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摘要 本文詳細介紹了雙CPU實現(xiàn)數(shù)據(jù)處理及信號控制的設(shè)計及應(yīng)用。由于單處理器在處理具有大量數(shù)據(jù)處理和信號控制的系統(tǒng)時會出現(xiàn)較大的處理時間滯后,而且無法滿足系統(tǒng)實時性和擴展性要求,用常規(guī)的單片機去處理和控制不能取得滿意的效果。針對這種復(fù)雜需要大量數(shù)據(jù)處理和信號控制的系統(tǒng),本文采用了基于雙單片機的信號處理系統(tǒng)設(shè)計方案。 雙單片機的信號處理系統(tǒng)設(shè)計方案是一種基于2片AVR單片機作為雙CPU分擔(dān)不同單元的任務(wù),各功能相互獨立。本文先對雙單片機的信號處理系統(tǒng)設(shè)計方案作了簡介,對本方案設(shè)計作出具體的說明;而后應(yīng)用雙單片機的方案在數(shù)字示波器設(shè)計下的應(yīng)用進行了詳細的設(shè)計過程,包括采集數(shù)據(jù)的處理和控制信號的處理;然后給出了系統(tǒng)的設(shè)計過程及數(shù)字示波器相應(yīng)的應(yīng)用,在此基礎(chǔ)上設(shè)計一個采用雙單片機設(shè)計的數(shù)字示波器,并對數(shù)字示波器的性能進行檢驗。 檢驗結(jié)果表明,對于需要大量數(shù)據(jù)處理和多控制信息的多變量系統(tǒng)時,應(yīng)用雙單片機的信號處理系統(tǒng)設(shè)計方案能夠獲得比單處理控制器更加令人滿意的效果。 關(guān)鍵詞:雙處理器;數(shù)據(jù)處理;信號控制
Abstract This paper introduces the realization of data processing and twin CPU design and application of signal control. Because single processor in dealing with a large number of data processing and signal control system will appear larger processing time lag, and unable to meet demand, real-time and expansibility system with conventional microcontroller to process and control can't obtain satisfactory effect. Aiming at the complex needs a large number of data processing and signal control system, this paper adopted based on double MCU signal processing system design scheme. Double MCU signal processing system design scheme is a kind of based on 2 slices of AVR single chip microcomputer as double CPU share different units task, each function independent. This paper first on the double MCU signal processing system design scheme introduced this scheme design, make specific instructions; And then using a single chip solutions in the application of digital oscilloscopes under the design of detailed design process, including collecting data processing and control signal processing; Then presented system design process and digital oscilloscopes corresponding application, based on this design a double microcontroller, and the digital oscilloscopes digital oscilloscopes performance inspection. Test results show that large amounts of data need to control information processing and multi-multi-variable systems, signal processing using dual microcontroller system design can achieve more satisfactory than the effect of a single control. Keyword:Dual-processor;data processing;signal control
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