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I have read ADAU1772 audio codec datasheet but there is no information about internal DSP's instruction set and how to program it. There is a guide for evaluation board with ADAU1772 but I do not have that board. What is more pins of my ADAU1772 are permanently connected to FPGA so I have to program it using FPGA. I just need information which registers inside audio codec I should write and what are possible instructions. Unfortunately I can not find any information on Analog Devices website.

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  • \$\begingroup\$ Look up sigmadsp software \$\endgroup\$ – Some Hardware Guy Nov 15 '14 at 23:37
  • \$\begingroup\$ I have read about SigmaStudio but I am not able to program ADAU1772 directly using it because the only way to communicate with codec is via FPGA. What is more SigmaStudio does not support Linux and I found no tutorial how to make it run on Ubuntu. I wish I found some instruction how to program DSP in low level way. \$\endgroup\$ – Al Bundy Nov 16 '14 at 0:13
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The instruction set of the Sigma DSP family is not available.

The only way to create a program is to use the Sigma DSP software.

When you want to load this program into the chip, you can do this in several ways:

  • using the Sigma DSP software
  • using a microcontroller connected through i2c: but read the docs, it is not that easy!
  • by telling the adau to autoload its program from an i2c eeprom
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