All inputs of the C16x family have Schmitt-Trigger input characteristics. These Schmitt-Triggers are intended to always provide proper internal low and high levels, even if anundefined voltage level (between TTL-VIL and TTL-VIH) is externally applied to the pin.The hysteresis of these inputs, however, is very small, and can not be properly used in anapplication to suppress signal noise, and to shape slow rising/falling input transitions.Thus, it must be taken care that rising/falling input signals pass the undefined area of theTTL-specification between VIL and VIH with a sufficient rise/fall time, as generally usualand specified for TTL components (e.g. 74LS series: gates 1V/us, clock inputs 20V/us).The effect of the implemented Schmitt-Trigger is that even if the input signal remains inthe undefined area, well defined low/high levels are generated internally. Note that allinput signals are evaluated at specific sample points (depending on the input and theperipheral function connected to it), at that signal transitions are detected if twoconsecutive samples show different levels. Thus, only the current level of an input signalat these sample points is relevant, that means, the necessary rise/fall times of the inputsignal is only dependant on the sample rate, that is the distance in time between twoconsecutive evaluation time points. If an input signal, for instance, is sampled throughsoftware every 10us, it is irrelevant, which input level would be seen between thesamples. Thus, it would be allowable for the signal to take 10us to pass through theundefined area. Due to the sample rate of 10us, it is assured that only one sample canoccur while the signal is within the undefined area, and no incorrect transition will bedetected. For inputs which are connected to a peripheral function, e.g. capture inputs, thesample rate is determined by the clock cycle of the peripheral unit. In the case of theCAPCOM unit this means a sample rate of 400ns @ 20MHz CPU clock. This requiresinput signals to pass through the undefined area within these 400ns in order to avoidmultiple capture events.For input signals, which do not provide the required rise/fall times, external circuitry mustbe used to shape the signal transitions.In the attached diagram, the effect of the sample rate is shown. The numbers 1 to 5 in thediagram represent possible sample points. Waveform a) shows the result if the inputsignal transition time through the undefined TTL-level area is less than the time distancebetween the sample points (sampling at 1, 2, 3, and 4). Waveform b) can be the result ifthe sampling is performed more than once within the undefined area (sampling at 1, 2, 5,3, and 4).Sample points:1. Evaluation of the signal clearly results in a low level2. Either a low or a high level can be sampled here. If low is sampled, no transition willbe detected. If the sample results in a high level, a transition is detected, and anappropriate action (e.g. capture) might take place.3. Evaluation here clearly results in a high level. If the previous sample 2) had alreadydetected a high, there is no change. If the previous sample 2) showed a low, atransition from low to high is detected now.
標(biāo)簽： Signal Input Fall Rise
上傳時間： 2013-10-23
上傳用戶：copu
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.
上傳時間： 2014-01-06
上傳用戶：氣溫達(dá)上千萬的
All inputs of the C16x family have Schmitt-Trigger input characteristics. These Schmitt-Triggers are intended to always provide proper internal low and high levels, even if anundefined voltage level (between TTL-VIL and TTL-VIH) is externally applied to the pin.The hysteresis of these inputs, however, is very small, and can not be properly used in anapplication to suppress signal noise, and to shape slow rising/falling input transitions.Thus, it must be taken care that rising/falling input signals pass the undefined area of theTTL-specification between VIL and VIH with a sufficient rise/fall time, as generally usualand specified for TTL components (e.g. 74LS series: gates 1V/us, clock inputs 20V/us).The effect of the implemented Schmitt-Trigger is that even if the input signal remains inthe undefined area, well defined low/high levels are generated internally. Note that allinput signals are evaluated at specific sample points (depending on the input and theperipheral function connected to it), at that signal transitions are detected if twoconsecutive samples show different levels. Thus, only the current level of an input signalat these sample points is relevant, that means, the necessary rise/fall times of the inputsignal is only dependant on the sample rate, that is the distance in time between twoconsecutive evaluation time points. If an input signal, for instance, is sampled throughsoftware every 10us, it is irrelevant, which input level would be seen between thesamples. Thus, it would be allowable for the signal to take 10us to pass through theundefined area. Due to the sample rate of 10us, it is assured that only one sample canoccur while the signal is within the undefined area, and no incorrect transition will bedetected. For inputs which are connected to a peripheral function, e.g. capture inputs, thesample rate is determined by the clock cycle of the peripheral unit. In the case of theCAPCOM unit this means a sample rate of 400ns @ 20MHz CPU clock. This requiresinput signals to pass through the undefined area within these 400ns in order to avoidmultiple capture events.
