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From: BruceMcF on 5 May 2008 13:34
On May 5, 10:57 am, Dragos <mglad...(a)gmail.com> wrote:
> > You mean, include some subset of the DC2N system?
> >http://www.luigidifraia.com/c64/dc2n/index.html

> It would be nice if that device were actually available. it sounds
> great, I am sure the 10 people in the world that get one will be
> thrilled..

Yes, but I would want something that is, on the one hand, a small
subset of the system and, on the other hand, has add'l capabilities.

I'd be more than happy with an ability to load precisely one file as a
tape file, and then use that to boot-strap the rest of the system. But
it'd be faster to just switch over to a bit-banged SPI system to
access the SD directly, than to use the boot-strap to go over the IEC.

If the desire is to auto-boot over the IEC on reset, I maintain that
the most direct route to that end goes through the cartridge port. A
single chip would be more than enough to detect that there has been a
reset, bring up a short auto-start sequence that does the equivalent
of

LOAD"*",8,1:RUN

and then latch into pass through mode. Its only the cartridge select
line that has to be handled, plus 8 tri-stated data lines, plus as
many address lines are required to span the auto-boot routine.
From: christianlott1 on 5 May 2008 14:09
On May 5, 12:34 pm, BruceMcF <agil...(a)netscape.net> wrote:
> On May 5, 10:57 am, Dragos <mglad...(a)gmail.com> wrote:
>
> > > You mean, include some subset of the DC2N system?
> > >http://www.luigidifraia.com/c64/dc2n/index.html

No, I meant:

http://www.ktverkko.fi/~msmakela/8bit/c2n232/index.en.html

I have the hardware adapter for this I just haven't even tried it
because my computer is such a pos when it comes to the serial port. I
have an rs232 cart I put together a driver for. It worked fine for
awhile. Then, since my xp machine won't have it I gave up improving
the driver. I'm not about to reboot xp every time I want to use the
rs232 cart.

From: BruceMcF on 5 May 2008 14:46
On May 5, 2:09 pm, christianlott1 <christianlo...(a)yahoo.com> wrote:
> On May 5, 12:34 pm, BruceMcF <agil...(a)netscape.net> wrote:

> > On May 5, 10:57 am, Dragos <mglad...(a)gmail.com> wrote:
> > > > You mean, include some subset of the DC2N system?
> > > >http://www.luigidifraia.com/c64/dc2n/index.html

> No, I meant:
> http://www.ktverkko.fi/~msmakela/8bit/c2n232/index.en.html

> I have the hardware adapter for this I just haven't even tried it
> because my computer is such a pos when it comes to the serial port. I
> have an rs232 cart I put together a driver for. It worked fine for
> awhile. Then, since my xp machine won't have it I gave up improving
> the driver. I'm not about to reboot xp every time I want to use the
> rs232 cart.

So you are repeating that you meant NOT LIKE the C2N232.

Ergo, therefore, thus, so when you say adding C2N capabilities to the
uIEC, what you WANT is something LIKE the DC2N.

Or you meant you wanted something BOTH unlike the C2N232 AND ALSO
unlike the DC2N?
From: christianlott1 on 5 May 2008 15:08
On May 5, 1:46 pm, BruceMcF <agil...(a)netscape.net> wrote:
> On May 5, 2:09 pm, christianlott1 <christianlo...(a)yahoo.com> wrote:
>
> > On May 5, 12:34 pm, BruceMcF <agil...(a)netscape.net> wrote:
> > > On May 5, 10:57 am, Dragos <mglad...(a)gmail.com> wrote:
> > > > > You mean, include some subset of the DC2N system?
> > > > >http://www.luigidifraia.com/c64/dc2n/index.html
> > No, I meant:
> >http://www.ktverkko.fi/~msmakela/8bit/c2n232/index.en.html
> > I have the hardware adapter for this I just haven't even tried it
> > because my computer is such a pos when it comes to the serial port. I
> > have an rs232 cart I put together a driver for. It worked fine for
> > awhile. Then, since my xp machine won't have it I gave up improving
> > the driver. I'm not about to reboot xp every time I want to use the
> > rs232 cart.
>
> So you are repeating that you meant NOT LIKE the C2N232.
>
> Ergo, therefore, thus, so when you say adding C2N capabilities to the
> uIEC, what you WANT is something LIKE the DC2N.
>
> Or you meant you wanted something BOTH unlike the C2N232 AND ALSO
> unlike the DC2N?

The reason why I mentioned tape is because it's just C=/r-s and you're
loading a tape. I know jiffy dos does this for disk, but i don't have
jd.

Still, tapes are pretty important anyway. So if the uiec had an
interface for tape that would be cool.

The cd2n looked like it just recorded tapes from a datasette. If it
can also play them back into a C=, then yes - same is same.

From: Jim Brain on 5 May 2008 22:34
== Quote from christianlott1 (christianlott1(a)yahoo.com)'s article
> On May 4, 10:22 pm, Jim Brain <br...(a)jbrain.com> wrote:
> I just thought of a way to make your uIEC more complex ;)
> Support the tape port.
> Haven't you heard this one before??
Actually, I don't think so. Some have requested IEEE 488 support, which I plan to
support, but I don't remember anyone asking for cassette support.

I like this idea. It's simpler than a new cartridge, doesn;t require cracking
open the machine like a keyboard idea, and can be used with all CBM machines
(except the SX64, but that has a SH/RS combo to load from device 8.)

However, I'm not sure I see the value of interfacing uIEC with it. If you have
uIEC, you would no doubt prefer to use it with the IEC port and/or the IEEE port,
since it's more like a disk drive than a cassette port.

So, you primarily want something to get you to the uIEC.

That, I believe, is a simpler proposition. Take a smaller AVR or PIC, program
with a small static program (10 load "*",de, for example) into the codespace,
program a small app to toggle the read line appropriately to get the app in (take
the cassette code from C2N232 and you're mostly there) and put a few switches or
jumpers on the board to select which device should be booted from. A hobbyist
could make on in an afternoon with a programmed AVR uC, no PCB needed, and it
could be used regardless of whether someone has a uIEC/sd2iec/RRNET, etc. Plug in
and go.

Jim
I like your idea, but, I posit I don't need to support it within uIEC.

uIEC will support IEC ports and the second firmware will support IEEE ports. All
CBM machine had one or the other, and those are the ports to emulate.

Still, your idea has merit and is simpler than my idea. Thus, I vote to make
something truly independent:


> :)
> Please don't bring up C2N232. My xp computer only likes legacy 9 pin
> serial communication according to obtuse and extremely rare
> constellation configurations.

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