各種單片機用到的或集成芯片的中文資料庫,各種芯片中文資料一應俱全。
上傳時間: 2013-10-08
上傳用戶:731140412
基于AT89S51單片機的頻率可調的方波信號發生器
上傳時間: 2014-12-26
上傳用戶:jkhjkh1982
基于FPGA的任意波形發生器的研究與設計
上傳時間: 2014-01-25
上傳用戶:dudu1210004
提出一種基于單片機AT89S52控制的數字頻率計的設計新方法。該方法將待測頻率信號經過整形放大后輸入單片機,然后由單片機控制內部計數器分別對待測信號和標準信號同時計數,再經運算處理得到測量結果,可自動量程轉換,并由1602ALED顯示器實時顯示。該設計與傳統測頻系統相比,具有體積小、成本低、低功耗、精度高等優點,適用于各種測量電路。
上傳時間: 2013-10-22
上傳用戶:erkuizhang
提出了一種以S3C2440A為核心處理器的銀行評價器的設計方案,并結合XILINX公司的XL95144XL型CPLD,輔助S3C2440A,實現該銀行評價器的各部分功能以及系統信號之間的相互協調。該評價器在系統設計上采用液晶屏顯示,代替了以往簡單的數碼管電路的顯示模式,在視覺上給人以全新的享受。同時,評價器增加了新的網絡供電方式,只要將評價器連接上網絡就可以正常工作,方便了客戶的使用。總之,此款銀行評價器采用了嵌入式系統的設計方案,大大豐富了系統功能,實現一個銀行評價器設計的新突破。 Abstract: S3C2440A of SamSung company is the core component of the embedded system. A design of bank assessor based on S3C2440A was provided in this paper. It used XL95144XL combined with S3C2440A to realize all the functions and coordination with system signals. This bank assessor used LCD to display instead of the former simple digital display and provided a new seusuous enjoment. Meanwhile,it provided a new method of network power supply,that the bank assessor could regularly work once it connected to the network,which is convenient for customers to use. In a word,this assessor takes embedded system,enriches the system’s functions and reclizes a new breakout.
標簽: S3C2440A
上傳時間: 2013-11-03
上傳用戶:taa123456
MMC/SD卡以其優越的性能,在單片機嵌入式設備中得到廣泛應用。將MMC/SD卡作為外部掉電存儲介質應用于音頻信號發生器中,通過8051F330單片機上的SPI接口,實現單片機—MMC/SD卡的存儲擴展,設計了此硬件平臺上的MMC/SD卡的單片機驅動程序,并給出了相應的程序代碼,滿足音頻信號發生器的大容量存儲要求。 Abstract: MMC/SD card is more and more widely used in the single chip embedded devices for their excellent performances.This article introduces the application of MMC/SD card as the external power down storage medium in audio signal generator. The extension technology especially for storage of single chip-MMC/SD card via SPI interfaces in 8051F330 single chip, including designs single chip drive program of MMC/SD card based on hardware platform,and also gives the key coding of the program. The implementation of big capacity storage is meaningful in audio signal generator.
上傳時間: 2014-12-27
上傳用戶:黃華強
介紹了CAN總線和P87C591單片機的特點,給出了基于P87C591單片機的信號采集節點的軟、硬件設計,指出了硬件電路設計中應注意的問題,在軟件設計中重點介紹了節點初始化、報文發送和報文接收等子程序。 Abstract: The features of CAN Bus and the microcontroller P87C591 are introduced, and the design of hardware circuit and soft configuration of the signals collection node based on P87C591 are presented. The problems in designing hardware circuit are discussed.Initialization subprogram, transmiting subprogram and receiving subprogram are emphasized in soft configuration.
上傳時間: 2013-11-03
上傳用戶:BIBI
提出一種基于單片機AT89C51SND1C的MP3播放系統的設計方案。單片機集成了專用的解碼器,使用K9F1208閃存作為外存儲器,放音電路采用CS4330,存儲文件通過播放器上的USB接口設備從PC機上直接下載,液晶顯示采用LCD1602。方案設計簡單,性價比高,低功耗,易擴展。由于采用的是通用單片機實現的,可以很容易地移植到其他微控制器系統中,有很強的市場競爭能力和實用價值。 Abstract: A MP3 player design based on microchip AT89C51SND1C was presented, which used K9F1208 Flash chip as the memory circuit and used CS4330 as play chip. Storage files were download from PC through USB interfaces player on the device,and the LCD/602 was used as display screen. This system had characteristics of simple design,low power,easy expand,low cost and high recognition. Using of universual microchip make it easy to transplant to other microcontrol system,and have strong market competitiom and practical value.
上傳時間: 2014-12-27
上傳用戶:佳期如夢
介電體超晶格是一種新型的有序微結構材料。它具有通常均質材料所不具有的獨特的優異性能,展現出重要的應用前景。本文介紹南京大學研究組關于介電體超晶格研究所取得的進展,如將多個獨立的光參量過程集成于一塊介電體超晶格之中獲得了多波長激光的同時輸出,研制成超晶格全固態三基色原型激光器,在介電體超晶格中將拉曼散射強度增強到10的4次方-10的5次方倍,用超晶格研制的器件填補了體波超聲器件從幾百MHz到幾千MHz的空白頻段,發現了微波與超晶格振動的強烈耦合以及研究了由此而產生的極化激元(polariton)的激發與傳播等。
上傳時間: 2013-11-01
上傳用戶:清山綠水
單片機原理及應用實訓指導書--Atmega16的C語言開發的應用
上傳時間: 2013-10-14
上傳用戶:wendy15