上傳時間： 2014-04-02
上傳用戶：han_zh
The MC68HC05K0 is a low cost, low pin countsingle chip microcomputer with 504 bytes of userROM and 32 bytes of RAM. The MC68HC05K0 isa member of the 68HC05K series of devices whichare available in 16-pin DIL or SOIC packages.It uses the same CPU as the other devices in the68HC05 family and has the same instructions andregisters. Additionally, the device has a 15-stagemulti-function timer and 10 general purposebi-directional I/0 lines. A mask option is availablefor software programmable pull-downs on all ofthe I/O pins and four of the pins are capable ofgenerating interrupts.The device is ideally suited for remote-controlkeyboard applications because the pull-downs andthe interrupt drivers on the port pins allowkeyboards to be built without any externalcomponents except the keys themselves. There isno need for external pull-up or pull-down resistors,or diodes for wired-OR interrupts, as these featuresare already designed into the device.
標(biāo)簽： Infra-red Remote Cont 05K
上傳時間： 2014-01-24
上傳用戶：zl5712176
當(dāng)拿到一張CASE單時，首先得確定的是能用什么母體才能實(shí)現(xiàn)此功能，然后才能展開對外圍硬件電路的設(shè)計(jì)，因此首先得了解每個母體的基本功能及特點(diǎn)，下面大至的介紹一下本公司常用的IC：單芯片解決方案• SN8P1900 系列– 高精度 16-Bit 模數(shù)轉(zhuǎn)換器– 可編程運(yùn)算放大器 (PGIA)• 信號放大低漂移: 2V• 放大倍數(shù)可編程: 1/16/64/128 倍– 升壓- 穩(wěn)壓調(diào)節(jié)器 (Charge-Pump Regulator)• 電源輸入: 2.4V ~ 5V• 穩(wěn)壓輸出: e.g. 3.8V at SN8P1909– 內(nèi)置液晶驅(qū)動電路 (LCD Driver)– 單芯片解決方案 • 耳溫槍 SN8P1909 LQFP 80 Pins• 5000 解析度量測器 SN8P1908 LQFP 64 Pins• 體重計(jì) SN8P1907 SSOP 48 Pins單芯片解決方案• SN8P1820 系列– 精確的12-Bit 模數(shù)轉(zhuǎn)換器– 可編程運(yùn)算放大器 (PGIA)• Gain Stage One: Low Offset 5V, Gain: 16/32/64/128• Gain Stage One: Low Offset 2mV, Gain: 1.3 ~ 2.5– 升壓- 穩(wěn)壓調(diào)節(jié)器• 電源輸入: 2.4V ~ 5V• 穩(wěn)壓輸出: e.g. 3.8V at SN8P1829– 內(nèi)置可編程運(yùn)算放大電路– 內(nèi)置液晶驅(qū)動電路 – 單芯片解決方案 • 電子醫(yī)療器 SN8P1829 LQFP 80 Pins 高速/低功耗/高可靠性微控制器• 最新SN8P2000 系列– SN8P2500/2600/2700 系列– 高度抗交流雜訊能力• 標(biāo)準(zhǔn)瞬間電壓脈沖群測試 (EFT): IEC 1000-4-4• 雜訊直接灌入芯片電源輸入端• 只需添加1顆 2.2F/50V 旁路電容• 測試指標(biāo)穩(wěn)超 4000V (歐規(guī))– 高可靠性復(fù)位電路保證系統(tǒng)正常運(yùn)行• 支持外部復(fù)位和內(nèi)部上電復(fù)位• 內(nèi)置1.8V 低電壓偵測可靠復(fù)位電路• 內(nèi)置看門狗計(jì)時器保證程序跳飛可靠復(fù)位– 高抗靜電/栓鎖效應(yīng)能力– 芯片工作溫度有所提高: -200C ~ 700C 工規(guī)芯片溫度： -400C ~ 850C 高速/低功耗/高可靠性微控制器• 最新 SN8P2000 系列– SN8P2500/2600/2700 