Need the command format for the AD9106

Hi Jimmie,

Have you checked out the Quick Start Guide included in the AD9106 evaluation software package? I would like to refer you to that if you are looking for examples.

Best Regards

Louijie

Hi Jimmie

I'm afraid I cannot provide that. The code you are asking is hardware dependent and we don't have scripts for PIC microcontroller. But I believe that the quick start guide is helpful in your development since it provides the sequence of register values that is needed to nominally run the device. What I will advise is, as starter, take note of the sequence of code indicated by the quick start guide. Then search the PIC library documentation and look for the function responsible for SPI communication. After, hook up the register values to the functions, and there you can start or branch your development.

Best Regards

Louijie

Hi Jimmie,

The SPI protocol would allow you to access an individual register. Refer to page 21 of the data sheet for more information about the SPI. I'm not familiar on how PIC libraries are implemented but just look at their SPI libraries and make sure that the wordlength to use is 24-bit. (1 byte for the command cycle and 2 bytes for data cycle). I suggest to use the 4 wire SPI protocol for prototyping because of the fact that you're using a separate pin for reading SPI data. Rather than switching between input and output modes for a 3 wire SPI which adds timing considerations to your firmware.

Best Regards

Louijie