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[avrdude-dev] [bug #48457] avrdude problem with chip CH340G
From: |
anonymous |
Subject: |
[avrdude-dev] [bug #48457] avrdude problem with chip CH340G |
Date: |
Sun, 10 Jul 2016 13:48:13 +0000 (UTC) |
User-agent: |
Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/51.0.2704.79 Chrome/51.0.2704.79 Safari/537.36 |
URL:
<http://savannah.nongnu.org/bugs/?48457>
Summary: avrdude problem with chip CH340G
Project: AVR Downloader/UploaDEr
Submitted by: None
Submitted on: Sun 10 Jul 2016 01:48:11 PM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: PSL
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
I have a clone of Arduino Nano V3 with chip CH340G and I see a protocol
problem. I use my Arduino clone as ISP STK500v1, it is loaded with example
ArduinoISP that is distributed with Arduino IDE.
https://www.arduino.cc/en/Tutorial/ArduinoISP
Avrdude works fine with ArduinoISP when it runs at Arduino with FTDI chip but
fails with protocol error at Arduino with CH340G chip. I run it at Ubuntu
Linux. Command to test:
# avrdude -c stk500v1 -P /dev/ttyUSB0 -b 19200 -p m328p -vvvv
I have found that when I add more calls "stk500_drain" to stk500.c, I remove
this problem. I attach a simple patch.
BTW, man can find more reports on this problem with Google.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Sun 10 Jul 2016 01:48:11 PM UTC Name: stk500_drain.diff Size: 538B
By: None
patch stk500_drain
<http://savannah.nongnu.org/bugs/download.php?file_id=37792>
_______________________________________________________
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