Today I use firmware v1_10 do some test again. I use a?oscilloscope watching R41 and R40(CLK0 and CLK1), and found something strange.?In theory, CLK0 and CLK1 should have the same frequency but be 90 degrees phase different. But when doing audio filter sweep what I saw is like this:
The yellow channel is CLK0 and green channel is CLK1. From this images we can see that frequency and phase are totaly wrong. Then I return to firmware v1_05, everything return fine. So I think it's probably a firmware incompatibility issue.?But the strange thing is, am I the only one who has this problem?
Here is my QDX PCB's photo:
Hope who use the same version PCB can give me some feedback about firmware v1_10. Thanks
