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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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Transmission rate on BeagleBone Black to uSDcard

i did a lot of research, and i didn't find anything about the velocity/baudrate of the data transmission from the BeagleBone Black to the uSDcard, i have the microsdcard configured as extra storage(FAT32). I saw in the hardware schematic of the BBB,…
David Caniceiro
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Uart / GPS driver sample buffer overflow

I am trying the sample for the GPS driver with a raspberry pi 3 and the Ultimate GPS V3 breakout board. Here is the full source code: https://github.com/androidthings/drivers-samples/tree/master/gps The GPS board is connected following this…
Distwo
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Arduino Due with ESP8266 simple AT command

I have an Arduino DUE and want to connect it to an ESP8266 Board and then test the connection with a simple "AT" command on the serial command line. I have written a lot on the internet but there are so many different answers on this topic and none…
Kev1n91
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C# Serial Communications issues with Arduino

I have been struggling with commincations speeds with some code. So i want to increase the baud rate for both the code & Arduino. But if i leave the 9600 baud rate, the data stops sending & reciving properly. So i set up a simple test…
Tails270
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MCP2515 Baudrate Issue

I have to fight that problem for a long time now. There are 2 MCP2515 CAN Interface Chips connected to each other. The one is controlled by Arduino, the other one by STM32 board. Scheme: (-> := send) Arduino->MCP2515->MCP2515->STM32 If I set the…
ionman
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Having two baud rates in one arduino code

I have an arduino code for many different sensors connected to MEGA, one of them is the bluetooth, is that possible to make the bluetooth run with a different baudrate than the other sensors?
Hend
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What are N and M parameters in a Baud rate generator?

I'm trying to understand how an UART for RS232 works in HDL. It uses a baud rate generator which generates the especific baud rate you want, right? like 9600, 115200, ... This is the code where appears always in a Baud rate generator: module…
user204415
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Cannot connect to ESP8266 after serial speed change

After some trial and error, tonight my Arduino Uno began talking to an ESP8266 module, with the most common wiring, 3.3V power to the module from a well-sized external supply, direct connection of the 3.3V TX line, and a voltage divider to read from…
frank
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baudrate mismatch between AXI-Uartlite and Teraterm

I have built a simple Microblaze system on a Kintex 7 on Avnet's MMP2 board. I am using Uartlite (v2.0) IP in this system and communicate to a PC using Teraterm (v4.85). The baudrate for the Uartlite component must be fixed at a particular value at…
Vinay Madapura
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How to `cat' file in a specific baud?

I'm using uCsim to do unit test on SDCC projects. In uCsim/S51, you can simulate serial line traffic by s51 -s /dev/tty PROGRAM.ihx or s51 -S in=testdata.in,out=testdata.out PROGRAM.ihx In the latter form, the data is immediately sent to the…
Lenik
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What is the baudrate limit in the termios.h?

This is a quick snippet of code from a serial program I've been working with to interface with a microcontroller. The code has been verified to work but I want to add the global define to make the code more modular. The excerpt shown works, until I…
MaiSpy
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PIC16F1823 baud rate generator registers fail to be set

I have encountered a strange problem: I am trying to simply set UART baud rate on my PIC16F1823 in MPLABX just by writing some values to SPBRGH and SPBRGL. After seeing that UART communication doesn't really work, I checked in the debugger, that the…
jalooc
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Matlab- How to decrease time between two sent bytes on serial?

Hi everybody ! I have to sent a big amount of data on the serial port (from Matlab to Arduino) as fast as possible ( for on live application). In order to do that, I have changed my baudrate. On the oscilloscope, no problem ( even if I send at…
MathG38
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Can the baud rate corrupt an SD card?

I'm working with a team of developers on an Android media player device. We're having a very bad time because the SD cards are keep getting corrupted and we don't have a clue why. At random times (but after a few days of r/w cycles on them) they…
Bogdan R
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Configuring .NET SerialPort based off of a signaling rate of 38400 bit/sec

I am having trouble communicating with a serial device. I am having trouble determining with the baud rate should be. The documentation says signaling rate is 38400 bit/sec. Here is the documentation for the serial port. How does this translate to…
Paul Knopf
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