UPSD3234A I2C SLAVE MODE

a3b · ‎2004-02-26

Posted on February 27, 2004 at 05:29

a3b · ‎2011-05-17

Posted on May 17, 2011 at 11:58

It seems definitly that I am not able to make the slave mode working on PSD3234A.

I made a lot of tests including: interrupt mode, no interrupt, various bus speed, and always the same result: SCL low after own address recognition, and no way to exit this.

Does anybody have an idea to overcome this ?

a3b · ‎2011-05-17

Posted on May 17, 2011 at 11:58

It seems to be that in order to exit the wait condition after receiving own addresse in slave mode, a dummy write in SxDAT register should be done.

This info from Zdenek Nyvlt ST MCU support group .