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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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讲解嵌入式设备上的Linux系统开发,具有一定的参考价值.
讲解嵌入式设备上的Linux系统开发,具有一定的参考价值.-on embedded devices on the Linux system development, with some reference value.
- 2022-06-18 11:54:20下载
- 积分:1
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单片机C语言的轻松入门,讲解的很生动,是学习的好资料
单片机C语言的轻松入门,讲解的很生动,是学习的好资料-SCM C-ease of entry to explain very lively and good information to learn
- 2022-02-06 05:51:11下载
- 积分:1
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c8051f开发板标准例程
c8051f310开发板例程,非常详细,可直接运行
- 2023-07-20 16:05:03下载
- 积分:1
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S3C2410 embedded LINUX in under an MMC drive module, which has notes. Can be und...
在S3C2410的嵌入式LINUX下的一个MMC驱动模块,里面有说明。通过该实例可以理解MMC块设备驱动程序是怎样一回事-S3C2410 embedded LINUX in under an MMC drive module, which has notes. Can be understood through the examples of MMC block device driver is how one thing
- 2022-02-03 20:31:08下载
- 积分:1
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uclinux在ARMSYS上的使用说明书,基于44box系统
uclinux在ARMSYS上的使用说明书,基于44box系统-ARMSYS Basis in the use of brochures, based on the system 44box
- 2022-05-05 06:47:12下载
- 积分:1
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I am done with STC12LE5202AD solar lawn lamp LED charge and discharge controller...
本人用STC12LE5202AD做过的太阳能草坪灯LED充放电控制器,具有浮充,过充,过放,光控+时控等功能,
实际应用良好,希望大家多多指导。-I am done with STC12LE5202AD solar lawn lamp LED charge and discharge controller, with a float, over charge, over discharge, light control+ time control and other functions, the practical application of good, I hope you lot of guidance.
- 2023-08-09 13:05:03下载
- 积分:1
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微机连接枪应答课程设计
微型计算机接口枪答器课程设计- The microcomputer connection gun answering curriculum designs
- 2022-04-29 19:48:35下载
- 积分:1
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148个verilog hdl小程序(有很多testbench)――.
148个verilog hdl小程序(有很多testbench)――.-148 Verilog HDL small programs (many testbench) from Part
- 2022-07-15 11:59:58下载
- 积分:1
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S3C4510B的一些开发例程,对入门ARM处理器有绝对的帮助
S3C4510B的一些开发例程,对入门ARM处理器有绝对的帮助-development example of S3C4510B,help to learning ARM processor programmer.
- 2022-04-13 17:20:22下载
- 积分:1