running on WinPC + comunication via USB

martin.nkm

Hello, I have two questions.
1/ If I want to use Python and let my WinPC communicate via RS-232
with external embedded computer I know there is a pyserial module,
which I can use it. But what will happen if I want to replace RS-232
by USB? I know I can have virtual COM port, but all the configuration
parameters basically refer to RS-232 parameters - baudrate, bits,
stopbits, parity. In case of USB that's a nonsense I think. Does
anybody know?
2/ Second is a basic question. Do I need also cygwin running on my
Windows PC to get running Python scripts? Or is that Python
interpreter (Win executable) self efficient? Thanks.

Jun 27 '08 #1

Subscribe Reply

1070

Diez B. Roggisch

ma********@goog lemail.com schrieb:

Hello, I have two questions.
1/ If I want to use Python and let my WinPC communicate via RS-232
with external embedded computer I know there is a pyserial module,
which I can use it. But what will happen if I want to replace RS-232
by USB? I know I can have virtual COM port, but all the configuration
parameters basically refer to RS-232 parameters - baudrate, bits,
stopbits, parity. In case of USB that's a nonsense I think. Does
anybody know?

Depending on the setup - no, it's the exact same thing. If e.g. the
usb-device is a usb2serial converter or otherwise offers it's serveces
as a serial-like device, it should work.

Additionally, there is libusb + a python-wrapping for that.

2/ Second is a basic question. Do I need also cygwin running on my
Windows PC to get running Python scripts? Or is that Python
interpreter (Win executable) self efficient? Thanks.

No cygwin needed. In fact you need to be careful *not* to mix python and
cygwin-python. They can happily co-exist - but installing
3rd-party-packages for one doesn't imply they are available for the other.

Diez

Jun 27 '08 #2

Similar topics

2922

asynchronous comunication, wxPython and threads.

by: Zunbeltz Izaola | last post by:

Hi, I have the following problem. I'm developing a GUI program (wxPython). This program has to comunicate (TCP) whit other program that controls a laboratory machine to do a measurement. I have a dialog box, wiht two buttoms "Start measurement" and "Stop". "Start" executes a function that do the measurement in the following way.

Python

6912

Multiple use exe: determine if running as service

by: Ross Presser | last post by:

OK, I've been researching this problem and can't find a definitive answer yet. The situation is one that seems to have come up a few times to different folks. I am writing an application that will function as a windows service and will also present a GUI to the user. I don't want "Interact with desktop"; I want the same exe to run as a...

.NET Framework

10337

Report: Running Total Problem

by: Bill Dika | last post by:

Hi I am trying to calculate a running total of a calculated textbox (tbAtStandard) in GroupFooter1 for placement in a textbox (tbTotalAtStandard) on my report in Groupfooter0. The problem that I am having is that sometimes the correct total shows up in print preview and sometimes it doesn't. Sometimes it is higher and sometimes it is...

Microsoft Access / VBA

5761

Checking whether postgresql is running

by: Ennio-Sr | last post by:

Hi all! Testing a script where I need to make sure that postgresql is running before passing a <psql dbasename -c "insert into ..." > instruction I faced this curious behaviour: This is the relevant content of the script: ------------------ #!/bin/bash /usr/lib/postgresql/bin/pg_ctl status -D /var/lib/postgres/data >/dev/null 2>&1 rtn=$?

PostgreSQL Database

1083

resume TCP comunication

by: zunbeltz | last post by:

Hi, I'am writing a program to cotrol a machine. I use socket comunication (TCP) to do it. I do a measurement in my machine like this: def DoMeasurement(): setup1() setup2() while MeasurementNotFinished():

Python

4326

Fast Multiple Application Comunication

by: Olie | last post by:

This post is realy to get some opinions on the best way of getting fast comunication between multiple applications. I have scowered the web for imformation on this subject and have just found conflicting views and far from ideal solutions. My application has to send small amounts of data about 50bytes to multiple client applications. The...

C# / C Sharp

6468

serial port comunication problem in linux

by: findyasir | last post by:

Hi all, I am having problem comunication with serial port in linux. I have tested the serial port with attaching a serial modem and dialing the numbers with wvdial. it works okie but when i connect HSM to the serial port it sends the message but i did not get a reply. mean it always being blocked in the read function. The same hsm is...

C / C++

3348

Reading USB port and saving a file with the comunication data

by: vhm | last post by:

Hi all, I have to debug a hardware that comunicate with the computer through a USB conection. I know that the harware present some problem when the driver send some type of command to it. I'll like to discover what command is causing the hardware to crash. How can I intercept the comunication via USB between this hardware and the PC and record it...

C / C++

8119

RE: Crystal Reports error code 1603 running deployment on a vista mach

by: =?Utf-8?B?Q2lhcmFuIE8nJ0Rvbm5lbGw=?= | last post by:

On reflection, you could possibly make the app a self extracting zip file which extracts the EXE and a settings file and then starts the app, then when you app closes, it can repack the settings file and itself into the exe. You would probably want a tool for this bit which could be in the zip too. So the app isnt single exe when running but...

C# / C Sharp

7512

What is ONU?

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...

General

7438

Changing the language in Windows 10

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...

Windows Server

7951

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...

Online Marketing

6036

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...

Career Advice

5362

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...

Microsoft Access / VBA

5082

Couldn’t get equations in html when convert word .docx file to html file in C#.

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...

C# / C Sharp

3495

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...

Networking - Hardware / Configuration

1051

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP

751

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

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...

General