I try to load the registers of AD9959, but no signal on the output.
The sequence is shown on the figures:
At first the RST during 100 us, then trying to write 11 bytes in the AD9959. Load02.pg
For the beginning two bytes: 0x00 0x80, and IO_UPDATE pulse. Load02_1.jpg
Then 4 bytes 0x01 0xD0 0x00 0x00, and IO_UPDATE pulse. Load02_2.jpg
At the end, 5 bytes 0x04 0x33 0x33 0x33 0x33, and IO_UPDATE pulse. Load02_3.jpg (Frequency = 100 MHz)
But there are no signal on the Output of AD9959. What is wrong? How can I load the registers of AD9959?
Thank you very much.