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Fix IO attributes and Z-1 PLL #196

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yrabbit
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@yrabbit yrabbit commented Aug 25, 2023

The GW1NZ-1 has PLL power saving enabled by default. We turn it off.

And also we continue to select the formula for setting the OPENDRAIN flag, which, as it turned out, interferes with the processing of PULLMODE

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yrabbit commented Aug 28, 2023

let's wait for confirmation from Catherine?

@pepijndevos
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Yea

@whitequark
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I can confirm the mismatches with proprietary tools are gone. The netlist I had issues with is translated equally with Apicula and Gowin tools with this patch.

@yrabbit yrabbit closed this Aug 30, 2023
@yrabbit yrabbit deleted the z1-pll branch September 2, 2023 21:58
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