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StefanoMarsi's avatar
StefanoMarsi
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

CYCLONE V - HPS and I2C Peripheral Pin

Hi Community I'm testing the I2C interface embedded in CycloneV - HPS. - However, if I export peripherals signals through the HPS I/O Set everything works pretty well. - But If I switch to FPG...
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StefanoMarsi's avatar
StefanoMarsi
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

However, looking in detail at the previous images there is another slight difference:

- When the HPS pins are used, the output port of the I2C peripherals is named I2C_CLK_OE and I2C_DATA_OE
- While when I try to drive them to the FPGA pins they are named OUT_CLK and OUT_DATA

It seems quite strange the adoption of different port names ! (may be different signals are involved !?)