I'll ask about Tx setting of AD9866.
In datasheet P20 Resister Map.
0x09 :Default setting is for hardware Rx gain code via PGA or Tx data port.
0x0A :Default setting is for Tx gain code via SPI control.
That resisters supposed to control by single way.?
So I used default setting AD9866. But Tx read-back resistor data is not correct.
I saw that PGA bit was written to Tx gain code.
Can you advice me to solve problem?
What should I check ?