Stack Overflow
Stack Overflow

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.

211 questions
0
votes
3 answers

How do I configure the baud rate of the NEO-6M GPS on TTGO T-Beam?

I want to set the baud rate of the Neo 6M GPS Module to 115200 or a higher value. I'm building a time messurement system where it simply takes to long to recive the Nema sentence with the standart 9600 Baudrate. I use this board. I did a scatch in…
blablabla
  • 1
  • 1
0
votes
0 answers

RFID reader port settings

I'm using an RFID reader connected to my computer over RS232 to usb port. It is using COM3 port with default settings (9600, 1 stopbit, no parity etc). After scanning a test card it gives me a nonesensical response, something like ··½w»··{íë I think…
Mrky
  • 3
  • 4
0
votes
0 answers

Cannot get serial info: Innapropriate ioctl for device

Code: #!/usr/bin/env bash BASEBPS=24000000 [ "$2" = "" ] && { echo 'use args '; exit; } dev=$1 bps=$2 setserial $dev divisor $[ $BASEBPS / $bps ] spd_cust stty -F $dev 38400 2> /dev/null Execution: ~$ sudo…
Luiz Henrique
  • 1
  • 1
0
votes
0 answers

How to set the baud rate of non-serial ttys?

A bit of a strange question here, but I'm wondering if there's any standard way to set the baud rate of non-serial interfaces, e.g. an SSH session to a Linux machine? There are lots of examples of setting the baud rate for serial ttys in Linux, such…
InterLinked
  • 1,247
  • 2
  • 18
  • 50
0
votes
0 answers

STM32F04xx UART transmit unreadable chars when HAL_Delay is set higher than 90 milliseconds

I'm working on transceiving data on stm32F04xx. When I transmit data from the MCU at lower speed, it looks like if the baudrate was wrong and I get a bunch of question marks. When I increate transmission speed. I can read the data I'm sending. I've…
Ahmed Jalal
  • 11
  • 1
  • 4
0
votes
1 answer

Bridging two serial devices using Arduino. Baud rate mismatch

I am receiving data from a GP20U7 GPS unit at 9600 (NMEA sentence bursts) that I need to forward to NMEA183 network at 4800. I thought that mismatch being not too big, and the NMEA data coming in bursts, internal UART buffers will be able to handle…
kiero
  • 121
  • 1
  • 7
0
votes
1 answer

Cannot change baud rate in C# even if the port is closed and reopened after setting new baud rate

I have a similar question in the forum. Change baud rate in C# without closing connection . In that question i asked how to change the baud rate without closing the port. Someone suggested me to close and reopen the port but i already tried that…
Ferda-Ozdemir-Sonmez
  • 674
  • 2
  • 13
  • 38
0
votes
0 answers

Maxing out the Serial.write() Data Transfer Speed of the Arduino Nano 33 BLE Sense

Please follow the steps outlined in this discussion if you would like to run the following sketch yourself as Serial.flush blocks forever without the correct patch. The current Arduino release implements these changes but we can't download the new…
Landon
  • 528
  • 2
  • 4
  • 22
0
votes
0 answers

CH340 with custom baud rate for Diesel Heater and Raspberry Pi

Is there a way (or trick) to set a CH340 to 25000 baud on Linux? If not: Is there a better chip which is able to do that 25000 baud (no FTDI please)? Is there a completely different and better way to achieve my goal (see below)? Background: I…
muebau
  • 152
  • 7
0
votes
1 answer

How to change the BaudRate of SIM 7600EI while connecting with arduino UNO?

I am working on an Arduino UNO based project that requires the SIM 7600EI module, but the problem is that the baud rate I want to work with is different than the baud rate of SIM 7600EI. So how can I change the baud rate of SIM 7600EI. I am using…
Tom Shaw
  • 139
  • 12
0
votes
1 answer

Windows CMD - Find current baud rate of COM port

I am trying to parse the out put of MODE command in command prompt and assign it to a variable. The out put of mode is as shown below, PS C:\Users\test> mode %COMPORT% Status for device COM5: ----------------------- Baud: 9600 …
Jimson James
  • 2,937
  • 6
  • 43
  • 78
0
votes
0 answers

C# serial port reading data speed is same at 9600 or 115200 baud rate

I am a beginner at C# and would like some advice on how to solve the following problem: My main code include 2 thread, first thread is for sending and receiving data and second thread is just for plotting chart and label of calculated values. First…
mrkefca
  • 55
  • 8
0
votes
0 answers

Continuous UART transmission RS-232 at high baud rate

I have an MCU sending out a series of 14 byte UART frames (using DMA) via RS232 at a high frequency of 8KHz. I've configured the baud rate at both ends to 1843200. I'm using FTDI TTL-232R-3V3 cable supporting upto 3Mbaud. Each 14-byte frame holds a…
WilliamR
  • 1
0
votes
1 answer

How to set ATMEGA64a-au USART speed to 115200?

As the title impplies, I've ATMEGA64a-au and 12mhz crystal, I set the baud rate to 9600 by these codes: #define F_CPU 12000000UL #define FOSC 12000000 // Clock Speed #define BAUD 9600 #define MYUBRR FOSC/16/BAUD-1 .. void USART0_Init( unsigned…
malloc
  • 604
  • 10
  • 18
0
votes
0 answers

Why is the baud rate on my port automatically getting updated to match the one on my device?

I am making a C# application that talks to a hardware device using the .NET System.IO.Ports.SerialPort interface (the device is connected to the USB port on my laptop using a serial -> USB converter) and one of the steps my application needs to do…
speedfranklin
  • 126
  • 1
  • 8
1 2 3
…
14 15