bugAVR Downloader/UploaDEr - Bugs: bug #48457, avrdude problem with chip CH340G

 
 

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bug #48457: avrdude problem with chip CH340G

Submitted by:  None
Submitted on:  Sun 10 Jul 2016 01:48:11 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalItem Group: None
Status: NonePrivacy: Public
Assigned to: NoneOriginator Name: PSL
Originator Email: -unavailable-Open/Closed: Open
Release: NoneProgrammer hardware: 
Device type: 

Sun 10 Jul 2016 01:48:11 PM UTC, original submission:

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.

Anonymous

 

Attached Files
file #37792:  stk500_drain.diff added by None (538B - text/x-patch - patch stk500_drain)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by None (Submitted the item)
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    Follows 1 latest change.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 10 Jul 2016 01:48:11 PM UTCNoneAttached File-=>Added stk500_drain.diff, #37792

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