核時鐘 的英文怎麼說
中文拼音 [héshízhōng]
核時鐘
英文
nuclear clock-
The analog signals are regulated to satisfy the system and analog - to - digital converter ( adc ) ; dsp is the core part and is connected with adcs, a controller of ethernet, a rs - 485 bus transceiver, a can bus transceiver and a clock. the real - time data is disposed by dsp and is transferred to the upper computer when the alarm is happened
模擬信號調理模塊對輸入的信號進行調理,以達到系統和模數轉換器( adc )采樣的要求; dsp作為系統的核心部件,外擴了adc 、以太網控制器、 rs - 485總線收發器、 can總線收發器和時鐘晶元, dsp對實時數據進行處理,當報警發生時將實時數據通過以太網上傳給上位機。It ' s design and implement are excellent illustration of part i. our design is based on 8051 - like mcu, using veridicom fps110 as fingerprint sensor, adding lcd and keyboard as hmi, and an isa adapter to communicate with host
該系統以8051mcu為控制核心,以fps110為指紋傳感器,配置lcd顯示器、鍵盤、實時時鐘。終端通過isa總線擴展卡與pc機通信,接收pc機的命令。And a kind of 16 - step automatic selective programmable amplifying circuit is designed in volume resistivity measuring circuit, so as to handle sampling little and broad signal. the control and disposal system with the core of microchip at89c55wd is analyzed on chapter 4. main function unit such as the interface circuit of lcd display and keyboard, the interface circuit of micro - printer, real time clock ds12c887, and hardware anti - jamming technique are discussed
本文還設計了以at89c55wd單片機為核心的控制處理系統的外圍介面電路及其軟體,對主要功能部分進行了分析,主要包括:鍵盤液晶顯示介面及界面設計、微型印表機介面、實時日歷時鐘晶元ds12c887 、單片機與單片機及單片機與上位機的通信設計以及控制系統硬體抗干擾措施等。In the designed hardware, at89c51 single chip computer and many kinds of new type circuit chip ( including : special power measuring chip - cs5460a, ds1302 calendar / clock chip, sms0601 lcd, x5045 serial memory ) are used for design. the hardware circuit is simplified, the meter ' s anti - interference ability is enhanced and the precision of measurement is also advanced
設計中以at89c51單片機為核心,採用多種新型集成電路晶元(包括電能計量專用晶元cs5460a 、 ds1302日歷時鐘晶元、 sms0601液晶顯示器、 x5045串列存儲器)進行介面設計,簡化了硬體電路,提高了電能表的抗干擾能力和測量精度。The other belongs in our internal clocks ( the major one of which may be physically located in a part of the brain called the suprachiasmatic nucleus ) which, left alone, would tie the body to a 25 hour ? yes, 25 ? rhythm
另一個定時系統在我們的體內時鐘內(其中一個主要時鐘可能位於我們大腦的稱為超交叉核的那部分中)這些體內時鐘在不受干擾時,會使人體有一個25小時? ?是的, 25小時? ?的生理節奏。If , however , you move the whole body to a time zone which is four hours different , the two clocks will be out of step , like two alarm clocks which are normally set together , but which have been reset a few hours apart. whereas the two clocks would normally sound their alarms together , now they ring at different times. ( 10 ) similarly , the body can be set for evening while the sun is rising
此句意思:另一個定時系統在我們的體內時鐘內(其中一個主要時鐘可能位於我們大腦的稱為超交叉核的那部分中)這些體內時鐘在不受干擾時,會使人體有一個25小時? ?是的, 25小時? ?的生理節奏。A 16 - bit risc microprocessor soft core is designed, and the instruction system, controller, bus and clock are studied
本文設計了一個16位精簡指令集微處理器軟核16rmpu ,主要研究微處理器的指令系統、控制器、總線和時鐘等設計。Linux is originally designed as a time - sharing operating system. due to its non - preemptive kernel, coarse time granularity, frequent disabled interrupt, virtual memory and other buffer mechanism, linux is not so “ real - time ” as rtos
Linux的調度機制決定了它是一個分時系統,其不可搶占的內核、粗糙的時鐘粒度、頻繁的關中斷、虛存和其它緩沖機構的設置,使得linux的實時性不強。The signal collecting system of singlechip collects the signals from generator. the paper introduces the every part of the singlechip. the key component is a 8051cpu, its surrounding circuits include dc power source, simulating signal collecting circuit, digital signal collecting circuit, a / d converting circuit, clock generating circuit, counting frequency circuit, controlling circuit, communicating circuit, and some other circuits
前臺單片機採集系統完成對發電機組多信息量的採集,本文詳細介紹了電路設計,系統的核心器件為8051cpu ,其外圍電路包括電源電路、模擬信號採集電路、 a d轉換電路、數字信號採集電路、時鐘發生電路、測頻電路、控制電路、通訊電路等。This instrument based on lpc932 as the key microprocessor to gather, deal with and store data, to control real - time clock, to complete the liquid crystal display and communication
