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8253的初始化程序举例:
例1:选择2号计数器,工作在3方式,计数初值为533H(2个字节),采用二进制计数。其初始化程序段为
MOV DX,307...
8253的初始化程序举例:
例1:选择2号计数器,工作在3方式,计数初值为533H(2个字节),采用二进制计数。其初始化程序段为
MOV DX,307H ;命令口
MOV AL,10110110B ;2号计数器的初始化命 令字
OUT DX,AL ;写入命令寄存器
MOV DX,306H ;2号计数器数据口
MOV AX,533H ;计数初值
OUT DX,AL ;选送低字节到2号计数器
MOV AL,AH ;取高字节送AL
OUT DX,AL ;后送高字节到2号计数器
-8253 initialization procedures examples : Example 1 : Select counters on the 2nd, in three ways. Counting for the initial 533H (2 bytes), a binary counting. Initialization of its procedures for MOV DX, 307H; I ordered MOV AL, 10110110B; on the 2nd Counter initialize command word OUT DX, AL; write commands Register MOV DX, 306H; data on the 2nd Counter I MOV AX, 533H; Counting initial OUT DX, AL; low-byte sent to the 2nd Counter MOV AL, AH; With a high-byte send AL OUT DX, AL; evacuations high byte counter to the 2nd
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新型投币机:控制两个按摩椅,具有红外遥控,能够设置最低投币个数及时间,...
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bottom of the mouse Communication Theory and in
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PIC16F639的SPI操作源代码
PIC16F639的SPI操作源代码PI C16F639的SPI操作源代码...
PIC16F639的SPI操作源代码
PIC16F639的SPI操作源代码PI C16F639的SPI操作源代码-PIC16F639 source code of the SPI to operate the SPI operation PIC16F639 source PI C16F639 the SPI to operate the source code
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EZ-USB FX系列单片机USB外围设备设计与应用.PDF
北航出版社
编著:许和
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很好的AT89C2051的中文说明书
费了很大劲才找到的
很好的AT89C2051的中文说明书
费了很大劲才找到的-AT89C2051 good Chinese manual costs a lot劲才found
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公交车IC卡电路图程序
希望能帮助大家
公交车IC卡电路图程序
希望能帮助大家-Bus IC card circuit procedures
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超声波避障小车的设计.声明本文章乃个人觉得有用转载而来
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单片机程序开发软件中文汉化版,支持C语言与汇编语言。
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