Can't upload sketch. Tried everything.

Using Arduino Installation & Troubleshooting
#1

Hi.

When I go to upload a sketch to my Arduino Duemilanova ATMEGA328 I get the following error:

503×603 34.5 KB

avrdude: stk500_getsync(): not in sync: resp=0x00

I performed the "Loop Back Test" and all seems fine. Anything I type in the serial monitor is echo'd back to me.

One strange thing, under normal use the Serial Monitor is filling up with random data. I assume this is causing my problem:

It churns out this data at a rapid rate. If I leave the serial monitor open, it will eventually crash my machine.

Hope someone can help, looking forward to getting some real work done.

Thanks.

#2

I've also tried two different usb cables and two different machines. :roll_eyes:

#3

Check for "chip creep" on the ATmega. Firm squeeze (but not gorilla) on both ends of the uC and check.

#4

Check with other bauds speeds, maybe the data have some sense

#5