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hidkey_gpio [2012/11/30 19:01] steve_m [Software] |
hidkey_gpio [2013/02/27 01:10] (current) steve_m [Results] |
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- | Well, as you can see, programming takes quite a while, mainly because of the slow input speed I mentioned before, but is very reliable. Since I assume that many people have some old USB keyboard laying around collecting dust, it still could be used as a bootstrap flasher for solving the old chicken-and-egg problem when building a faster programmer ([[http://www.fischl.de/usbasp/|USBasp]], [[http://www.ladyada.net/make/usbtinyisp/|USBtinyISP]]) or as low-speed general purpose output for other applications. For example, many outputs could be driven using a simple serial-in, parallel-out shift register. | + | Well, as you can see, programming takes quite a while, mainly because of the slow input speed I mentioned before, but is very reliable. Since I assume that many people have some old USB keyboard lying around collecting dust, it still could be used as a bootstrap flasher for solving the old chicken-and-egg problem when building a faster programmer ([[http://www.fischl.de/usbasp/|USBasp]], [[http://www.ladyada.net/make/usbtinyisp/|USBtinyISP]]) or as low-speed general purpose output for other applications. For example, many outputs could be driven using a simple serial-in, parallel-out shift register. |
===== Update #1 ===== | ===== Update #1 ===== | ||
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I'd say that's quite an improvement, and very well acceptable for a chicken-and-egg bootstrap flasher :-) | I'd say that's quite an improvement, and very well acceptable for a chicken-and-egg bootstrap flasher :-) | ||
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+ | This project was featured on [[http://hackaday.com/2012/11/26/usb-keyboard-becomes-an-avr-programmer/|Hackaday]]. | ||
== Reference Literature == | == Reference Literature == |