地震学报2009，Vol.31Issue(4)：449-456,8.
EDA技术结合μClinux操作系统在地震前兆仪器中的应用
Application of EDA technology and μClinux operating system in earthquake precursor instruments
摘要
Abstract
Using Altera's Quartus Ⅱ, Nios Ⅱ IDE and SOPC Builder develop-ment tools, the proton precession magnetometer principle host hardware plat-form is designed with a cyclone Ⅱ series FPGA chip (EP2C35). The single-chip system-logic design of the proton precession magnetometer principle host core circuit is achieved by building and configuring the Nios Ⅱ soft-core processor, developing the IO interface and sensor control circuits, and programming somehardware units' VHDL code, for example, the equal precision cymometer and the DPLL. Through researching the embedded operating system configuration technology and building the NIOS Ⅱ soft-core processor's μClinux cross-com-pile environment, the μClinux system is transplanted to the NIOS Ⅱ environ-ment. Another important task of this study is writing the code for device drivers and user programs. Through these works, the design has realized the host func-tion and achieved the expected target.关键词
EDA/μClinux/质子旋进式磁力仪/设备驱动/数字锁相环/等精度频率计Key words
EDA/μClinux/proton precession magnetometer/device driver/DPLL/equal precision cymometer分类
天文与地球科学引用本文复制引用
何案华,赵刚,薛娜,王军,郭藐西,郭柏林,付子忠..EDA技术结合μClinux操作系统在地震前兆仪器中的应用[J].地震学报,2009,31(4):449-456,8.基金项目
中国地震局地震行业专项(200708045)、中国地震局地壳应力研究所中央级公益性科研院所基本科研业务专项基金(J2207824)资助. （200708045）
