1.5 us to 2 us is what people seem to get with the older Marlin code. The newer code has a bit more in-between the turn on and turn off. People seem to be getting about 2X the pulse width with the newer code. If it turns out to be an issue, dropping another 1us delay in the Marlin code is a real simple fix.
The minimum pulse width for the new version of the DQ542 came out of the Wanti doc's. The 5us comes from the docs on a re-labeled version of the same controller. Those doc's also have the same minimum pulse width info.
Thanks for the heads up in your previous post that got me digging into all of that.
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Just to link things up for any poor soul trying to follow my twists and turns in building a franken-LISA, there is a thread on Concept Forge with the details.
[forum.conceptforge.org]
The minimum pulse width for the new version of the DQ542 came out of the Wanti doc's. The 5us comes from the docs on a re-labeled version of the same controller. Those doc's also have the same minimum pulse width info.
Thanks for the heads up in your previous post that got me digging into all of that.
------------------
Just to link things up for any poor soul trying to follow my twists and turns in building a franken-LISA, there is a thread on Concept Forge with the details.
[forum.conceptforge.org]