A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.
标签： user-space can drivers perform
上传时间： 2014-01-01
上传用户：saharawalker
Wishbone to LPC (Low-Pin Count) Bridge, includes master and slave modules. Supports 8-bit I/O Read and Write cycles, 8-bit memory Read/Write cycles, DMA cycles, and up to 32-bit Firmware memory read/write cycles. Serial IRQ support is also provided. None of this has been tested (yet) with a third-party LPC Peripheral or Host.
标签： Wishbone Supports includes Low-Pin
上传时间： 2014-12-20
上传用户：古谷仁美
Chip type : ATmega16L Program type : Application Clock frequency : 4.000000 MHz memory model : Small External SRAM size : 0 Data Stack size : 256
标签： type Application frequency 4.000000
上传时间： 2014-01-08
上传用户：lx9076
Run following Matlab commands to make sure the installation worked correctly. Unlike query function, filterdb does not load all waveforms to memory but returns filtered database object. This is useful when the resulting set of the query is too big to fit in memory. Consequent calls to read function can be made to read content of this filtered database object.
标签： installation following correctly commands
上传时间： 2013-12-30
上传用户：ainimao
CFE contains the following important features: * Easy to port to new SB1250/BCM1480 designs * Initializes CPUs, caches, memory controllers, and peripherals * Built-in device drivers for SB1250 SOC peripherals * Several console choices, including serial ports, ROM emulators, JTAG, etc. * Environment storage in NV EEPROM, flash, etc. * Supports big or little endian operation * Supports 32-bit and 64-bit processors * Support for network bootstrap. Network protocols supported include IP,ARP,ICMP,UDP,DHCP,TFTP. * Support for disk bootstrap. * Provides an external API for boot loaders and startup programs * Simple user interface. UI is easy to remove for embedded apps.
标签： following important contains features
上传时间： 2014-11-23
上传用户：龙飞艇
Functions are mappings from one Manifold to another. Discrete Functions are functions which can be represented using a finite number of values. Given the finite extent of computer memory, algorithms which compute a function that satisfies some special properties are computing a discrete function which approximates a continuous function. Computing the function involves writing a set of equations that may be solved for the values representing the function.
标签： Functions are functions Discrete
上传时间： 2017-08-05
上传用户：671145514
This document specifies a collection of compiler directives, library routines, and environment variables that can be used to specify shared-memory parallelism in C, C++ and Fortran programs. This functionality collectively defines the specification of the OpenMP Application Program Interface (OpenMP API). This specification provides a model for parallel programming that is portable across shared memory architectures from different vendors. Compilers from numerous vendors support the OpenMP API. More information about OpenMP can be found at the following web site:
标签： environment collection directives specifies
上传时间： 2013-12-25
上传用户：shinesyh
A programmable digital signal processor (PDSP) is a special-purpose microprocessor with specialized architecture and instruction set for implementing DSP algorithms. Typical architectural features include multiple memory partitions (onchip, off-chip, data memory, program memory, etc.), multiple (generally pipelined) arithmetic and logic units (ALUs), nonuniform register sets, and extensive hardware numeric support [1,2]. Single-chip PDSPs have become increasingly popular for real-time DSP applications [3,4].
标签： special-purpose microprocessor programmable specialized
上传时间： 2017-08-13
上传用户：脚趾头
This book is about the programming and applying the PIC18F microcontrollers with C, with advanced examples like SD memory, USB communication, CAN controller and RTOS.
标签： microcontrollers with programming the
上传时间： 2013-12-27
上传用户：h886166
具体内容主要包括以下几个方面： 1、FPGA的基础知识和概念，设计流程。 2、QuartuII软件使用方法和技巧 3、VerilogHDL语言设计方法和技巧 4、基于FPGA的嵌入式系统设计(NIOSII设计) 5、FPGA硬件电路板设计 6、其他专题讨论(如memory控制器设计，图像处理算法设计，通信系统算法设计等)
上传时间： 2013-11-26
上传用户：jjj0202
