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AD9838 Eval Board Possible Problem

Question asked by djs62 on Mar 19, 2012
Latest reply on Mar 20, 2012 by musach

I have a possible problem with a AD9838 Eval Board connected to the SDP-CB1Z BlackFin Board. I can load frequencies with no problem but I cannot control the frequency registers externally. It seems the Blackfin will not relinquish control. The Fselect line seems to be held low at all times. I can change it through software control but not hardware. Any Ideas?