A complete set of bit banged, software driven I2C routines I created for any PIC device - and they work!! These functions are single Master only functions, and are ideal for communicating with things like EEPROMs, LCD Drivers, ADC Converters etc
標(biāo)簽: complete routines software created
上傳時(shí)間: 2013-12-17
上傳用戶:王小奇
一般我們要根據(jù)數(shù)據(jù)庫的紀(jì)錄變化時(shí),進(jìn)行某種操作。我們習(xí)慣的操作方式是在程序中不停的查詢表,判斷是否有新紀(jì)錄。這樣耗費(fèi)的資源就很高,如何提高這種效率,我想在表中創(chuàng)建觸發(fā)器,在觸發(fā)器中調(diào)用外部動(dòng)態(tài)連接庫通過消息或事件通知應(yīng)用程序就可實(shí)現(xiàn)。而Master的存儲(chǔ)過程中最好能調(diào)用外部的動(dòng)態(tài)連接庫,我們?cè)谟|發(fā)器中調(diào)用Master的存儲(chǔ)過程即可。本文提供了動(dòng)態(tài)庫與存儲(chǔ)過程的具體實(shí)現(xiàn)
標(biāo)簽: 數(shù)據(jù)庫 變化
上傳時(shí)間: 2015-09-28
上傳用戶:rocketrevenge
可以支持連續(xù)讀寫的i2cslave源碼,很適合作為Master的testbench來用
上傳時(shí)間: 2014-01-18
上傳用戶:dapangxie
本程序是在網(wǎng)友vagrant的升級(jí)程序上增加了SQL數(shù)據(jù)庫的更新升級(jí)功能,系統(tǒng)中采用了ACCES來存儲(chǔ)數(shù)據(jù)更新的指令,從而達(dá)到逐步執(zhí)行SQL代碼的功能,因?yàn)樵赟QL中要?jiǎng)?chuàng)建表、存儲(chǔ)過程、視圖等對(duì)象時(shí),需要?jiǎng)h除原有老的對(duì)象,但是SQL不支持將這些指令存放在一起,從而導(dǎo)致出錯(cuò)。所以用ACCES來存儲(chǔ)數(shù)據(jù)了 例中將在Master中創(chuàng)建p_killspid,該程序過程是用來恢復(fù)與備份數(shù)據(jù)的一部分。 MENTOROUSER.INI為數(shù)據(jù)服務(wù)地址,曾經(jīng)有網(wǎng)友問過我如何做服務(wù)登錄的系統(tǒng),此文件是個(gè)關(guān)鍵,具體的連接請(qǐng)參考代碼 SQLTEXT.MDB為數(shù)據(jù)庫更新用的文件,請(qǐng)自行修改記錄,但是記錄先后順序一定要根據(jù)指令的先后順序來添加。 mentoro.htm為存放在網(wǎng)站上的文件,具體內(nèi)容自已改吧。(您也可以用INI文件) CHIS.INI為更新配置文件
標(biāo)簽: vagrant SQL 程序 數(shù)據(jù)庫
上傳時(shí)間: 2015-11-13
上傳用戶:yxgi5
jsf做的增刪改的例子,比較短小,代碼不多,但展現(xiàn)了做Master-detail時(shí)的思路,可以參考
標(biāo)簽: jsf
上傳時(shí)間: 2013-12-18
上傳用戶:yepeng139
VHDL實(shí)現(xiàn)SPI功能源代碼 -- The SPI bus is a 3 wire bus that in effect links a serial shift -- register between the "Master" and the "slave". Typically both the -- Master and slave have an 8 bit shift register so the combined -- register is 16 bits. When an SPI transfer takes place, the Master and -- slave shift their shift registers 8 bits and thus exchange their 8 -- bit register values.
標(biāo)簽: SPI bus register effect
上傳時(shí)間: 2013-12-23
上傳用戶:lx9076
如文件名,在LPC2138上的I2C的Master發(fā)送接受測(cè)試程序。里面的readme.txt(英)有詳細(xì)說明。
標(biāo)簽:
上傳時(shí)間: 2015-12-01
上傳用戶:eclipse
Avalon Interface Specification,The Avalon interface specification is designed to accommodate peripheral development for the system-on-a-programmable-chip (SOPC) environment. The specification provides peripheral designers with a basis for describing the address-based read/write interface found on Master and slave peripherals, such as microprocessors, memory, UART, timer, etc.
標(biāo)簽: Avalon Specification specification accommodate
上傳時(shí)間: 2014-03-06
上傳用戶:pompey
An AHB system is made of Masters slaves and interconnections. A general approach to include all possible "muxed" implementation of multi layered AHB systems and arbitrated AHB ones can be thought as an acyclic graph where every source node is a Master, every destination node is a slave and every internal node is an arbiter there must be one and only one arc exiting a Master and one or more entering a slave (single slave verus multi-slave or arbitrated slave) an arbiter can have as many input and output connections as needed. A bridge is a special node that collapses one or more slave nodes and a Master node in a new "complex" node.
標(biāo)簽: interconnections approach general include
上傳時(shí)間: 2015-12-12
上傳用戶:lyy1234
一般使用PC Based Controller 都是當(dāng)作現(xiàn)場(chǎng)設(shè)備的一種,也就是要接受 主系統(tǒng)的命令,做一些操作控制。以Modbus 來看屬于Slave 的角色,隨 時(shí)等待接收Modbus Master 的Query Message,然后依據(jù)內(nèi)容做控制,最后 將控制結(jié)果以Response Message 回傳。本章將以ICP 7524 及ICP 7188E5 等 兩種設(shè)備分別設(shè)計(jì)Modbus RTU、ASCII 及Modbus/TCP 的Slave 應(yīng)用程序, 讀者可以將此兩種程序的架構(gòu)再延伸設(shè)計(jì)至各種實(shí)際應(yīng)用程序。
標(biāo)簽: Controller Based 現(xiàn)場(chǎng)設(shè)備
上傳時(shí)間: 2015-12-16
上傳用戶:nanxia
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