Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Problem using more than 2 i2c devices

We have instantiated 7 i2c controllers in our FPGA. I modified the busses/i2c-oc.c code to handle 7 of these instead of just 2. Basically, I just copied the two instances provided and changed...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

We are using jffs2 for our filesystem.

As it turns out, I had a problem with one of my entries for the last instance. It was erroneously overwriting the 2nd instance, during the part where it adds the adapter to the linked list. This caused the wierd behavior.

After fixing this problem, everything worked.

We have 7 working i2c ports!