c tutorial serial port
Serial port programming for Windows and Linux
Ngày tải lên :
05/11/2013, 20:15
... 2003
Abstract
While devices that use RS−232 and the serial port to
communicate are becoming increasingly rare, it is still
an important skill to have. Serial port programming,
at its most basic level, consists ... the port, configur-
ing the port, reading and writing to the port, and fi-
nally, closing the port. It is possible then to create an
API that contains the functions necessary to success-
fully communicate ... to be changed
//CREAD says to enable the receiver
options .c_ cflag |= (CLOCAL | CREAD);
//apply the settings to the serial port
//TCSNOW means apply the changes now
//other valid options include:
//...
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Serial Port Complete
Ngày tải lên :
06/11/2013, 08:15
... Framework class library can use the SerialPort class to
access COM ports. Some USB devices function as virtual COM ports, which
applications can access in the same way as physical serial ports. ... other support for serial- port communications. Pro-
grammers thus can access ports without understanding every detail of the
UART’s architecture. To gain access to a port, an application selects a ... system’s CPU. Any PC with a free expansion slot can add this type of
port on an expansion card.
• RS-232 ports on PC Cards (also called PCMCIA cards). Any PC with a free
PC-Card slot can use these.
•...
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Tài liệu chương 5: Hoạt động của port nối tiếp (Serial Port) pptx
Ngày tải lên :
20/01/2014, 19:20
... Xóa c ngắt thu (RI=0)
⇒
Vi c thu dữ
liệu bắt ñầu: C c xung clock dịch bit ñư c gởi ra chân TxD và dữ liệu từ thiết bị bên ngoài
ñư c dịch vào chân RxD bởi c c xung clock dịch bit này (vi c ...
SM0: Serial Mode 0
Bit 0 chọn chế độ c a port nối tiếp.
C c chế độ c a port nối tiếp:
Trư c khi sử dụng port nối tiếp c n phải:
Chương 5: Hoạt ñộng c a port nối tiếp (Serial Port) . ... KHIỂN PORT NỐI TIẾP (SCON):
Thanh ghi SCON (Serial Control Register): chứa c c bit dùng để điều khiển chế độ hoạt động
và báo trạng thái c a port nối tiếp.
C u tr c của thanh ghi SCON:
SCON: Serial...
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Hướng dẫn giao tiếp Serial port sử dụng VB.Net 2008 qua một số ví dụ pot
Ngày tải lên :
09/03/2014, 20:20
...
SerialPort1.Close()
End If
'Lấy danh sách c c cổng c trên máy'
For i As Integer = 0 To
My.Computer.Ports.SerialPortNames.Count - 1
ComboBox1.Items.Add(My.Computer.Ports.SerialPortNames(i)) ...
Chat giữa hai máy tính qua c ng Com
TextBox1 TextBox
RichTextBox RichTextBox1
SerialPort SerialPort1
1.2: Lập trình
Để lập trình cho c c đối tượng bạn double click vào c c ... Sonbui1903
Chat giữa hai máy tính qua c ng Com
II: C c ví dụ
C c câu lệnh sử dụng với Serialport c thể xem tại:
http://msdn.microsoft.com/en-us/library/system.io.ports.serialport.aspx#Y3078...
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BÀI 4: CẤU HÌNH CÁC PORT VÀ LỆNH C DÙNG CHO PORT CỦA PIC pdf
Ngày tải lên :
27/06/2014, 04:20
... chân PortC c mạch đệm Schmitt Trigger ở ngõ vào.
Khi khối I
2
C đƣ c cho phép thì c c chân PORTC<4:3> c thể đƣ c định c u hình ở c c m c I
2
C ho c
m c SMBUS bằng c ch sử dụng bit CKE (SSPSTAT<6>). ... khiển kh c nhau c c u hình c c port c ng kh c nhau, phần này sẽ khảo sát c c port c a
vi điều khiển PIC bao gồm port A, B, C, D , E và c c lệnh ngơn ngữ C liên quan đến c c port.
Mỗi port c a vi ... đ c ở m c cao, kết quả đ c bằng 0 nếu chân đ c ở m c thấp.
Ch c năng: lệnh đ c m c logic c a 1 chân nhƣng khơng làm thay đổi hƣớng c a chân.
C hiệu l c: lệnh này áp dụng cho tất c c c thiết...
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Programming Serial and Parallel Ports
Ngày tải lên :
27/10/2013, 14:15
... ");
switch (thePortID.getPortType()) {
case CommPortIdentifier .PORT _SERIAL:
thePort = thePortID.open("DarwinSys DataComm",
TIMEOUTSECONDS * 1000);
SerialPort myPort = (SerialPort) thePort;
Example ... PortInUseException,
UnsupportedCommOperationException {
new CommPortOpen(null).converse();
System.exit(0);
}
/* Constructor */
public CommPortOpen(Frame f)
throws IOException, NoSuchPortException, PortInUseException,
UnsupportedCommOperationException ... */
CommPortIdentifier thePortID;
/** The chosen Port itself */
CommPort thePort;
public static void main(String[] argv)
throws IOException, NoSuchPortException, PortInUseException,
UnsupportedCommOperationException...
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Tài liệu Báo cáo khoa học: The ubiquitin ligase Itch mediates the antiapoptotic activity of epidermal growth factor by promoting the ubiquitylation and degradation of the truncated C-terminal portion of Bid ppt
Ngày tải lên :
16/02/2014, 09:20
... demonstrated that Itch protects cells
from the apoptotic effect of tBid. Itch overexpression
decreases tBid-induced caspase 3 activity, increasing
cell viability. Importantly, when endogenous Itch is
downregulated ... the basal level of Itch
reduces cell survival and increases caspase 3 activity,
consistent with increased tBid levels in these cells.
