embedded system software

1. Naming specificationTo make variables better understood by other developers who read the code, you need to use a prefixA (array), B (Boolean), I (4-byte integer), u (unsigned integer number), p (pointer), S (String), SZ (null-terminated string)-For example:BOOL Bflag;int iCount;Char Szname[name_len];i,j,k,m,n,x,y,z single-letter variables are used at loop control and indexing, non-abusive • Local static variables must be prefixed with s_, such as S_bflag, on the basis of other rules. • Global

Different from general software programming, embedded system programming is based on a specific hardware platform, which is bound to require Programming Language Strong hardware operation capability. Undoubtedly, assembly language has such characteristics. However, due to the complexity of the assembly language development process, it is not a general choice for

application-centric, computer technology-based, software and hardware cropping, adapted to the application system's functional, reliability, cost, volume, power consumption requirements of a dedicated computer system-Embedded Operating System it is extended.Linux is a free operating

In this paper, a new dynamic loading technique for embedded system is proposed, which is simple in design, small in resource and low in cost, and is applied successfully in Deltaos. It can improve the flexibility of the system and expand the properties. The principle and application of loading and dynamic linkage, explain the relevant terminology, describe the ba

Select a GUI system in an embedded Linux environment-general Linux technology-Linux programming and kernel information. For more information, see the following. In the field of embedded systems, there are many GUI systems, such as QNX Photon MicroGUI. But in the field of Embedded Linux, which GUI systems are available?

Design and Implementation of Remote network monitoring system for Embedded MPEG-4 based on ARM Abstract: This paper introduces in detail the Design of Video Acquisition, compression, transmission and system control of the embedded MPEG-4 remote network monitoring system base

the address bus ~~~ 6. array pointer #include "stdio.h" int main(int argc, char const *argv[]) { int a[5]={1,2,3,4,5}; int *ptr=(int *)(a+1); printf("%d,%d \n",*(a+1),*(ptr-1)); return 0; } Answer: 2,5 * (A + 1) is a [1], * (ptr-1) is a [4], the execution result is 2, 5. A + 1 is not the first address + 1. The system will consider that the offset of adding an array a is the offset of an array (in this example, It is 5 Int values) int * PTR

Division Multiple Access wireless network features wide coverage, high efficiency, and low cost. The data transmission rate of the Code Division Multiple Access Network is up to 150 kb/s. The embedded wireless video positioning and monitoring system developed here is a data transmission system built Based on H.264 video compression technology, Code Division Mult

"abstract" in order to reduce the development difficulty of DSP system software, to ensure the real-time nature of the system, shorten the development cycle, the embedded real-time operating system Μc/os-ⅱ porting to the DSP chip is a common method at present. This paper int

The target platform at91sam9g20 used in this paper is a SOC embedded microprocessor developed by ATMEL using the ARM926EJ-S processor kernel. It clock speed reaches 400 MHz and has the Advanced Peripheral DMA and distributed memory architecture of ATMEL, together with the 6-layer Bus Matrix, the system can transmit multiple data between memory, peripherals, and external interfaces at the same time without c

For embedded system development, the reason for not using Linux-general Linux technology-Linux programming and kernel information is as follows. Source http://blog.csdn.net/raymondxu/archive/2005/01/31/275191.aspx I should be able to count as the first it developer playing Linux in China. When I first developed Linux, the high-end configuration in the computer market was still 486. With the increase in pro

flexibility, scalability, and scalability of the system, an application-centric, computer technology-based, software and hardware cropping, adapted to the application system's functional, reliability, cost, volume, power consumption requirements of a dedicated computer system-Embedded Operating

partitions in one flash. Each partition acts as an MTD.Block device, which can distribute system software and data to different partitions. At the same time, different partitions can adopt different file system formats. This is very important because it provides flexibility for the establishment of multiple file systems in e