Hi @faefwed,
test = AXiIIC( ol.ip_dict[" ??? "] )
The key here is the name of the AXI IIC IP. Explore the ip_dict
first and you will be able to find the name of the IP. Provided the IP is in your overlay.
test.send( address, data, length, 0)
Please read the documentation here to find out what address represents
https://pynq.readthedocs.io/en/v2.6.1/pynq_libraries/axiiic.html
Mario