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Altera_Forum
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11 years ago

Routing HPS I2C thru FPGA Not Working

Hi I followed Altera's guide AN706 (link below) to route HPS' I2C0 port through the FPGA on the Cyclone V Arrow SoCKit. I included the ALT_IOBUFF buffer as instructed by AN706 guide. But it's n...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Hey,

I seem to have similar problems running the hps_i2c0 as an master:

- I see the hps putting out the correct i2c-address on the bus and the slave reacts with an ack

- The TX_ABRT register says there was no ack and the communication stops

I use an ALT_IOBUFF to connect the pins from FPGA to hps as seen in the application note posted above.

mbp2014 have you found a solution yet?