reverse engineered

USBasp Windows 7 x64

USBasp is an open source USB in-circuit programmer for Atmel AVR microcontrollers. The last time the USBasp website was updated, no support was available in Windows 7 x64. This was due to Windows 7 x64 requiring a digital signature for all drivers.

Things have since changed, and the most recent build of libusb-win32 runs flawlessly on Windows 7 x64. This enables the USBasp to communicate with the computer.

avrdude is the software used to communicate with the AVR microcontroller. To obtain the latest version of avrdude for Windows, download winAVR, or alternatively, grab the binary from here.

You can then program your microcontroller from the commandline, or alternatively use avrdude-GUI as an interface.

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