Use i2c2 and i2s2 simultaneously on STM32F103RC/D/E?

podom · ‎2009-12-06

Posted on December 06, 2009 at 11:59

tomas23 · ‎2011-05-17

Posted on May 17, 2011 at 13:33

Check errata sheet, if such conflict occurs. There is Alternate Function conflicts section...

podom · ‎2011-05-17

Posted on May 17, 2011 at 13:33

I'm designing a board using the STM32F103RC. I'm going to be using an I2S codec with I2C control interface, and I'm planning to use I2S2 and I2C2. The I2S2_WS and I2C2_SMBA lines are both on PB12 (pin 33).

I don't think there should be a problem, since SMBA is an optional line, but I wanted to see if anyone knows whether there would be an issue with this combination or has successfully used a setup like this. There's nothing in the errata sheet.

-Philip Odom