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洋人的建議
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如果是在仿真時發現問題
$ p) O7 x- L7 }$ H5 ]6 tIf this is in a simulation:
$ @! ~1 m6 ?1 Z: o! h& L- Make sure you are looking at the receiver signal.
- Make sure your IBIS model waveforms for the driver look good.
- Make sure you are using an LVCMOS or similar input impedance receiver.
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如果是在量測時發現問題
; a5 w4 r! f3 l. {$ e/ C8 F' x) h' SOr if this is a lab measurement:; T: j) ]6 z9 ~( O" c, w8 N: G' h
- Make sure you are looking at the receiver signal.
- When measuring, make sure you are using a high bandwidth, high-impedance probe, that is connected close to the receiver without any large wires on the signal probe or the reference connection.
- If you are doing all that, this glitch could also be crosstalk or ground bounce, so you may want to look into that as well.
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发表于 2017-9-18 09:34
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支持！
反对！
发表于 2017-9-18 19:58
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