I have uploaded a Matlab program for simulation of CDMA. You can use it but must acknowledge the author
標(biāo)簽： acknowledge simulation uploaded program
上傳時(shí)間： 2014-01-02
上傳用戶(hù)：bruce5996
The 87LPC76X Microcontroller combines in a small package thebenefits of a high-performance microcontroller with on-boardhardware supporting the Inter-Integrated Circuit (I2C) bus interface.The 87LPC76X can be programmed both as an I2C bus master, aslave, or both. An overview of the I2C bus and description of the bussupport hardware in the 87LPC76X microcontrollers appears inapplication note AN464, Using the 87LPC76X Microcontroller as anI2C Bus Master. That application note includes a programmingexample, demonstrating a bus-master code. Here we show anexample of programming the microcontroller as an I2C slave.The code listing demonstrates communications routines for the87LPC76X as a slave on the I2C bus. It compliments the program inAN464 which demonstrates the 87LPC76X as an I2C bus master.One may demonstrate two 87LPC76X devices communicating witheach other on the I2C bus, using the AN464 code in one, and theprogram presented here in the other. The examples presented hereand in AN464 allow the 87LPC76X to be either a master or a slave,but not both. Switching between master and slave roles in amultimaster environment is described in application note AN435.The software for a slave on the bus is relatively simple, as theprocessor plays a relatively passive role. It does not initiate bustransfers on its own, but responds to a master initiating thecommunications. This is true whether the slave receives or transmitsdata—transmission takes place only as a response to a busmaster’s request. The slave does not have to worry about arbitrationor about devices which do not acknowledge their address. As theslave is not supposed to take control of the bus, we do not demandit to resolve bus exceptions or “hangups”. If the bus becomesinactive the processor simply withdraws, not interfering with themaster (or masters) on the bus which should (hopefully) try toresolve the situation.
標(biāo)簽： routines slave I2C 87L
上傳時(shí)間： 2013-11-19
上傳用戶(hù)：shirleyYim
基于UDP實(shí)現(xiàn)E-Mail傳輸 工作過(guò)程描述： 客戶(hù)端描述： 1． Client（以下簡(jiǎn)稱(chēng)C端）端將郵件以規(guī)定的大小封裝為符合要求的UDP包。 2． 將封裝好的UDP包發(fā)出，并等待Server(以下簡(jiǎn)稱(chēng)S端)端收到相應(yīng)的UDP包后返回的回應(yīng)acknowledge(以下簡(jiǎn)稱(chēng)為ACK)。若收到的為Positive ACK,則繼續(xù)發(fā)包；若收到的為Negtive ACK,則將應(yīng)發(fā)的包重發(fā)。 3． 直到C端將所有要發(fā)的包都發(fā)完，并都已經(jīng)收到S端的回應(yīng)，最后發(fā)一個(gè)End包，直接關(guān)閉此進(jìn)程。 服務(wù)器端描述： 1． S端啟動(dòng)服務(wù)進(jìn)程，并監(jiān)聽(tīng)相應(yīng)端口。 2． 若收到C端發(fā)出的有關(guān)請(qǐng)求，按如下情況給出相應(yīng)的反映： a． 將收到的包進(jìn)行檢測(cè)，若收到的包有錯(cuò)則拋棄（discard），并發(fā)給C端一個(gè)negtive ACK。 b． 將收到的包進(jìn)行檢測(cè)，若收到的包正常，則將此包進(jìn)行解包，將內(nèi)容輸出至一臨時(shí)文件；并發(fā)給C端一個(gè)positive ACK。 3．依次收到來(lái)自C斷的包，直到收到end為止，并關(guān)閉此進(jìn)程，轉(zhuǎn)回監(jiān)聽(tīng)狀態(tài)。
標(biāo)簽： UDP E-Mail Client 封裝
上傳時(shí)間： 2014-12-08
上傳用戶(hù)：sxdtlqqjl
All the tool for build a network able to reconize any shapes. Very complete, a good base for anything you want to do whith acknowledge, and neural network
標(biāo)簽： for complete reconize network
上傳時(shí)間： 2017-03-09
上傳用戶(hù)：qq21508895
Radio frequency identification (RFID) is gaining in popularity, especially as we find ourselves in this communications age and headed towards a ubiquitous computing world. Automatic identification systems become an important aspect not just in today’s technology but also as part of our daily life. We need RFID in our cars, transportation systems, access points, and even simple transactions; we also acknowledge the need for RFID in our logistics systems, healthcare, and tracking and locating applications.
標(biāo)簽： RFID-Enabled Appications Design Sensor and
上傳時(shí)間： 2020-06-08
上傳用戶(hù)：shancjb
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