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RE: DSP-AX1


  • To: "'ukha_d@xxxxxxx'" <ukha_d@xxxxxxx>
  • Subject: RE: DSP-AX1
  • From: Mike Griffiths <mike@xxxxxxx>
  • Date: Fri, 8 Jun 2001 22:29:48 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

K

As you say IR can do most things with a Preamp in a good HA system

I chose to go down the serial control route for two reasons

1)       Some of the comands via IR are toggle commands

2)       I needed HV to know the state of the amp

By using the serial command I can report the state of the preamp

In my case this is needed as there are 3 aux switched outputs which feed the rest of the house.

 

 

Mike

 

Sent from Home

 

-----Original Message-----
From: Kenneth Watt [mailto:kennethwatt@xxxxxxx]
Sent: Fri 08 Jun 01 22:26
To: ukha_d@xxxxxxx Subject: RE: [ukha_d] DSP-AX1

 

Okay, I think I get the basic gist of the function of the serial port.
Basically, it controls all the functions of the amp through a standard RS232
using VB, fair enough, but I fail to see the point. Unless....

If the amp can be preset to certain configurations, volume, source, DSP mode
etc so its just a case of pressing a button on Pronto, sends an IR signal to
HV, HV boots the whole lot up and sets to a predetermined setting for say,
watching a DVD or suchlike. Even then, apart from the fact that the Pronto
can do this in an IR macro (as I have at the moment) apart from setting the
DSP mode, that is largely unused (Tim and I will probably agree that most
are a waste of effort) and setting the actual volume level to a preset which
is not possible via IR. Well that's not strictly true, it is but it's too
much hassle to be bothering with.

Actually the more I think about it the more possibilities there are with
this kind of setup, especially the switching of zones, which is a *very*
useful thing the way I have the system set up at the moment. Bummer that it
only switches the front stereo pair though and not the whole DD/DTS set from
one zone to another.

In the near future I am building a dedicated server for HA stuff and little
things like this can be played with...but I always have the laptop :)

I reckon I'll hook up the laptop and try some stuff that you guys suggest
and see what gets reported back from the amp to the PC and see if I can make
it do anything interesting. Should make for some late night fun when SWMBO
goes off to bed.

K.

-----Original Message-----
From:       Andy Powell [mailto:Andy@xxxxxxx]
Sent:      08 June 2001 20:30
To:      ukha_d@xxxxxxx
Subject:      RE: [ukha_d] DSP-AX1

Sorry just 2 points to add/ammend

When I say ASCII char n eg Send 7 (ASCII CHAR 7) I mean (in BASIC) CHR$(7)
(Just in case it wasn't clear). Also the "Turn volume up" bit should read
as below:

For example to turn the volume up:

Send STX (ASCII CHAR 2)
Send 0   (ASCII char 0)
Send 7   (ASCII Char 7)
Send 10  (ascii char 10)
Send 1   (ASCII CHAR 1)
Send 10  (ascii char 10)

Finally send ETX (ASCII CHAR 3)

The volume should turn up!

After you've sent this and the volume has turned up the unit should send
some more data back to the PC -  this is the REPORT part - tells you what
it just did.. I haven't looked at it yet.. more soon..

Andy


-----Original Message-----
From: "Andy Powell" <Andy@xxxxxxx>
To: ukha_d@xxxxxxx
Date: Fri, 08 Jun 2001 21:08:54 +0200
Subject: RE: [ukha_d] DSP-AX1

