電子書-RTL Design Style Guide for Verilog HDL540頁A FF having a fixed input value is generated from the description in the upper portion of Example 2-21. In this case, ’0’ is output When the reset signal is asynchronously input, and ’1’ is output When the START signal rises. Therefore, the FF data input is fixed at the power supply, since the typical value ’1’ is output following the rise of the START signal. When FF input values are fixed, the fixed inputs become untestable and the fault detection rate drops. When implementing a scan design and converting to a scan FF, the scan may not be executed properl not be executed properly, so such descriptions , so such descriptions are not are not recommended. recommended.[1] As in the lower part of Example 2-21, be sure to construct a synchronous type of circuit and ensure that the clock signal is input to the clock pin of the FF. Other than the sample shown in Example 2-21, there are situations where for certain control signals, those that had been switched due to the conditions of an external input will no longer need to be switched, leaving only a FF. If logic exists in a lower level and a fixed value is input from an upper level, the input value of the FF may also end up being fixed as the result of optimization with logic synthesis tools. In a situation like this, while perhaps difficult to completely eliminate, the problem should be avoided as much as possible.
標簽： RTL verilog hdl
上傳時間： 2022-03-21
上傳用戶：canderile
基于藥物治療在臨床治療中的重要性,分析目前服藥提醒裝置存在的不足,以STM32F103VET6單片機為控制核心,設計了一種多功能電子藥箱。該系統包括顯示模塊、語音模塊和數據存儲模塊。顯示模塊通過觸摸屏電路和LED指示燈電路,與語音模塊相配合,實現了服藥提醒及指導的功能;數據存儲模塊通過EEPROM存儲電路,能夠實現掉電時服藥信息不丟失的功能。并且為了實現電子藥箱的智能化控制,開發了手機APP,兩者之間可通過WIFI進行數據通信。經測試,該藥箱能夠有效地幫助慢性病患者按時、定量、正確服用藥物,適合在家庭中推廣使用,具有較高的應用價值和實踐意義。Based on the importance of drug therapy in clinical treatment, this paper analyzes the shortcomings of current drug reminder devices, and designs a multi-function electronic medicine box with STM32 F103 VET6 microcontroller as the control core. The system includes a display module, a voice module, and a data storage module. The display module cooperates with the voice module through the touch screen circuit and the LED indicator circuit to realize the function of reminding and guiding the medicine;the data storage module can realize the function of not losing the medication information When the power is off through the EEPROM storage circuit.After testing, the medicine box can effectively help chronic diseases patients to take drugs on time, in a quantitative and correct manner,and is suitable for popularization in the family, and has high application value and practical significance.
標簽： 電子藥箱
上傳時間： 2022-03-27
上傳用戶：
設計功率MOSFET驅動電路時需重點考慮寄生參數對電路的影響。米勒電容作為MOSFET器件的一項重要參數,在驅動電路的設計時需要重點關注。重點觀察了MOSFET的開通和關斷過程中柵極電壓、漏源極電壓和漏源極電流的變化過程,并分析了米勒電容、寄生電感等寄生參數對漏源極電壓和漏源極電流的影響。分析了柵極電壓在米勒平臺附近產生振蕩的原因,并提出了抑制措施,對功率MOSFET的驅動設計具有一定的指導意義。When designing the drive circuit of power MOSFET,the influence of parasitic parameters on the circuit should be concerned.As an important parameter of MOSFET device,Miller capacitance should be considered in the design of drive circuit.The variation of gate voltage,drain source voltage and drain source current during the turn-on and turn-off of MOSFET were observed.The influences of parasitic parameters such as Miller capacitance and parasitic inductance on drain source voltage and drain source current were analyzed.The reasons of gate voltage oscillation nearby Miller plateau were analyzed,and the restraining measures were put forward.This research was instructive for the drive design of power MOSFET.
