v01d commented on pull request #2717: URL: https://github.com/apache/incubator-nuttx/pull/2717#issuecomment-762815986
> > No, no address lines are exposed. The point is that I2C/SDA are not shared so I need five different pairs of SDA/SCL (or changing I2C/SDA pins of peripheral on the fly, as I mentioned, but not too happy about it). > > I am referring to the pins that select the match address, not SDA/SCL. I2C parts usually have 1 to 3 of them to specify 1 to 3 bits of the full 7 bit address that the chip will respond to. That hackaday reference talks about about using one of these address match lines like a "chip select." Driving different address match bits can make different parts respond to the same address, for example. Yes, I understand. But my case is not about being limited by overlapping address or too many devices on a bus, but the fact that I have five I2C devices on five separate buses and only have two hardware I2C peripherals. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
