| 8位CPU总线采样记录仪的设计 |
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| 引用本文： | 程耀林,魏华兵,伍时促,王锐,陈锟.8位CPU总线采样记录仪的设计[J].测控技术,2012,31(2):42-45. |
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| 作者姓名： | 程耀林 魏华兵 伍时促 王锐 陈锟 |
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| 作者单位： | 中南民族大学电子信息工程学院,湖北武汉,430074 |
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| 摘 要： | 设计了一种8位CPU总线采样记录仪，对51单片机总线进行采样，从中提取如下4种信息并存储：片外程序代码和地址、片外数据存储器的数据和地址。它基于Altera公司提供的DE0开发板，外接AT89S52单片机最小系统，带触摸LCD和SD卡，在FPGA内实现总线采集模块，共同构建了一个SOPC系统，通过在Nios II中运行的软件对数据进行存储、处理。测试结果表明，采集的数据可使用TXT文件的格式存放在SD卡上，同时可在液晶屏上显示和查找。
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| 关 键 词： | SOPC 总线采样记录仪 SD卡 触摸LCD |
The Design of Bus Data Sampling and Storing Instrument for CPU with 8-bit Bus |
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| CHENG Yao-lin
,
WEI Hua-bing
,
WU Shi-cu
,
WANG Rui
,
CHEN Kun.The Design of Bus Data Sampling and Storing Instrument for CPU with 8-bit Bus[J].Measurement & Control Technology,2012,31(2):42-45. |
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| Authors: | CHENG Yao-lin WEI Hua-bing WU Shi-cu WANG Rui CHEN Kun |
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| Affiliation: | (School of Electronic and Information Engineering,South-Central University for Nationalities,Wuhan 430074,China) |
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| Abstract: | The design of a bus data sampling and storing instrument for CPU with 8-bit bus is finished.It can sample from the 51 MCU bus,and draw out four kinds of information as follows:external program codes and code address,data and address of the external data memory,and store it.The SOPC system is constructed based on DE0 board provided by Altera company,it links external AT89S52 based system board,LCD with touch panel,SD card,and the bus sampling module carried out in FPGA.The software running on Nios II can process sampled data and store it.The test result indicates that the sampled data can be stored on SD card with txt file format,and displayed and researched on LCD simultaneity. |
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| Keywords: | SOPC bus data sampling and storing instrument SD card LCD with touch panel |
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