USBasp - AVR programmer

인터넷에 있는 프로그래머

USBasp - AVR programmer

http://www.fischl.de/usbasp/

USBasp - 

USB programmer for Atmel AVR controllers

FeaturesUSBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an ATMega88 or an ATMega8 and a couple of passive components. The programmer uses a firmware-only USB driver, no special USB controller is needed.

• Works under multiple platforms. Linux, Mac OS X and Windows are tested.
• No special controllers or smd components are needed.
• Programming speed is up to 5kBytes/sec.
• SCK option to support targets with low clock speed (< 1,5MHz).
• Planned: serial interface to target (e.g. for debugging).

======================

자작 PCB로 제작

==> 오류 : Unknown USB device !!

==> Atmega8을 사용하라고 되어있는데 ATMEGA8A 사용했더니 오류임

==> 결국 atmega8-16을 사용했더니 인식됨

주의 : 새로산 AVR 인 경우 내부 클럭1MHz 로 설정되어 있으므로

        SLOW SCK 점퍼를 ON 해야 인식된다

===============

http://www.hlektronika.gr/forum/showthread.php?t=70608

ATMEGA8L & ATMEGA8A 둘다 같은 회로및 퓨즈세팅으로 된단다...

usaasp2.zip

=====================

http://dxportal.ru/drugie-novosti-radiolyubitelya/9314-usbasp-programmator-ne-vidit-mk-atmega8a-pu.html