I try to communicate with a GSM modem, from C, for sending SMS.
I use standart AT-commands.
Working well with terminal.
There is no problem writing ti the port.
But when I try to read I only get a echo, I write "ATI" and get "ATI" back, I should get somthing like "SIEMENS 35 Terminal..." back.
We're running SCO Unix Openserver 5.05 and I'm having trouble with serial communication between the com2 serial port and a handheld device. Downloading data from Unix to the handheld works perfectly, but the other way around creates a major problem. I don't know whether it's a buffer overflow or... (1 Reply)
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)
Hi,
I am working with Sun Solaris 9 Sparc,Sun-Blade-100.In my application,I need to monitor the UPS using Serial port.
When I am using JRE 1.4 in my application,I am able to monitor it but when I am upgrading the JRE version from 1.4 to JRE1.6. I am not able to monitor the UPS.It is showing the... (1 Reply)
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)
Hello all.
I have an old computer with M$-DOS 7. I want to use it like a dumb terminal, with telnet. I need to connect it to my desktop These are my questions:
How can i configure the serial port on dos?
How can i telnet form dos to the serial port?
How can i set up a telnet server on the... (12 Replies)
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)
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)
hey frns pls help me out !!
i hav a code of c that i have to include in my project.
i am using a device (geomeda) that has unix based OS. it also support SIM card for connecting to server . I need to send SMS to user from this device..
below code is not working .. i am unable to send sms and the... (7 Replies)
hi, I've a problem on my C/C++ program with Posix Library.
I have to read data from the serial but I have incorrect data, in fact I get a bunch of zeros:
"2953.3174, 2785.2126, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0 , 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ,... (24 Replies)
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
LEARN ABOUT DEBIAN
baycom
BAYCOM(9) Kernel Reference Guide BAYCOM(9)NAME
baycom - amateur (AX.25) packet radio network driver for baycom modems
SYNOPSIS
#include <linux/baycom.h>
#include <linux/hdlcdrv.h>
DESCRIPTION
The driver currently supports three different modems: ser12, par96 and par97.
ser12
This is a very simple 1200 baud AFSK modem. The modem consists only of a modulator/demodulator chip, usually a TI TCM3105. The computer is
responsible for regenerating the receiver bit clock. The modem connects to a serial port, hence the name. Since the serial port is not used
as an async serial port, the kernel driver for serial ports cannot be used, and this driver only supports standard serial hardware (8250,
16450, 16550).
par96
This is a modem for 9600 baud FSK compatible to the G3RUH standard. The modem does all the filtering and regenerates the receiver clock.
Data is transferred from and to the PC via a shift register. The shift register is filled with 16 bits and an interrupt is signalled. The
PC then empties the shift register in a burst. This modem connects to the parallel port, hence the name.
par97
This is a redesign of the par96 modem by Henning Rech, DF9IC. The modem is protocol compatible to par96, but uses only three low power ICs
and can therefore be fed from the parallel port and does not require an additional power supply.
IOCTL CALLS
The ioctl calls follow the implementation in the hdlcdrv.
BAYCOMCTL_GETMODEMTYPE
returns the modem type (i.e. ser12 or par96) and the options in effect (currently only the source of the DCD signal)
BAYCOMCTL_SETMODEMTYPE
sets the modem type and the options. Only superuser can do this.
BAYCOMCTL_GETDEBUG
return some debugging values. Not always available.
SEE ALSO
baycom (9), soundmodem (9), linux/drivers/net/hdlcdrv.c,
AUTHOR
baycom was written by Thomas Sailer, HB9JNX/AE4WA, (t.sailer@alumni.ethz.ch).
Linux 2.1.x 2 October 1996 BAYCOM(9)