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I am trying to program an HMC988 divider. If I program Register 01 (Enables), Reg 02 (Divide select), & Reg 04 (Config), it works correctly.  However, if I try to program Reg 03 (Bias), the part goes to bypass and locks up. It won't accept any additional

Question asked by Ray-Bennett on Jul 19, 2018
Latest reply on Jul 20, 2018 by dyoung1

In the program stream, if I comment out the routine used to program Reg 03, it works correctly without the output bias adjustment.  As soon as the routine is re-enabled, the part locks up.  I monitor SCK, SDI, and SLE.  The data that I programmed is being sent correctly.

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