This is used Proteus and keil completed the two platforms together, to learn from people who are absolutely embedded value provides a compilation and c language code, in the hope that those who do not have a development board and the hope of learning brought about by the Gospel

4-1-2
.....\4-1
.....\4-1.asm
.....\4-1.c
.....\4-1.DSN
.....\4-1.hex
.....\4-1.lnp
.....\4-1.LST
.....\4-1.M51
.....\4-1.OBJ
.....\4-1.Opt
.....\4-1.plg
.....\4-1.PWI
.....\4-1.Uv2
.....\4-1_Opt.Bak
.....\4-1_Uv2.Bak
.....\4-2.ASM
.....\4-2.LST
.....\4-2.OBJ

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