This GUI is an updated and enhanced version of the “StructBrowser” utility submitted to MatLab Central in May 2003. It comes with new interface and an enhanced display. It uses Microsoft TreeView control to display and explore any kind of MatLab structures. The CRC ExploreStruct was designed to expose the contents of the array struct to any depth and plot any of the components. This tool is very useful for programmers using structures in their code
The concept of the Altera Nios II embedded processor implementation inside Field Programmable Gate Array [FPGA] of the CCD camera for the “Pi of the Sky” experiment is presented. The digital board of the CCD camera, its most important components, current implementation of firmware [VHDL] inside the FPGA and the role of external 8051 microcontroller is briefly described. The main goal of the presented work is to get rid of the external microcontroller and to design new system with Nios II processor built inside FPGA chip. Constraints for implementing the design into the existing camera boards are discussed. New possibilities offered by a larger FPGA for next generation of cameras are considered.
The AT24C512 provides 524,288 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 65,536 words of 8 bits each. The device鈥檚
cascadable feature allows up to four devices to share a common two-wire bus. The
device is optimized for use in many industrial and commercial applications where lowpower
and low-voltage operation are essential. The devices are available in spacesaving
8-pin PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead
Leadless Array (LAP), and 8-lead SAP packages. In addition, the entire family is available
in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
FIBPlus is a component suite intended for work with InterBase. It is direct, fast and flexible InterBase connectivity for Delphi, C++ Builder, Ada and Kylix. FIBPlus supports Delphi 5-7, Delphi 2005, Delphi 2006, Delphi 2007, C++ Builder 5-6, C++ Builder 2006, C++ Builder 2007, Kylix 3, gnat-3.15p, gnat2006 GPL, and all versions of InterBase 4.x-7.x, InterBase 2007 and Firebird 1.x-2.x.
Using FIBPlus in your applications you do not need to install any additional software except for InterBase Client Software. FIBPlus supports all special InterBase features such as array-fields, event alerters, BLOB-fields, etc.
FIBPlus is a native component set and its evaluation versions are distributed partially in sources.
Registering FIBPlus you get full sources of components and technical support
procedure senddata
var
i:integer commflg : Boolean
begin
commflg:=true
for i:=1 to 8 do
begin
if not fcomm comml writecommdata(sendbutter,i) then
begin
Commflg=false
break
end
end
end
(4) 接收數據
在編寫基于串口的計算機工業測控時，通常需要由下位機向PC機發送數據以使PC機了解系統的測試數據或下位機的運行狀態，并進而控制下位機的行為。利用Spcomm串口控件接收下位機發送的數據信息的示例代碼如下：
//事件驅動方式接收數據程序
procedure TForm1.CommlReceiveData(Sender:Tobject Buffer:Pointer bufferLength:Word)
var
receivedata:array of byte
begin
sleep(100) //等待100ms，保證接收到所有數據
move(buffef ,receivedata,bufferlength)
//將接收緩存區中的數據轉移到數組中
……
end
(5) 關閉串口
在系統開發中，應注意在不使用串口時應及時關閉串口，釋放系統資源，否則可能會影響系統的其它應用。關閉串口的代碼如下：
procedure TForm1.FormClose ( Sender TObj ect:var Action:TCIoseAction )
begin
comml.StopComm
end
WSNs being energy constrained systems, one major problem is to employ the sensor nodes in such a manner so as to ensure maximum coverage and connectivity with minimal or optimal number of nodes and furthermore elongate network lifetime with maximum energy utilization.
The problem addressed has been tackled for 1-D linear array and further extended to 2-Dimensions as stated in the next slides.
Heapsort
1.A heap is a binary tree satisfying the followingconditions:
-This tree is completely balanced.
-If the height of this binary tree is h, then leaves can be at level h or level h-1.
-All leaves at level h are as far to the left as possible.
-The data associated with all descendants of a node are smaller than the datum associated with this node.
Implementation
1.using a linear array not a binary tree.
-The sons of A(h) are A(2h) and A(2h+1).
2.time complexity: O(n log n)
