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VHDL-<b>Quick-Start</b>

  • TLC2543 中文资料

    TLC2543是TI公司的12位串行模数转换器,使用开关电容逐次逼近技术完成A/D转换过程。由于是串行输入结构,能够节省51系列单片机I/O资源;且价格适中,分辨率较高,因此在仪器仪表中有较为广泛的应用。 TLC2543的特点 (1)12位分辩率A/D转换器; (2)在工作温度范围内10μs转换时间; (3)11个模拟输入通道; (4)3路内置自测试方式; (5)采样率为66kbps; (6)线性误差±1LSBmax; (7)有转换结束输出EOC; (8)具有单、双极性输出; (9)可编程的MSB或LSB前导; (10)可编程输出数据长度。 TLC2543的引脚排列及说明    TLC2543有两种封装形式:DB、DW或N封装以及FN封装,这两种封装的引脚排列如图1,引脚说明见表1 TLC2543电路图和程序欣赏 #include<reg52.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int sbit clock=P1^0; sbit d_in=P1^1; sbit d_out=P1^2; sbit _cs=P1^3; uchar a1,b1,c1,d1; float sum,sum1; double  sum_final1; double  sum_final; uchar duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; uchar wei[]={0xf7,0xfb,0xfd,0xfe};  void delay(unsigned char b)   //50us {           unsigned char a;           for(;b>0;b--)                     for(a=22;a>0;a--); }  void display(uchar a,uchar b,uchar c,uchar d) {    P0=duan[a]|0x80;    P2=wei[0];    delay(5);    P2=0xff;    P0=duan[b];    P2=wei[1];    delay(5);   P2=0xff;   P0=duan[c];   P2=wei[2];   delay(5);   P2=0xff;   P0=duan[d];   P2=wei[3];   delay(5);   P2=0xff;   } uint read(uchar port) {   uchar  i,al=0,ah=0;   unsigned long ad;   clock=0;   _cs=0;   port<<=4;   for(i=0;i<4;i++)  {    d_in=port&0x80;    clock=1;    clock=0;    port<<=1;  }   d_in=0;   for(i=0;i<8;i++)  {    clock=1;    clock=0;  }   _cs=1;   delay(5);   _cs=0;   for(i=0;i<4;i++)  {    clock=1;    ah<<=1;    if(d_out)ah|=0x01;    clock=0; }   for(i=0;i<8;i++)  {    clock=1;    al<<=1;    if(d_out) al|=0x01;    clock=0;  }   _cs=1;   ad=(uint)ah;   ad<<=8;   ad|=al;   return(ad); }  void main()  {   uchar j;   sum=0;sum1=0;   sum_final=0;   sum_final1=0;    while(1)  {              for(j=0;j<128;j++)          {             sum1+=read(1);             display(a1,b1,c1,d1);           }            sum=sum1/128;            sum1=0;            sum_final1=(sum/4095)*5;            sum_final=sum_final1*1000;            a1=(int)sum_final/1000;            b1=(int)sum_final%1000/100;            c1=(int)sum_final%1000%100/10;            d1=(int)sum_final%10;            display(a1,b1,c1,d1);           }         } 

    标签: 2543 TLC

    上传时间: 2013-11-19

    上传用户:shen1230

  • [Arduino:A.Quick-Start.Guide].Maik.Schmidt.文字版

    Arduino 一些资料

    标签: Quick-Start Arduino Schmidt Guide

    上传时间: 2013-11-07

    上传用户:气温达上千万的

  • AVR单片机数码管秒表显示

    #include<iom16v.h> #include<macros.h> #define uint unsigned int #define uchar unsigned char uint a,b,c,d=0; void delay(c) { for for(a=0;a<c;a++) for(b=0;b<12;b++); }; uchar tab[]={ 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,

    标签: AVR 单片机 数码管

    上传时间: 2013-10-21

    上传用户:13788529953

  • 单片直接驱动数码管的计数器程序

      a_bit equ 20h ;个位数存放处   b_bit equ 21h ;十位数存放处   temp equ 22h ;计数器寄存器   star: mov temp,#0 ;初始化计数器   stlop: acall display   inc temp   mov a,temp   cjne a,#100,next ;=100重来   mov temp,#0   next: ljmp stlop   ;显示子程序   display: mov a,temp ;将temp中的十六进制数转换成10进制   mov b,#10 ;10进制/10=10进制   div ab   mov b_bit,a ;十位在a   mov a_bit,b ;个位在b   mov dptr,#numtab ;指定查表启始地址   mov r0,#4   dpl1: mov r1,#250 ;显示1000次   dplop: mov a,a_bit ;取个位数   MOVC A,@A+DPTR ;查个位数的7段代码   mov p0,a ;送出个位的7段代码

    标签: 直接驱动 数码管 计数器 程序

    上传时间: 2013-11-06

    上传用户:lx9076

  • P90CL301 IIC驱动电路的例行测试及其程序

    The P90CL301 is a highly integrated 16/32 bit micro-controller especially suitable for applications requiring lowvoltage and low power consumption. It is fully software compatible with the 68000. Furthermore, it provides bothstandard as well as advanced peripheral functions on-chip.One of these peripheral functions is the I2C bus. This report describes worked-out driver software (written in C) toprogram the P90CL301 I2C interface. It also contains interface software routines offering the user a quick start inwriting a complete I2C system application.