標簽： mosfet
上傳時間： 2022-04-02
上傳用戶：默默
鋰電池BMS管理技術是移動機器人的關鍵技術,本文設計了基于bq76PL455、STM32F103的鋰電池管理系統,實現了電池組電壓、電流、過壓、過流等狀態監測;系統配置均衡電路,電池充電過程中若出現電池單體電壓不平衡現象,會觸發均衡電路,進而提高電池的安全性,延長使用壽命。Lithium battery BMS management technology is the key technology of mobile robot.The lithium battery management system based on bq76PL455 and STM32F103 is proposed to realize the monitoring of battery pack voltage,current,overvoltage and overcurrent.The system is equipped with equalization circuit.When the battery cell voltage imbalance occurs,the equalization circuit is triggered to improve the safety and service life of the battery.
上傳時間： 2022-04-02
上傳用戶：
如果在調諧器或電視機附近使用本機或任何其他使用微處理器的電子設備，則可能會產生圖像的噪聲或干擾。如果發生這種情況，請采取以下步驟將本機安裝在盡可能遠離調諧器或T的地方。遠離調諧器或T，遠離本機的電源線和輸入/輸出連接電纜。尤其在使用室內天線或300歐姆饋線。我們建議使用室外天線和75 Q / ohm同軸電纜Noise or disturbance of the picture may be generated if this unit or any other electronic equipment using microprocessors is used near a tuner or TV If this happens, take the following stepsInstall this unit as far away as possible from the tuner or T Run the antenna wires from the tuner or T away from this unit ' s power supply cord and input/output connection cables. Noise or disturbance tends to occur particularly When using indoor antennas or300 ohm feeder wires. We recommend using outdoor antennas and 75 Q/ohm coaxial cables
標簽： 功放
上傳時間： 2022-04-22
上傳用戶：
以STM32F103C8T6為核心,設計了無刷直流電機控制器硬件電路。電路主要包括IR2310構成的PWM驅動電路、IRF3808構成的逆變電路、增量式旋轉編碼構成的速度反饋電路。控制器具有CAN和RS232通信接口,可與計算機或PLC構成速度或位置伺服系統。利用由xPC目標搭建的半實物仿真平臺對PI參數進行整定。測試了控制器的速度伺服響應性能,給定速度為2400rpm時,控制器響應時間為0.32s。實驗結果表明,系統工作可靠,穩定性好,響應速度快,可以滿足上肢康復機器人的機械臂速度控制性能要求。The hardware circuit of Brushless DC motor controller is designed by taking STM32F103C8T6 as the core,which mainly includes PWM driving circuits made up of IR2310,inverter circuit formed by IRF3808,speed feedback circuit composed of incremental rotary encoder and so on.Speed servo control system or position servo control system can be composed of BLDM controller with computer or PLC through CAN communication interface or RS232 serial communication interface.By using the hardware in the loop simulation platform built by xPC target,the PI parameters are set up.The Speed servo response performance of the controller is tested.When the speed is 2 400 rpm,the response time of the controller is 0...
