Hello Michel,
On Mon, 24 May 1999, Michel wrote:
> Dear linux-hams,
>
>
> First of all, thanks for reading this message.
>
> Right now I'm using the amateur AX.25 software for Linux for about \half a
> year , with good results.
Same here, but some time longer then.
> I'm using a PA0HZP 'clone' which has up to 4 channels, although I only use
> 2 of them. To be precise, only the ports scc0 and scc2 are used, because
> the port scc1 is broken due to an electrical storm (If you found that my
> setup is strange :)
>
> But, I'm trying to set up a correct DCD coupling with the SCC driver
> from Joerg Reuter.
Are you sure using kernel 2.2.x ? ik know some bugs where fixed in 2.2.x
compaired to 2.0.x (because some of them ik fixed myself :)
> This allways fails, my 2 transmitters are allways
> sending independently, e.g. at the same time, no matter how I set up the
> z8530drv.conf.
Whith using 2.2.x no problem, my setup is:
never send togerther
send only when all channels are clear (software DCD)
> I furtunately do not have those strange 'lockups' of the driver (I mean:
> still receiving but no transmitting) since I use the z8530 driver compiled
> directly into the kernel. (At least, that solved it for me)
No problem like that, have you tried the compiletime delay ?
>
> The hardware I use:
>
> * Pentium 133MHz
> * PA0HZP Opto Coupled ESCC card with 2 x Zilog's Z85230 controller
> (The chips say: Z85230 10PSC ESCC 9649-GG)
> Current software setup:
>
> * Linux 2.0.35 (SuSE 5.3 with libc5)
> * z8530drv v2.4c
> * (ax25-utils-2.1.42a (Should have nothing to do with it))
Aha!
Eureka!
use z8530drv v3.x and kernel 2.2.x
> Some global configuration parameters from z8530drv.conf :
> ...
> escc yes
> vector 0x168
> special no
> option 0
> ...
>
> The port-specific parameters:
> e.g. /dev/scc0
> ...
> speed 1200
> clock dpll
> mode nrzi
> group 129 (201 Octal = 129 Decimal (says my calculator.... :-) )
A group bug was is 2.0.x, and i'm not sure it ever has been fixed in
2.0.latest
And I use :
group 193
for all active(grouped) ports, nonactive:
group 0
> softdcd on
>
> Of course, /dev/scc2 does have the same group as /dev/scc0.
> Indeed, I use the software DCD since I have 2 very simple modems attached
> to it (But reception and everything works good)
>
> Could it be the fact that I'm using the 2 controllers, instead of
> using scc0 and scc1 ? Since scc0 is from the first Z85230 and scc2 is from
> the second Z85230...? (just guessing)
No problem, using 3/4 ports here, _same_ opto controller
>
> Or do I have to use a different (global) parameter setting in my
> z85230.conf ? I don't use any options, nor the 'special' parameter, but I
> _do_ use the escc parameter, allthough 'Z85230' is not listed as 'escc'
> in de the documentation.
>
> I've played with the parameters, read the scc_eng.doc more than one time,
> but still it isn't working. Right now I remember that I had the same
> problem with the 'escc' driver in the JNOS package which I used 'ages ago'.
> On the other hand, with the escc driver in the package PE1CHL the DCD
> coupling worked fine.
>
> Now I sometimes loose transmitted frames, because another port was
> already transmitting and this has a lot of effect on the performance of a
> gatewayed connection. :-( But then I'm also glad my antenna switch has a
> hardware inbuild automatic PTT interrupt.. (totally home-brewed)
>
> I hope someone has the solution to this particular problem, allthough I am
> not a licenced HAM. I do my radio network experiments on the Citizens Band,
> which is legal here when using only 1200 bd (slow, but costless).
> And since Linux is the only flexible way to play with AX.25 & TCP/IP......
Same here, Delft.
>
> Thank's for reading, and thank's in advance for help.
>
>
> With kind regards,
>
> Michel.
>
>
> Michel - NL0BXR - a.k.a. The �pocalypsE - Boxmeer
>
> Email : [EMAIL PROTECTED]
>
> If I'm online, you could try:
> BBS : telnet://scoop.demon.nl:6300
> Node : telnet://scoop.demon.nl:3694
>
Arjan Filius
mailto:[EMAIL PROTECTED]
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Argh! All right, so how am I supposed to work with Linux when
everything's already been done?! Can't these people leave some
broken MSDOS like parts so there's problems left to solve!?....
