Description: 8255A A-port as output, connect 8 LED lights. 8255A, B port as input, connecting eight buttons. When the B port of a button is pressed, the corresponding LED lights will light up simultaneously. Meanwhile, the digital tube display the corresponding key number. If port B button 1 Press, the 1st LED lights will illuminate and an 8-segment LED display.
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20121885杨丹
20121885杨丹.doc
............\Last Loaded test.DBK
............\STARTUP.A51
............\STARTUP.LST
............\STARTUP.OBJ
............\test
............\test.c
............\test.DSN
............\test.hex
............\test.lnp
............\test.LST
............\test.M51
............\test.OBJ
............\test.plg
............\test.PWI
............\test.uvopt
............\test.uvproj
............\test.__i
............\test_uvopt.bak
............\test_uvproj.bak
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