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LED 的代码
led.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectName="led"
ProjectDir="D:\ti\boards\tds642evm\examples\bsl\led\"
ProjectType=Executable
C
led.c
/*
* Copyright 2003 by Spectrum Digital Incorporated.
* All rights reserved. Property of Spectrum Digital Incorporated.
*/
/*
* ======== led.c ========
*
* This example blinks LED #
led.txt
试试这个行不行:
KEY bit p3.0
LED equ p1
org 0000h
ajmp 0080h
org 0080h
mov dptr,#0100h
KeyTest:jb Key,KT1 ;判断是否按下按键
jnc KT1 ;判断是否释放后再按
led屏.opt
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
led屏.lst
C51 COMPILER V8.08 LED屏 02/04/2008 21:31:31 PAGE 1
C51 COMPILER V8.08, COMPILATION OF MODULE LED屏
OBJECT MODULE PLACED IN LED
led屏.c
#include
#include
xdata unsigned char DATA1[8] _at_ 0x0100;
xdata unsigned char DATA2[8] _at_ 0x0200;
xdata unsigned char COM0 _at_ 0x0300;
xdata unsigned char COM1 _at
led.c
//串行驱动led显示，
//一个74hc595位移寄存器驱动三极管驱动led位，
//两个74hc595驱动led段，方式位5位x8段x2=10个数码管
//5分频，每次扫描时间位1.25ms
//定义特殊符号
#define nul 0xf
#define qc 0xc
#define qb 0xb
#define q_ 0xa
#define q__ 0xd