系列– 1T 精簡指令級結(jié)構(gòu)• 1T: 一個外部振蕩周期執(zhí)行一條指令• 工作速度可達(dá)16 MIPS / 16 MHz Crystal– 工作消耗電流 < 2mA at 1-MIPS/5V– 睡眠模式下消耗電流 < 1A / 5V額外功能• 高速脈寬調(diào)制輸出 (PWM)– 8-Bit PWM up to 23 KHz at 12 MHz System Clock– 6-Bit PWM up to 93 KHz at 12 MHz System Clock– 4-Bit PWM up to 375 KHz at 12 MHz System Clock• 內(nèi)置高速16 MHz RC振蕩器 (SN8P2501A)• 電壓變化喚醒功能• 可編程控制沿觸發(fā)/中斷功能– 上升沿 / 下降沿 / 雙沿觸發(fā)• 串行編程接口
標(biāo)簽： 單片機(jī) 線路設(shè)計(jì)
上傳時間： 2013-10-21
上傳用戶：jiahao131
//芯片資料請到www.elecfans.com查找 //DS1820 C51 子程序//這里以11.0592M晶體為例，不同的晶體速度可能需要調(diào)整延時的時間//sbit DQ =P2^1;//根據(jù)實(shí)際情況定義端口 typedef unsigned char byte;typedef unsigned int word; //延時void delay(word useconds){ for(;useconds>0;useconds--);} //復(fù)位byte ow_reset(void){ byte presence; DQ = 0; //pull DQ line low delay(29); // leave it low for 480us DQ = 1; // allow line to return high delay(3); // wait for presence presence = DQ; // get presence signal delay(25); // wait for end of timeslot return(presence); // presence signal returned} // 0=presence, 1 = no part //從 1-wire 總線上讀取一個字節(jié)byte read_byte(void){ byte i; byte value = 0; for (i=8;i>0;i--) { value>>=1; DQ = 0; // pull DQ low to start timeslot DQ = 1; // then return high delay(1); //for (i=0; i<3; i++); if(DQ)value|=0x80; delay(6); // wait for rest of timeslot } return(value);} //向 1-WIRE 總線上寫一個字節(jié)void write_byte(char val){ byte i; for (i=8; i>0; i--) // writes byte, one bit at a time { DQ = 0; // pull DQ low to start timeslot DQ = val&0x01; delay(5); // hold value for remainder of timeslot DQ = 1; val=val/2; } delay(5);} //讀取溫度char Read_Temperature(void){ union{ byte c[2]; int x; }temp; ow_reset(); write_byte(0xCC); // Skip ROM write_byte(0xBE); // Read Scratch Pad temp.c[1]=read_byte(); temp.c[0]=read_byte(); ow_reset(); write_byte(0xCC); //Skip ROM write_byte(0x44); // Start Conversion return temp.x/2;}
上傳時間： 2013-11-03
上傳用戶：hongmo
//遙控解碼子程序，LC7461，用戶碼為11C//external interrupt0void isr_4(){ unsigned char r_count;//定義解碼的個數(shù) unsigned long use_data=0;//定義16位的用戶碼，只用到13位 unsigned long use_code=0;//定義16位的用戶反碼，只用到13位 unsigned long data=0;//定義16位數(shù)據(jù)碼，包括8位數(shù)據(jù)碼和反碼 unsigned char data_h=0;//數(shù)據(jù)反碼 unsigned char data_l=0;//數(shù)據(jù)碼 _clrwdt();// _delay(7000);//7461解碼，延時7000// _delay(7000);//7461解碼，延時7000//_delay(7000);//7461解碼，延時7000 