Plug in your USBasp device (I’m sure you’ve already done this if you’ve googled this page!).You can download the package from my downloads page. This worked and so I’ve packaged up everything you need to get going with the USBasp on Windows 7 圆4. INF file required by the Windows device manager. The package came with instructions on how to create the. No go.įinally I stumbled across a Windows port of the libusb driver used by avrdude to communicate with USB programmers. I even resorted to compiling an 圆4 version of avrdude to see if that would help. Unfortunately when it arrived I discovered that there were no ‘official’ drivers for 64-bit editions of Windows such as Windows 7 圆4 which I use.Ī quick look around the net yielded some hope with blogs and forum posts all offering up possible fixes ranging from unofficial drivers to hacks that disabled checking the digital signature on the USB driver – signed drivers are now a mandatory requirement for the 64 bit editions of Windows. There are dozens available on ebay for just a few pounds, and that’s where I got mine. The most cost-effective way to program an ATmega/ATtiny MCU that’s not embedded in a development board such as the Arduino is to buy yourself a USB in-system programmer (ISP).
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June 2023
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