Hi!
To run diagnostics, I have the LED Test enabled following the sequence outlined in the datasheet. This works well for G and B segments (D1 to D6).
However, the R segments (D7 to D9) sometimes do not show the correct Vf voltage in first pass. A Re-read of register 42 gives the expected result. Is there a certain delay that needs to be inserted for D7-D9?
Thanks,
Vidya