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PDF TIP119-SW-82 Data sheet ( Hoja de datos )
| Número de pieza | TIP119-SW-82 | |
| Descripción | Six Channel 16 bit Quadrature Decoder Counter | |
| Fabricantes | TEWS TECHNOLOGIES | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TIP119-SW-82 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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The Embedded I/O Company
TIP119-SW-82
Linux Device Driver
Six Channel 16 bit Quadrature Decoder Counter
Version 1.0.x
User Manual
Issue 1.0.0
July 2007
TEWS TECHNOLOGIES GmbH
Am Bahnhof 7
Phone: +49 (0) 4101 4058 0
25469 Halstenbek, Germany Fax: +49 (0) 4101 4058 19
www.tews.com
e-mail: [email protected]
TEWS TECHNOLOGIES LLC
9190 Double Diamond Parkway,
Suite 127, Reno, NV 89521, USA
www.tews.com
Phone: +1 (775) 850 5830
Fax: +1 (775) 201 0347
e-mail: [email protected]
Free Datasheet http://www.0PDF.com
1 page  
2 Installation
The directory TIP119-SW-82 on the distribution media contains the following files:
TIP119-SW -82-1.0.0.pdf
TIP119-SW -82-SRC.tar.gz
Release.txt
ChangeLog.txt
This manual in PDF format
GZIP compressed archive with driver source code
Release information
Release history
The GZIP compressed archive TIP119-SW-82-SRC.tar.gz contains the following files and directories:
tip119/tip119.c
Driver source code
tip119/tip119def.h
Driver include file
tip119/tip119.h
Driver include file for application program
tip119/makenode
Script to create device nodes on the file system
tip119/Makefile
Device driver make file
tip119/example/tip119exa.c Example application
tip119/example/Makefile Example application make file
tip119/include/tpmodule.h Kernel independent library header file
tip119/include/tpmodule.c Kernel independent library source code file
In order to perform an installation, extract all files of the archive TIP119-SW-82-SRC.tar.gz to the
desired target directory. The command ‘tar -xzvf TIP119-SW-82-SRC.tar.gz’ will extract the files into
the local directory.
Before building a new device driver, the TEWS TECHNOLOGIES IPAC carrier driver must be
installed properly, because this driver includes the header file ipac_carrier.h, which is part of
the IPAC carrier driver distribution. Please refer to the IPAC carrier driver user manual in the
directory path CARRIER-SW-82 on the separate distribution media.
2.1 Build and install the device driver
Login as root
Change to the target directory
To create and install the driver in the module directory /lib/modules/<version>/misc enter:
# make install
For Linux kernel 2.6.x, there may be compiler warnings claiming some undefined ipac_*
symbols. These warnings are caused by the IPAC carrier driver, which is unknown
during compilation of this TIP driver. The warnings can be ignored.
Also after the first build we have to execute depmod to create a new dependency description
for loadable kernel modules. This dependency file is later used by modprobe to automatically
load the correct IPAC carrier driver modules.
# depmod –aq
TIP119-SW-82 - Linux Device Driver
Page 5 of 21
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3.3 ioctl()
NAME
ioctl() – device control functions
SYNOPSIS
#include <sys/ioctl.h>
int ioctl(int filedes, int request [, void *argp])
DESCRIPTION
The ioctl function sends a control code directly to a device, specified by filedes, causing the
corresponding device to perform the requested operation.
The argument request specifies the control code for the operation. The optional argument argp
depends on the selected request and is described for each request in detail later in this chapter.
The following ioctl codes are defined in tip119.h:
Symbol
TIP119_IOCX_COUNTERREAD
TIP119_IOC_COUNTERRESET
TIP119_IOCX_WAITFORINDEX
TIP119_IOCX_WAITFOROVERFLOWSW
TIP119_IOCX_WAITFOROVERFLOWHW
Meaning
Read Counter Value of specific channel
Reset all counter channels
Wait for Index interrupt
Wait for Software Counter Overflow
Wait for Hardware Counter Overflow
See behind for more detailed information on each control code.
To use these TIP119 specific control codes the header file tip119.h must be included in the
application
TIP119-SW-82 - Linux Device Driver
Page 11 of 21
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| PDF Descargar | [ Datasheet TIP119-SW-82.PDF ] | |
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