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Parameter

參數(shù),也叫參變量,是一個(gè)變量。我們?cè)谘芯慨?dāng)前問題的時(shí)候,關(guān)心某幾個(gè)變量的變化以及它們之間的相互關(guān)系,其中有一個(gè)或一些叫自變量,另一個(gè)或另一些叫因變量。如果我們引入一個(gè)或一些另外的變量來(lái)描述自變量與因變量的變化,引入的變量本來(lái)并不是當(dāng)前問題必須研究的變量,我們把這樣的變量叫做參變量或參數(shù)。英文名:Parameter
  • spi 通信的master部分使用的verilog語(yǔ)言實(shí)現(xiàn)

    spi 通信的master部分使用的verilog語(yǔ)言實(shí)現(xiàn),可以做為你的設(shè)計(jì)參考。module spi_master(rstb,clk,mlb,start,tdat,cdiv,din, ss,sck,dout,done,rdata);    input rstb,clk,mlb,start;    input [7:0] tdat;  //transmit data    input [1:0] cdiv;  //clock divider input din; output reg ss;  output reg sck;  output reg dout;     output reg done; output reg [7:0] rdata; //received dataParameter idle=2'b00; Parameter send=2'b10; Parameter finish=2'b11; reg [1:0] cur,nxt; reg [7:0] treg,rreg; reg [3:0] nbit; reg [4:0] mid,cnt; reg shift,clr;

    標(biāo)簽: spi 通信 master verilog

    上傳時(shí)間: 2022-02-03

    上傳用戶:

  • verilog實(shí)現(xiàn)I2C通信的slave模塊源碼狀態(tài)機(jī)設(shè)位計(jì)可做I2C接口的仿真模型

    verilog實(shí)現(xiàn)I2C通信的slave模塊源碼狀態(tài)機(jī)設(shè)位計(jì)可做I2C接口的仿真模型//`timescale 1ns/1psmodule I2C_slv (input [6:0] slv_id,input       RESET,input       scl_i,      //I2C clkinput       sda_i,      //I2C data ininput [7:0] I2C_RDDATA,////////////////////////output reg       sda_o,     //I2C data outoutput reg       reg_w,     //reg write enable pulse (1T of scl_i)output reg [7:0] I2C_ADDR,output reg [7:0] I2C_DATA);  Parameter ST_ADDR    = 4'd0;  Parameter ST_ACK     = 4'd1;  Parameter ST_WDATA1  = 4'd2;  Parameter ST_WACK1   = 4'd3;  Parameter ST_WDATA2  = 4'd4;  Parameter ST_WACK2   = 4'd5;  Parameter ST_WDATA3  = 4'd6;  Parameter ST_WACK3   = 4'd7;  Parameter ST_RDATA1  = 4'd8;  Parameter ST_RACK1   = 4'd9;  Parameter ST_IDLE    = 4'd15;//---------------------------------------------------------------------------// Signal Declaration//---------------------------------------------------------------------------  reg        i2c_start_n, i2c_stop_n;  //wire       RESET_scl;  wire       i2c_stp_n, i2c_RESET;  reg [3:0]  i2c_cs, i2c_ns;  reg [3:0]  cnt_bit;  reg [7:0]  d_vec;  reg        i2c_rd, i2c_ack;  reg [7:0]  I2C_RDDATA_latch;

    標(biāo)簽: verilog i2c 通信 slave

    上傳時(shí)間: 2022-02-03

    上傳用戶:

  • 基于單片機(jī)的紅外測(cè)溫裝置設(shè)計(jì)

    溫度控制如今已成為當(dāng)代社會(huì)研究的熱點(diǎn)之一,而溫度檢測(cè)在現(xiàn)代設(shè)備參數(shù)檢測(cè)中也是一項(xiàng)極其重要的技術(shù),應(yīng)用十分廣泛。與傳統(tǒng)的測(cè)溫方法相比,紅外測(cè)溫方法具有時(shí)間短、精度高、使用簡(jiǎn)單方便等優(yōu)點(diǎn)。本文以環(huán)境溫度為被測(cè)對(duì)象,設(shè)計(jì)了以STC89C52單片機(jī)為控制中心的紅外測(cè)溫裝置,能夠?qū)崿F(xiàn)對(duì)目標(biāo)溫度的實(shí)時(shí)采集、處理、顯示和報(bào)警等功能。本設(shè)計(jì)主要是由STC89C52單片機(jī)、紅外測(cè)溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對(duì)目標(biāo)溫度進(jìn)行實(shí)時(shí)檢測(cè)。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment Parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.

