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[avrdude-dev] [bug #28611] -i delay not being applied to all serial port
From: |
anonymous |
Subject: |
[avrdude-dev] [bug #28611] -i delay not being applied to all serial port bit banging state transitions |
Date: |
Fri, 15 Jan 2010 14:37:54 +0000 |
User-agent: |
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_2; en-us) AppleWebKit/531.21.8 (KHTML, like Gecko) Version/4.0.4 Safari/531.21.10 |
URL:
<http://savannah.nongnu.org/bugs/?28611>
Summary: -i delay not being applied to all serial port bit
banging state transitions
Project: AVR Downloader/UploaDEr
Submitted by: None
Submitted on: Fri 15 Jan 2010 02:37:53 PM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: Soren Jorvang
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
Getting started with AVR's, I wanted to bootstrap myself with a simple serial
port bit-banging programmer despite having only USB serial (Prolific 2303)
adapters available.
That didn't work, but only because the -i delay wasn't being applied to all
pin state transitions.
With this patch and the osx-pl2303 driver (the one from prolific.com.tw
doesn't allow bit banging at all), communication starts working at -i 1000 and
is reliable at -i 5000.
This gives a flash write rate of no more than 2 bytes/s, but that's
acceptable for the occasional initialization of a fancier programmer or a boot
loader.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Fri 15 Jan 2010 02:37:53 PM UTC Name: avrdude.diff Size: 1kB By:
None
Patch to apply -i delay to all serbb state transitions
<http://savannah.nongnu.org/bugs/download.php?file_id=19494>
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?28611>
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- [avrdude-dev] [bug #28611] -i delay not being applied to all serial port bit banging state transitions,
anonymous <=