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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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FPGA研讨会的一些问题集!
FPGA研讨会的一些问题集!-some of the problems set!
- 2022-03-12 22:09:53下载
- 积分:1
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实现cpld和pc机之间的串口通信,PC机传送到CPLD的信息,CPLD传回到PC机...
实现cpld和pc机之间的串口通信,PC机传送到CPLD的信息,CPLD传回到PC机-Via verilog language ,cpld can communcate with pc.
- 2022-04-10 11:26:08下载
- 积分:1
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一些常用的串行端口的例子,希望对大家有帮助…
一些常用串口的例子,希望对大家有帮助,里面有好几个源代码。-Examples of some commonly used serial port, in the hope that everyone has to help, there are several source code.
- 2022-08-08 09:24:11下载
- 积分:1
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VME总线系统的读写程序。连接到总线调试…
一个VME BUS系统的读写程序。用于调试挂接在总线上各个系统用。-A VME BUS system read and write processes. Attached to the bus for debugging the various systems.
- 2022-12-14 00:00:03下载
- 积分:1
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keil C51学习手册 内涵详细的介绍,使用方法还有源码
keil C51学习手册 内涵详细的介绍,使用方法还有源码-keil C51 connotation of learning manual in detail, the use of methods are source
- 2022-02-05 00:15:49下载
- 积分:1
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RTlinux的AKAE 下来看看吧 里面内容详细
RTlinux的AKAE 下来看看吧 里面内容详细-RTlinux let" s see which of AKAE down and detailed
- 2022-05-28 05:14:28下载
- 积分:1
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protel转pads的工具,原理图和PCB都可以直接进行转换
protel转pads的工具,原理图和PCB都可以直接进行转换-Protel to pads of the tool, schematic diagram and PCB can be directly converted
- 2022-03-23 04:18:05下载
- 积分:1
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实现交通灯的状态机,用Verilog HDL编程,西林…
交通灯状态机的实现,用verilog HDL编程,Xilinx ISE 6仿真,在实际电路中得到验证.-traffic lights to achieve the state machine, with verilog HDL programming, Xilinx ISE 6 simulation, the actual circuit have been tested.
- 2022-01-26 08:12:28下载
- 积分:1
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microchip 得协议栈,学习tcp/ip得仁兄可以参考参考
microchip 得协议栈,学习tcp/ip得仁兄可以参考参考-protocol stack, learning tcp/ip can refer to in reference to my dear friend
- 2022-02-15 11:56:31下载
- 积分:1