baud-rate

I am trying to use PHP to send text to an LED sign so I can send support ticket numbers to it. The sign itself is a piece of work; it came from eBay and is poorly made with almost no documentation. After fiddling with it for a while, I was able to figure out the way it expected stuff to be sent to it and that the baud rate is 28800. I already know how to communicate with stuff like this using PHP, but I don't know how to change the baud rate to something nonstandard. I've tried other baud rates, and haven't been able to get it to work. You might want to look into the setserial command in Linux

Is it possible to set the baud rate for Macs in a terminal? If yes, how to set the baud rate in terminal through the terminal? I am trying to talk to the Mac using an Arduino (open source microcontroller), an XBee (wireless communicator) to type in the terminal through the serial monitor. The only problem I am having is the baud rate of the serial monitor and terminal are different. I can easily change the baud rate for the serial monitor in the Arduino, but I do not know what the baud rate is for the terminal in Mac. jon911 On Mac OS, stty seemingly can only change terminal settings for an

I am trying to talk with hardware device through virtual COM port. Host computer is PC Windows OS PC. Device is working with 921600 baud rate. This code works: DCB dcb; ... dcb.BaudRate = CBR_115200; SetCommState(hPort, &dcb); Once I change baud rate: dcb.BaudRate = 921600; SetCommState fails with last error 0x57 (parameter is incorrect). Does this mean that Windows API prevents any baud rate except predefined values? Or maybe, virtual COM port may be configured to allow this baud rate? Virtual COM port is part of CameraLink connection. I am talking with CameraLink board vendor. But I need to

I am testing the sending and receiving programs with the code as The main() function is below: #include "lib.h" int fd; int initport(int fd) { struct termios options; // Get the current options for the port... tcgetattr(fd, &options); // Set the baud rates to 19200... cfsetispeed(&options, B9600); cfsetospeed(&options, B9600); // Enable the receiver and set local mode... options.c_cflag |= (CLOCAL | CREAD); options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; // Set the new options for the port... tcsetattr(fd, TCSANOW, &options); return 1;

I have a similar problem to the following link. How to change baud rate without closing the connection? . But i use C# in stead of java. I am beginning with baud rate 300. Then after a hand shake i have to change my baud rate to 4800. I send a command to the device to do this. And I change my serialport's baud rate. After that i can never continue the communication with the device. (If i stay in 300 baud and send command to the device for 300 baud i can continue the communication) I have a third party software which also reads from this device. I am listening the port when that software is

I am really having hard time understanding the difference. Some say they are same, while others say there is a slight difference. What's the difference, exactly? I would like it if you explained with some analogy. Bits per second is straightforward. It is exactly what it sounds like. If I have 1000 bits and am sending them at 1000 bps, it will take exactly one second to transmit them. Baud is symbols per second. If these symbols — the indivisible elements of your data encoding — are not bits, the baud rate will be lower than the bit rate by the factor of bits per symbol. That is, if there are

FINAL UPDATE It was our firmware the whole time. Embarrassing to a degree, but I'm happy we can move forward and I can put learning Java off for another day. My answer is below. UPDATE So I have more or less given up on this. I think it is a bug that goes down to the API but I have neither the time, resources nor skill-set to get to the bottom of it. I think there exists some hardware to whom Windows just gives the middle finger. I have downloaded Eclipse, switched to Java and will try to see if that works. If not, you'll see me back here. However, I would absolutely love to solve this and so