    标签: P90 301 IIC 90

    上传时间: 2014-01-06

    上传用户:气温达上千万的

  • XA-S3 I2C driver software

    This application note demonstrates how to write an Inter Integrated Circuit bus driver (I2C) for the XA-S3 16-bitMicrocontroller from Philips Semiconductors.Not only the driver software is given. This note also contains a set of (example) interface routines and a smalldemo application program. All together it offers the user a quick start in writing a complete I2C system applicationwith the PXAS3x.The driver routines support interrupt driven single master transfers. Furthermore, the routines are suitable foruse in conjunction with real time operating systems.

    标签: software driver XA-S I2C

    上传时间: 2013-11-02

    上传用户:zw380105939

  • XA-S3的IIC接口的驱动器软件程序(C语言)

    The XA-S3 is a member of Philips Semiconductors’ XA (eXtended Architecture) family of high performance 16-bit single-chip Microcontrollers. The XA-S3 combines many powerful peripherals on one chip. Therefore, it is suited for general multipurpose high performance embedded control functions.One of the on-chip peripherals is the I2C bus interface. This report describes worked-out driver software (written in C) to program / use the I2C interface of the XA-S3. The driver software, together with a demo program and interface software routines offer the user a quick start in writing a complete I2C - XAS3 system application.

    标签: XA-S IIC C语言 接口

    上传时间: 2013-11-10

    上传用户:liaofamous

  • 自己动手制作红外线探测防盗器

    工作原理            该装置电路原理见图1。由红外线传感器、信号放大电路、电压比较器、延时电路和音响报警电路等组成。红外线探测传感器IC1探测到前方人体辐射出的红外线信号时,由IC1的②脚输出微弱的电信号,经三极管VT1等组成第一级放大电路放大,再通过C2输入到运算放大器IC2中进行高增益、低噪声放大,此时由 IC2①脚输出的信号已足够强。IC3作电压比较器,它的第⑤脚由R10、VD1提供基准电压,当IC2①脚输出的信号电压到达IC3的⑥脚时,两个输入端的电压进行比较, 此时IC3的⑦脚由原来的高电平变为低电平。IC4为报警延时电路,R14和C6组成延时电路,其时间约为1分钟。当IC3的⑦脚变为低电平时,C6通过VD2放电,此时IC4的②脚变为低电平它与IC4的③脚基准电压进行比较,当它低于其基准电压时,IC4的①脚变为高电平,VT2 导通,讯响器BL通电发出报警声。人体的红外线信号消失后,IC3的⑦脚又恢复高电平输出,此时VD2截止。由于C6两端的电压不能突变, 故通过R14向 C6缓慢充电,当C6两端的电压高于其基准电压时,IC4的①脚才变为低电平,时间约为1分钟,即持续1分钟报警。

    标签: 自己动手 红外线 探测 防盗器

    上传时间: 2013-12-19

    上传用户:Breathe0125

  • CodeWarrior开发套件简明指南

    The CodeWarrior Development Suite provides access and technical support to amultitude of CodeWarrior products. In this quick start guide, Section 1 explains howto register your CodeWarrior Development Suite. Section 2 explains how to activateand install one of your products. Section 3 describes what you are entitled to withthe purchase of your CodeWarrior Development Suite, and Section 4 discusses theavailable purchase options. Section 5 describes the benefits of maintaining a currenttechnical support contract, and Section 6 tells you how to access support.

    标签: CodeWarrior 开发套件

    上传时间: 2014-03-02

    上传用户:784533221

  • labview中文教程

    第八章 labview的编程技巧     本章介绍局部变量、全局变量、属性节点和其他一些有助于提高编程技巧的问题,恰当地运用这些技巧可以提高程序的质量。   8.1 局部变量 严格的语法尽管可以保证程序语言的严密性,但有时它也会带来一些使用上的不便。在labview这样的数据流式的语言中,将变量严格地分为控制器(Control)和指示器(Indicator),前者只能向外流出数据,后者只能接受流入的数据,反过来不行。在一般的代码式语言中,情况不是这样的。例如我们有变量a、b和c,只要需要我们可以将a的值赋给b,将b的值赋给c等等。前面所介绍的labview内容中,只有移位积存器即可输入又可输出。另外,一个变量在程序中可能要在多处用到,在图形语言中势必带来过多连线,这也是一件烦人的事。还有其他需要,因此labview引入了局部变量。

    标签: labview 教程

    上传时间: 2013-10-27

    上传用户:xieguodong1234