Chapter three takes example for the high speed 16 * 16 fixed - point multiplier used in the circuit to introduce the design of functional circuits , the structure of testable circuits and the method of generating testing codes 第三章以電路中高速的16 * 16定點(diǎn)乘法器為例,介紹了功能電路的設(shè)計(jì)、可測(cè)性電路的結(jié)構(gòu)、測(cè)試碼的生成方法。
Based on the describing of the whole system structure and the basic theory of the 200msa / s signal acquiring and dsp processing module , it is discussed in detail that the realization of the functional circuits in the module 在闡述vxi波形分析儀200msa / s信號(hào)采集與dsp處理模塊的整體結(jié)構(gòu)和基本工作原理的基礎(chǔ)上,對(duì)各功能電路的實(shí)現(xiàn)進(jìn)行了重點(diǎn)論述。
Circuit protection this paper provides a functional circuit protection circuit protection , relay circuits , electric motors , heaters , transformers , semiconductors and other applications occasions electromagnet and its role mentally fuse 電路保護(hù)器提供了電路保護(hù)功能,在繼電器電路電動(dòng)機(jī)加熱器變壓器電磁鐵和半導(dǎo)體等應(yīng)用場(chǎng)合中其作用遠(yuǎn)甚于熔斷器。
This thesis includes the hardware design of messaged _ based interface , the realization of the word serial transfers , the translating of scpi commands , the programme of awg ' s instrument driver , the debugging work associated with functional circuit and soft panel and the testing of module compatibility based vxi bus , edc 本文的主要內(nèi)容包括: vxi總線消息基接口硬件設(shè)計(jì)、字串行通信協(xié)議實(shí)現(xiàn)、 scpi命令翻譯、 vxi任意波形發(fā)生器儀器驅(qū)動(dòng)器設(shè)計(jì)、與功能電路和軟面板的聯(lián)調(diào)和大量的模塊兼容性測(cè)試。
In the third chapter , the realizations of the functional circuits are discussed in details such as the realization of the " 200msa / s sampling by parallel adc " , the " high - speed storage of the converted data with different phases " , the " trigger controlling " , the " high - speed transfer by dma " and so on . additionally , the computer simulation of the " data dividing circuit with four different phases ( 0 , 90 , 180 , 270 ) " is given in this chapter 第三章詳細(xì)論述“雙a / d并行采樣實(shí)現(xiàn)200msa / s采樣” 、 “高速數(shù)據(jù)流分相存儲(chǔ)” 、 “預(yù)觸發(fā)采樣控制” 、 “ vc5409與c196hpi通信” 、 “ dma實(shí)現(xiàn)高速數(shù)據(jù)傳輸”等功能電路的實(shí)現(xiàn),詳細(xì)說(shuō)明其工作流程,并給出了關(guān)鍵電路? ? “數(shù)據(jù)流四相分離”電路的仿真結(jié)果。