, Blue) should be adjusted for the following goals. Adjust DAC values until the average values for the black lines are at approximately 5% of the full scale value. For a CIS sensor the Even/Odd feature doesn’t need to be enabled, so the Even DAC values are the only ones that need to be adjusted. Adjust PGA values until the average values for a bright white signal (the brightest expected) is near 90 to 95% of the full scale value. The settings above can be done manually or the Automatic Black and White Level Calibration Loops can be used to do it automatically. See Section 7.4.12 of the datasheet for more information. Here are the basics: If the sensor has reference dark pixels, the Black level calibration features may be used to automatically adjust the DAC values until the target dark level values are met. If the instrument has a calibration step where a bright white calibration image is available the White level calibration features can be used to set the PGA values until the target brightness value is met. Hope this helps. Regards, Hooman
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