if(remote==1) goto error; while(remote==0);//wait to high //_delay(9744);count_delay=0; while(count_delay<143); if(remote==1) goto error; /////用戶碼解碼use_data//////////add////////////////////////// for(r_count=13;r_count>0;r_count--) { while(remote==0);//wait to high count_delay=0; while(count_delay<24);//_delay(1680); _c=remote; if(_c==1) { _lrrc(&use_data); count_delay=0; while(count_delay<32);//_delay(2200);//wait to low } else _lrrc(&use_data); } _nop(); //if(remote==1) //_delay(1680);//wait to low while(remote==1);//wait to low _nop(); ////////用戶碼解碼finish/////////add/////////add//////// /////用戶碼反碼解碼use_code//////////add////////////////////////// for(r_count=13;r_count>0;r_count--) { while(remote==0);//wait to high count_delay=0; while(count_delay<24);//_delay(1680); _c=remote; if(_c==1) { _lrrc(&use_code); count_delay=0; while(count_delay<32);//_delay(2200);//wait to low } else _lrrc(&use_code); } _nop(); //if(remote==1) // _delay(1680);//wait to low while(remote==1);//wait to low _nop(); ////////用戶碼反碼解碼finish/////////add/////////add//////// ////數(shù)據(jù)碼解碼開始////data_l為用戶碼，data_h為數(shù)據(jù)碼反碼//////////// for(r_count=16;r_count>0;r_count--) { while(remote==0);//wait to high count_delay=0; while(count_delay<24);//_delay(1680); _c=remote; if(_c==1) { _lrrc(&data); count_delay=0; while(count_delay<32);//_delay(2200);//wait to low } else _lrrc(&data); } ////數(shù)據(jù)碼解碼結(jié)束//////////////////////////////////////////////// data_l=data; data_h=data>>8; ///用戶碼////// use_data>>=3; use_code>>=3; use_code=~use_code; //////// ////如果用戶碼等與0x11c并且數(shù)據(jù)碼和數(shù)據(jù)反碼都校驗(yàn)一致，解碼成功 //if((~data_h==data_l)&&use_data==0x11c)//使用用戶碼 //跳過用戶碼 if(~data_h==data_l)//如果數(shù)據(jù)碼和數(shù)據(jù)反碼（取反后）相等，解碼正確 { _nop(); r_data=data_l;//r_data為解出的最終數(shù)據(jù)碼 } //否則解碼不成功 _nop(); _nop();error: //r_data=nocode; _nop(); _nop(); _nop();}
上傳時間： 2014-03-27
上傳用戶：shenlan
單片機(jī)應(yīng)用技術(shù)選編(3) 目錄 第一章 單片機(jī)的綜合應(yīng)用技術(shù)1.1 8098單片機(jī)存儲器的擴(kuò)展技術(shù)1.2 87C196KC單片機(jī)的DMA功能1.3 MCS?96系列單片機(jī)高精度接口設(shè)計(jì)1.4 利用PC機(jī)的8096軟件開發(fā)系統(tǒng)1.5 EPROM模擬器及其應(yīng)用1.6 MCS?51智能反匯編軟件的設(shè)計(jì)與實(shí)現(xiàn)1.7 MCS?51系列軟件設(shè)計(jì)與調(diào)試中一個值得注意的問題1.8 PL／M語言在微機(jī)開發(fā)系統(tǒng)中的應(yīng)用特性1.9 MCS?51單片機(jī)開發(fā)系統(tǒng)中的斷點(diǎn)產(chǎn)生1.10 