P1 port input and output test experiment was 1. Learning to use the P1 population. 2. Learning delay the preparation and use of subroutines. Experimental request output 1.P1 I do, and then light-emitting diodes 8, the preparation procedure, so that light-emitting diode light cycle. I do 2.P1 input, and then switch the eight sub-twisting to do experiments on board 74LS273 output read switch programming, and this state, in the light-emitting diode display.

EXP_NO1
.......\EXP.ASM
.......\EXP.BAK
.......\EXP.BIN
.......\EXP.HEX
.......\EXP.LST
.......\EXP1.ASM
.......\EXP1.BAK
.......\EXP1.BIN
.......\EXP1.HEX
.......\EXP1.LST
.......\EXP1_0.ASM
.......\EXP1_0.BAK
.......\EXP1_0.BIN
.......\EXP1_0.HEX
.......\EXP1_0.LST

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