USB轉TTL原理圖 PL2303
上傳時間： 2013-10-31
上傳用戶：13162218709
USB2I2C是一個USB總線的轉I2C總線的專用接口芯片。通過USB2I2C芯片用戶可以非常方便地實現PC機USB總線和下位機端各種I2C/IIC設備（如，ATMEL公司的AT24CXX系列EEPROM；I2C總線8位并行IO口擴展芯片PCF8574/JLC1562；I2C接口實時時鐘芯片DS1307/PCF8563/SD2000D/M41T80/ME901/ISL1208/；I2C數據采集ADC芯片MCP3221（12bitADC）/ADS1100（16bitADC）/ADS1112（16bitADC）/MAX1238（12bitADC）/MAX1239（12bitADC）；I2C接口數模轉換DAC芯片DAC5574（8bitDAC）/DAC6573（10bitDAC）/DAC8571 （16bitDAC）/；I2C接口溫度傳感器TMP101/TMP275/DS1621/MAX6625，等）之間的通信。 USB2I2C芯片上位機PC端提供簡單易用的USBIOX.DLL動態庫調用，可以方便地被VB，VC，Delphi等上位機開發工具調用
上傳時間： 2014-12-26
上傳用戶：Amygdala
USB接口定義
上傳時間： 2014-12-26
上傳用戶：歸海惜雪
PC與單片機數據采集系統的USB通訊設計論文
上傳時間： 2013-10-30
上傳用戶：hanli8870
固件無限升級的編程器：隨著TI 公司MSP430 系列單片機新型號的不斷推出，我 們對編程器的功能也隨之更新到位，凡是夠買過本產品的老顧客可以使用本產品最新 軟件只需點擊升級固件，就可以獲得最新的功能了，正所謂一機在手后顧無憂。原串 口型編程器，老客戶今后同樣可以使用我們的最新軟件獲取最新的功能。不拋棄，不 放棄，有了您的支持，我們將做得更好。 PROG430 編程器（USB型）是針對美國德州儀器（TI）公司的MSP430系列Flash 型單片機的專 業編程器，由北京博通電子打造，是原有串口型編程器的升級產品。功能強大，操作方便，界面友 好，支持固件升級功能，只需下載最新的上位機軟件即可更新編程器固件。
上傳時間： 2013-11-09
上傳用戶：wsf950131
AVR32801: UC3A3 Schematic Checklist Features • Power circuit • Reset circuit • USB connection • External bus interface • ABDAC sound DAC interface • JTAG and Nexus debug ports • Clocks and crystal oscillators • MMC, SD-card, SDHC, SDIO and CE-ATA interface 1 Introduction A good hardware design comes from a proper schematic. Since UC3A3 devices have a fair number of pins and functions, the schematic for these devices can be large and quite complex. This application note describes a common checklist which should be used when starting and reviewing the schematics for a UC3A3 design.
標簽： Schematic 32801 UC3A3 Chec
上傳時間： 2014-12-26
上傳用戶：DXM35
LPC1300片上USB驅動應用與實例
上傳時間： 2014-01-22
上傳用戶：box2000
以太網和CAN總線應用廣泛，但由于其通信協議不同，兩種總線器件間無法進行數據通信，因此，設計了基于CP2200與C8051F040的以太網總線與CAN總線接口轉換電路，并給出部分相關硬件電路與軟件設計分析。在保證數據完整和協議可靠的前提下，通過握手協議和簡化的以太網協議，不僅實現了以太網數據與CAN數據的轉發，同時還順利的解決了以太網的高速性與CAN的低速率沖突，以及兩者數據包之間的大小不同的矛盾。 Abstract: In the development of actual application， Ethernet and CAN bus are used very extensively. Owing to its various communication protocols， the communicating between two kinds of bus device can’t be carried out. Therefore， in order to solve this problem， the Ethernet-CAN bus interface circuit based on CP2200 and C8051F040 was designed in this paper， and part of the related hardware circuit and software design analysis were given. On the condition of data’s integrity and protocols’reliability， through the handshaking protocols and the simplified the Ethernet protocol， not only the data switching between CAN and Ethernet was realized， but also the differ in velocity and packet size was solved.
上傳時間： 2013-10-15
上傳用戶：Ants
介紹一種基于C8051單片機的動態心電監護系統。該系統由兩部分組成：以C8051F320單片機為核心的數據采集裝置和以PC機為平臺的分析處理系統。硬件電路功耗低，由單片機自帶的USB接口將數據傳送給PC機。軟件平臺采用LabVIEW可視化虛擬儀器系統開發平臺，將傳統儀器的功能模塊集成到計算機中，用戶可通過修改虛擬儀器的程序改變其功能。采用USB接口實時傳輸心電數據，并將數據采集模塊設計為計算機外設，使該系統高速快捷、小巧便攜。 Abstract: In this design，a low-cost ECG electrocardiogram monitoring system is introduced，which consists of two parts:data acquisition device based on C8051F320and PC terminal as the analysis and processing system.The system is low-power consumption，the data is transmitted to the PC terminal by USB interface of the C8051F320.By using the visible virtual instrument system developing platform LabVIEW，the traditional instruments function modules are integrated into the computer，so the user can modify virtual instrument software to change its function to meet their needs.Using USB in-terface to realize real-time ECG data transmission，in addition，ECG data acquisition module is designed as the computer peripheral，which makes the syetem high-speed and portable.
上傳時間： 2013-11-13
上傳用戶：zhangzhenyu
介紹一種基于CAN總線的牽引變電站自動化系統通訊規約的設計，CAN通訊規約采用標準幀，報文采用主動發送和發送查詢兩種處理形式。該設計在城市輕軌與地鐵牽引變電站中的應用表明：可實現間隔層和通訊處理層的數據快速、可靠的交換，提高牽引變電站的安全性和穩定性 。 Abstract: This paper firstly presents a kind of design dealing with communicational protocol to the traction substation automation system based on CAN bus,and then comes up with the ideas that all frames of CAN communicational protocol should adopt the standard frame,and that messages be processed by two ways:sending initiatively and sending quiries.Subway and light rail application shows that the use of the CAN bus is possible to exchange data quickly and reliably between the layers of the middle and the communicational processing,hence to improve the safety and stability of traction substations.
上傳時間： 2013-11-07
上傳用戶：bs2005
