Follow-up Comment #11, patch #7559 (project avrdude):
"I don't want to turn this into a "which patch is better" discussion"
Nope, not that at all. I'm just trying to share what I see and what if any
success I'm having.
Thanks for verifying with a logic analyzer.
"Nevertheless nothing of this changes the fact that only a HIGH-->LOW
transition can cause a reset pulse if there is a capacitor between DTR and the
reset pin."
Agreed
"Toggling the line twice always creates at least one H->L transition."
Agreed, and my only concern was really around unintended consequences. I
can't really think of any though.
"Why does your arduino require an additional reset after the bootloader is
done? So far every bootloader I've used automatically starts the application
after the upload is done. No additional external reset required here."
I do not know. There are several things I can't adequately explain with this
board yet.
"Regarding holding DTR low. This only keeps the AVR in reset state if DTR is
wired directly to the reset pin."
Sorry, what I meant was "as if held LOW" - The reason I say so is I can't even
reset it with the reset button at this point. It's literally like someone
tied RESET to ground.
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