Interestingly, Itch interacts specifically with tBid,
and ... for many of the morphological changes
that occur during apoptosis. The mitochondrial release
of cytochrome c and second mitochondria-derived
activator of caspase (Smac ⁄ DIABLO) allows for the
formation...
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C++ Language Tutorial pot
Ngày tải lên :
05/03/2014, 12:20
... under which circumstances.
With the introduction of control structures we are going to have to introduce a new concept: the compound-
statement or block. A block is a group of statements which are ... character into cout. In C+ + a new-line character can be specified as \n
(backslash, n):
cout << "First sentence.\n ";
cout << "Second sentence.\nThird sentence."
; ... a semicolon character (;) at the
end, it will also be appended in all occurrences within the body of the program that the preprocessor replaces.
Declared constants (const)
With the const prefix...
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C Programming Tutorial doc
Ngày tải lên :
11/03/2014, 08:20
... fraction */
Character constants
Character literals are enclosed in single quotes e.g., 'x' and can be stored in a simple
variable of char type.
A character literal can be a plain character ... blocks of the C programming language, let us look a
bare minimum C program structure so that we can take it as a reference in upcoming
chapters.
C Hello World Example
A C program basically consists ... variable can be composed of letters, digits, and the underscore character. It
must begin with either a letter or an underscore. Upper and lowercase letters are distinct
because C is case-sensitive....
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Developing and Porting C and C++ Applications on Aix pdf
Ngày tải lên :
17/03/2014, 13:20
... SET Secure Electronic Transaction LLC.
Other company, product and service names may be trademarks or service marks of others.
Chapter 1. C and C+ + compilers 9
char *name;
int salary;
char addr[40];
char ... information on the semantics of the complex
data types, please refer to C for AIX C/ C++ Language Reference, SC09-4958.
inline function specifier
Function inlining reduces function call overhead, as ... Mark Changfoot, Paul Pacholski, Rene Matteau
Developing and Porting C and C+ + Applications on
AIX
June 2003
International Technical Support Organization
SG24-5674-01
Chapter 1. C and C+ + compilers...
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Nicolai josutis the c++ standard library a tutorial and reference
Ngày tải lên :
19/03/2014, 14:11
... matches exactly, the implicit
copy constructor is generated and called. For example:
template <class T>
class MyClass<T> {
public:
//copy constructor with implicit type conversion ... describes
the correct way to define and integrate special I/O channels, which are often
implemented incorrectly in practice.
• Chapter 14: Internationalization
This chapter covers the concepts ... exception specification includes the class bad_exception, then any exception
not part of the specification may be replaced by bad_exception within the function
unexpected().[1]
[1]
You can...
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A TUTORIAL ON POINTERS AND ARRAYS IN C
Ngày tải lên :
05/04/2014, 01:21
...
function you can add a statement which attempts to change the contents of that which is
pointed to by source, such as:
*source = 'X';
which would normally change the first character of ... ANSI
compliant compiler. I have also tried to carefully block the code within the text. That
way, with the help of an ASCII text editor, you can copy a given block of code to a new
file and compile ... structure it means that we must copy the contents of the
structure from the calling function to the called function. In systems using stacks, this is
done by pushing the contents of the structure...
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Marilyn Portrait Tutorial pdf
Ngày tải lên :
29/06/2014, 00:20
... black shades, and can be used over the Derwent sketching to help
with gradual tones (e.g. the background of Holiday Golightly. If your pencil
becomes too short, use a pencil extender because ... it is important to move in these directions.
First of all, shade the mid tones of the background fabric with your 4b
pencil. With something that's out of focus, like this background, ... work wonders, as seen in this tutorial. Before I
was confident about drawing freehand, I used circles and sausages, and then
built up the correct shapes after the basic shapes:
Using the Mars...
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Pencil Portrait Tutorial pdf
Ngày tải lên :
29/06/2014, 00:20
... with basic outlines and single lined drawings, Start shading the
parts with small and light stokes using any number of pencil varrying according to
you if you want dark portrait use 4B pencils ...
Then come the hair part, For hair treat a single hair with one stoke and go in the
directing the hair as his hairstyle goes. As light is falling on the middle of his hair
Pencil Portrait Tutorial ... are any
and your portrait is ready.
your thumb.
Step 3
Then start making detailing with the eyes,nose and lips. i prefer compliting the
face first as it is the trickiest part. Shade...
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Win32 Programming Tutorial Tham khảo toàn diện về Con trỏ trong C/C++ ppt
Ngày tải lên :
29/06/2014, 08:20
...
thường, c c đối tượng c thể đư c truy xuất bằng một trong 2 c ch: tr c tiếp bằng đại
diện ho c gián tiếp bằng con trỏ. C c biến con trỏ đư c định nghĩa trỏ tới c c đối tượng
c một kiểu dữ liệu c ... lệnh c a
thuật toán sắp xếp, thì bạn hãy để cho caller cung c p c ch hàm sắp xếp c a riêng nó.
Bằng c ch làm này, bạn tránh đư c hard-coded, t c là tính tái sử dụng không cao,
hàm Ascending chỉ ... giá trị c a pInt là
1776 (địa chỉ c a biến var). Vì con trỏ c ng là biến cho nên nó c ng phải c địa
chỉ trong bộ nhớ, c n số byte c n thiết cho con trỏ c thể là 2 ho c 4 byte phụ
thu c hệ...
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