[Solved] Driver issue windows 7

Hello,

I have some issues on my windows 7 64bit machine.

I have a Arduino nano which is working fine on a Windows XP machine. I can upload sketches and the loopback test as described at Loop-Back Test Instructions - IDE 1.x - Arduino Forum is working.

The same nano, the same USB cable, only now on my Windows 7 machine, is failing on me.

  • The loopback test fails; The RX and TX leds are blinking when pressing keys on my keyboard in the terminal application. Only no feedback is displayed in the terminal application.
  • Uploading is failing with the (not so famous): avrdude: stk500_getsync(): not in sync: resp=0x00
    (full output below)

Looks like my windows 7 don't want to receive any data back...

Driver info on the windows7 system (installed from the windows update):
Driver Date: 12-7-2013
Driver Version: 2.8.30.0
Digital Signer: Microsoft Windows Hardware Compatibility Publisher

Where did i go wrong?

Binary sketch size: 2,596 bytes (of a 30,720 byte maximum)
C:\Program Files (x86)\Arduino\hardware/tools/avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware/tools/avr/etc/avrdude.conf -v -v -v -v -patmega328p -carduino -P\\.\COM10 -b57600 -D -Uflash:w:C:\Users\bakkerl\AppData\Local\Temp\build7726205471105300514.tmp\AnalogReadSerial.cpp.hex:i 

avrdude: Version 5.11, compiled on Sep  2 2011 at 19:38:36
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Arduino\hardware/tools/avr/etc/avrdude.conf"

         Using Port                    : \\.\COM10
         Using Programmer              : arduino
         Overriding Baud Rate          : 57600
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Recv: 
avrdude: stk500_getsync(): not in sync: resp=0x00

avrdude done.  Thank you.

A downgrade of the driver solved my issue.

From 2.8.30.0 to 2.8.24.0 ( http://www.ftdichip.com/Drivers/CDM/CDM20824_Setup.exe )

THANKS !!!! :wink:

This worked for me as well on Windows Vista and Windows 8 for the Nano. Make this post sticky!!!