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本实验利用8253做定时器,用定时器输出的脉冲控制8259产生中断
在8259中断处理程序中,对时、分、秒进行计数,在等待中断的循
环中用LED显示...
本实验利用8253做定时器,用定时器输出的脉冲控制8259产生中断
在8259中断处理程序中,对时、分、秒进行计数,在等待中断的循
环中用LED显示时间。
8253用定时器/计数器1,8253片选接CS4,地址为0C000H。8253时钟
源CLK1接分频电路的F/64输出。分频器的Fin接4MHz时钟。8253的
GATE1接VCC。
8259中断INT0接8253的OUT1,片选接CS5,地址为0D000H。
显示电路的KEY/LED CS 接CS0,地址为08000H。-In this study, the use of 8253 to do the timer, using timer pulse output control 8259 generates an interrupt in 8259 interrupt handler, for hours, minutes and seconds count, waiting for interruption through ring using LED display time. 8253 with the timer/counter 1,8253 chip select access CS4, address 0C000H. 8253 clock source CLK1 of the F/64 then divider circuit output. Fin then 4MHz clock divider. 8253" s GATE1 then VCC. 8259 interrupt INT0 then 8253" s OUT1, chip select access CS5, address 0D000H. Display circuit of the KEY/LED CS access CS0, address 08000H.
- 2023-08-26 17:40:04下载
- 积分:1
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source code of C8051F040 UART0 mode1 slave computer
C8051F040 UART0模式1从机程序-source code of C8051F040 UART0 mode1 slave computer
- 2022-03-31 07:39:36下载
- 积分:1
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使用互斥信号量解决ucosii中的优先级反转
使用互斥信号量解决ucosii中的优先级反转-The use of mutex semaphores to solve the ucosii Priority Inversion
- 2022-01-25 19:35:08下载
- 积分:1
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CM240128程序,可用keil编译,用51单片机可运行此程序
CM240128程序,可用keil编译,用51单片机可运行此程序-CM240128 procedures available keil compiler, using 51 single-chip can run this program
- 2023-07-09 03:15:03下载
- 积分:1
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ds1302温度测试,C语言源程序,经过测试使用
ds1302温度测试,C语言源程序,经过测试使用-ds302
- 2023-02-18 07:05:03下载
- 积分:1
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灯带控制源码
程序主要实现了红外和上位机来控制LED灯带,上位机需要电脑控制,红外是视距传输,遥控距离有一定限制,对于大型的娱乐和展示场所可以使用电脑控制,通过这个实例学习可以初步掌握STM32的基本IO口、串口、外部中断、PWM输出、红外遥控和上位机的使用,为更深入的学习STM32打下良好基础。
- 2022-01-25 19:29:20下载
- 积分:1
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VGA显示贪吃蛇
资源描述微机原理综合实验,VGA显示贪吃蛇游戏,基于NEXYS4的开发。
- 2022-05-27 08:41:29下载
- 积分:1
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Perfect Example for Embedded
Perfect Example for Embedded-C begineers
Explaining use of Data types, Storage class specifiers.
The following code will not immediately run. After being debugged, you are to run this code in the MPLAB environment as outlined in the procedure.
This code, when working, will be a very simple program that initializes two variables, runs a loop, and stops. The variables are Fahrenheit and Celsius representing the two common units of Temperature. The loop walks Fahrenheit through all integers between -212.0 and +212.0 while setting the respective Celsius value each step of the way.-Perfect Example for Embedded-C begineers
Explaining use of Data types, Storage class specifiers.
The following code will not immediately run. After being debugged, you are to run this code in the MPLAB environment as outlined in the procedure.
This code, when working, will be a very simple program that initializes two variables, runs a loop, and stops. The variables are Fahrenheit and Celsius repr
- 2022-03-02 19:58:08下载
- 积分:1
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a small embedded operating system kernel can be used for a variety of hardware p...
一个小型的嵌入式操作系统内核,可用于多种硬件平台,体积小,移植方便。-a small embedded operating system kernel can be used for a variety of hardware platforms, small size, facilitate transplantation.
- 2022-02-06 19:54:00下载
- 积分:1
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C语言学习300例 ,详细的代码和解说,是学习C语言的非常好的资料!...
C语言学习300例 ,详细的代码和解说,是学习C语言的非常好的资料!-C language learning 300 cases, the code and detailed captions, C language learning is very good information!
- 2022-11-17 07:50:04下载
- 积分:1