lifeforms

October 27, 2011

Ошибка найдена. Инициализация /dev/ttyr00 должна быть в raw режим.

options.c_oflag &= ~OPOST;

October 27, 2011

ОС: Linux linuxhost 2.6.38.6-26.rc1.fc15.i686.PAE #1 SMP Mon May 9 20:36:50 UTC 2011 i686 i686 i386 GNU/Linux

---------------------------------------------------------------------------------------------------------

Драйвер Moxa NPort5150:

Product: NPort Linux Real TTY Driver (V2)

Version: 1.17.3 Build 11060916

Date: 06/09/2011

Company: Moxa Inc.

Release Note:

=============

ver1.17.3 Build 11060916

1. Improve: Support Linux Kernel up to 2.6.39

--------------------------------------------------------------------------------------------------------

Простейшая программа отправки в устройство /dev/ttyr00 пропущу открытие дескриптора инициализацию и т.д.:

unsigned char buff[] = { 0x02, 0x03, 0x00, 0x43, 0x00, 0x01, 0xff, 0xff };

write(fd, buff, 8);

Отправляем пакет:

0x02 0x03 0x00 0x43 0x00 0x01 0x75 0xED

ответа от устройства нет.

tcpdump -w filename.dump ip host moxahost

tcpdump -r filename.dump -nn -xx

XX:XX:XX.090565 IP linuxhost.50463 > moxahost.950: Flags [P.], seq 3160517789:3160517797, ack 1810504621, win 14600, length 8

0x0000: 0090 e815 493a 0050 5683 001f 0800 4500

0x0010: 0030 0af2 4000 4006 b9ad c0a8 fa76 c0a8

0x0020: fa60 c51f 03b6 bc61 ac9d 6bea 1bad 5018

0x0030: 3908 6500 0000 0203 0043 0001 55cd

Разница в последних цифрах посыла на -32.

Отправляем пакет:

0x02 0x03 0x00 0x43 0x00 0x01 0x00 0x00

tcpdump -w filename.dump ip host moxahost

tcpdump -r filename.dump -nn -xx

XX:XX:XX.090589 IP linuxhost.50463 > moxahost.950: Flags [P.], seq 3160517789:3160517797, ack 1810504621, win 14600, length 8

0x0000: 0090 e815 493a 0050 5683 001f 0800 4500

0x0010: 0030 0af2 4000 4006 b9ad c0a8 fa76 c0a8

0x0020: fa60 c51f 03b6 bc61 ac9d 6bea 1bad 5018

0x0030: 3908 6500 0000 0203 0043 0001 0000

Отправляем пакет:

0x02 0x03 0x00 0x43 0x00 0x01 0xFF 0xFF

tcpdump -w filename.dump ip host moxahost

tcpdump -r filename.dump -nn -xx

XX:XX:XX.090632 IP linuxhost.50463 > moxahost.950: Flags [P.], seq 3160517789:3160517797, ack 1810504621, win 14600, length 8

0x0000: 0090 e815 493a 0050 5683 001f 0800 4500

0x0010: 0030 0af2 4000 4006 b9ad c0a8 fa76 c0a8

0x0020: fa60 c51f 03b6 bc61 ac9d 6bea 1bad 5018

0x0030: 3908 6500 0000 0203 0043 0001 dfdf

Вопрос собственно вот в чем: Почему так?

Уточню что посыл не от балды это команда Modbus и последние значения для меня важны поскольку CRC16 это.

October 20, 2011

Добрый день,

Попробуйте последнюю версию драйвера, он поддерживает ядро до 2.6.39.

Где его взять?

Файлы приложены вроде API.

October 20, 2011

Установил на Fedora 8:

Linux linuxhost 2.6.23.1-42.fc8 #1 SMP Tue Oct 30 13:55:12 EDT 2007 i686 i686 i386 GNU/Linux

npreal2_1.14_build_07062310

Установка прошла успешно.

Однако ttyr00 нет в /dev/.

Сконфигурировал:

cat npreal2d.cf

#=========================================================#

# This configuration file is created by Moxa NPort #

# Administrator Program automatically, please do not #

# modify this file by yourself. #

#=========================================================#

ttymajor=33

calloutmajor=38

#[Minor] [serverIP] [data] [cmd] [FIFO] [sSL] [ttyName] [coutName]

0 192.168.250.96 950 966 1 0 ttyr00 cur00

Запустил:

mxloadsvr 0

mknod -Z system_u:object_r:tty_device_t -m 666 ttyr00 c 33 0

mknod -Z system_u:object_r:tty_device_t -m 666 cur00 c 38 0

Complete.

ps -ef|grep npreal2|grep -v grep

root 1959 1 0 10:54 ? 00:00:00 /usr/lib/npreal2/driver/npreal2d -t 1

Как пользовать? Хотел чтобы Perl script опрашивал, так даже minicom не видит:

minicom -p ttyr00

minicom: WARNING: configuration file not found, using defaults

Device /dev/ttyr00 access failed: No such file or directory.