    標(biāo)簽: 單片機(jī) 紅外測(cè)溫

    上傳時(shí)間: 2022-03-27

    上傳用戶:jiabin

  • 基于LabVIEW和單片機(jī)的自動(dòng)控制系統(tǒng)綜合實(shí)驗(yàn)

    設(shè)計(jì)了自動(dòng)控制系統(tǒng)綜合實(shí)驗(yàn)案例“基于LabVIEW和單片機(jī)的溫度控制系統(tǒng)設(shè)計(jì)”。實(shí)驗(yàn)系統(tǒng)硬件部分由單片機(jī)、溫度傳感器、D/A轉(zhuǎn)換模塊、調(diào)壓模塊和電烤箱組成,設(shè)計(jì)了單片機(jī)與各個(gè)模塊之間的接口電路。軟件部分采用LabVIEW軟件實(shí)現(xiàn)控制算法,并設(shè)計(jì)監(jiān)控界面實(shí)現(xiàn)參數(shù)設(shè)定、溫度數(shù)據(jù)實(shí)時(shí)監(jiān)控等功能。設(shè)計(jì)了單片機(jī)與LabVIEW軟件之間的串口通信程序,實(shí)現(xiàn)了輸入、輸出數(shù)據(jù)的傳輸。通過綜合實(shí)驗(yàn)系統(tǒng)設(shè)計(jì),使學(xué)生得到控制系統(tǒng)設(shè)計(jì)和實(shí)驗(yàn)調(diào)試等綜合能力的訓(xùn)練。A comprehensive experimental case of the automatic control system is presented,which is the design of the temperature control system based on LabVIEW and SCM.The hardware part of the experimental system is composed of the SCM,temperature sensor,D/A conversion module,voltage regulating module and electric oven.The interface circuit between the SCM and each module is designed.In the software part,LabVIEW software is used to realize the control algorithm,and the monitoring interface is designed to realize the functions of Parameter setting,temperature data real-time monitoring,etc.The serial communication program between the SCM and LabVIEW software is designed to realize the transmission of input and output data.Through the design of this comprehensive experimental system,students can get the comprehensive ability training for the control system design,experiment debugging,etc.

    標(biāo)簽: labview 單片機(jī) 自動(dòng)控制系統(tǒng)

    上傳時(shí)間: 2022-03-27

    上傳用戶:qdxqdxqdxqdx

  • MOSFET開關(guān)過程的研究及米勒平臺(tái)振蕩的抑制

    設(shè)計(jì)功率MOSFET驅(qū)動(dòng)電路時(shí)需重點(diǎn)考慮寄生參數(shù)對(duì)電路的影響。米勒電容作為MOSFET器件的一項(xiàng)重要參數(shù),在驅(qū)動(dòng)電路的設(shè)計(jì)時(shí)需要重點(diǎn)關(guān)注。重點(diǎn)觀察了MOSFET的開通和關(guān)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(shù)對(duì)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(tái)附近產(chǎn)生振蕩的原因,并提出了抑制措施,對(duì)功率MOSFET的驅(qū)動(dòng)設(shè)計(jì)具有一定的指導(dǎo)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(biāo)簽: mosfet

    上傳時(shí)間: 2022-04-02

    上傳用戶:默默

  • 基于DSP28335+I(xiàn)R2110芯片的移相全橋驅(qū)動(dòng)電路設(shè)計(jì)

