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For Progemies: The cable is around 6-7 inches, would be hard to reduce its length any further, though the max try would reduce it to 5 inches I think !
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Xinjia,
Do you have a chance to slow down the data clock? If you get errors even with 1MHz clock, then it's a race condition. Bus if the comm is fine at 1MHz and you'll start to get errors when dialling up the clock frequency closer to 50MHz, it must be a signal integrity issue.
The cable should have a good ground return path and the clock and data should be separated with a ground to reduce cross talk. If possible, try two coaxial cables for the signals.
Honored Contributor