C語言實(shí)型數(shù)與單片機(jī)浮點(diǎn)數(shù)之間數(shù)據(jù)格式的轉(zhuǎn)換1.11 微機(jī)控制系統(tǒng)初始化問題探討1.12 MCS?51中斷系統(tǒng)中的復(fù)位問題1.13 工業(yè)控制軟件的編程原則與編程技巧1.14 CMOS微處理器的功耗特性及其功耗控制原理和應(yīng)用1.15 基于PLL技術(shù)的A/D、D/A轉(zhuǎn)換器的設(shè)計(jì)1.16 智能儀器監(jiān)控程序的模塊化設(shè)計(jì)1.17 用軟件邏輯開關(guān)實(shí)現(xiàn)單片機(jī)的地址重疊使用1.18 8259A可編程中斷控制器與8031單片機(jī)接口電路及編程1.19 NSC810及其在各種微處理機(jī)中的應(yīng)用1.20 MC146818在使用中的幾個問題1.21 交流伺服系統(tǒng)中采用8155兼作雙口信箱存儲器的雙微機(jī)結(jié)構(gòu)1.22 實(shí)用漢字庫芯片的制作 第二章 新一代存儲器及邏輯器件2.1 新一代非易失性記憶元件--閃爍存儲器2.2 Flash存儲器及應(yīng)用2.3 隨機(jī)靜態(tài)存儲器HM628128及應(yīng)用2.4 非揮發(fā)性隨機(jī)存儲器NOVRAM2.5 ASIC的設(shè)計(jì)方法和設(shè)計(jì)工具2.6 GAL器件的編程方法及其應(yīng)用2.7 第三代可編程邏輯器件--高密EPLD輯器件EPLDFPGA設(shè)計(jì)轉(zhuǎn)換 第三章 數(shù)據(jù)采集、前向通道與測量技術(shù) 3.1 溫度傳感器通道接口技術(shù) 3.2 LM135系列精密溫度傳感器的原理和應(yīng)用 3.3 儀表放大器AD626的應(yīng)用 3.4 5G7650使用中應(yīng)注意的問題 3.5 用集成運(yùn)算放大器構(gòu)成電荷放大器組件 3.6 普通光電耦合器的線性應(yīng)用 3.7 高線性光耦合型隔離放大器的研制 3.8 一種隔離型16位單片機(jī)高精度模擬量接口3.9 單片16位A/D轉(zhuǎn)換器AD7701及其與8031單片機(jī)的串行接口3.10 雙積分型A/D轉(zhuǎn)換器與MCS?51系列單片機(jī)接口的新方法3.11 8031單片機(jī)與AD574A/D轉(zhuǎn)換器的最簡接口3.12 8098單片機(jī)A/D轉(zhuǎn)換接口及其程序設(shè)計(jì)3.13 提高A/D轉(zhuǎn)換器分辨率的實(shí)用方案3.14 用CD4051提高8098單片機(jī)內(nèi)10位A/D轉(zhuǎn)換器分辨率的方法3.15 單片機(jī)實(shí)現(xiàn)16位高速積分式A/D轉(zhuǎn)換器3.16 434位A/D轉(zhuǎn)換器MAX133(134)的原理及應(yīng)用3.17 AD574A應(yīng)用中應(yīng)注意的問題 3.18 CC14433使用中應(yīng)注意的問題 3.19 高精度寬范圍數(shù)據(jù)采集系統(tǒng)的溫度補(bǔ)償途徑 3.20 縮短ICL7135A/D采樣程序時間的一種方法 3.21 用單片機(jī)實(shí)現(xiàn)的數(shù)字式自動增益控制 3.22 自動量程轉(zhuǎn)換電路 3.23 雙積分型A/D的自動量程切換電路 3.24 常用雙積分型A/D轉(zhuǎn)換器自換程功能的擴(kuò)展3.25 具有自動量程轉(zhuǎn)換功能的單片機(jī)A/D接口3.26 混合型數(shù)據(jù)采集器SDM857的功能與應(yīng)用3.27 高速數(shù)據(jù)采集系統(tǒng)的傳輸接口3.28 SJ2000方向鑒別位移脈寬頻率檢測多用途專用集成電路3.29 多路高速高精度F/D專用集成電路3.30 數(shù)控帶通濾波器的實(shí)現(xiàn)及其典型應(yīng)用 第四章 控制系統(tǒng)與后向通道接口技術(shù)4.1 模糊邏輯與模糊控制4.2 自動控制技術(shù)的新發(fā)展--模糊控制技術(shù)4.3 模糊控制表的確定原則4.4 變結(jié)構(gòu)模糊控制系統(tǒng)的實(shí)驗(yàn)研究4.5 新型集成模糊數(shù)據(jù)相關(guān)器NLX1124.6 功率固態(tài)繼電器的應(yīng)用4.7 雙向功率MOS固態(tài)繼電器4.8 SSR小型固態(tài)繼電器與PSSR功率參數(shù)固態(tài)繼電器4.9 JGD型多功能固態(tài)繼電器的原理和應(yīng)用4.10 光電耦合器在晶閘管觸發(fā)電路中的應(yīng)用4.11 一種廉價的12位D/A轉(zhuǎn)換器AD667及接口4.12 利用單片機(jī)構(gòu)成高精度PWM式12位D/A4.13 三相高頻PWM模塊SLE45204.14 專用集成電路TCA785及其應(yīng)用4.15 單片溫度控制器LM3911的應(yīng)用4.16 工業(yè)測控系統(tǒng)軟件設(shè)計(jì)的若干問題研究 