We’re using a ZED Link Duo connected to our carrier board via a 22-to-15 pin FPC cable. We often see glitches (purple bars, distortions, noise) that we suspect are caused by signal integrity issues, since we can sometimes fix them by repositioning or replugging the cables.
Could you recommend specific FPC cables that you’ve tested and confirmed to work reliably? We’ve tried several, but all the ones we’ve been able to source are longer (15 or 20 cm) than the recommended 12 cm.