AT24C02, the use of timers to generate a change from 0 to 100 seconds stopwatch, and displayed on the LED on, every one second to write this number changes the internal EEPROM. Turn the power off again, single-chip EEPROM of the original l start to write the data read-out, then this number continues to change and display the digital pipe. P1 port access control for the selection of digital, direct from the single-chip I/O port control P0 port 573 connected to control the segment selector.

显示数字
........\STARTUP.A51
........\STARTUP.LST
........\STARTUP.OBJ
........\显示
........\显示.c
........\显示.hex
........\显示.lnp
........\显示.LST
........\显示.M51
........\显示.OBJ
........\显示.plg
........\显示.uvopt
........\显示.uvproj
........\显示_uvopt.bak
........\显示_uvproj.bak

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