i want to make an usbtiny v1.0, but how to program the firmware ?
Aside from the obvious answer about going to AVR's website to learn, you can purchase a module that will assist on the hardware site at www.ladyada.net/make/usbtinyisp/
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i have visited it, but how can i program the firmware into my attiny2313 ? I've made usbtinyisp v1.0 and I also have firmware that is included in the folder "spi" (main.hex). when installed on the PC appears "unknown device"
I'm sorry. As I noted above, I would suggest that you contact the mfg for assistance. Both of the answers I gave above should be enough to solve the issue. The link shows it quite clearly in fact. I can't give you a step-by step answer, since I don't have time to do the very same reading that it would require you to do at the link I gave you and at the mfg site, as I suggested. good luck