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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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libserial error: cannot set baud rate as 115200

I'm trying to communicate with an USB-uart module using Libserial. Following is my code for initial part: serial_port.Open("/dev/ttyUSB0"); if ( ! serial_port.good() ) { std::cerr << "[" << __FILE__ << ":" << __LINE__ << "] " << "Error:…
lanyusea
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Communicate over Comport on 14400 Baudrate in Java - Serial Communication

Hoping to find solution here. I have a controller which uses a App specific protocol over UART and this protocol works only at 14400 bps. I have to use java code to communicate with this controller over serial port. But i fount the API's i am using…
Abhi4ever
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adjusting the baud-rate of pic24

i have a device outputting an data with 19200 baud. The pic has been configured with SPBRG=12 BRGH=0 start and stop bits have been taken into account. Nevertheless the pic doesn't receive the correct data! The data sent has been verified with hyper…
Johannes Knust
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android bluetooth get Baud rate

Hi currently working on a project that is working over bluetooth. The device that I talk to has a couple of different modes. Each of these modes uses a different baud rate. I've used the bluetooth chat example for this project. My problem is as…
SatanEnglish
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How to Set Baud Rate 2.000.000 Using DCB Structure

How can i set the baud rate to 2MBaud in C source code on Windows / Visual Studio 2010. dcb.BaudRate = 2000000UL; //doesn't work. Data sending at least works, tested using a serial port monitor. My microcontroller and it's ftdi chip is also working…
Thomas
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data transfer speed variation on baud rate

I wanted to know if changing the baudrate of the serial channel would bring a noticeable increase in the data transfer(say I change the baudrate from 9600 to 115200)? I am confused because of the serial data transfer protocol.I doubt it would…
Deepak
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How can I determine the baud rate of my RFID reader?

When my RFID reader reads a tag, it shows me multiple information. I am aware that one tag is equivalent to one information. I believe that it is the baud rate. Correct me if I am wrong. Thanks. The baud rate that I have set is 9600. I have a long…
Genesis John Dagdag
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Baud rate setting for LP17XX micro controller

Hi am using LPC Xpresso software to write code for LPC17xx series of micro-controllers. I am stuck with setting the Baud rate for UART 2 am supposed to set 3360 as my baud rate. some one please help me on this issue.
user1116185
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Improve speed during Serial transfer

I'm using Serial to transfer scapy packets between two NanoPi (almost identical as Raspberry Pi). For that, I'm using the following Python code: import time import serial import threading from scapy.all import IP, ICMP # Craft ICMP…
Manitoba
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Read bytes with 921600 baud C#

I have to receive and process arrays of bytes with a bitrate of 921600 in real time via RS-422. I process about 3500 bytes at a time and my problem is that I lose about 2800 bytes later. I use: client.OnReceiving += new…
tony
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does serialport not return port open errors?

I intend to test all communication speeds, and stop at the highest. But I can't get information from the serialport to STOP/finish the cycle. clc; clear USB BaudRate=[115200, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 600, 300] i=0; do `i++ …
armando
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Incorrect UART receive message with 9600 baudrate

I am using a NUCLEO-G071RB. I implemented this modbus library: LINK. For testing I use ComTest Pro. Everything worked fine in the beginning. Then out of nowhere I started getting issues with 9600 baudrate. Some bytes get cut off and sometimes appear…
RTL
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LCD Screen stuck on UART Baud: 9600

I have a MSP chip and a LCD screen - throughout my code I output messages to my LCD screen. 80% of the time it works but if I do a power cycle the screen will get stuck on "UART Baud: 9600". I am not sure if there is something I am missing in the…
Georgem
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error: expected ';', ',' or ')' before numeric constant in Serial communication ATmega32

I am trying to connect a Bluetooth module through serial communication. But the error which is " error: expected ';', ',' or ')' before numeric constant" occurred on the line where I defined the baud rate. can not find where the error is. Help would…
Mihiranga Silva
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Difference between 1e12 and 1000000000000 in SystemVerilog

I'm trying to calculate the baud rate of the data transaction by capturing the simulation time of two signal changes. I couldn't get the correct baud rate computed until I changed the 1000000000000 to 1e12 for the numerator of the…
Shawn Khoo
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