After the serial peripheral interface ( SPI) was used to implement communication of Arm processor with CAN controller. CAN-Bus driver program and application program in Arm-Linux embedded system were designed, and the graphical user interface ( GUI) based on Arm-Linux was developed. Arm处理器以同步外设接口(SPI)方式与CAN控制器相通信,开发了Arm-Linux嵌入式系统下的CAN-Bus驱动及应用程序,且设计了嵌入式环境下图形界面系统(GUI)。
This paper analyzes the operating principle of the embedded USB On-The-GO ( OTG) host/ peripheral controller, proposes the device driver framework for implementing the USB OTG function, and realizes the USB OTG function on the Linux operating system according to this framework. 本文分析了嵌入式USBOTG主/从控制器芯片的工作原理,提出了USBOTG设备驱动程序框架,并据此框架在Linux操作系统上设计和实现了USBOTG功能。
Design for Peripheral Driver of CDMA Mobilephone CDMA手机外围驱动设计
The peripheral controller consists of frequency detector, data sample controller, FIFO, LCD driver and the interface circuit between DSP and FPGA. 外围控制器囊括了硬件系统中几乎所有的数字电路,包括频率/周期测量、数据采集控制、FIFO、LCD驱动以及FPGA与DSP之间的接口电路等。
The singlechip is the core of optic power of control system, and peripheral circuit includes power sampling and current driver. The PD control algorithm is used to control the electric current. So it can control the optic power of LD. 对光功率控制系统也以单片机为核心,配合外围的功率采样电路和电流驱动电路,同时使用PD控制算法,控制电源电流,从而控制激光器光功率输出。
Generation of Linux Peripheral Device Driver Based on IP 基于IP的Linux外设驱动生成
The principle of position detection of the virtual absolute optical encoder is introduced and the method of improving the resolution by peripheral multi-frequency circuit is designed. A practical serial communication protocol design between the encoder and the servo driver is given out. 介绍了虚拟绝对式光电编码器的位置检测原理以及通过外部倍频电路进一步提高其分辨力的方法,并给出了一种实用的编码器与伺服驱动器之间的串行通信协议设计。
The design of ADC peripheral circuit, such as isolation circuit of power and signal driver circuit, and hints of PCB design are emphasized in the paper. An Analog Interpolation Method Base of A/ D Sampling After that, evaluated the effect of EPCs adhesion after Ad. 还结合实际的高速高精度AD电路的设计,介绍了AD转换电路的电源、数字与模拟电路的隔离、信号驱动等电路的设计原理,以及印制板电路布线和布局的一些原则和方法。
The software logical analyzer is mainly used in debugging and reverse engineering of the expansion card and other peripheral device in PCs. Its basic function is to trap the I/ O port accessing instructions continuously that hardware driver send to the device. 软件逻辑分析仪主要用于调试和逆向设计PC机扩展卡及其他外围设备,其基本功能是连续长时间捕获驱动软件对硬件设备发出的I/O端口操作指令。
Principle and structure of a kind of new mechanical peripheral spindle vibration exciting driver 一种新型机械式周向振动主轴激振驱动器的原理与结构
Access control module of the removable storage device prevents copying files from computer peripheral equipment through a file filter driver attached on the file system of the Windows OS which can head off requests of accessing the removable storage device. 移动存储设备访问控制模块通过在Windows的文件系统之上附加一层文件过滤驱动程序来拦截对移动存储设备的访问请求,达到防止文件通过计算机外设被非法拷贝的目的。
Second, peripheral net equipment driver is designed and verified. And the result indicates that it can work effectively. 其次对外围的网络驱动进行了设计和编写,主要针对的是10M/100M自适应的FEC网络驱动,并对驱动程序进行了检验,结果表明其可以有效的进行工作。
Putting the software together, and writing various peripheral driver and application software, including read and write Flash drives, TCP applications, serial port application, Modbus client applications on the basis of the software. 将这些软件集合到一起,并在这些软件的基础上,编写外围设备的各种驱动及应用软件,包括Flash读写驱动、TCP客户端应用、串口应用、Modbus应用。
