| 基于MSP430的高速数据采集电路 |
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| 引用本文： | 石向荣,姚旺生,程西军. 基于MSP430的高速数据采集电路[J]. 舰船电子工程, 2005, 25(2): 72-74 |
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| 作者姓名： | 石向荣 姚旺生 程西军 |
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| 作者单位： | 海军工程大学电子工程学院计算机科学系,武汉,430033 |
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| 摘 要： | 采用MSP430F149单片机和高速AD变换器AD7663，设计了一个嵌入式高速高精度16位数据采集电路，采样率超过100Ksps。根据单片机的特点，采用了两个加速方法：(1)AD变换器输出的数据直接送入存储器，节省了数据进出单片机的时间。(2)触发条件出现后，程序工作在查询方式且不允许中断，取得了较快的执行速度。
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| 关 键 词： | 数据采集 MSP430 单片机 AD7663 嵌入式系统 |
| 修稿时间： | 2004-08-09 |
High Speed Data Acquisition Circuit Based on MSP430 |
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| Shi Xiangrong,Yao Wangsheng,Cheng Xijun. High Speed Data Acquisition Circuit Based on MSP430[J]. Ship Electronic Engineering, 2005, 25(2): 72-74 |
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| Authors: | Shi Xiangrong Yao Wangsheng Cheng Xijun |
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| Abstract: | A high-speed, high precise embedded data acquisition circuit with 16 bits resolving capability is designed, MSP430F149 is selected for MCU and AD7663 for analog-to-digital converter, and its data acquisition rate is more than 100Ksps. Two speed up method is used. Firstly, the data read from AD converter send directly to memory,it reduces the time for this data into and out MCU. Secondly, in order to get conversion rate up, the program inquires continually the state of AD converter and the interrupt disabled when triggered. |
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| Keywords: | data acquisition MSP430 MCU AD7663 embedded system |
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