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After first creating my LUFA USB stack for the USB AVRs, I decided as a side project to create a new firmware for the entire USB AVR range, which would emulate an AVRISP-MKII. This project is a clean-room copy of the AVRISP-MKII functionality, supporting the programming of the entire 8-bit AVR range via ISP as well as the PDI (for the newer XMEGA AVRs) and TPI (for the 6-pin TINY AVRs). It is entirely open source and has a wide range of configuration options to adjust the feature set and pin-out.
AVRISP-MKII Connection Diagram
(原文件名:USBTiny_Mkii2.jpg)
One example of a programmer using the clone firmware (Source)
(原文件名:USBTinyMkII_reference_schematic.png)
When compiled for the XPLAIN board target, the code will automatically function as a PDI programmer for the XPLAIN board using the optimal settings. This will allow the XPLAIN board to be programmed from within AVRStudio without additional hardware.
* ISP, PDI and TPI Protocols Supported
* .5MHz ISP Rescue Clock (for mis-set fuses)
* Fast, native USB operation
* Works on any USB AVR model
* Pin-out can be adjusted for speed or compatibility with the official AVRISP-MKII
* Works with anything the official AVRISP-MKII works with (e.g. AVRStudio)
For device pin-out information, build the Doxygen documentation from the source by executing "make doxygen". The resulting documentation will be located in the /Documentation/html/ directory of the source folder.
Downloads
* See Projects/AVRISP-MKII folder of the current LUFA release
网站地址：
http://www.fourwalledcubicle.com/AVRISP.php |
阿莫论坛20周年了！感谢大家的支持与爱护！！
知道什么是神吗？其实神本来也是人，只不过神做了人做不到的事情 所以才成了神。 （头文字D, 杜汶泽）
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发表于 2010-2-27 09:18:11
