Hello to everyone;
I have a little problem with my MEGA2560.
I'm trying to use external IDE's to program the I/O board, rather than Arduino IDE. Currently I'm working with Eclipse,
and I am unavailable to send my program to the board.
This is what I get after trying to program with eclipse and avr plugin.
Launching C:\WinAVR-20100110\bin\avrdude -pm2560 -carduino -PCOM15 -b115200 -Uflash:w:dd.hex:a
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude done. Thank you.
I know that port is OK because MEGA2560 flashes its LEDs a few times.
I also had this issue. I can upload no problem with the Arduino IDE but couldn't with avrdude from eclipse or the command line!
I tried all the reset tricks and that used to work for me but alas no longer.
So I used the sysinternals tool procmon to find the command the IDE was using.
When I found it I tried the exact same command and that also failed
But this was good as then I figured the IDE must be doing some tricks before calling avrdude.
So I downloaded the latest code and found it does in fact do some magic before calling avrdude!
The code is in the IDE's AvrdudeUploader class in the method flushSerialBuffer.
I simply extracted the functionality into a simple command line java app.
However you MUST call the avrdude command immediately after this or it WILL fail...
It works perfectly now
If anyone is interested in help with this please reply to me.
I am probably going to modify avrdude to do this "magic" and contribute it back when I get time.