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by: alastair |
last post by:
Hi,
I'm using pyserial to transfer data from PC to another device - the
data is either from an ASCII file or binary data file. Everything
works fine up until I start using files of a particular size on Linux,
around 1.3MB.
When I send the data on windows everything is ok - on Linux I get the
following traceback:
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by: Lisa Pearlson |
last post by:
Hi,
My php application (on Apache/Linux) needs to do the following:
The PHP script receives a request from a client (binary), asking for certain
records of data.
My PHP script loops through all records and sends each of them ONE BY ONE.
After each record that my server script sends, it waits for the client to
confirm proper reception with an ACK (binary digit).
When there are no more records, my server script sends the client a binary
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by: nephish |
last post by:
i have an interesting project at work going on. here is the challenge.
i am using the serial module to read data from a serial input.
it comes in as a hex. i need to make it a binary and compare it bit by
bit to another byte. They have some weird way they set this up that i
have to compare these things with AND. in other words, if bit 1 is 1
AND bit 1 is 1 then the real value is 1...
long story short. is there a good way to compare...
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by: Tom Van Ginneken |
last post by:
Hi,
I need to write binary data to a serial port. I am using this function:
#include <unistd.h>
ssize_t write(int fd, const void *buf, size_t count);
I am able to write a alpha-numeric character to the port using this:
write (filedescriptor,"a",1);
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by: Claude Yih |
last post by:
Hi, everyone. I got a question. How can I identify whether a file is a
binary file or an ascii text file? For instance, I wrote a piece of
code and saved as "Test.c". I knew it was an ascii text file. Then
after compilation, I got a "Test" file and it was a binary executable
file. The problem is, I know the type of those two files in my mind
because I executed the process of compilation, but how can I make the
computer know the type of a...
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by: davetelling |
last post by:
I am a total newbie, trying to slog through the Visual C# Express
application. I need to be able to convert a single ASCII character (can be
anything from 0 to 255) to an int for use in other places. So far, I cannot
find anything that works. My application gets a string of characters from an
external device via the serial port. I can use the substring method to get
just one character from that input string, and I need to be able to convert...
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by: Freddy Coal |
last post by:
Hi, I'm trying to read a binary file of 2411 Bytes, I would like load all
the file in a String.
I make this function for make that:
'--------------------------
Public Shared Function Read_bin(ByVal ruta As String)
Dim cadena As String = ""
Dim dato As Array
If File.Exists(ruta) = True Then
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by: Rich |
last post by:
Hello,
I am working on a python library for sending and receiving data from a Subaru's ECU (the fuel injection computer) via the OBD-II port and an OBD to USB cable, with the Subaru Select Monitor protocol. There are a few open source programs that do this already (http://romraider.com/ , http://jdash.sourceforge.net/ , http://tari.co.za/downloads/software/source/ ), but they are written in Java or C++. I have never done anything with serial...
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by: Gabriel Genellina |
last post by:
En Fri, 02 May 2008 16:50:46 -0300, Rich <richietommy@yahoo.comescribió:
No, chr works as it should. The same thing can be written as
ser.write("\x80\x10\xF0\x01\xBF\x40")
Are you sure you're talking to the right device, /dev/ttyUSB0? Are the
comm parameters correct?
(BTW, if you get more than a single character per loop, the print
statement will fail - try with ser.read(1))
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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