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yes,i have tried different data rate,1.6Gbps,2Gbps,4Gbps,5Gbps,8Gbps...sometimes it's all work well,but the result is not correct for most of times.
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How do you determine that the data is not correct? You said you were only configuring the transceiver as a transmitter. I assume that means the receiver is being used to determine that things are bad. How do you know it is not the receiver that is bad?
Can you loop the transmitter back to a receiver channel? Actually, there is an internal loopback too, have you tested that?
Do you AC-couple to your receiver, or DC-couple? Perhaps you are stressing the transmitter drivers.
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for the reference clock,i'm sure it's good. i use Oscilloscope to test the clock,and it's displays well.
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Ok.
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the board is not custom board,it's made by ourselves,and we don't have any Altera reference board to compare .May be it's the problem of the board,but the pin Pins are connected correctly,and power supplies well.
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Do you have more than one of these boards? Do they all behave the same?
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i will try the way of SignalTap II to test if all the control signal is right.
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Its a very useful tool.
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i hope there is something wrong in my logic, but not the board.
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Good luck!
Cheers,
Dave
Honored Contributor