Meanwhile, the designs of peripheral devices hardware and network driver are introduced in detail. 同时,对外围器件的硬件电路设计和网络驱动设计也作了详细的分析。
Debugged the circuit board, wrote the peripheral driver and video capture driver program, transplanted DSP/ BIOS RTOS, divided system memory, wrote multi-task program, transplanted and optimized algorithm, developed network program, wrote network testing interface by using MFC. 3. 调试硬件电路,编写外围驱动以及视频采集驱动程序,移植DSP/BIOS系统,划分系统存储空间,编写多任务程序,移植和优化车牌算法程序,开发网络程序,利用MFC编写网络测试界面等。
According to the on-chip peripheral circuits, here, u-boot and Linux kernel are transplanted, and the kernel driver procedure is modified. 根据该芯片外围电路对u-boot和Linux内核进行了移植,还涉及到了内核驱动程序的开发。
We overcome the performance bottlenecks in accessing peripheral devices, and provide a reliable and efficient mechanism to ensure the communication between the applications and the driver services. 本文克服了用户空间程序访问外部设备中存在的性能瓶颈,实现了用户空间对外围设备的高效访问,并提供了可靠高效的机制来保证应用程序和驱动服务之间的通讯。
Peripheral modules includes mini-pump driver module, monitoring module detecting the conditions ( temperature, flow, humidity) of the reaction chamber, the LED driver module providing light source and the USB communication module. 外围模块包括抽取气体的微型气泵驱动模块,监测温度、湿度、流量的反应条件监测模块,提供背景光源的LED驱动模块,联络上下位机通讯的USB通信模块。
On the basis of the familiar with the basic principles, design and implementation for the peripheral driver of mobilephone involving the LCD, keypad, camera, and the driver can offer bottom support for the upper layers and provide an interactive environment for user. 在熟悉基本原理的基础上设计和实现了手机外围的主要器件LCD、键盘、摄像头的驱动工作,很好地为上层提供了底层支持,给用户提供了一个人机交互的环境。
Control system of three-level inverter, which is composed of DSP and its peripheral circuit, IGBT driver, connection circuit and protection circuit, is designed. 设计了三电平的控制系统,包括DSP及外围电路、IGBT驱动、驱动接口和限流电路等。
In order to simplify the peripheral circuit devices, to reducing the power consumption, to improving the system accuracy and real-time, the motor driver combined the Power drive modules and Position detection module together. 本实验外围电路采用专用的控制无刷直流电机驱动器,此驱动器把功率驱动模块和位置检测模块集于一体,其目的是简化系统外围设备,降低系统的功耗,提高了系统的准确性和实时性。
This paper introduces the development process of device driver in the embedded Linux system and develops the peripheral equipment driver. 介绍了在嵌入式Linux系统下设备驱动程序的开发流程,实现对外围设备驱动程序的开发。
On this basis the completion of the Ethernet port, serial peripheral interface, such as the design and preparation of the driver was successfully integrated with the minimum system constituted in one hardware system. 在此基础上完成了以太网口,串口等外围接口的设计,并为之编写了驱动程序成功与最小系统构成完整的硬件系统。
Linux-based peripheral device driver development and application program development is another important part of the paper. 基于Linux的外围设备驱动程序开发和应用程序开发是本论文工作的另一重要部分。
The simulation system can be designed to control the peripheral equipment through the driver interface. 通过驱动程序接口,该仿真系统可被设计用来控制外围设备。
Hardware design includs: DSP peripheral circuits, infrared remote control transmitter and receiver circuits, man-machine interface circuit, Remote control signal circuits, power driver circuit, the current detection, speed detection, location detection, and display circuit. 硬件部分包括:DSP外围电路、红外遥控发送与接收电路、人机界面接口电路、远程信号控制电路、功率驱动电路、电流检测、速度检测、位置检测及显示电路。
The development of the practical peripheral driver for mobile phone has the most important practical significance. 开发实用的手机外设驱动程序具有重要现实意义。