    為解決移相全橋電路驅(qū)動(dòng)及相角控制問題,設(shè)計(jì)了一種數(shù)字控制的移相全橋驅(qū)動(dòng)電路.以TPL521為光耦隔離、IR2110為柵極驅(qū)動(dòng)芯片.由DSP產(chǎn)生PWM信號(hào),經(jīng)過光耦隔離和邏輯電路后送至IR2110進(jìn)行相角控制.文章對(duì)IR2110驅(qū)動(dòng)電路原理進(jìn)行分析及參數(shù)進(jìn)行設(shè)計(jì),對(duì)TMS320F28335進(jìn)行設(shè)置并給出部分代碼.實(shí)驗(yàn)結(jié)果表明:通過TMS320F28335可產(chǎn)生的不同相角的PWM波形,滿足了移相全橋?qū)Σ煌嘟强刂频囊?In order to solve the problem of phase-shifted full-bridge circuit driving and phase angle control,a digitally controlled phaseshifted full-bridge driving circuit was designed. TPL521 optocoupler isolation,IR2110 gate driver chip. PWM signals are generated by the DSP and sent to the IR2110 for phase angle control after optocoupler isolation and logic circuits. This text carries on the analysis to the principle of IR2110 drive circuit and Parameter design,set up and give out some code to TMS320F28335. The experimental results show that the PWM waveforms with different phase angles generated by TMS320F28335 can meet the requirements of phase-shifted full-bridge control for different phase angles.

    標(biāo)簽: dsp28335 ir2110 芯片

    上傳時(shí)間: 2022-05-03

    上傳用戶:zhanglei193

  • 基于PSIM仿真的開關(guān)電源Boost電路的設(shè)計(jì)

    基于PSIM仿真軟件,分析了Boost電路拓?fù)浣Y(jié)構(gòu),設(shè)定了參數(shù)要求進(jìn)行電路仿真設(shè)計(jì),通過電路仿真軟件PSIM對(duì)Boost電路工作在CCM模式下,合理設(shè)置占空比參數(shù)。實(shí)驗(yàn)結(jié)果表明理論分析與仿真的一致性和參數(shù)設(shè)計(jì)的正確性,輸出電壓和電流參數(shù)穩(wěn)定,Boost電路輸出效率高。This design is based on PSIM simulation software,analyzes the topology of Boost circuit,sets the Parameter re- quirements for circuit simulation design,and reasonably sets the duty cycle Parameters for Boost circuit working in CCM mode through PSIM simulation software.The experimental results show that the theoretical analysis and simulation are consis- tent and the Parameter design is correct,the output voltage and current Parameters are stable.

    標(biāo)簽: psim 開關(guān)電源 boost

    上傳時(shí)間: 2022-05-04

    上傳用戶:

  • Sigmawin+軟件-伺服操作說(shuō)明

    1運(yùn)行sigmawin+1.1選擇伺服驅(qū)動(dòng)器sigmawin+軟件開始運(yùn)行時(shí),會(huì)看到選擇連接的對(duì)話框,根據(jù)實(shí)際使用的通信端口來(lái)選擇伺服驅(qū)動(dòng)器和PC的連接。選擇連接伺服驅(qū)動(dòng)器的方式:在線或離線狀態(tài),在線狀態(tài)是默認(rèn)設(shè)置在線方式:當(dāng)要對(duì)伺服驅(qū)動(dòng)器進(jìn)行調(diào)諧和設(shè)置時(shí)需要使用在線方式離線方式:當(dāng)要對(duì)參數(shù)進(jìn)行調(diào)整以及檢查屏幕顯示和機(jī)械分析時(shí)使用離線方式當(dāng)采用離線方式時(shí)選擇相應(yīng)系列的伺服,之后會(huì)出現(xiàn)sigmawin+軟件的主窗口當(dāng)選擇在現(xiàn)方式時(shí)之后進(jìn)行必要的通信端口的選擇點(diǎn)擊search按鈕,搜索當(dāng)先連接的端口,注:2-V為USB端口點(diǎn)擊search按鈕,當(dāng)驅(qū)動(dòng)器和PC成功連接后會(huì)出現(xiàn)如下對(duì)話框點(diǎn)擊出現(xiàn)的相應(yīng)型號(hào)的伺服驅(qū)動(dòng)器然后按connect按鈕或者直接雙擊伺服驅(qū)動(dòng)器來(lái)進(jìn)行連接,sigmawin+軟件的主窗口就會(huì)出現(xiàn),點(diǎn)擊cancel關(guān)閉當(dāng)前對(duì)話框。Sigmawin+連接2-V后出現(xiàn)主窗口所有的應(yīng)用功能都可以通過菜單欄或工具欄上面使用1.2工具欄直接點(diǎn)擊工具欄上的圖標(biāo)就可以使用相應(yīng)的功能1.3參數(shù)設(shè)定伺服驅(qū)動(dòng)器的參數(shù)可以在離線模式和在線模式下進(jìn)行設(shè)置,但是這兩種狀態(tài)下的參數(shù)設(shè)置畫面是不同的。1.4參數(shù)的轉(zhuǎn)換在sigmawin+軟件主窗口中,點(diǎn)擊Parameters然后點(diǎn)擊Parameter converter選擇需要轉(zhuǎn)換的參數(shù)文件,即其他系列的伺服驅(qū)動(dòng)器,點(diǎn)擊open選中的文件將被導(dǎo)入,源文件對(duì)應(yīng)的驅(qū)動(dòng)器的型號(hào)會(huì)顯示在conversion source中。轉(zhuǎn)換后對(duì)應(yīng)的驅(qū)動(dòng)器型號(hào)也會(huì)在conversion destination中自動(dòng)設(shè)置。注:如果選擇了不能轉(zhuǎn)換的文件,會(huì)出現(xiàn)以下對(duì)話框提示你選擇了不能轉(zhuǎn)換的文件。點(diǎn)擊convert已選擇的之前系列的驅(qū)動(dòng)器參數(shù)文件將被轉(zhuǎn)換成和2-V系列驅(qū)動(dòng)器相一致的參數(shù)數(shù)據(jù),而且會(huì)保存在新建的參數(shù)文件中。轉(zhuǎn)換完成后,轉(zhuǎn)換結(jié)果會(huì)顯示在參數(shù)轉(zhuǎn)換窗口中。如下:

