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Questions tagged [baud-rate]

"baud-rate" refers to the number of signal or symbol changes that occur per unit time. This tag is for questions that get, set, or otherwise manipulate the baud rate.

In telecommunications and electronics, baud (/ˈbɔːd/, unit symbol "Bd") means symbols per second or pulses per second. A symbol being one of several voltage, frequency, or phase changes.

Thus a "baud-rate" refers to the number of signal or symbol changes that occur over time—most commonly per second. A baud rate differs from a bit-rate in that a single symbol transition (baud) can communicate more than one bit during the interval, whereas a bit rate is a single bit per interval. However, if only two symbols are defined for some system, e.g. "0" and "1", then the baud/bit rates are synonymous.

This tag is OS and Language independent, as long as there's a mechanism for manipulating the serial data rate this tag can apply.

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Issue with DESfire EV1 wrapped APDU for PPS command while using javax.smartcardio

I am writing a software in java, on the reader side, to communicate with a MiFare DESfire EV1 card. I am using for this javax.smartcardio. I managed to create a channel and send wrapped APDU of native DESfire commands. For example I managed to read…
Saralou
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Struggling With Arduino

I am enjoying programming in Visual Studio 2012 Express with the C# language, and have purchased an Arduino Uno. I have read a couple of tutorials on how to get Visual Studio to work the Uno directly, but ones like this article have lines in it such…
The Woo
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Should Serial communication occur at standard Baud Rates?

I am interfacing an ATMega8 microcontroller to my PC using a serial to USB converter. The program I use to receive data is MATLAB. Is it strictly necessary for me to send and receive data in standard baud rates for serial communication? Would it be…
Analon
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Baud rate setting for UART in LPC1788

I am working with UART of lPC1788,in that I did the following settings for PCLK as 12MHZ and baud rate as 115200 but while I am simulating this code the baud rate is not assigned as 115200 or approx. uint32_t uart0_init() { LPC_SC->PCONP…
Vignesh_Jay
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stm32f4 uart baud-rate setting?

Now I　have a stm32f4-discovery. I make a max232 for uart to connect stm32f4. And I use usb-rs232 to connect max232. I hope I can communicate stm32f4 and PC through uart. And I open putty in Linux. But I have a big problem about setting uart…
aaa SA
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how to configure the port for the baud rate to 9600 using cfsetispeed and tcsetattr command on linux?

I am using the following code now, and I am wondering where it is wrong. struct termios options; int fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY | O_NDELAY); fcntl(fd, F_SETFL, 0); tcgetattr(fd, &options); cfsetispeed(&options, B9600); tcsetattr(fd,…
Cacheing
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Find the serial port settings in Delphi

Hi I have the need to find the Baud rate and other settings for a serial port, Looking about on the web, it looks like I should be using GetCommConfig, This returns a TCommConfig record with what I assume is the data I need. The problem is the…
Re0sless
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I need to find the baud rate a software uses to display some data

I have a software(.exe file) that runs and captures data on RS485 link. I am unable to determine the baud rate at which it is capturing data. Have tried all basic baud rates from 1600-9600 and above that too but all I receive is garble data. Any way…
Kanishk Chaudhary
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App freezes when wrong Baud Rate Selected c#

When I go into the serial settings, the serial connection is closed. If I select the wrong baud rate for the serial coming in the app freezes and I can't even get any debug since it is still working but I am unsure what it is doing. Ultimately, my…
Kyle King
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Linux read, write Arduino serial

I'm trying to write to an Arduino serial from a c++ program. How do I set the baudrate in the C++ program? The communication seems to work, when the arduino is set to 9600, but fails when I change it, as expected.(so 9600 is the default?) Using the…
ffoska
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Auto detect budrate serial stm32

IHello :) I have a STM32L031K6 and i use CubeMx; I want some auomatiser my reception function is adding automatic detection of transmission speed (baud rate) how I can do. i not find a code example online how to do it :/ Usart.c…
Ibrahim
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Non-standard serial baud rate of 62,500 on a PC

I am looking for a way of using a baud rate of 62,500 (8N1) on a windows PC on a serial port or USB->serial adapter to communicate with an older piece of hardware that uses this speed. Can this be done via code or is it a hardware solution?
Bill H
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vb.net erros when trying to access com port with baud rate of 921600

I am trying to access a com port using USB to UART for a throughput test on a device and a requirement of this is a Baud rate of 921600. I am using vb.net and a Baud rate of 460800 works just fine. The connection works just fine on TeraTerm at a…
Victor.Wiedemann
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How to set a baud rate to 10400

Is it possible to set the baud rate to 10400? (Using .Net)
ajax
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Reverse engineering an aircon controller. Need help figuring out a checksum

So I have been reverse engineering my aircon controller from around 2001, It uses a baud rate of 300 and sends the same packet of 6 bytes 3 times per transmission. the data seems straightforward, however i cannot figure out how the last byte is…
Tom Merry
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