sprog-dcc : Message: Re: No loco detected

Tim,

The Hornby decoder is not compliant with the DCC standards and does not
issue the correct replies when programming. in effect you cannot read
any of the CVs and SPROG/DecoderPro will report "no loco". Anything you
try and write to the decoder should still be written OK but the only
way to verify is by running the loco.

Sorry, I can't help with the BR64. Have you tried both page mode and
direct mode?

Andrew

--- In sprog-dcc@..., "timhaledorset" <reichsbahn@...>
wrote:
>
> It seems that my Sprog2 set up is going through a phase of not
> detecting locos even though the Hornby pre-chipped loco is shuddering
> whilst the various changes are being read. Worse still it refuses to
> recognise anything on my my brand new Roco BR64.
>
> Any ideas?
>
> Tim
>

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It seems that my Sprog2 set up is going through a phase of not detecting locos even though the Hornby pre-chipped loco is shuddering whilst the various changes...

timhaledorset

Mar 18, 2008
5:36 pm

Tim, The Hornby decoder is not compliant with the DCC standards and does not issue the correct replies when programming. in effect you cannot read any of the...

andrew_croslanduk
andrew_crosl...

Mar 20, 2008
1:02 pm

What happens if I switch between direct and page mode?...

timhaledorset

Mar 20, 2008
4:56 pm

They are two different protocols for reading/writing decoders. Most modern decoeders support both but the specs are open to interpretation to some extent....

andrew_croslanduk
andrew_crosl...

Mar 21, 2008
7:52 pm

Andrew, ? I have been working with several of the newer MRC Sounder decoders and have noticed that when I try to program them with decoderPro and SPROG II USB,...

pdsteam@...
pdsteam

Mar 20, 2008
5:10 pm

in a situation such as you describe (and it has happened with other sound decoders besides the Sounder), if you go to the DecoderPro CV page and just do a...

J. Michael Hewitt
jmhewitt624

Mar 21, 2008
2:18 am

It sounds like the writes are occurring correctly but there is some issue with the acknowledgement. DecoderPro will retry accesses that it thinks have failed...

andrew_croslanduk
andrew_crosl...

Mar 21, 2008
7:57 pm

Andrew, Yes, your description was exactly correct. Thanks for looking into it. Once again, the only thing that is consistent is change. ;>) It's like ...

pdsteam@...
pdsteam

Mar 22, 2008
2:18 am

Andrew, It is my understanding the the MRC Sounder decoders do not support any kind of read back. I have both the 1662 and 1666 versions and cannot read CVs...

barry_draper

Mar 25, 2008
6:25 am

I understand that mrc states that readback is not supported but that being said I have 1663 and 1666 decoders and have no problem reading cv values with SPROG...

pdsteam@...
pdsteam

Mar 25, 2008
12:31 pm

Ah, but there's reading and there's reading. What with paged mode and two kinds of direct mode, and even then manufacturers interpreting the specs differently,...

andrew_croslanduk
andrew_crosl...

Mar 25, 2008
5:39 pm

I can understand the 1663 reading CVs since that includes a motor drive. I have been able to read CVs from an MRC 1634. I'll have to try reading from my 1666...

barry_draper

Mar 27, 2008
11:02 pm

The Hornby decoder is not compliant with the DCC standards and does not issue the correct replies when programming. in effect you cannot read any of the CVs...

timhaledorset

Mar 20, 2008
10:15 pm

... progamming ... Tim I have experienced a similar problem with a number of Bachmann 36-553 decoders (the only ones that I've used so far). Some seem to...

Dave Sims
dsimsj

Mar 25, 2008
8:12 pm

Well Tim, and how do you fare with those decoders using a different command station?> Maybe you need to consider a different acronym Basic Awful Cheap Hardware...

Bill Chown
orrrbrit2004

Mar 26, 2008
7:52 pm

I don't really care about the Bachmann decoder, it is the fact that the SPROG does not read my Roco BR64 that is worrying me. Now I have bought an NCE decoder...

timhaledorset

Mar 28, 2008
10:24 pm

Dave, I rely on my SPROG for programming as I find my Multimaus rather difficult to use. I bought an NCE decoder tester in order eliminate the possibility of...

timhaledorset

Mar 29, 2008
3:14 pm

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