2012TI杯陜西賽題H題,2012TI杯陜西賽題B題--頻率補(bǔ)償電路.
標(biāo)簽: 2012 TI 頻率補(bǔ)償電路
上傳時(shí)間: 2013-10-07
上傳用戶:ysystc670
PSHLY-B回路電阻測(cè)試儀介紹
標(biāo)簽: PSHLY-B 回路 電阻測(cè)試儀
上傳時(shí)間: 2013-11-05
上傳用戶:木子葉1
針對(duì)目前使用的RS232接口數(shù)字化B超鍵盤存在PC主機(jī)啟動(dòng)時(shí)不能設(shè)置BIOS,提出一種PS2鍵盤的設(shè)計(jì)方法。基于W78E052D單片機(jī),采用8通道串行A/D轉(zhuǎn)換器設(shè)計(jì)了8個(gè)TGC電位器信息采集電路,電位器位置信息以鍵盤掃描碼序列形式發(fā)送,正交編碼器信號(hào)通過XC9536XL轉(zhuǎn)換為單片機(jī)可接收的中斷信號(hào),軟件接收到中斷信息后等效處理成按鍵。結(jié)果表明,在滿足開機(jī)可設(shè)置BIOS同時(shí),又可實(shí)現(xiàn)超聲特有功能,不需要專門設(shè)計(jì)驅(qū)動(dòng)程序,接口簡(jiǎn)單,成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot, this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller,designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter, potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU, software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot, ultrasound specific functionality can be achieved at the same time, it does not require specially designed driver,the interface is simple and low cost.
標(biāo)簽: 單片機(jī) B超 數(shù)字化 鍵盤設(shè)計(jì)
上傳時(shí)間: 2013-10-10
上傳用戶:asdfasdfd
TKS仿真器B系列快速入門
上傳時(shí)間: 2013-10-31
上傳用戶:aix008
飛思卡爾智能車的舵機(jī)測(cè)試程序 #include <hidef.h> /* common defines and macros */#include <MC9S12XS128.h> /* derivative information */#pragma LINK_INFO DERIVATIVE "mc9s12xs128" void SetBusCLK_16M(void) { CLKSEL=0X00; PLLCTL_PLLON=1; //鎖相環(huán)電路允許位 SYNR=0x00 | 0x01; //SYNR=1 REFDV=0x80 | 0x01; POSTDIV=0x00; _asm(nop); _asm(nop); while(!(CRGFLG_LOCK==1)); CLKSEL_PLLSEL =1; } void PWM_01(void) { //舵機(jī)初始化 PWMCTL_CON01=1; //0和1聯(lián)合成16位PWM; PWMCAE_CAE1=0; //選擇輸出模式為左對(duì)齊輸出模式 PWMCNT01 = 0; //計(jì)數(shù)器清零; PWMPOL_PPOL1=1; //先輸出高電平,計(jì)數(shù)到DTY時(shí),反轉(zhuǎn)電平 PWMPRCLK = 0X40; //clockA 不分頻,clockA=busclock=16MHz;CLK B 16分頻:1Mhz PWMSCLA = 0x08; //對(duì)clock SA 16分頻,pwm clock=clockA/16=1MHz; PWMCLK_PCLK1 = 1; //選擇clock SA做時(shí)鐘源 PWMPER01 = 20000; //周期20ms; 50Hz; PWMDTY01 = 1500; //高電平時(shí)間為1.5ms; PWME_PWME1 = 1;
標(biāo)簽: 飛思卡爾智能車 舵機(jī) 測(cè)試程序
上傳時(shí)間: 2013-11-04
上傳用戶:狗日的日子
一個(gè)簡(jiǎn)單好用的B+樹算法實(shí)現(xiàn)
上傳時(shí)間: 2015-01-04
上傳用戶:縹緲
一個(gè)用Basic實(shí)現(xiàn)的B-Tree算法
上傳時(shí)間: 2013-12-30
上傳用戶:ccclll
一個(gè)用Java applet實(shí)現(xiàn)的B-Tree算法
標(biāo)簽: B-Tree applet Java 算法
上傳時(shí)間: 2013-12-25
上傳用戶:qiao8960
用C++實(shí)現(xiàn)的B-Tree算法
上傳時(shí)間: 2014-01-20
上傳用戶:jiahao131
用Borland C寫的B-Tree算法
上傳時(shí)間: 2014-12-05
上傳用戶:xzt
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