Digilent Discovery - I2C Address

[swapnilbarot]

I am working on interfacing the Digilent Discovery device with an IC via I2C. The IC is located at address: 0x9C. When I try to input that address into the WaveForms application, it automatically defaults to 0x7F (see image attached) and as a result, I cannot communicate to the IC. My hunch is that DD does not support 10-bit I2C addressing (only 7-bit) but I am unable to confirm this. Any help with this topic will be greatly appreciated. Thanks!

 

[JColvin]

Hi @swapnilbarot,

You are correct that only 7-bit addresses are supported, as per the WaveForms developer's comment here:

This limitation highlighted in the Help Tab for the Protocol Section also still listed in the latest beta version (https://forum.digilent.com/topic/8908-waveforms-beta-download/, 3.20.28 at time of writing).

Let me know if you have any questions.

Thanks,
JColvin