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
為解決當前計算機串行通訊接口只有USB,難以滿足舊型號設備或某些單片機要求RS232通訊的問題,設計出兩款RS232/USB電路。采用CH341A與MAX223集成電路芯片構建標準9線RS232/USB通用接口轉換器,無需編程。采用CH341A與PIC16F877A構建單片機與計算機之間的USB通訊電路,軟件遵循RS232通訊協議,硬件進行電平轉換。實際使用表明,這兩款產品與計算機端Windows 操作系統下的串口應用程序完全兼容,且通訊過程中無握手失敗現象。 Abstract: To solve the problem that current computer serial communication only with USB interface can not satisfy with the old type equipments or MCU to communicate with RS232, two kinds of RS232/USB circuit were designed.CH341A and MAX223 integrated circuit chips were used to create a standard 9-line RS232/USB universal interface convertor without programme. CH341A and PIC16F877A chips were adopted to build the USB communication circuit between computers and MCU. The software follows RS232 communication protocol, and the hardware converts electrical levels. Actual practices indicate that the two manufactures are compatible with serial application program of Windows operation system completely,and get avoid of handshake lost.
上傳時間: 2013-11-03
上傳用戶:siying
介紹電子束焊機電視監視系統工作原理#論述了電視行場掃描原理和視頻疊加原理$ 針 對電子束焊機電視監視系統的特點及存在的缺點# 提出一種基PIC16C73單片機及字符疊加芯片 -UPD6453的電子束焊機電視監控系統的設計方案# 并給出了詳細的系統軟硬件實現方法$ 整個系統 高效可靠#具有電路簡單%穩定性好%易于擴展%實用性好等優點#提高了焊接效率和焊接質量$
上傳時間: 2013-10-22
上傳用戶:jasson5678
LPC1300片上USB驅動應用與實例
上傳時間: 2014-01-22
上傳用戶:box2000
首先研究CAN總線和SAE J1939協議,提出一種基于MC9S12HZ256微控制器的總線式汽車數字儀表解決方案。詳細介紹SAE J1939協議的報文幀格式及應用層協議中發動機相關參數的定義,以及步進電機及其驅動和車速信號的處理方法。該數字儀表系統硬件平臺由微處理器和信號采集和信息處理及顯示等模塊組成。軟件設計部分編程實現了對CAN總線和各傳感器數據的讀取、處理。該系統能夠實時反映車輛工況。 Abstract: In this paper,CAN bus and SAE J1939protocol are researched,and a vehicle digital instrument solution based on MC9S12HZ256MCU is proposed.The message frame format and some engine-related parameters’definition in SAE J1939application layer protocol are introduced in detail.Stepper motor and its driver,the methods of speed signal process-ing are also introduced.The hardware platform of vehicle digital instrument is composed by MCU,signal acquisition mod-ule,and signal processing and displaying module.Data receiving and processing from CAN bus and sensors are accom-plished by programming,and vehicle condition can be reflected in real-time.
上傳時間: 2013-10-20
上傳用戶:huannan88
摘要:本文介紹應用PIC16C57單片機設計的一種可編程、高性能的數碼式樓宇對講系統,詳細闡明了有關工作原理和關鍵技術。本系統充分應用PIC單片機的軟硬件資源,具有可編程、電路簡單、功能強大等優點,在安居工程、樓宇技防系統等領域具有廣泛的應用前景。 關鍵詞:PIC 單片機 樓宇對講 編碼 譯碼 可編程
上傳時間: 2013-11-14
上傳用戶:hj_18
偉福LAB6000U系列仿真實驗系統性能特點:USB通信接口+串行通信接口含偉福先進的E6000仿真功能,硬件斷點、不占用用戶資源含32路、16K深度、10M的邏輯分析儀,32K深度跟蹤器,8路、20M波形發生器含靜態硬件測試儀(windows版本)含保護電路,仿真器部分與用戶電路部分采用隔離技術,使用更加安全可靠一機多用,配置51/96/8088仿真板可以仿真MCS51/MCS96/8086具有擴展功能,在板DIP擴展座和EPLD擴展座給實驗的擴展提供空間軟件平臺使用最新偉福E6000仿真器軟件,運行于WIN9x/WINME/WINNT
上傳時間: 2013-10-23
上傳用戶:chfanjiang
概述 USB全自動下載(在線編程)STC單片機實驗板,是浙江省《單片機原理及應用》精品課程組2009年新推出的,專為無串行口的筆記本電腦用戶而設計的單片機學習實驗板,該板的最大特點:既是單片機的學習實驗板,又是STC系列單片機的在線編程調試器。
上傳時間: 2013-10-26
上傳用戶:yjj631
以AVR單片機ATmega8和USB接口器件PDIUSBD12為核心,基于標準的USB1.1協議,設計一種通用USB接口模塊,以滿足嵌入式系統中對USB接口的需求。對模塊的硬件電路或單片機固件程序的硬件接口層稍加修改即可用于其他各種微處理器。該模塊可為各種嵌入式系統增加USB接口,實現與USB主機系統通信。 Abstract: Based on AVR microcontroller ATmega8 and USB interface chip PDIUSBD12, a general USB interface module is designed according to USB1.1 protocol for various requirements of embedded systems. Only with few modifications in circuit or hardware abstract layer of firmware, the module can be used on many types of microprocessors. All kinds of embedded systems can realize high speed and stable communication with USB host systems, owing to the facility of this module.
上傳時間: 2014-01-08
上傳用戶:趙云興
針對材料試驗機等設備中要求測量或控制材料拉伸或壓縮的位移,一般采用光電軸角編碼器檢測位置信號,輸出正交編碼脈沖信號。若采用其他方法檢測位置信號,必然導致電路設計復雜,可靠性降低。因此,提出一種基于LS7266R1的電子式萬能材料試驗機設計方案。給出了試驗機中的控制器工作原理,LS7266R1與單片機的接口硬件設計,以及主程序軟件流程圖。巧妙地把力量傳感器,位移傳感器等機械運動狀態的壓力或拉力以及位置坐標,變成了電壓信號和電脈沖數字信號,供A/D測量和LS7266R1計數,從而實現了獨立完成材料試驗控制或通過PC機串口命令完成材料試驗控制。 Abstract: Aiming at the requirement that the displacement of the tension and compression always be tested and controlled in the equipement such as material testing machine. The position signal was tested by photoelectric axial angle coder. Therefore, the paper proposes the design of electronic universal testing machine design based on LS7266R1. If the position signal detected by other methods, will inevitably lead to the circuit design complexity, reliability decreased. The work theory of the controller, the hardware interface design between LS7266R1 and single chip, and the flow chart of main program, are presented in this paper. The signal of the compression or tension power and displacement at working, which tested by power sensor and displacement sensor especially, is changed into electric voltage and electric pulse numerical signals. And these signals can be tested by A/D and counted by LS7266R1. Finally the test of the material properties can be controlled by itself, or controlled by the COM command of PC.
上傳時間: 2013-11-02
上傳用戶:yl1140vista