上傳時間： 2022-05-07
上傳用戶：
le flows through MOS channel while Ih flows across PNP transistor Ih= a/(1-a) le, IE-le+lh=1/(1-a)' le Since IGBT has a long base PNP, a is mainly determined by ar si0 2ar= 1/cosh(1/La), La: ambipolar diff length a-0.5 (typical value)p MOSFET channel current (saturation), le=U"Cox"W(2"Lch)"(Vc-Vth)le Thus, saturated collector current Ic, sat=1/(1-a)"le=-1/(1-a)"UCox"W/(2Lch)"(Vo-Vth)2Also, transconductance gm, gm= 1/(1-a)"u' Cox W/Lch*(Vo-Vth)Turn-On1. Inversion layer is formed When Vge>Vth2. Apply positive collector bias, +Vce3. Electrons flow from N+ emitter to N-drift layer providing the base current for the PNP transistor4. Since J1 is forward blased, hole carriers are injected from the collector (acts as an emitter).5. Injected hole carriers exceed the doping level of N-drift region (conductivity modulation). Turn-Off1. Remove gate bias (discharge gate)2. Cut off electron current (base current, le, of pnp transistor)
標簽： igbt
上傳時間： 2022-06-20
上傳用戶：wangshoupeng199
In this presentation, we will look at what the Serial Peripheral Interface, otherwise known as the SPI, is. and how it is used to communicate data to and from the PICmicro microcontroller.SPl is frequently used When few 1/O lines are available, but communication between two or more devices must be fast and easy to implement.In this presentation, we will discuss the following topics: We will first cover an Overview of SPI This section of the tutorial will introduce you to SPI and its concepts.Next, we will examine the use of SPI on the PICmicro MCU.The details of how SPI is implemented on a PICmicro device will be examined.Then, a Code Walkthrough will be given.The walkthough will explore code for both an SPI Master and SPI Slave. The example will have the Master generate data for sending to the slave.Finally, there will be a few resources given at the end of the presentation. These resources will allow you to explore in more detail the SPI interface
標簽： spi協議
上傳時間： 2022-06-20
上傳用戶：
VIP專區-嵌入式/單片機編程源碼精選合集系列（65）資源包含以下內容：1. DM9161應用電路原理圖來自DAVICOM網站。需要的可以自由下載.2. ALTERA CPLD器件的配置與下載,貢獻給初學習者,非長有用.3. This design package includes reference materials for creating a USB - PS/2 combination mouse that a.4. 字符表示的十六進制數轉化為相應的整數 錯誤則返回 -1 .5. C51的12864m.6. 8個字LED點陣的顯示程序.7. 51＋ch375超級經典的U盤讀寫程序嘿嘿趕快下載把.8. PWM控制電機C程序-已通過實驗測試 PWM控制精確控制電機的轉動..9. C51串口單工通訊程序一成功通過測試,請放心下載.10. 來自網上好心人的好東東,關于SD卡讀寫的,內附protel原理圖.11. 設計輸入 ! 多種設計輸入方法 – Quartus II • 原理圖式圖形設計輸入 • 文本編輯 – AHDL, VHDL, Verilog • 內存編輯 .12. 全是FPGA的例子 對大家應該有好處 大家趕快下把 知識不等人.13. 此為編程代碼示例.14. 此為編程代碼示例.15. 我在spartan-3e starter kit 的板上實現了mc8051.16. 完成MP3播放功能.17. 一個關于實時時鐘驅動方面的程序（ARM7）.18. 遍歷二叉樹的4個非遞歸算法 vc編程基礎.19. 快速排序的非遞歸算法 vc編程練習.20. 雷達高頻接收機.21. 我的開發板的所有測試程序.22. ps2的驅動.23. 密度測試儀的源碼.24. 本程序主要內容18b20+s52+uart單點測溫詳細c51程序.25. CPLD 9536 程序 我自己用的代碼. VHDL語言.26. AMD嵌入式處理器AU1200開發板原理圖.27. cpld3128開發板的原理圖 很有用,已經做成PCB,需要的話可以聯系我.28. ertfs文件系統里面既有完整ucos程序.29. 基于atmega128的交通信號燈控制程序.30. 利用軟件編寫的I2C傳輸界面程序,適用于現有4位機等匯編語言中!.31. I2C控制程序,供大家學習參考,使用時根據自己的系統修改..32. This designs uses a Nios II system to demonstrate how to read from the SD card. The software reads W.33. his design is the initial design When the board is powered-up. It increments a counter and displays.34. 用于多于9個串口的ce驅動程序。時間倉促。可以參考.35. CSD卡的dos驅動程序源碼.36. ADT700的小程序.37. 嵌入式的小程序.38. 基于cpld的hdb3編碼器 基于cpld的hdb3編碼器.39. 基于cpld的交通燈設計 ?赾pld的交通燈設計.40. 用于ARM9系列的S3C2440A的bootloader,Linux平臺.
標簽： 固件
上傳時間： 2013-04-15
上傳用戶：eeworm
