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you will get any frequency.
In many cases the exact pulse frequency wouldn't be as a clean clock but over a window of time it will be correct and for stepper motor it should be more than enough.
example 50MHz * 2333456/2^32 = ?
Anyway from 50MHz you cannot get exact frequencies except for cases like half/quarter etc unless you use variable analogue PLL
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you are right.
"from 50MHz you cannot get exact frequencies except for cases like half/quarter etc."
I have try s lot,but fail.I cannot get exact frequencies except for cases like half/quarter.
I will try your suggestion,hope this is average frequency really enough for stepper motor.
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