avr 4311

of common users are limited;All_squash: no matter who the NFS user is, his identity will be limited to a specified normal user identity;Anonuid/anongid: used together with root_squash and all_squash to specify the uid and gid after the User-Defined NFS is used, provided that the uid and gid exist in the/etc/passwd of the local machine.(Iii) File PermissionsThe write permission for an object must meet the following requirements:(1) user account, that is, UID-related identity(2) the NFS server al

Wuhan Hua inlayTechnology Co., Ltd.Project Development Scope:One, mobile internet app direction1, Android mobile app development;2, iOS mobile app development;3, HTML5 mobile internet app developmentsecond, the embedded system direction1, Arm+linux direction of application, system migration and the development of the underlying driver;2, SCM 51 series, AVR series, MSP430 series hardware and software project development;3, CORTEX-M3 (STM32 platform) so

I. INTRODUCTION of GCC:The GNU Compiler Collection, often referred to as GCC, is a set of compilers developed by GNU, and why is it an editor set instead of a compiler? That's because it not only supports C language compilation, but also supports C + +, Ada, Objective C and many other languages. In addition, GCC support for the hardware platform can be ubiquitous, it not only supports the X86 processor architecture, but also supports arm, Motorola 68000, Motorola 8800, Atmel

directly on a 51 single-chip or AVR microcontroller, unlike the driver that provides a unified interface to the operating system.★file_operations Structural BodyThere are a lot of drive devices, so the programs that drive them are different, so how does the driver provide a unified interface? The key is the structure, which is defined in the Include/linux/fs.h file.struct File_operations {struct module *owner;loff_t (*llseek) (struct file *, loff_t,

Python now gives the feeling is big, the thing is many, after installs in the Windows unexpectedly to occupy 100 megabytes of space. Lua feels very small and light. Python 2.7 Code compiled under Linux also has more than 3M after strip, earlier versions should be smaller, but there should be seven hundred or eight hundred trillion. So does python not compile a lightweight, small-sized code? The answer is no, here are a few Python variants to see how small python can be.1, PymiteThis is a python

: For two integers and Print a horizontal line Print N Horizontal lines function Note Cannot nest defined functions The dead loop calls themselves to call themselves cannot be defined repeatedly, can be declared repeatedly Complement of functions Main function Return value: 0, normal exit; 1, abnormal exit printf function #include Return value: The length of

written directly on a 51 single-chip or AVR microcontroller, unlike the driver that provides a unified interface to the operating system.★file_operations Structural BodyThere are many kinds of drive devices, so the programs that drive them are different, so how does the driver provide a unified interface? The key is the struct, which is defined in the Include/linux/fs.h file.struct File_operations {struct module *owner;loff_t (*llseek) (struct file *

install-y Nfs-utils (because of the need to use the command to Showmount)2,SHOWMOUNT-E 192.168.1.107Shown below,Export list for 192.168.1.105:/mnt 192.168.1.1053, MountMount-t nfs-o nolock-o nfsvers=3 192.168.1.105:/mnt/opt = = "Mount-t nfs-o nolock,nfsvers=3 192.168.1.105:/mnt/opt-O nolock mount without locking the purpose is to be able to create files in this directory, modify the file time is shortened, if not added, it will take a long time to react.-O nfsvers specifies that the version of

, normal exit, 1, abnormal exit 2. printf functionL #includeL return Value: Length of string nine, exercise1. Write a function double AVR (int a, int b) to calculate the average of A and B2. Write a function int POWs (int base, int n) to return the n-th square of the base3. Write a function int pieadd (int n), calculate the value of the 1+2+3+......+n and return. For example, the return value of Pieadd (3) is 1+2+3=6 10, the declaration of the functio

long as the pin is connected, it can be adapted. Connect the following pins with the DuPont line 22: Mosi,vcc,rst,sck,miso,gnd.Unfortunately, due to the Arduino IDE's "high-end Air international", it does not recognize this modified firmware of the "Chinese characteristics" usbasp download line, the conventional method can not be burned at all, display the error "could not find USB device" usbasp "" "Avrdude:stk500_getsync (): Not in sync:resp=0x00", unable to connect.3. DispelIn the final anal

Source: usbasp production materials and the whole process (rookie version)I. General Introduction to USBasp:1, the download line, is "ISP" (In System programmability: "is programmed") or "IAP" (in the application programing: "In the Application Programming"), is "the online programming" one way.Here usbasp download line, refers to the use of ATMEGA8 chip, analog USB interface, and control the download process of a circuit unit, mainly suitable for the AVR