avr 单片机usb下载器。速度很快8khex文件编成+校验4秒！（protel dxp）

这是用atmega8制作的usbisp编程器，有一个用protel dxp 画的 PBC图和 原理图，加固件和烧写软件！烧写M8时注意配好熔丝！-This is used atmega8 produced usbisp programmer, there is a schematic diagram and pcb, reinforcement parts and software programmer! With good attention to fuse!

51单片机串口下器制做，手提电脑可用一根ＵＳＢ转串口直接下载. 有原理图（ＤＸＰ） 有Ｃ语言程序和原始资料-51 SCM is produced, under the serial laptop can turn a USB serial directly download. There DXP principle chart (the), C programming language is original material and

USB的autumn protel DXP软件用的PCB封装库-autumn protel DXP