Arduino Mega 256 both 0022 and 1.0 Windows 7
For short update on new board, please go straight to the bottom of the thread.
I have had been having problems getting COM 5 to stay free lately. I normally Disable and then re-Enable it to get it working again. Now I can not finish an Upload. It starts fine but just doesn't finish. I tried to change serial the port, under TOOLS, to 3 but when I go to the Device manager, it always read COM 5 no matter whether I have it set to COM 3 OR 5. Of course I have rebooted a few times but that has not helped either. What can I do? I don't think that I did anything to fry the board but of coarse that is a possibility. I also installed the new version and have been using it successfully for about a week or two before this latest issue. Does anyone have any ideas?
I pressed shift and then upload. This is what I got.
Yes it did. On, Off and On again. Many times. Maybe I'm not doing the jumping right but I have tried it many times. I get me feed back/eco. I have tried two different cables as well.
I tried pulling the cable out and replacing it. The Device Manager gives a tone and re-paints the screen without COM 5. Then, when I plug it back in, it gives a tone and re-paints again with it.
Next, I tried downloading the new version of the Arduino software package onto a different computer and I get the same results. I have tried the two different cables on that computer as well.
Ok. I have tried different versions of the software on one computer along with lots of stone cold rebooting. I have tried a clean new version of the software on the second computer. I have tried two different cables on each computer.
I can't think of anything else. It guess that it must be fried. I will just order a new board.
There is a very slight possibility that the ATmega8U2 has forgotten its purpose. If you have an ISP or a second board you might try re-flashing the firmware. Or, you can try reprogramming the board using ISP.
But, I suspect you are correct; that the board will never again be reprogrammed via bootloader.
As most people feel, the board is relatively cheap but now I have to wait for the replacement to arrive, during Christmas holidays. Is there a place that I should send the old one at the same time, to see if it can be fixed or salvaged? Perhaps it can be donated to have a second life as a brain impaired support board or parted out.
[quote author=Asa Herring link=topic=83851.msg637196#msg637196 date=1325203688]
I just got a replacement board and plugged it in. The power LED is RED and the L LED blinks RED. I tried a second cable with the same results.[/quote]
The color of the LED is irrelevant. Though, it is pretty common for clone-makers to use red LEDs instead of the typical green / orange.
The bottom one is the new one that has the red lights and the error that I posted last. The top one is the first one that I was talking about at the beginning of the thread. It went bad after about one year.
