Sponsored Content
Full Discussion: Writing to a Serial Port
Top Forums Web Development Writing to a Serial Port Post 302925717 by Meow613 on Wednesday 19th of November 2014 12:31:16 AM
Old 11-19-2014
The solution -

Once I added the code
Code:
system("stty 9600 cs7 -parodd -cstopb < /dev/ttyS0");

Minicom should NOT be running since it will conflict with the C program.

The following is probably obvious to the regulars on this forum, but for the newbies [like me] it was not...

Code:
$v=shell_exec('/var/www/scale7');
echo $v;

w/o the echo statement, output from the C program will not be shown.

MUCH THANKS TO ALL FOR THE EXCELLENT HELP

Last edited by Meow613; 11-19-2014 at 01:33 AM.. Reason: Correction
 

10 More Discussions You Might Find Interesting

1. Linux

urgent......Serial port

I think my serial port(on board) is not working ...... because when I am running same code on two machines its working good....but when my system comes into picture ....it doesnt show any output comming from serial port.......... can anybody tell me how to configure my serial port.........or to... (16 Replies)
Discussion started by: arunchaudhary19
16 Replies

2. Solaris

Serial port not found

Hi, I am working with solaris 9,SUN-Blade-100 and I want to communicate with the Serial port.To check whether the port is working or not.I write code and when I execute the file,then I got the output-- According to this,serial port is not found.can anyone please tell me how to configure the... (1 Reply)
Discussion started by: smartgupta
1 Replies

3. Programming

How to tell if a string to serial port has been sent

I have a need to determine when a string has been completely sent via a serial port from a standard 'C' application. The code is as follows: SerialPort_Send = open (pPortString, O_WRONLY | O_NOCTTY | O_NONBLOCK); write (SerialPort_Send, pCommandString, strlen (pCommandString)); ... (2 Replies)
Discussion started by: ExDes
2 Replies

4. AIX

Serial port in AIX

Hi, How can i configure my modem in AIX thru serial port (sa0-->tty0) I have two port serial card configured as sa0 I created tty1 which port is tty0 and which port is tty1 how can i know?? (1 Reply)
Discussion started by: pchangba
1 Replies

5. UNIX for Dummies Questions & Answers

Missing serial port

A neighbour's Ubuntu 10.04 machine has five serial ports, one on the motherboard and four on a PCI card. However, only four cards are showing: # dmesg | grep tty console enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ... (2 Replies)
Discussion started by: dotancohen
2 Replies

6. Shell Programming and Scripting

Need help with serial port

Hi, I have a external board connected to my serial port. I need to execute "shutdown -r now" command when system boot up. When system boots up it requires a username ans password. Then I need to run my command. I can use rc script but that is rebooting system before it asks for username and... (0 Replies)
Discussion started by: charlie.arya
0 Replies

7. Solaris

How to enable Serial port on ILOM, when Network Port is enabled in parallel

Hi Everyone, In my environment, I have few T5220. On the iLOM Management Card, I have both Network and Serial port are cabled, I don't have any issues while I try to connect using Network Management port, but when I try to connect the serial port for the same server which is actually connected... (3 Replies)
Discussion started by: bobby320
3 Replies

8. Shell Programming and Scripting

reading from and writing to serial port

hello all, please any one can provide me the shell script to write data to /dev/ttyS1 and read responce from /dev/ttyS1 and compare the responce to some string .. thnxx ---------- Post updated at 03:35 PM ---------- Previous update was at 11:46 AM ---------- any body help me.. how do i... (1 Reply)
Discussion started by: yashwantkumar
1 Replies

9. Web Development

Setup Serial Port

I need to set a serial port to 9600 7E1. How do I accomplish this? I've tried every combination, with no luck. (6 Replies)
Discussion started by: Meow613
6 Replies

10. Solaris

Cabling and adapters to communicate to service processor serial port from Windows PC with USB port.

Hello, I have an unloaded T5140 machine and want to access the ILOM for the first time and subsequently the network port after that., and then load Solaris 10 the final January 2011 build. The first part is what confuses me -the cabling. I am coming from a Windows machine (w/appropriate... (5 Replies)
Discussion started by: joboy
5 Replies
IRSEND(1)							   User Commands							 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.9.0-pre1 October 2010 IRSEND(1)
All times are GMT -4. The time now is 08:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy