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Altera_Forum
Honored Contributor
Honored ContributorNCO 8.1 Problem
HI, no matter what output freq. I set my NCO to have it is always coming out at 20 Mhz, or this is what I am measuring on the scope. I don't think this was happening when i was using quartus 6....
Altera_ForumHonored Contributor
Honored ContributorHi,
On the note of lpm_constant... a friendly advice with respect. For god's sake use inference. Designers now tend to use inference even for large memory blocks. This results in compact, readable, debuggable, time-saving, and portable code. To use lpm_constant is like going back centuries. I don't know why altera wouldn't remove this nonsense from their list of cores. I am saying that because I suffered so much when I took over a design and it was having lterally thousands of modules including several instants of lpm-constants and flipflops. I kept swearing at everybody as I was trying to find my way through a "Spaghetti" of connections and portmap of signals with names extending full line. kaz
