當微處理器的I/O端口不夠使用,可用IC4094來擴充.
上傳時間： 2016-02-29
上傳用戶：myworkpost
計算機并口轉3路串行DA的DLL源碼及電路,芯片MAX541/MAX5541,可以免費申請,8路I/O輸出,5路輸入,并口的簡單極限應用.經使用各項性能不錯,就是DA抗干擾較差,沒有較大的電磁干擾運行穩定.電路初步設計,有很多問題,請自行修改,切勿商用!在此特感謝李高的技術支持
上傳時間： 2016-03-07
上傳用戶：zhuimenghuadie
Linux設備驅動編程之內存與I/O操作
上傳時間： 2013-12-24
上傳用戶：wendy15
用51單片機實現數字鐘 利用數碼管、I/O口實現數字鐘的計數功能，并顯示在數碼管上
上傳時間： 2013-12-24
上傳用戶：franktu
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.
標簽： bottleneck developed the concept
上傳時間： 2014-12-03
上傳用戶：ikemada
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video. Hardware reference
標簽： bottleneck developed the concept
上傳時間： 2016-03-18
上傳用戶：極客
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video. User Manual
標簽： bottleneck developed the concept
上傳時間： 2014-01-15
上傳用戶：努力努力再努力
測試分析報告I/O設備管理 測試分析報告
上傳時間： 2016-03-21
上傳用戶：aa17807091
關於USB鼠標，使用PDIUSBD12開發USB鼠標。 內有源碼，C語言開發。
標簽： USB
上傳時間： 2016-03-23
上傳用戶：daoxiang126
#include <reg51.h> /*-------------------------------------------- 調用方式：自行I/O 口定義﹫2001/05/12 函數說明：私有函數，各接口定義 --------------------------------------------*/ sbit HD7279_CS=P1^4 // HD7279_CS--P1.4 sbit HD7279_CLK=P1^5 // HD7279_CLK-- P1.5 sbit HD7279_DATA=P1^6 // HD7279_DATA-- P1.2 sbit HD7279_KEY =P1^7 // HD7279_KEY-- P1.3 /*-------------------------------------------- 調用方式： HD7279A 各指令定義﹫2001/05/12 函數說明：私有函數，接口定義 --------------------------------------------* /#define HD7279_RESET 0xa4 //復位 #define HD7279_TEST 0xbf //測試 #define HD7279_RLC 0xa3 //循環左移 #define HD7279_RRC 0xa2 //循環右移 #define HD7279_RL 0xa1 //左移 #define HD7279_RR 0xa0 //右移 #define HD7279_DECODE0 0x80 //譯碼方式0 #define HD7279_DECODE1 0xc8 //譯碼方式1
上傳時間： 2013-12-31
上傳用戶：三人用菜
