*** *** *** *** *** *** ***** ** Two wire/I2C Bus READ/WRITE Sample Routines of Microchip s ** 24Cxx / 85Cxx serial CMOS EEPROM interfacing to a ** PIC16C54 8-bit CMOS single chip microcomputer ** Revsied Version 2.0 (4/2/92). ** ** Part use = PIC16C54-XT/JW ** Note: 1) All timings are based on a reference crystal frequency of 2MHz ** which is equivalent to an instruction cycle time of 2 usec. ** 2) Address and literal values are read in octal unless otherwise ** specified.
標(biāo)簽： Microchip Routines Sample WRITE
上傳時(shí)間： 2013-12-27
上傳用戶(hù)：ljmwh2000
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin + CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval. is restarted. The ACQMOD bit in the input control byte offer
標(biāo)簽： configures the selects channel
上傳時(shí)間： 2013-12-09
上傳用戶(hù)：
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin + CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval. is restarted. The ACQMOD bit in the input control byte offer
標(biāo)簽： configures the selects channel
上傳時(shí)間： 2016-12-24
上傳用戶(hù)：朗朗乾坤
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin is restarted. The ACQMOD bit in the input control byte offer+ CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval.
標(biāo)簽： configures the selects channel
上傳時(shí)間： 2016-12-24
上傳用戶(hù)：yzhl1988
MAX1142是一款高性能的模入芯片，采集范圍14-bit，支持SPI接口。 提供內(nèi)部時(shí)鐘和外部時(shí)鐘采集方式。
上傳時(shí)間： 2016-12-31
上傳用戶(hù)：1101055045
Perl and XML XML is a text-based markup language that has taken the programming world by storm. More powerful than HTML yet less demanding than SGML, XML has proven itself to be flexible and resilient. XML is the perfect tool for formatting documents with even the smallest bit of complexity, from Web pages to legal contracts to books. However, XML has also proven itself to be indispensable for organizing and conveying other sorts of data as well, thus its central role in web services like SOAP and XML-RPC. As the Perl programming language was tailor-
標(biāo)簽： programming text-based XML language
上傳時(shí)間： 2014-01-07
上傳用戶(hù)：jichenxi0730
Process a binary data stream using a communication system that consists of a baseband modulator, channel, and demodulator. Compute the system s bit error rate (BER). Also, display the transmitted and received signals in a scatter plot.
標(biāo)簽： communication modulator baseband consists
上傳時(shí)間： 2017-01-08
上傳用戶(hù)：ardager
8單徑瑞利信道中的四發(fā)四收V-BLAST： (1) 請(qǐng)?jiān)O(shè)計(jì)一種具體的導(dǎo)引輔助的信道估計(jì)方法，用Simulink進(jìn)行仿真，測(cè)量16QPSK調(diào)制時(shí)的誤碼率性能。畫(huà)出比特信噪比與信道估計(jì)均方誤差的關(guān)系曲線，畫(huà)出比特信噪比與誤碼率的關(guān)系曲線。 (2) 計(jì)算所設(shè)計(jì)方案的頻譜效率是多少，單位為bit/Hz/s。
標(biāo)簽： V-BLAST 信道 輔助 信道估計(jì)
上傳時(shí)間： 2017-01-25
上傳用戶(hù)：ainimao
62256在單片機(jī)上的應(yīng)用,C語(yǔ)言源碼,Keil uVision3工程文件,附原理圖及說(shuō)明學(xué)習(xí)文檔 62256簡(jiǎn)介： 62系列是最常用的單片機(jī)系統(tǒng)擴(kuò)展RAM元器件，其類(lèi)型有6216、6232、6264、62128、62256或62512等多種，62后面的數(shù)字表示此元器件中可以存儲(chǔ)的位(單位：千bit)，我們通常的說(shuō)法是將此值除以8，比如62256將256除以8，我們一般稱(chēng)之為32K的RAM。 如果學(xué)習(xí)過(guò)二進(jìn)制就可以知道，區(qū)分兩個(gè)字節(jié)需要一根地址線就可以：0或者1；而區(qū)分四個(gè)字節(jié)需要2根地址線；區(qū)分八個(gè)字節(jié)需要三根地址線…..以此類(lèi)推，我們可以計(jì)算出要區(qū)分32K的RAM區(qū)，需要15根地址線，也就是器件上面的A0-A14管腳用于確定唯一的一個(gè)字節(jié)內(nèi)容。 我們現(xiàn)在學(xué)習(xí)的51單片機(jī)是8位的，所以必須用兩個(gè)IO口來(lái)聯(lián)接這個(gè)RAM器件，通常我們用P0（低字節(jié)）和P2（高字節(jié)）兩個(gè)端口來(lái)確定此器件的地址，而P0口是51單片機(jī)標(biāo)準(zhǔn)的總線口，是地址線和數(shù)據(jù)線復(fù)用的，所以與62256聯(lián)接時(shí)需要加一片鎖存器來(lái)鎖存地址。即先將地址送到鎖存器（通常用74HC373）中，然后P0口空閑下來(lái)后開(kāi)始接收或發(fā)送數(shù)據(jù)至62256。
標(biāo)簽： 62256 uVision3 Keil RAM
上傳時(shí)間： 2017-01-27
上傳用戶(hù)：asdkin
PC與單片機(jī)雙向通訊智能溫控程序 #include <AT89X51.H> #include <intrins.h> #define Key_UP P1_0 #define Key_DOWN P1_1 #define Key_SET P1_2 #define RelayOutPort P2_0 #define LEDPort P0 #define DELPort P2_1 #define LEDTwoC P3_6 #define LEDThreeC P3_7 #define TMPort P2_7 #define INBUF_LEN 5 //數(shù)據(jù)長(zhǎng)度 unsigned char inbuf1[INBUF_LEN]={ 0 , 0 , 0 , 0 , 0 } //發(fā)送緩沖區(qū) unsigned char inbuf2[50] //接收緩沖區(qū) unsigned char count3 void init_serialcomm( void ) { SCON = 0x50 //SCON: serail mode 1, 8-bit UART, enable ucvr TMOD |= 0x20 //TMOD: timer 1, mode 2, 8-bit reload PCON |= 0x80 //SMOD=1 TH1 = 0xFA //Baud:4800 fosc=11.0592MHz IE |= 0x90 //Enable Serial Interrupt TR1 = 1 // timer 1 run } //向串口發(fā)送一個(gè)字符 void send_char_com( unsigned char ch) { SBUF=ch while (TI== 0 ) TI= 0
標(biāo)簽： include intrins define Key_UP
上傳時(shí)間： 2014-11-29
上傳用戶(hù)：風(fēng)之驕子
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