October 19, 2011

/tmp/moxa/npreal2.c:728:5: error: ‘struct tty_driver’ has no member named ‘open’

/tmp/moxa/npreal2.c:729:5: error: ‘struct tty_driver’ has no member named ‘close’

/tmp/moxa/npreal2.c:730:5: error: ‘struct tty_driver’ has no member named ‘write’

/tmp/moxa/npreal2.c:731:5: error: ‘struct tty_driver’ has no member named ‘put_char’

/tmp/moxa/npreal2.c:732:5: error: ‘struct tty_driver’ has no member named ‘flush_chars’

/tmp/moxa/npreal2.c:733:5: error: ‘struct tty_driver’ has no member named ‘write_room’

/tmp/moxa/npreal2.c:734:5: error: ‘struct tty_driver’ has no member named ‘chars_in_buffer’

/tmp/moxa/npreal2.c:735:5: error: ‘struct tty_driver’ has no member named ‘flush_buffer’

/tmp/moxa/npreal2.c:737:5: error: ‘struct tty_driver’ has no member named ‘ioctl’

/tmp/moxa/npreal2.c:738:5: error: ‘struct tty_driver’ has no member named ‘throttle’

/tmp/moxa/npreal2.c:739:5: error: ‘struct tty_driver’ has no member named ‘unthrottle’

/tmp/moxa/npreal2.c:740:5: error: ‘struct tty_driver’ has no member named ‘set_termios’

/tmp/moxa/npreal2.c:741:5: error: ‘struct tty_driver’ has no member named ‘stop’

/tmp/moxa/npreal2.c:742:5: error: ‘struct tty_driver’ has no member named ‘start’

/tmp/moxa/npreal2.c:743:5: error: ‘struct tty_driver’ has no member named ‘hangup’

/tmp/moxa/npreal2.c:745:5: error: ‘struct tty_driver’ has no member named ‘wait_until_sent’

/tmp/moxa/npreal2.c:747:5: error: ‘struct tty_driver’ has no member named ‘break_ctl’

/tmp/moxa/npreal2.c:794:20: error: ‘struct file_operations’ has no member named ‘ioctl’

tty_driver.h:

struct tty_driver {

<------>int<--->magic;<><------>/* magic number for this structure */

<------>struct kref kref;<----->/* Reference management */

<------>struct cdev cdev;

<------>struct module<->*owner;

<------>const char<---->*driver_name;

<------>const char<---->*name;

<------>int<--->name_base;<---->/* offset of printed name */

<------>int<--->major;<><------>/* major device number */

<------>int<--->minor_start;<-->/* start of minor device number */

<------>int<--->minor_num;<---->/* number of *possible* devices */

<------>int<--->num;<--><------>/* number of devices allocated */

<------>short<->type;<-><------>/* type of tty driver */

<------>short<->subtype;<------>/* subtype of tty driver */

<------>struct ktermios init_termios; /* Initial termios */

<------>int<--->flags;<><------>/* tty driver flags */

<------>struct proc_dir_entry *proc_entry; /* /proc fs entry */

<------>struct tty_driver *other; /* only used for the PTY driver */

<------>/*

<------> * Pointer to the tty data structures

<------> */

<------>struct tty_struct **ttys;

<------>struct ktermios **termios;

<------>struct ktermios **termios_locked;

<------>void *driver_state;

<------>/*

<------> * Driver methods

<------> */

<------>const struct tty_operations *ops;

<------>struct list_head tty_drivers;

};

Вынесли const struct tty_operations *ops;.

Блин проще более ранний дистриб взять. Вопрос снят. Можно ветку удалить.

October 19, 2011

/tmp/moxa/npreal2.c:512:2: warning: initialization from incompatible pointer type [enabled by default]

/tmp/moxa/npreal2.c:512:2: warning: (near initialization for ‘mpvar_ops.put_char’) [enabled by default]

Эти ошибки исправил, tty.h прописано put_char должен возвращать int.

October 19, 2011

Версия Linux:

uname -a

Linux linuxhost 2.6.38.6-26.rc1.fc15.i686.PAE #1 SMP Mon May 9 20:36:50 UTC 2011 i686 i686 i386 GNU/Linux

Версия драйвера:

npreal2_1.14_build_07062310.tgz

Попытка собрать:

mxinst SP1

===============================================================================

MOXA NPort Server Real TTY Driver V1.14 Installation.

System Imformation: Kernel 2.6.38.6-26.rc1.fc15.i686.PAE; Machine i686.

===============================================================================

Tar files, please wait ... OK!

Building driver...

If you want to use secure communication with target,

you might choose [y] to enable the SSL function.

Note: This function support RealCOM with secure mode only.

Do you want to enable secure function? [y/N].

n

make -C /lib/modules/2.6.38.6-26.rc1.fc15.i686.PAE/build SUBDIRS=/tmp/moxa modules

make[1]: Entering directory `/usr/src/kernels/2.6.38.6-26.rc1.fc15.i686.PAE'

CC [M] /tmp/moxa/npreal2.o

/tmp/moxa/npreal2.c:512:2: warning: initialization from incompatible pointer type [enabled by default]

/tmp/moxa/npreal2.c:512:2: warning: (near initialization for ‘mpvar_ops.put_char’) [enabled by default]

/tmp/moxa/npreal2.c: In function ‘npreal_init_tty’:

/tmp/moxa/npreal2.c:595:5: error: implicit declaration of function ‘init_MUTEX’ [-Werror=implicit-function-declaration]

/tmp/moxa/npreal2.c:599:46: error: ‘proc_root’ undeclared (first use in this function)

/tmp/moxa/npreal2.c:599:46: note: each undeclared identifier is reported only once for each function it appears in

/tmp/moxa/npreal2.c:670:53: warning: operation on ‘tty_node->icount.dsr’ may be undefined [-Wsequence-point]

/tmp/moxa/npreal2.c: In function ‘npreal_init’: