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Problems with AD9928

Question asked by forest on Mar 19, 2015
Latest reply on Mar 25, 2015 by forest

We met a strange problem in using AD9928, which have troubled us several days.

 

In our boards, CLI, RST, SDATA, SCK, SL, SYNC, VD, HD are connected to FPGA, VDR_EN is grounded because we generate the vertical driver signals by FPGA.

 

We tried to set registers, but it seems that only registers address 0x00 to 0xFF (fixed reg area) could work, registers address after 0x400 (configurable reg area) do not work at all.

 

Any suggestions are appreciated.

 

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