>
> Please bear in mind that this is my interpretation of what they are
> saying..and that this
> is all theoretical for me - I don't have a unit to test... unless....
> ;-)
>
> I may be able to knock together some VB code for you to do some of
> this..
> but not this weekend
> as it's the wife's birthday!!!
>
>
> 1. Connect up the Rx and your pc with proper cable.
> 2. Within a program (VB should work) open the COM port 9600, 8N1 and
> with
> HARDWARE hanshaking turned on.
>
> 3. To get a response from the unit send the following:
>
>       ASCII char 17
>
>       ASCII Char 17 is DC1
>
>       ASCII char 0
>       ASCII char 0
>       ASCII char 0
>
>       The 3 ASCII char 0 's are the timeout values, by sending 0's we
> set NO TIMEOUT.
>
>       ASCII char 3
>
>       ASCII char 3 is ETX
>
>
> This should send some data back ( the current configuration of the
> system)
>
> To read the current config:
>
> a. The first character will (should) be a DC2 (ASCII char 18)
>
> b. Then the model number of the unit responding 5 bytes (characters)
> long.
>
> c. Then the length of the data to follow 2 bytes (characters) long.
>
> The data will then follow (not clear if it ALWAYS will be 256 bytes
> long
> or as long as
> the length secified above in c. The values of the data will be as per
> the
> table on page 2.
>
> eg DT0 (or the first byte) will contain either a zero or a one. Zero
> meaning OK and 1 meaning BUSY
>
> The checksum is follows and an ETX (ascii Char 3) terminates the output
> from the RX
>
> The above part is the initial communications that MUST take place first
> of all. Then when you
> want to issue a command:
>
>
>
>
> 0 = Command that would be on remote control
> 1 = Command (???)
> 2 = System Command
>
>
> For example to turn the volume up:
>
> Send STX (ASCII CHAR 2)
> Send 0   (ASCII char 0)
> Send 7
> Send 10  (ascii char 10)
> Send 1
> Send 10  (ascii char 10)
>
> Finally send ETX (ASCII CHAR 3)
>
> The volume should turn up!
>
> Andy
>
>
> > -----Original Message-----
> > From: "Kenneth Watt" <kennethwatt@xxxxxxx>
> > To: "UKHA" <ukha_d@xxxxxxx>
> > Date: Fri, 8 Jun 2001 08:33:09 +0100
> > Subject: [ukha_d] DSP-AX1
> >
> > > Phil,
> > >
> > > I got the info on the DSP-AX1's serial port and it looks as if it
> is
> > to
> > > remotely control the amp through a standard RS232, but the stuff
> they
> > > have
> > > sent me is a bit non-descript. There is a command set for the amp
> via
> > > the
> > > port as well as the how-to bit in it, only a few pages but,
> frankly,
> > I
> > > cannot fathom what they are on about. But then, I am not
> experienced
> > > with
> > > this kind of stuff.
> > >
> > > Do any of you electronics/PC gurus fancy a try at what it does, if
> so
> > > I'll
> > > scan this lot and mail it to you?
> > >
> > > K.
> > >
> > >
> > >
> > > ____________________________________
> > > Automated Home UK
> > > http://www.automatedhome.co.uk
> > > ____________________________________
> > >
> > > Your use of Yahoo! Groups is subject to
> > > http://docs.yahoo.com/info/terms/
> > >
> > >
> >
> >
> > --- Tag-it! v2.0 (c) Andy Powell ,1998,1999,2000...and beyond..
> >
> > GYPSY DWARF ESCAPES JAIL: Small Medium at Large.
> >
> >
> >
> >
> >
> > ____________________________________
> > Automated Home UK
> > http://www.automatedhome.co.uk
> > ____________________________________
> >
> > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> >
> >
> > _________________________________________________________
> > Do You Yahoo!?
> > Get your free @yahoo.com address at http://mail.yahoo.com
> >
> >
> >
> >
> > ____________________________________
> > Automated Home UK
> > http://www.automatedhome.co.uk
> > ____________________________________
> >
> > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> >
>
>
> --- Tag-it! v2.0 (c) Andy Powell ,1998,1999,2000...and beyond..
>
> The best way to save face is to keep the lower part shut.
>
>
>
>
>
> ____________________________________
> Automated Home UK
> http://www.automatedhome.co.uk
> ____________________________________
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>


--- Tag-it! v2.0 (c) Andy Powell ,1998,1999,2000...and beyond..

Adam was created before Eve to give him a chance to say something.





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