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自己动手制造at89c2051编程器（英文）
自己动手制造at89c2051编程器（英文）
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自己动手制造at89c2051编程器（英文）
Build your own a personal writer for programming HEX code into Flash based microcontroller AT89C2051(2k) and AT89C4051(4k). Simple hardware and Easy use software in DOS and Window version. Single-side