第五章 人機(jī)對話通道接口技術(shù)5.1 廉價實(shí)用的8×8鍵盤5.2 單片機(jī)遙控鍵盤接口5.3 對8279鍵盤顯示接口的改進(jìn)5.4 用單片機(jī)8031的七根I/O線實(shí)現(xiàn)對鍵盤與顯示器的控制5.5 通用8位LED數(shù)碼管驅(qū)動電路ICM7218B5.6 利用條圖顯示驅(qū)動器LM3914組成100段LED顯示器的方法5.7 液晶顯示器的多極驅(qū)動方式5.8 點(diǎn)陣式液晶顯示屏的構(gòu)造與應(yīng)用5.9 點(diǎn)陣式液晶顯示器圖形程序設(shè)計(jì)5.10 DMF5001N點(diǎn)陣式液晶顯示器和8098單片機(jī)的接口技術(shù)5.11 8098單片機(jī)與液晶顯示控制器HD61830接口5.12 利用PL/M語言對點(diǎn)陣式液晶顯示器進(jìn)行漢字程序設(shè)計(jì)5.13 語音合成器TMS 5220的開發(fā)與應(yīng)用5.14 制作T6668語音系統(tǒng)的一些技術(shù)問題5.15 單片機(jī)、單板機(jī)在屏顯系統(tǒng)中的應(yīng)用 第六章 多機(jī)通訊網(wǎng)絡(luò)與遙控技術(shù)6.1 用雙UART構(gòu)成的可尋址遙測點(diǎn)裝置--兼談如何組成系統(tǒng)6.2 IBM?PC微機(jī)與8098單片機(jī)的多機(jī)通訊6.3 80C196單片機(jī)與IBM?PC機(jī)的串行通訊6.4 IBM?PC與MCS?51多機(jī)通訊的研究6.5 半雙工方式傳送的單片機(jī)多機(jī)通信接口電路及軟件設(shè)計(jì)6.6 單片機(jī)與IBM／PC機(jī)通訊的新型接口及編程6.7 用光耦實(shí)現(xiàn)一點(diǎn)對多點(diǎn)的總線式通訊電路6.8 用EPROM作為通訊變換器實(shí)現(xiàn)多機(jī)通訊6.9 ICL232單電源雙RS?232發(fā)送／接收器及其應(yīng)用6.10 DTMF信號發(fā)送／接收電路芯片MT8880及應(yīng)用6.11 通用紅外線遙控系統(tǒng)6.12 8031單片機(jī)在遙控解碼方面的應(yīng)用 第七章 電源、電壓變換及電源監(jiān)視7.1 用于微機(jī)控制系統(tǒng)的高可靠性供電方法7.2 80C31單片機(jī)防掉電和抗干擾電源的設(shè)計(jì)7.3 可編程基準(zhǔn)電壓源7.4 電源電壓監(jiān)視器件M81953B7.5 檢出電壓可任意設(shè)定的電源電壓監(jiān)測器7.6 低壓降(LDO?Low Drop?Out)穩(wěn)壓器7.7 LM317三端可調(diào)穩(wěn)壓器應(yīng)用二例7.8 三端集成穩(wěn)壓器的擴(kuò)流應(yīng)用 第八章 可靠性與抗干擾技術(shù)8.1 數(shù)字電路的可靠性設(shè)計(jì)實(shí)踐與體會8.2 單片機(jī)容錯系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)8.3 微機(jī)測控系統(tǒng)的接地、屏蔽和電源供給8.4 ATE的抗干擾及接地技術(shù)8.5 微處理器監(jiān)控電路MAX690A／MAX692A8.6 電測儀表電路的實(shí)用抗干擾技術(shù)8.7 工業(yè)鍍鋅電阻爐溫度控制機(jī)的抗干擾措施8.8 一種簡單的抗干擾控制算法 ? 第九章 綜合應(yīng)用實(shí)例9.1 蔬菜灌溉相關(guān)參數(shù)的自動檢測9.2 MH?214溶解氧測定儀9.3 COP840C單片機(jī)在液晶線控空調(diào)電腦控制器中的應(yīng)用9.4 單片機(jī)在電飯煲中的應(yīng)用9.5 用PIC單片機(jī)制作電扇自然風(fēng)發(fā)生器 第十章 文章摘要 一、 單片機(jī)的綜合應(yīng)用技術(shù)1.1 摩托羅拉8位單片機(jī)的應(yīng)用和開發(fā)1.2 NS公司的COP800系列8位單片機(jī)1.3 M68HC11與MCS?51單片機(jī)功能比較1.4 8098單片機(jī)8M存儲空間的擴(kuò)展技術(shù)1.5 80C196KC單片機(jī)的外部設(shè)備事件服務(wù)器1.6 一種多進(jìn)程實(shí)時控制系統(tǒng)的軟件設(shè)計(jì)1.7 開發(fā)單片機(jī)的結(jié)構(gòu)化高級語言PL/M?961.8 應(yīng)用軟件開發(fā)中的菜單接口技術(shù)1.9 單片機(jī)用戶系統(tǒng)EPROM中用戶程序的剖析方法1.10 BJS?98硬件、軟件典型實(shí)驗(yàn)1.11 FORTH語言系統(tǒng)的開發(fā)應(yīng)用1.12 在Transputer系統(tǒng)上用并行C語言編程的特點(diǎn)1.13 一種軟件擴(kuò)展8031內(nèi)部計(jì)數(shù)器簡易方法1.14 MCS 51系列單片機(jī)功能測試方法研究1.15 用CD 4520B設(shè)計(jì)對稱輸出分頻器的方法1.16 多路模擬開關(guān)CC 4051功能擴(kuò)展方法1.17 條形碼技術(shù)及其應(yīng)用系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)? 