Arduino Mega2560R3 and WinXp
There is no Rx/Tx activity. Never.
Start Upload — timeout
Start Bootloader load — avrdude: usbdev_open(): did not find any USB device “usb”
Hardwer/devices/Ports/Arduino Mega 2560 (COM8) I can see, if board is conect
I can program the board via ICSP under arduino softwer by AVRISP_MKII
Usb port looks like OK. More other hardwer works - pendrive, camera, printer, scanner…
This arduinoboard with other computer with WinXp — works well.
Can You Help?