Rasp Pi SPI Initial Settings

SigmaDSP & SigmaStudio ElsaDog Dec 31, 2025 00:00 0 replies Original on forum ↗

Thread Summary

The user was unable to establish SPI communication with an ADAU1467 DSP on a Raspberry Pi. The solution involved using SPI mode 0 or 3, ensuring the correct pin connections on J1 (slave control port), and toggling the CS line to switch from I2C to SPI mode. The user also confirmed that a readback cell can be used to monitor the status of a logic gate in the DSP flow.
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ElsaDog Question

Dec 31, 2025 00:00

I am doing initial interface to a R-pi using J1 on the board. MISO, SS, MOSI, and SCLK are all verified. Can't seem to establish com with the board and read the registers. Couple questions.

1) Do I need to buffer the SS line with the Pi?

2) Do I need to change the DIP or boot switches on the board?

3) Are there any configuration options in SS that need to be changed/set for these lines?

Any reference examples would be appreciated.

Thanks!

Audio Signal Processors

software

4.7

adau1467

SigmaDSP Audio Processors

SPI Raspberry PI

adau1466

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