| 双口RAM在双CPU交流电量同步采集系统中的应用 |
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| 引用本文： | 王宁,梁志瑞,赵飞.双口RAM在双CPU交流电量同步采集系统中的应用[J].低压电器,2009(15):32-34. |
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| 作者姓名： | 王宁 梁志瑞 赵飞 |
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| 作者单位： | 华北电力大学,河北,保定,071003 |
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| 摘 要： | 在交流电量同步采集系统的设计中,提出了采用双口RAM实现PC104工控机与DSP间高速数据通信的方案。介绍了双口RAM芯片IDT70V28L15PF的功能特点,设计了双CPU硬件接口电路,并给出了3种仲裁方式,有效地解决了两系统间的通信争端。运行结果表明,该设计能保证两CPU间高速、稳定的数据交换。
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| 关 键 词： | 同步采集 双口RAM 双CPU |
Application of Dual-Port RAM in the Synchronous Sampling System of AC Electric Signals Based on Dual-CPU |
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| WANG Ning,LIANG Zhirui,ZHAO Fei.Application of Dual-Port RAM in the Synchronous Sampling System of AC Electric Signals Based on Dual-CPU[J].Low Voltage Apparatus,2009(15):32-34. |
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| Authors: | WANG Ning LIANG Zhirui ZHAO Fei |
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| Affiliation: | WANG Ning,LIANG Zhirui,ZHAO Fei(North China Electric Power University,Baoding 071003,China) |
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| Abstract: | In the design of the synchronous sampling system of AC electric signals,a scheme of adopting dual-port RAM to achieve high-speed data communication between PC104 Industrial control computer and DSP was put forward.The function of the dual-port RAM chip IDT70V28L15PF was described and the hardware interface circuit of dual-CPU was designed.Three arbitration methods which effectively solved the communication dispute between the two systems were presented.The running result shows that the design can guarantee ... |
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| Keywords: | synchronous sampling dual-port RAM dual-CPU |
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