二、 新一代存儲器及邏輯器件2.1 一種多功能存儲器M6M 72561J2.2 串行E2PROM及其在智能儀器中的應(yīng)用2.3 新型高性能的AT24C系列串行E2PROM2.4 2K～512K EPROM編程卡2.5 電子盤的設(shè)計(jì)與實(shí)現(xiàn)2.6 NS GAL器件的封裝標(biāo)簽、類型代碼和編程結(jié)構(gòu)間的關(guān)系 三、數(shù)據(jù)采集、前向通道與測量技術(shù)3.1 儀器用精密運(yùn)放CA3193的應(yīng)用3.2 集成電壓?電流轉(zhuǎn)換器XTR100的應(yīng)用3.3 瞬時浮點(diǎn)放大器及應(yīng)用3.4 隔離放大器289Ｊ及其應(yīng)用3.5 ICS?300系列新型加速度傳感器3.6 一種實(shí)用的壓力傳感器接口電路3.7 霍爾傳感器的應(yīng)用3.8 一種對多個傳感器進(jìn)行調(diào)理的方法3.9 兩線制壓力變送器3.10 小信號雙線變送器XTR101的使用3.11 兩線長距離頻率傳輸壓力變送器的設(shè)計(jì)3.12 測溫元件AD590及其應(yīng)用3.13 熱敏電阻應(yīng)用動態(tài)3.14 一種組合式A/D、D/A轉(zhuǎn)換器的設(shè)計(jì)3.15 一種復(fù)合式A/D轉(zhuǎn)換器3.16 TLC549串行輸出ADC及其應(yīng)用3.17 提高A/D轉(zhuǎn)換精度的方法--雙通道A/D轉(zhuǎn)換3.18 模數(shù)轉(zhuǎn)換器ICL7135的0～3.9999Ｖ顯示3.19 微型光耦合器3.20 一種高精度的分壓器電路3.21 利用單片機(jī)軟件作熱電偶非線性補(bǔ)償3.22 三線制RTD測量電路及應(yīng)用中要注意的問題3.23 微伏信號高精度檢測中極易被忽略的問題3.24 寬范圍等分辨率精密測量法3.25 傳感器在線校準(zhǔn)系統(tǒng)3.26 一種高精度的熱敏電阻測溫電路3.27 超聲波專用集成電路LM1812的原理與應(yīng)用3.28 旋轉(zhuǎn)變壓器數(shù)字化檢測及其在8098單片機(jī)控制伺服系統(tǒng)中的應(yīng)用3.29 單片集成兩端式感溫電流源AD590在溫度測控系統(tǒng)中的應(yīng)用?3.30 數(shù)字示波器和單片機(jī)構(gòu)成的自動測試系統(tǒng)3.31 霍爾效應(yīng)式功率測量研究 四、 控制系統(tǒng)與后向通道接口技術(shù)4.1 模糊邏輯與模糊控制(實(shí)用模糊控制講座之一)4.2 紅綠燈模糊控制器(實(shí)用模糊控制講座之二)4.3 國外模糊技術(shù)新產(chǎn)品4.4 交流串級調(diào)速雙環(huán)模糊PI單片機(jī)控制系統(tǒng)4.5 時序控制專用集成電路LT156及其應(yīng)用4.6 電池充電控制集成電路4.7 雙向晶閘管4.8 雙向可控硅的自觸發(fā)電路及其應(yīng)用4.9 微處理器晶閘管頻率自適應(yīng)觸發(fā)器4.10 F18系列晶閘管模塊介紹4.11 集成電路UAA4002的原理及應(yīng)用4.12 IGBT及其驅(qū)動電路4.13 TWH8751應(yīng)用集錦4.14 結(jié)構(gòu)可變式計(jì)算機(jī)工業(yè)控制系統(tǒng)設(shè)計(jì)4.15 單片機(jī)控制的音響編輯器 五、 人機(jī)對話通道接口技術(shù)5.1 5×7點(diǎn)陣LED智能顯示器的應(yīng)用5.2 基于8031串行口的LED電子廣告牌5.3 點(diǎn)陣液晶顯示控制器與計(jì)算機(jī)的接口技術(shù)5.4 單片機(jī)控制可編程液晶顯示系統(tǒng)5.5 大規(guī)模語言集成電路應(yīng)用綜述5.6 最新可編程語言集成電路MSSIO61的應(yīng)用5.7 用PC打印機(jī)接口擴(kuò)展并行接口 六、 多機(jī)系統(tǒng)、網(wǎng)絡(luò)與遙控技術(shù)6.1 用8098單片機(jī)構(gòu)成的分布式測溫系統(tǒng)6.2 平衡接口EIA?422和EIA485設(shè)計(jì)指南6.3 I2C BUS及其系統(tǒng)設(shè)計(jì)6.4 摩托羅拉可尋址異步接受／發(fā)送器6.5 用5V供電的RS232C接口芯片6.6 四通道紅外遙控器6.7 TA7333P和TA7657P的功能及應(yīng)用 七、 電源、電壓變換及電源監(jiān)視7.1 單片機(jī)控制的可控硅三相電源調(diào)壓穩(wěn)壓技術(shù)7.2 集成開關(guān)電源控制器MC34063的原理及應(yīng)用7.3 LM299精密基準(zhǔn)電壓源7.4 集成過壓保護(hù)器的應(yīng)用7.5 3Ｖ供電的革命7.6 HMOS微機(jī)的超低電源電壓運(yùn)行技術(shù) 八、 可靠性與抗干擾設(shè)計(jì)8.1 淺談艦船電磁兼容與可靠性 九、 綜合應(yīng)用實(shí)例9.1 8098單片機(jī)交流電氣參數(shù)測試系統(tǒng)的設(shè)計(jì)和應(yīng)用9.2 主軸回轉(zhuǎn)誤差補(bǔ)償控制器9.3 FWK?A型大功率發(fā)射臺微機(jī)控制系統(tǒng)9.4 高性能壓控振蕩型精密波形發(fā)生器ＩCＬ8038及應(yīng)用9.5 單片機(jī)COP 840C在洗碗機(jī)中的應(yīng)用
