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  • 51串行令牌格式 a51編譯 Read data from serial port and write into buffer DPTR pointed in XRAM if a data

    51串行令牌格式 a51編譯 Read data from serial port and write into buffer DPTR pointed in XRAM if a data frame is received and calculate the check sum if a information frame is received return control byte only

    標簽： data pointed buffer serial

    上傳時間： 2015-06-14

    上傳用戶：極客

  • 基于DSP Builder數(shù)字信號處理器的FPGA設計

    針對使用硬件描述語言進行設計存在的問題，提出一種基于FPGA并采用DSP Builder作為設計工具的數(shù)字信號處理器設計方法。并按照Matlab/Simulink/DSP Builder/QuartusⅡ設計流程，設計了一個12階FIR 低通數(shù)字濾波器，通過Quartus 時序仿真及嵌入式邏輯分析儀SignalTapⅡ硬件測試對設計進行了驗證。結(jié)果表明，所設計的FIR 濾波器功能正確，性能良好。 Abstract:  Aiming at the problems in designing DSP using HDL，a method of designing DSP based on FPGA which using DSP Builder as designed tool is pointed out.A 12-order low-pass FIR digital filter was designed according to the process of Matlab/Simulink/DSP Builder/QuartusⅡ, and the design was verified by the timing simulation based on QuartusⅡand practical test based on SignalTapⅡ. The result shows the designed filter is correct in function and good in performance.

    標簽： Builder FPGA DSP 數(shù)字信號處理器

    上傳時間： 2013-11-17

    上傳用戶：lo25643

  • 基于DSP與FPGA的多視頻通道的切換控制

    為了擴大監(jiān)控范圍，提高資源利用率，降低系統(tǒng)成本，提出了一種多通道視頻切換的解決方案。首先從視頻信號分離出行場信號，然后根據(jù)行場信號由DSP和FPGA產(chǎn)生控制信號，控制多路視頻通道之間的切換，從而實現(xiàn)讓一個視頻處理器同時監(jiān)控不同場景。實驗結(jié)果表明，該方案可以在視頻監(jiān)控告警系統(tǒng)中穩(wěn)定、可靠地實現(xiàn)視頻通道的切換。 Abstract:  To expand the scope of monitoring， improve resource utilization， reduce system cost， a multiple video channels signal switching method is pointed out in this paper. First， horizontal sync signal and field sync signal from the video signal are separated， then control signal according to the sync signal by DSP and FPGA is generated to control the switching between multiple video channels. Thus， it achieves to make a video processor to monitor different place. Experimental results show that the method can realize video channel switching reliably， and is applied in the video monitoring warning system successfully.

    標簽： FPGA DSP 視頻通道 切換控制

    上傳時間： 2013-11-09

    上傳用戶：不懂夜的黑

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