PC／104总线式多道脉冲幅度分析器的设计

介绍了PC／104嵌入式微机总线的结构和功能，并研制了总线式多道脉冲幅度分析器（MCA）。该MCA以PC／104嵌入式微机为控制核心，采用总线方式实现系统通信和数据传输，由于总线方式速度比较快，因此可实现现场实施采集和显示谱线。在硬件上全部采用高速低功耗CMOS器件，降低了整机功耗，体积小，重量轻，适合于野外现场工作。在软件上采用C语言与汇编语言混合编程，提高了信号处理速度。同时由于采用了单任务DOS操作系统，软件运行更稳定，操作更简单。通过现场测试，该仪器工作正常、可靠，适合野外工作。

Design of the PC/104 Bus Mode Multi-channel Analyzer

This paper expatiates on the bus structure and develop the bus mode Multi-Channel Analyzer (MCA). The nucleus of this MCA is the PC/104 embedded computer, and it introduces the bus communication to realize system and data communication. It may realize data collecting and showing in the field, because the bus mode is rapid. At first, on the hardware we introduce CMOS components, this reduces power, volume and weight. These make it adapts to use in the field; besides, on the software we adopt C and assembly language to program in order to improve conversion speed. At the same time, single-task DOS operating system is infroduced, which makes the software run more steadily, operate more simply. By means of testing on the spot it can normally work, so it suitable to work in the field.