[mythtv-users] Serial DCT Control (dct2224/dct2524)

Chris myth at phresh.net
Sun Dec 18 19:02:42 EST 2005


Any suggestions on checking #1? The cable is a straight through.

-C

On Sun, 2005-12-18 at 17:59 -0600, Greg Oliver wrote:
> I don't have any serial controlled devices, but that sound like either:
> 
> 1.  You do not have your serial port configured correctly in the kernel,
> or
> 
> 2.  The pin-out on the cable is wrong.
> 
> It appears to not be communicating at all from the messages.
> 
> On Sun, 2005-12-18 at 16:53 -0700, Chris wrote:
> > I've tried that previously, here's what I get:
> > 
> > sudo ./channel -vv
> > Attempting to initialize DCT
> > SENT: type 0x70, len 2, id 0x04, seq 0x03
> > Serial timeout
> > No response to packet
> > No response to init_1; trying to continue
> > SENT: type 0x78, len 3, id 0x04, seq 0x03
> >       data 0x00
> > Serial timeout
> > No response to packet
> > No response to initialize_2
> > Initialization failed
> > Attempting to initialize DCT
> > SENT: type 0x70, len 2, id 0x04, seq 0x03
> > Serial timeout
> > No response to packet
> > No response to init_1; trying to continue
> > SENT: type 0x78, len 3, id 0x04, seq 0x03
> >       data 0x00
> > Serial timeout
> > No response to packet
> > No response to initialize_2
> > Initialization failed
> > Attempting to initialize DCT
> > SENT: type 0x70, len 2, id 0x04, seq 0x03
> > Serial timeout
> > No response to packet
> > No response to init_1; trying to continue
> > SENT: type 0x78, len 3, id 0x04, seq 0x03
> >       data 0x00
> > Serial timeout
> > No response to packet
> > No response to initialize_2
> > Initialization failed
> > Attempting to initialize DCT
> > SENT: type 0x70, len 2, id 0x04, seq 0x03
> > Serial timeout
> > No response to packet
> > No response to init_1; trying to continue
> > SENT: type 0x78, len 3, id 0x04, seq 0x03
> >       data 0x00
> > Serial timeout
> > No response to packet
> > No response to initialize_2
> > Initialization failed
> > Attempting to initialize DCT
> > SENT: type 0x70, len 2, id 0x04, seq 0x03
> > Serial timeout
> > No response to packet
> > No response to init_1; trying to continue
> > SENT: type 0x78, len 3, id 0x04, seq 0x03
> >       data 0x00
> > Serial timeout
> > No response to packet
> > No response to initialize_2
> > Initialization failed
> > Communication failed after 5 tries
> > 0
> > [mythtv at mitch dct-channel]$
> > 
> > 
> > 
> > On Sun, 2005-12-18 at 15:40 -0800, Ian Forde wrote:
> > > On Sun, 2005-12-18 at 16:31 -0700, Chris wrote:
> > > > Can you be more specific please?
> > > > 
> > > > /usr/share/doc/mythtv-0.18.1/contrib
> > > > [mythtv at mitch contrib]$ ls
> > > > 6200ch.c                        myth_archive_job.pl
> > > > 6200ch-README                   mythencode.pl
> > > > change-channel-lirc.pl          mythlink.sh
> > > > change-channel-lirc.sh          mythmail
> > > > dct2000serial.tar.gz            mythmaillog.pl
> > > > dct-channel                     mythname.pl
> > > > etc.init.d.mythbackend.lsb      mythnotify
> > > > etc.rc.d.init.d.mythbackend     myth.rebuilddatabase.pl
> > > > etc.security.msec.perm.local    README.for.mythencode.and.mythname
> > > > etc.sysconfig.mythbackend       temp
> > > > mandrake91.etc.sysconfig.lircd  trailer.pl
> > > > master_iconmap.xml              trailer.pl.README
> > > > mkiconmap.pl                    trailer.pl.svnfixes
> > > > mplayernetwork.pl               tsc-calibrate.c
> > > 
> > > dct-channel
> > > 
> > > 	-I
> > > > 
> > > > On Sun, 2005-12-18 at 15:27 -0800, Ian Forde wrote:
> > > > > On Sun, 2005-12-18 at 15:45 -0700, Chris wrote:
> > > > > > I've been trying for some time now to get serial channel changing
> > > > > > working, hopefully someone here can provide me with some insight into
> > > > > > the whole problem.
> > > > > > 
> > > > > > I've got the following:
> > > > > > 2x Motorola DCT-2224, firmware version: 7.93
> > > > > > 1x Motorola DCT-2524, firmware version: 2.54
> > > > > > 
> > > > > > I've tried a few different scripts to just try and change the channel
> > > > > > for now, none of which seem to work. When I connect the serial port of a
> > > > > > windows box to these DCTs, hitting enter results in gibberish coming
> > > > > > back from the DCT, followed by the f/w version. I assume this is some
> > > > > > sort of menu prompt (VxWorks?), the reason I assume this is because when
> > > > > > I go through the alphabet on the 2524, different keys produce different
> > > > > > outputs. Seeing as I get gibberish from all three is it safe to assume
> > > > > > that their serial ports are enabled?
> > > > > > 
> > > > > > When I run the serial cable from the FC4 box to the windows box and run
> > > > > > the python scripts, I do get output over in Hyperterm, so it looks like
> > > > > > I'm sending the data out.
> > > > > > 
> > > > > > I remember reading in one of the python scripts that it wanted v2.2, but
> > > > > > on my new FC4 box, I have python 2.4 installed, should this be an issue?
> > > > > 
> > > > > Mmm... Just took a look at it - I haven't used (or even looked at) the
> > > > > code in a while.  Python 2.4 is definitely going to be a problem, IMHO.
> > > > > I remember having issues with Python 2.3 as well... Best bet is to use
> > > > > the C code in contrib/ instead...
> > > > > 
> > > > > > I seem to be able to get everything else working except serial channel
> > > > > > changing, so hopefully someone will be able to help me out.
> > > > > > 
> > > > > > Thanks,
> > > > > > -Chris
> > > > > > 
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