I have an Arduino Mega2560 R3, it was working fine, it was uploading several hours later I went to update the software and it shows the power light and runs the program on there, but it doesnt show up on my computer and therefore wont upload. I even tried to force an install of the driver and it gave me an error code 10 once it was done installing, can anyone shed some light on this?
EDIT: Also, is there a maximum current draw on the 5V supply pin? The 3.3V pin maxes out at 50mA, but there doesn't seam to be anything on the 5V pin...
Also I hadn't connected anything new to my Arduino since I went to update my code. I was going to build a parallel programmer for my board but I would like to at least try and figure out what is wrong with the USB portion.
I tried 3 different cables, all of which I know worked, and also I don't have an UNO.
I saw a post by someone with an UNO or something and it seamed like a similar problem and was talking about putting the chip thats being used as a USB to serial converter into DFU mode and reuploading the firmware to that chip, it seemed to work for him if I remember right, so I was gonna try that. I'll post a link to the post once I find it.
tried using atmels FLIP to reupload the firmware, but it tells me that "address is out of range" when I try to open the HEX file. can I use a parallel programmer and the ISP header to do what I'm trying to do? also how do I know which ISP header pins are which? which pin is pin 1?
I've tried resetting the 16U2 through the ICSP header, and I left it plugged in to USB, no new hardware shows up and every time I choose the USB option for the communication type [in FLIP] it complains that atlibusbdfu.dll isnt found, I know the dll is there cause I checked. Any help?
EDIT: Also whats the difference between the combined and the firmware your talking about?
oh ok, I can't get anything to show up though, nothing shows up when I plug in My mega to be programmed, but the last sketch I uploaded is still on there and I know its still working, so I was gonna try flashing the 16u2 to try and fix the communication problem, but I haven't been able to get anything to show up, and flip is telling me that atlibusbdfu.dll is missing [again, I know its there, but flips being retarded obviously], if I can get flip working that would be great