I'm new to the Arduino world, I just got my Uno in the mail earlier today. I managed to get the drivers and software installed without any issues, and I was even able to write up a simple program to blink the LED on pin 13 and upload it without any problems at all. However, when I wrote up a second simple program a while later to control several external LED's on a breadboard, I started running into problems after I tried uploading it. It kept failing with the message 'Programmer not responding." When I looked at the board, the TX LED was on, and refused to turn off, no matter how many times I pressed the reset button or unplugged/plugged in the uno.
In addition, the arduino seemed to be sending constant interrupts to the computer through usb, and the arduino program, as well as my usb mouse and keyboard would stop functioning until I unplugged the uno. I did some research online and saw that others with somewhat similar issues had solved them through updating the firmware. I followed the directions as best I could to update the firmware, but after using dmf-programmer to erase the old firmware, I am unable to reload the updated one. The message I get says "Error parsing the line. Something went wrong with creating the memory image."
I don't know where to go from here.The only instructions I was able to find were for the original Uno, not the Uno R2, but most of it seemed to work fine until the end. Can anybody help me get the firmware back on my arduino? And does anybody know what might have caused the strange behavior that made me try and update the firmware in the first place?
