I2C slave without subaddressing

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable

 I need to make a I2C slave without subadressing using the CY8C21534. The data to read and write is always 2 byte so with every read and write, these both bytes are transferred.

   

In fact the slave should act as a PCA8575 I2C port expander.

   

What I2C module can I best use for this? EZI2C always seems to expect a subadress.

   

Is there already an example for this?

   

Thanks.

0 Likes
1 Reply
Anonymous
Not applicable

 Problem solved.

   

AN50987 helped me a lot.

0 Likes