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Mar 12, 2008 You set up a serial connection by specifying a name (anything goes) an icon (select one) and then you come to this screen which lets you specify the exact serial port to use. You can also get to this screen by clicking on the little hand-on-document icon. The Serial Configuration block configures parameters for a serial port that you can use to send and receive data. You must set the parameters of your serial port before you set up the Serial Receive and the Serial Send block.

I'm using Linux OS as a programming platform. And I want to create a program that uses serial(/dev/ttyS0) port as a communication medium. I already know how to open, read, write and close the serial port using standard Linux function.

Now my question is how can I able to setup the serial port? What I mean is I want to change the setting values of a serial device programmatically.

Many thanks.

The Raspberry Pi GPIO serial port configuration has changed under Jessie / Stretch and also with the Raspberry PI 3.This post describes how it is now setup.
To install serial ports and COM ports using these system-supplied components, do the following: Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port.

skaffman

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domlao

domlao

Download Serial Port Terminal

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3 Answers

The man page you need to read is termios(3). It describes the POSIX functions to manipulate the TTY line discipline, which is where the serial parameters are.

camhcamh

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You will need to call tcgetattr() and tcsetattr() to change the baud rate, stop bits, etc.

When dealing with device ports, it's often a good idea to use I/O with timeouts. See select() and poll() for that.

James RothJames Roth

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At this link:http://www.easysw.com/~mike/serial/serial.htmlYou will find a bunch of useful information.

eeerahul

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Setup Serial Port Windows 7

DanieleDaniele

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Cardrecovery_setup Serial Key

In order to set it up, first you have to find it on your computer. Long long ago, almost all computers had two serial ports, called 'COM1' and 'COM2', one a with a nine pin and the other with a 25 pin connector.
Now times have changed and the serial port has vanished.
Don't give up hope, however. The USB to serial converter has arrived, and it can be used instead. It is usually a dongle which plugs into a USB port, with a nine pin male connecter at the other end.
On my desktop computer, the motherboard has two built in serial ports. The third seial port, here labelled COM4, belongs to the USB to serial adapter I have plugged in.
So, to find the serial port on your computer, scout around its back. If you find a nine pin male connector (two rows, five and four, pins sticking out inside a metal shell) it has a serial port built in.
Or get a USB to serial converter and plug it in.
Open up Device Manager. Right click on 'My Computer' and select properties (at the bottom of the list that pops up). Click on the 'Hardware' tab. Click on the 'Device Manager' button and a something similiar to this picture should appear.
Click on the '+' sign on the left of the 'Ports (COM & LPT) to expand it. The list of printer and Serial ports available will be shown. Make a note of those, you will need them in the steps that follow.