Jan 09, 2018
01:15 AM
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Jan 09, 2018
01:15 AM
Hi, I'm developing USB3.0 cam solution using FX3. I'm testing codes on my board following AN75779, and there is some confusing point.
FV, LV signals are active high in the example. In my board, I'm using vertical sync(short pulses between frame) as FV, so I think it should be considered as active low.
In State machine, there are transitions using FV or !FV. The problem is this. Is FV means real H signal in state diagram or activated signal?
I have input this signal as active low in interface definition, so activated state means L signal.
This is quite confusing. Please somebody who know this help me.
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Jan 09, 2018
03:15 AM
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Jan 09, 2018
03:15 AM
1 Reply
Jan 09, 2018
03:15 AM
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Jan 09, 2018
03:15 AM
FV means real HIGH signal.