[myhdl-list] Tristate top-level ports, (was Hello World)
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From: Christopher F. <chr...@gm...> - 2015-07-09 18:50:28
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<snip> > > I submitted a Pull Request to fix that bug. Josy, Do you know which PR this was? Regards, Chris > One observation: in your code you are actually using a TriState pin to > drive.read the I2C_SDAT. In reality the SDa pin in the I2C is an > opendrain, with a pull-up in the circuit. So you can only drive it *low* > and keep it tristated otherwise. > > Regards, > > Josy |