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YosysHQ / apicula

Project Apicula 🐝: bitstream documentation for Gowin FPGAs
MIT License
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Fix OPEN_DRAIN IO attribute #194

Closed yrabbit closed 1 year ago

yrabbit commented 1 year ago

The coding of the OPEN_DRAIN attribute turned out to be not so unambiguous. It looks like there is ON / OFF and one more default state.

As a temporary measure, setting OPEN_DRAIN=OFF is ignored, but you use OPENDRAIN=ON at your own peril and risk.