NORTi3 is a realtime multitasking operating system conforming to the micro-ITRON 3.0 specification. NORTi3 is divided into two packages: NORTi3 Standard and NORTi3 Extended. The product NORTi3 Extended has implemented all the system calls of level E placed as "added and extended functions” in the micro-ITRON specification as well as the system calls equivalent to level X.
ass="tags">标签： specification multitasking micro-ITRON conforming
ass="time">上传时间： 2014-01-14
ass="username">上传用户：saharawalker
The module LSQ is for unconstrained linear least-squares fitting. It is based upon Applied Statistics algorithm as 274 (see comments at the start of the module). A planar-rotation algorithm is used to update the QR- factorization. This makes it suitable for updating regressions as more data become available. The module contains a test for singularities which is simpler and quicker than calculating the singular-value decomposition. An important feature of the algorithm is that it does not square the condition number. The matrix X X is not formed. Hence it is suitable for ill- conditioned problems, such as fitting polynomials. By taking advantage of the MODULE facility, it has been possible to remove many of the arguments to routines. Apart from the new function VARPRD, and a back-substitution routine BKSUB2 which it calls, the routines behave as in as 274.
ass="tags">标签： least-squares unconstrained Statisti Applied
ass="time">上传时间： 2015-05-14
ass="username">上传用户：aig85
This a very simple Yee algorithm 3D FDTD code in C implementing the free space form of Maxwell s equations on a Cartesian grid. There are no internal materials or geometry. The code as delivered simulates an idealized rectangular waveguide by treating the interior of the mesh as free space/air and enforcing PEC (Perfect Electric Conductor) conditions on the faces of the mesh.
ass="tags">标签： implementing algorithm Maxwell simple
ass="time">上传时间： 2015-05-14
ass="username">上传用户：水中浮云
he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
ass="tags">标签： signal Modulated analog create
ass="time">上传时间： 2015-05-14
ass="username">上传用户：CHINA526
This is a serial mouse driver, which is compliant with Plug and Play, supports dynamic detection (via serenum) and removal (either hotplug or via the device manager). The code serves as a sample for any serial-enumerable device. The behavior of the various routines is documented in the source code files.
ass="tags">标签： compliant detection supports dynamic
ass="time">上传时间： 2015-05-16
ass="username">上传用户：dancnc
Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to work in the random access memory(RAM). Some of them do provide some mechanism for dumping the whole tree into a file and loading it back to the memory in order to make data in that tree persistent. It serves well when there s just small amount of data. When the tree is somewhat bigger, the dumping/loading process could take a lengthy time and makes your mission-critical program less efficient. How about an AVL tree that can directly use the disk for data storage ? If there s something like that, we won t need to read through the whole tree in order to pick up just a little bit imformation(a node), but read only the sectors that are neccssary for locating a certain node and the sectors in which that node lies. This is my initial motivation for writing a storage-media independent AVL Tree. However, as you step forth, you would find that it not only works fine with disks but also fine with memorys, too.
ass="tags">标签： available libraries Although nearly
ass="time">上传时间： 2014-01-22
ass="username">上传用户：zhoujunzhen
The Hardware Book contains misc technical information about computers and other electronic devices. You ll find the pinout to most common (and uncommon) connectors availble, as well as info about how to build
ass="tags">标签： information electronic computers technical
ass="time">上传时间： 2013-12-13
ass="username">上传用户：ommshaggar
解决时钟问题，acm竞赛题 A weird clock marked from 0 to 59 has only a minute hand. It won t move until a special coin is thrown into its box. There are different kinds of coins as your options. However once you make your choice, you cannot use any other kind. There are infinite number of coins of each kind, each marked with a number d ( 0 <= 1000 ), meaning that this coin will make the minute hand move d times clockwise the current time. For example, if the current time is 45, and d = 2. Then the minute hand will move clockwise 90 minutes and will be pointing to 15. Now you are given the initial time s ( 0 <= s <= 59 ) and the coin s type d. Write a program to find the minimum number of d-coins needed to turn the minute hand back to 0.
ass="tags">标签： 时钟
ass="time">上传时间： 2015-05-21
ass="username">上传用户：rishian
The Audio File Library provides a uniform programming interface to standard digital audio file formats. This library allows the processing of audio data to and from audio files of many common formats (currently AIFF, AIFF-C, WAVE, NeXT/Sun .snd/.au, IRCAM, AVR, Amiga IFF/8SVX, and NIST SPHERE). The library also supports compression (currently G.711 mu-law and A-law and IMA and MS ADPCM) as well as PCM formats of all flavors (signed and unsigned integer, single- and double-precision floating point).
ass="tags">标签： programming interface provides standard
ass="time">上传时间： 2014-12-06
ass="username">上传用户：a6697238
eForth is a small portable Forth design for a wide range of microprocessors. This is the first implementation for 8086. as machine dependency is consolidated into 31 code words, moving eForth to other CPU s will be much less of a chore comparing to other Forth models.
ass="tags">标签： microprocessors portable eForth design
ass="time">上传时间： 2014-01-25
ass="username">上传用户：从此走出阴霾
