URL:
<http://savannah.nongnu.org/bugs/?44171>
Summary: Clarify Documentation on signal polarity
Project: AVR Downloader/UploaDEr
Submitted by: funker211
Submitted on: Di 03 Feb 2015 11:33:13 GMT
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: funker211
Originator Email:
Open/Closed: Open
Discussion Lock: Any
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Details:
In the avrdude.conf(.in) file, it says that pin polarity can be inverted with
a preceeding tilde (~) character.
Yet, standard polarity is not defined (or not clearly documented). For
example, an AVR usually requires an active low reset signal. All avrftdi type
programmers simply assign "reset = 3;". Now, is that an active high or active
low signal? Somewhere, it should be stated what signal polarity actually is.
Does "reset = 3;" mean that the reset is high active? Or does it mean it is
(usually) active low and should I need an active high reset, I need to invert
this by writing "reset = ~ 3;"?
Secondly, the file states that a space is required after the tilde. Yet, in
the file and in the documentation, there are examples where this is omitted.
Is a space REQUIRED or not?
I think the documentation really needs an update here, both in the manual AND
in the avrdude.conf.in file.
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