該儀器基於lpc932單片微機為核心微處理器,來完成數據採集、處理,存儲,實時時鐘控制,液晶顯示,通信等功能。Make clear the procedure of sending and receiving packet of kernel and the implementation of traffic control. the special mechanism in linux such as wait queue, task queue, time interrupt is also explained. after analyzing the file system of linux at large, we bring forward the design of modifying of file system. since many little file is created during the service of email and file service, we introduce the non volatile random access ram, by modifying the arithmetic of file system, changing the data flow of file system
本文詳細介紹了針對網路專用服務器的專用linux系統的設計,對linux文件系統進行了詳盡的解析,包括vfs的實現, buffercache的作用等;並對塊設備驅動程序在內核中各個介面進行了分析;解析了內核接收和發送數據包的全過程以及流量控制在內核中的全過程;並對linux系統的一些特殊的機制如等待隊列,任務隊列,時鐘中斷等進行了詳細的解釋。The real - time microkernel we designed includes the following parts : task management, synchronization and communication, memory management, time management, interrupt handling and system call
設計的實時操作系統內核,包括任務管理、任務間通信、存儲管理、時鐘管理和異常處理系統調用等部分。Rc and other relaxation oscillators just will not do since amplitude noise in whatever circuit functions as a comparator will appear as phase noise on the output signal
Rc諧振器以及其它一些張弛振蕩器不能滿足要求,這是因為它們的核心是電壓比較器,需要利用電壓信號的波動(噪聲)來獲得穩定的輸出,這種波動就構成了時鐘的抖動。The advantage of dual core chips is that they can be used to drive performance and reduce power requirements as well as the heat generated by higher and higher clock speeds of their single core counterparts
雙核心晶元的優點是,它們可用於提高性能,減少電源要求,同時還減少其單核心同類產品由於越來越高的時鐘速度而產生的熱量。The third, according to the aforementioned project, a hardware system is provided which includes the core chip - tms320dsc21 ( ti special dsp ) and its peripheral circuits ( clock and power supply ), video input module, network output module, alarm module, and cradle head control module. the design and debug of hardware system is finished
接著以ti公司的專用dsptms320dsc21為核心,進行了嵌入式網路攝像機的硬體設計,硬體部分包括: dsc21核心及相關電路(時鐘、電源和調試電路) 、視頻輸入模塊、視頻數據網路輸出模塊、報警模塊和雲臺控制模塊。The stage of hardware designing : chose sdram and flash as the physical storage of this system ; designing and realizing sdram circuit, flash circuit, watchdog circuit, rtc circuit, serial communication circuit, networking communication circuit ; the stage of software designing : designing the bootloader program with the function of downloading file with tftp protocol, flash writing and reading, serial communication, booting linux kernel and so on ; transplanting the linux 2. 4 kernel on this hardware system ; designing and realizing linux driver and give a detail of rtc and wdt drivers ’ designing and realization
軟體設計階段:針對本系統應用環境設計了有tftp文件下載、 flash讀寫、串口通信、 linux內核引導等功能的bootloader程序;通過修改linux2 . 4內核源碼中針對硬體平臺部分代碼,完成了內核linux2 . 4到本平臺的移植;驅動設計部分實現了實時時鐘、看門狗、串口、網口等硬體在本系統linux2 . 4平臺下的驅動程序,文中詳細的介紹了實時時鐘和看門狗驅動實現,特別介紹了看門狗模塊中i2c協議的軟體實現。In the scheme, not only the rtlinux ' s double kernel structure and its virtual interrupt are adopted, which make the standard linux process as the lowest priority one in the real - time kernel, but also the 8254 is set to work in the one - shot model by using the kurt ' s utime package, which improves the clock frequency of the os and reduces the cpu ' s extra burden
這種新的實時化方案利用了rtlinux的雙內核體系結構和中斷虛擬機技術,將標準linux進程作為實時內核的一個優先級最低的任務進行調度;同時還利用了kurt中utime軟體包將定時/計數器8254置為one - shot工作模式,從而既提高了操作系統的時鐘頻率,又解決了cpu額外負擔過重的問題。Now, the programmable chip ' s clock becomes faster and faster, the capability of programmable chip is improved very fast also, so more complex function can be implemented in one chip. this design can implement as jpeg coding chip in fpga, it can be used as ip core to other designs
隨著可編程晶元時鐘頻率的不斷提高,晶元容量的不斷增大,可以在晶元上實現更復雜功能,這又使可編程晶元的應用更加廣泛。本設計可以單獨作為編碼器在fpga上實現,也可以作為一個ip核嵌入到其他設計中去。2. the microcomputer - based greenhouse monitoring & controlling system has been developed around an atmel microcontroller which is reinforce by multiplex a / d sampling module ; large volume data on - line storage module ; real - time clock module ; keyboard & display man - machine interaction module ; system monitoring module and communication interface module and so on
溫室微機測控系統的設計以美國atmel公司的微控制器為核心,擴展了多路a d採集子模塊、大容量數據在線存儲子模塊、實時時鐘子模塊、鍵盤顯示人機對話子模塊、系統監視子模塊、現場總線系統和上下位計算機通訊子模塊等等。Scientists can use this tendency to derive a kind of molecular clock from the nucleotide changes in pseudogenes and use it to study the overall dynamics and evolution of the genome
科學家可以利用偽基因核苷酸的變化做為分子時鐘,並藉以研究整個基因組的變遷和演化。分享友人