AWJ |
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Reged: 03/08/05
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Posts: 936
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Loc: Ottawa, Ontario
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Re: How to change refresh rate in MAME drivers?
01/27/11 01:15 AM
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> > Nice to see your sync measuring device is working perfectly, caius! > > > > Andrew > > Yes, with the help of Guru (yes, always him) I solved my trouble.It was needed to use > a low-pass filter (I built one with a cut-off frequency of 72.4 Hz.Now the readings > are very stable and precise!
Is your device fast enough to measure horizontal sync as well? Knowing the exact vertical frequency of a board is nice, but even better is knowing the number of scanlines in a frame and the VBlank duration.
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