I have the AD9958/9959 Evaluation Board and want to try to control it via SPI with an arduino.
I tried sending in the SPI Command but somehow I don't see an output. I veryfied the input with the USB Control to be sure I can actually get an output.
I send in the 4 bytes via SPI and then do an IO_Update.
I have the following connections to the board:
VCC_USB connected to 3.3V
DVDD_I/O to 3.3V
GND to GND
DVDD to 1.8V
J10 to 1.8V
I connected SDIO_0,IO_UPDATE,CSB and SCLK to the correct pins of my arduino.
The SPI Output of my arduino is shown below:
I would be greatefull for any input on what my possible mistakes could be as I don't have an idea right now!