How Do I Get an I2C Host Adapter to Release the SCL Line on an SMBus?

▤ Summary

In my current System Management Bus (SMBus) project, I am applying a repeated start read from the Aardvark adapter, which in this setup is the host (master device). However, the Aardvark adapter can perform most of the activities defined by SMBus protocols, as well as release the bus as needed for your setup. The SCL signal is held low because the master device, the Aardvark adapter, controls the bus. For example, some chips use NAK to indicate busy or something similar, in which case the I2C result flows back to the caller of our API. Additional resources that you may find helpful include the following: If you want more information, feel free to contact us with your questions, or request a demo that applies to your application.

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