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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...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Hello there,

i have the same problem.

Board: DE0_NANO_SOC

Quartus: Version 15.1

I took the GHRD from the CD and added an I2C_2 for FPGA, I also added the IO_BUFFF the the FPGA design. Complied all and created an new .rbf and .dtb .

I do have the I2C in Linux under Devices. I took the Code for the gsensor from the example and modified it for my purposes.

When i execute the code i will get an: i2c_designware ffc06000.i2c: controller timed outright after i try to write into the i2c_2 file.

It would be nice to get a tip where to search or what to do.

Best Regards