    標(biāo)簽: sigmawin

    上傳時(shí)間: 2022-05-31

    上傳用戶:

  • stm32cubeMX串口使用文檔

    一建立STM32cubeMX工程1.建立新工程,選擇芯片STM32F302CCTx2. 在Pinout 中時(shí)鐘配置為高速外部時(shí)鐘, UART配置為異步通信, cube 會(huì)自動(dòng)分配引腳。3.Clock Configuration 中配置如下4.configuration 中點(diǎn)擊USART1可進(jìn)入配置在USART1 configuration 中Parameter Settings 可以配置波特率,發(fā)送數(shù)據(jù)字長(zhǎng),奇偶校驗(yàn)位和停止位等。NVIC Setting 可以配置中斷優(yōu)先級(jí)。5.生成keil 軟件代碼點(diǎn)擊工具欄中的齒輪按鈕,可以選擇代碼的開發(fā)平臺(tái), ok 結(jié)束。(文件保存路徑一定要是全英文的)進(jìn)過了我們一系列的配置, cube 會(huì)為我們自動(dòng)生成keil 軟件的代碼,代碼中包括工程所需的固件庫(kù),配套的頭文件,啟動(dòng)文件及用戶文件。在main.c 中包括了我們工程所需外設(shè)的初始化,包括了系統(tǒng)時(shí)鐘初始化,中斷初始化, GPIO初始化, USART1初始化, HAL庫(kù)初始化。我們只需要在main.c 中添加我們自己的代碼就可以了。二keil 軟件代碼及HAL庫(kù)使用UART_HandleTypeDef huart1;生成的代碼中有聲明一個(gè)USART處理的結(jié)構(gòu)體HAL庫(kù)中串口的數(shù)據(jù)收發(fā)有四個(gè)函數(shù)HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_tSize, uint32_t Timeout);HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_tSize, uint32_t Timeout);指針huart 指向我們之前定義的USART處理結(jié)構(gòu)體, 我們將在函數(shù)中對(duì)結(jié)構(gòu)體中的參數(shù)進(jìn)行操作。pDate 是我們自己定義的數(shù)據(jù)發(fā)送接收緩存, Size 發(fā)送接收數(shù)據(jù)個(gè)數(shù), Timeout 超時(shí)持續(xù)時(shí)間。UART狀態(tài)的結(jié)構(gòu)體:我們?cè)诎l(fā)送接收函數(shù)中要經(jīng)常對(duì)USART的狀態(tài)進(jìn)行判斷,以便我們對(duì)函數(shù)結(jié)構(gòu)體中的參數(shù)進(jìn)行操作

    標(biāo)簽: stm32cubemx 串口

    上傳時(shí)間: 2022-06-22

    上傳用戶:shjgzh

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