標(biāo)簽： 單片機(jī) 應(yīng)用技術(shù)
上傳時間： 2013-11-10
上傳用戶：lijinchuan
附件有51單片機(jī)加上sl811讀寫U盤的源程序和原理圖 /*--------------------------------------------------------------------------AT89X52.H Header file for the low voltage Flash Atmel AT89C52 and AT89LV52.Copyright (c) 1995-1996 Keil Software, Inc. All rights reserved.--------------------------------------------------------------------------*/ #ifndef AT89X52_HEADER_FILE#define AT89X52_HEADER_FILE 1 /*------------------------------------------------Byte Registers------------------------------------------------*/sfr P0 = 0x80;sfr SP = 0x81;sfr DPL = 0x82;sfr DPH = 0x83;sfr PCON = 0x87;sfr TCON = 0x88;sfr TMOD = 0x89;sfr TL0 = 0x8A;sfr TL1 = 0x8B;sfr TH0 = 0x8C;sfr TH1 = 0x8D;sfr P1 = 0x90;sfr SCON = 0x98;sfr SBUF = 0x99;sfr P2 = 0xA0;sfr IE = 0xA8;sfr P3 = 0xB0;sfr IP = 0xB8;sfr T2CON = 0xC8;sfr T2MOD = 0xC9;sfr RCAP2L = 0xCA;sfr RCAP2H = 0xCB;sfr TL2 = 0xCC;sfr TH2 = 0xCD;sfr PSW = 0xD0;sfr ACC = 0xE0;sfr B = 0xF0;
標(biāo)簽： 51單片機(jī) 讀寫 源程序 原理圖
上傳時間： 2014-01-05
上傳用戶：lnnn30
摘 要:用一種新的思路和方法,先計(jì)算低通、再計(jì)算高通濾波器的有關(guān)參數(shù),然后組合成帶通濾波器.關(guān)鍵詞:濾波器;參數(shù);新思路中圖分類號: TN713. 5 文獻(xiàn)識別碼:B 文章編號:1008 - 1666 (1999) 04 - 0089 - 03A New Consideration of the Band Filter’s CalculationGuo Wencheng( S hao Yang B usiness and Technology school , S haoyang , Hunan ,422000 )Abstract :This essay deals with a new method of calculating the band filters - first calculatingthe relevant parameters of low - pass filters ,then calculating the ones of high - pass filters.Key words :filter ; parameters ;new considercation八十年代后,信息產(chǎn)業(yè)得到了迅猛發(fā)展. 帶通濾波器在微波通信、廣播電視和精密儀器設(shè)備中得到了廣泛應(yīng)用. 帶通濾波器性能的優(yōu)劣,對提高接收機(jī)信噪比,防止鄰近信道干擾,提高設(shè)備的技術(shù)指標(biāo),有著十分重要的意義.我在長期的教學(xué)實(shí)踐中,用切比雪夫型方法設(shè)計(jì)、計(jì)算出寬帶濾波器集中參數(shù)元件的數(shù)據(jù). 該濾波器可運(yùn)用在檢測微波頻率的儀器和其他設(shè)備中. 再將其思路和計(jì)算方法介紹給大家,供參考.
標(biāo)簽： 帶通濾波器設(shè)計(jì) 計(jì)算
上傳時間： 2014-12-28
上傳用戶：Yukiseop
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