摘要
采用MSP4 30F14 9单片机和高速AD变换器AD76 6 3,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10 0Ksps。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。
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.
出处
《舰船电子工程》
2005年第2期72-74,共3页
Ship Electronic Engineering
