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DDS controlled programing without its software

Question asked by SHR on Dec 15, 2016
Latest reply on Jan 4, 2017 by JLKeip

I just want to program DDS using my own software so for that i need to know formulas, according to which register updates(writes) its values for different frequencies, amplitude and phase. Moreover, how the register values be calculated when i enter 15MHz from 05MHz. ALso let me know where could i found deeply about its software calulation because i throughly read the AD9910 documentation i did'nt fund anything related to it.