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Altera_Forum's avatar
Altera_Forum
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17 years ago

Cyclone 3 I2C

Hi, I had a question about I2C on the Cyclone III. I have a design that uses some constants I would like to be able to change from a PC in real time. Is it possible to issue commands over the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Well, the interface to the PC is actually through a USB controller (separate IC) and the USB controller has an I2C master on it that could talk to the FPGA. The USB controller also has UART so I suppose I could try that. Seemed like overkill to change like 16 bits of data though. Would I2C not work for this?

Thanks,

Andrew