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AD9959 Eval Board bringup

Question asked by Shahid_DE Employee on May 18, 2015
Latest reply on May 18, 2015 by LouijieC

Hello,

 

We are using 3-wire mode as standard and reconfigured the CSR reg 0x00 by writing 0xF2 value.

However we don't see any response from the Eval board.

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We found a 1kOhm resistor to GND on EvalBoard. We have on our
test card a pull up resistor (2.61kOm to 3.3V). That explains the value of
SDIO_2. But this should not have an influence.

 

Normally on SPI Bus pull up is used.

There is no reaction of AD9959.

We also triggered the SYNC_I/O with no success.

Can you give us a hint?

 

Best Regards

SI

 

DSB KennyG

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