On Tue, 05 Sep 2000, you wrote:
> Small numbers of cycles are not possible. But usually, the number of
> cycles needed is about 50 or 100.
JoyNet singal propagation doesn't need waits that long. On 3.5MHz I got
speeds of about 3.5 kilobyte per second, that is 3500*8=28000 bits per
second, which is 125 clocks for a total 1-bit cycle (data + ack). Given the
fact that there are quite a few instructions executed for every bit, there is
hardly any waiting at all.
> Around those numbers any number of
> cycles is possible. Fine grained control would be large, but not
> impossible (without self-modifying code).
OK, it would be possible. But not elegant.
> Adriano wrote that he would like someone to write some code to use joynet
> in uzix. I would like to do it, when the protocol is finished. If anyone
> else wants to do it (or doesn't want me to do it :P ), let me know, since
> I could use my time on other things as well.
I could do it, but I have too many projects already, so if you are willing
to, I prefer that you do it.
> I would also like to write a network driver for linux, so you can connect
> it to a router as well and connect the internet and all that.
For Linux, the best solution would be to write a serial driver for JoyNet.
Then pppd can be used to connect to UZIX and you can use the existing PPP
network device.
You can also make a user-mode solution, that sends stdin over JoyNet and
sends JoyNet input to stdout. That program can then be connected to pppd
using pipes. It's less flexible than a kernel driver, but it's also easier to
write and won't crash your system if it's buggy. It can be a good
intermediate step towards a kernel driver.
> > > Hmm, ok. So the parent must be named in every document. By the way I
> > > don't keep my old versions of it and I don't expect others to. There is
> > > no archive of them, which makes it a bit useless, since you cannot see
> > > the tree anyway.
> >
> > There is the mailinglist archive on msxnet.org...
>
> But I don't post the document to the mailinglist every time I change it.
It's doesn't matter what kind of version system you use personally. The
proposed versioning system is only intended for published documents. So it
should refer to the last *published* parent document.
Bye,
Maarten
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