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Due to a seemingly-untrackable error, we are having issues with our PIC. Our PIC is mounted on an evaluation board.

The Device ID being read is not consistent, nor is it correct.

Instead of the ...

I'm bumping this topic, because I believe we have found an interesting answer.

So, my group received a replacement evaluation board. Due to other priorities, we never opened the package, as we ne ...

I have a (most likely final) update for this thread.

So, we went back through the code and the set-up and found what we believe to be the issues:

WAV_CONFIG (0x27) was configured wrong for a s ...

I do not have a readily-available schematic, since I've been building it on the board piece-by-piece.

I did take your suggestion, asmboy, and after double-checking the datasheet, I removed the USB ...

asmboy: I believe the reason we chose this chip was due to the size of the DAC, specifically its resolution.

temtronic: I have my system set up between two boards. The first board has my PIC and su ...

i've worked with DDS parts from AD a lot -
and not kidding when i say
i would never use that part just for sine output, lacking HUGE financial incentive. If you really have no choice, your work m ...

Just noticed that there was a new response. I do have a new update:

I noticed that the registers are saving correctly. I verified all of the registers listed in my previous code post, and they are ...

asmboy: I appreciate the attempts to help resolve my issue.

I went through AD's application notes yesterday, and likewise didn't see any help.

PCM programmer: Thanks for pointing that out.

I just noticed in Figure 33 that in 4-wire (which it defaults to), the reads are performed on the SDIO line, while the writes have the address on SDIO, and the data on SDO/SDI2/DOUT.

Is spi_xfer a ...

The AD9102 is required for this project.

I'm using a 20 MHz clock (single-ended), being sent to CLKP, with CLKN grounded via .1uF capacitor.

as simple as i can say it
SPI_xfer will not work as YOU ARE USING it in part
depending on how you are connected re pins 1 and 7

since for some commands on combined SDIO you need to
switch TR ...

before i go further
this

spi_xfer((addr[i] << 16) && val[i]);

does not MAKE SENSE ON SEVERAL COUNTS

1- YOU ARE NOT ASSIGNING THE OUTPUT OF SPI_ ...

The data sheet issue i refer to is the single or double command possibility.

Are you referring to the Double SPI mode for SRAM?

Here is my program right now:

(the 32-bit writing was originall ...

After reading the data sheet for the AD9102
i think you are going to have much education and entertainment
ahead of you in programming a driver using
code like this example.

spi_xfer( ((data& ...

Perfect, thank you! Now I can focus on programming the DDS.