I bought a Printrboard Rev D from E-bay, don’t know what boot loader version and I’m sure it has a Firmware loaded. I can connect as a printer from Repetier-Host. Com port driver loaded and believe working correctly.
I want to load Marlin Firmware, have followed instructions using Arduino-0022, it compiles correctly, tried on Windows 7 and XP. Board has a boot jumper, have tried any combination with reset button, no success.
This is the message I get:
Binary sketch size: 49224 bytes (of 63488 byte maximum)
avrdude: ser_open(): can’t set dtr for “\\.\COM5”
I would appreciate any help.
