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Analog inputs/outputs

SigmaDSP & SigmaStudio divineA Feb 10, 2025 00:00 1 replies Original on forum ↗
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divineA Question
Feb 10, 2025 00:00

Hi. We bought an ADAU1467 eval board. The goal is to build a multi purpose 4-6ch amp for our lab which main task would be to test new speaker designs and to find what DSP we need for each individual new active speaker design. The problem is that we are all some kind of audio engineers in our company - we design and build luxury cabinets, passive crossovers, we build our own passive radiators, but there is no software engineer in our team to manage our very first Sigma Studio project. We need Your help! The problem is that we cannot find the way to enable (configure) all inputs and all outputs on that board. Analog IN 32-33 works like a dream and analog OUT 0-1 too. Analog IN 36-37 and analog OUTS 4-5, 8-9, 12-13 does nothing no matter how we treat them. The front page of Sigma Studio looks intuitive and there’s nothing to complain about, but the hardware configuration side is somewhat complicated to get used to. Without previous knowledge or experience we can’t trace the route from analog inputs to analog outputs in settings - there’s everything that’s in betwee, but no clear analog IO configuration. We spent 2 full days reading, watching YouTube videos and trying everything and now it is time to move on. I attached a basic IN and OUT route project file. Amps are working, cables tested. Waiting for a magic. :)Design (Test all inputs all outputs).dspproj

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Harishgowtham Reply
Feb 10, 2025 00:00

Hello divineA,

I can see that it's very easy to miss this little detail. Your schematic looks good, and you are just one step away from getting this to work.

You just have to configure SDATAIOx registers to use other input and outputs of the board. The below attached project has everything already configured. You can directly run it and test all the inputs and outputs of the board. please find the project below.

ADAU1467 Evalboard all inputs_outputs enabled.dspproj

Feel free to reach out if you need further clarification.

Regards,

Harish

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