-
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
- 2023-08-04 20:25:03下载
- 积分:1
-
嵌入式TCP/IP协议栈。 C 源码,对于开发TCP/IP协议栈的用户具有非常大的参考价值。...
嵌入式TCP/IP协议栈。 C 源码,对于开发TCP/IP协议栈的用户具有非常大的参考价值。-embedded TCP/IP protocol stack. C source code for the development of the TCP/IP protocol stack users with a great reference value.
- 2022-03-03 18:12:31下载
- 积分:1
-
密码锁调试程序成功,只是不知什么原因,显示不正常
密码锁调试程序成功,只是不知什么原因,显示不正常-Lock
- 2022-09-25 10:45:03下载
- 积分:1
-
这是一个4*4键盘程序,已通过串口检测,效果还不错,给需要的朋友的一个参考。...
这是一个4*4键盘程序,已通过串口检测,效果还不错,给需要的朋友的一个参考。-This is a 4* 4 keyboard procedures have been detected through the serial port, the effect is also true that to a friend in need a reference.
- 2022-01-29 00:07:45下载
- 积分:1
-
a feedback report of the original integrity of procedures for loading change det...
一反馈报警器的完整原程序,用于负载量变化的检测与报警.-a feedback report of the original integrity of procedures for loading change detection and alarm.
- 2022-12-01 06:20:03下载
- 积分:1
-
T6963液晶程序,直接可用51单片机控制
T6963液晶程序,直接可用51单片机控制-T6963 LCD process, directly available to 51 single-chip control
- 2022-01-26 00:20:28下载
- 积分:1
-
想在本站下个资料,上传自己做的一个东西来交换一下:单片机89C51在LCD12864上画曲线,proteus仿真,含源程序。...
想在本站下个资料,上传自己做的一个东西来交换一下:单片机89C51在LCD12864上画曲线,proteus仿真,含源程序。-Would like information on the next site, upload your own things to do in exchange for a look: 89C51 Singlechip LCD12864 on the painting in the curve, proteus simulation, with source code.
- 2023-05-03 16:55:03下载
- 积分:1
-
many microcontroller C code, classic. Hope can help SCM lovers
不少单片机C代码,经典。希望能给单片机爱好者帮助-many microcontroller C code, classic. Hope can help SCM lovers
- 2022-01-22 00:36:40下载
- 积分:1
-
93C46读写程序(EE21学习板演示程序)
93C46读写程序(EE21学习板演示程序)
-93C46 literacy program (EE21 learning demo board)
- 2022-09-09 19:45:03下载
- 积分:1
-
avr super good introductory tutorial, including the primary entry and avr introd...
avr 的入门教程 超好 包括初级入门,及avr各种开发工具的介绍及使用说明 -avr super good introductory tutorial, including the primary entry and avr introduce a variety of development tools and use
- 2023-02-05 08:45:03下载
- 积分:1