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洋人的建議* P, `8 w1 L' l* o! D
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如果是在仿真時發現問題
; E8 o! z/ v O2 @If this is in a simulation:6 o- R& P! p9 o
- 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.- |1 b9 K: N9 n2 v: z7 W1 L
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如果是在量測時發現問題
2 M/ }% Q8 L' F; @( DOr if this is a lab measurement:% }7 G' r; x2 m/ e8 m
- 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.! l0 j p y" p; q$ E
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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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