AT89C2051 do with serial downloader avr910 information. Very good. No parallel port of a friend is a big blessing.

2051avr
.......\2051
.......\....\a
.......\....\a.hex
.......\....\a.lnp
.......\....\a.M51
.......\....\a.Opt
.......\....\a.plg
.......\....\a.Uv2
.......\....\a_Opt.Bak
.......\....\a_Uv2.Bak
.......\....\Main.lst
.......\....\Main.obj
.......\avrisp2051
.......\..........\制作资料
.......\..........\........\2051_ISP.Bkp
.......\..........\........\2051_ISP.Ddb
.......\..........\........\AVRISP.hex
.......\..........\........\Main.c
.......\..........\........\Sheet1.Sch
.......\CH341DP.PCB
.......\CH341DP.Sch
.......\CH341DP.xls
.......\History
.......\SPI_ISP.Sch
.......\SPI_ISP.SCHLIB

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