From: linnix on
On Jul 8, 10:09 pm, Frank Buss <f...(a)frank-buss.de> wrote:
> linnix wrote:
> > Why? Is COM9 special on window?
>
> Sorry, COM9 should work, but the trouble starts with COM10, see
> "Communications Resources" at the manual page:
>

Thanks for pointing this out. I fixed the initial scanning, but still
need to remove the invalid entries and handle combo change events.
From: linnix on
On Jul 9, 6:40 am, Anders.Monto...(a)kapsi.spam.stop.fi.invalid wrote:
> Albert van der Horst <alb...(a)spenarnc.xs4all.nl> wrote:
>
> > I think this is a design error. If your system features serial
> > device on USB ports, they should have a fixed name for each
> > USB port. Then if there is no communication possible on the port
> > the driver should respond so during open, or just make the device
> > unreadable/unwritable.
>
> Out of curiosity, does the device you use feature a unique serial number?
> At least on Windows, a lot of annoying behaviour goes away once the OS is
> able to reliably identify devices.

Yes, we do. We use it to ID multiple boards and versions on the USB
bus.

>
> On Linux you can also use udev rules to control the created device names.

Unfortunately, the Linux USB generic serial driver is not working
right (Kernel 2.4). Will try again later.

From: -jg on
On Jun 28, 9:22 am, Jon Kirwan <j...(a)infinitefactors.org> wrote:
>
> If there are some constructive thoughts, I'd love to hear
> them.  If you know of a terribly serious flaw (outside of
> mere ad hominem) that I've completely missed, that's
> constructive too.

Jon,

On an 'as well as' basis (if you are a sucker for punishment?), I've
just spotted the price of this ARM device, sounds not-like-anything-
else :

NUC501ADN Shows 1924 in stock, at NuHorizons at $1.35ea

For that, you get USB, a 16 Bit Audio DAC, (mono)
a Mic in, and std other peripherals.

It uses 32K RAM to keep the price down, and boots from
USB, or SPI, and can run from SPI (slowly).

http://www.nuvoton.com/hq/enu/productandsales/productlines/industrialic/armmicrocontroller/armmicrocontroller/pages/nuc501a_nuc501b.aspx

only thing missing is the ability to power from USB ?

Their Nuc1xx tools are cheap, not sure on the flow
for the Toy_uC, ( looks like N55UL501 is a new sibling?)

-jg


From: Jon Kirwan on
On Wed, 21 Jul 2010 19:43:20 -0700 (PDT), -jg
<jim.granville(a)gmail.com> wrote:

>On Jun 28, 9:22�am, Jon Kirwan <j...(a)infinitefactors.org> wrote:
>>
>> If there are some constructive thoughts, I'd love to hear
>> them. �If you know of a terribly serious flaw (outside of
>> mere ad hominem) that I've completely missed, that's
>> constructive too.
>
>Jon,
>
>On an 'as well as' basis (if you are a sucker for punishment?), I've
>just spotted the price of this ARM device, sounds not-like-anything-
>else :
>
>NUC501ADN Shows 1924 in stock, at NuHorizons at $1.35ea
>
>For that, you get USB, a 16 Bit Audio DAC, (mono)
>a Mic in, and std other peripherals.
>
>It uses 32K RAM to keep the price down, and boots from
>USB, or SPI, and can run from SPI (slowly).
>
>http://www.nuvoton.com/hq/enu/productandsales/productlines/industrialic/armmicrocontroller/armmicrocontroller/pages/nuc501a_nuc501b.aspx
>
>only thing missing is the ability to power from USB ?
>
>Their Nuc1xx tools are cheap, not sure on the flow
>for the Toy_uC, ( looks like N55UL501 is a new sibling?)
>
>-jg

Too bad the internal ROM is ... ROM.

What's the future of this thing? Any ideas? I don't know
anything about the company.

But thanks, I'll look more into it just the same. The
ability to boot from SPI makes me wonder about what kind of
memories out there I might use for it. I'll have to look at
that, as well. No experience with SPI memory devices.

Jon
From: malcolm on
On Jul 22, 7:11 pm, Jon Kirwan
> Too bad the internal ROM is ... ROM.

That's under the Price column ;)

>
> What's the future of this thing?  Any ideas?  

I'm not sure if the NUC501ADN precedes the N55UL501,
or is some rename, as I cannot see both on the same document.
The application would be high volumes.

> I don't know anything about the company.

Nuvoton is another marketdroid scramble of what used to be Winbond.
They spun off the uC divn, and called it Nuvoton. Been making 8051's
since adam was a boy...


> But thanks, I'll look more into it just the same.  The
> ability to boot from SPI makes me wonder about what kind of
> memories out there I might use for it.  I'll have to look at
> that, as well.  No experience with SPI memory devices.

Truckloads of SPI, and I think they mention 2-bit mode is supported
too.

I think they chose this split, as a common use will be large Audio
sound sets, pulled out of Megabyte SPI's.
(and Winbond are a large SPI memory vendor..)

At that price, and with good sw, this could shake FTDI
a little.

We've had a few apps go past, where just a little more IQ than the
fixed FTDI would be good, and 32K RAM would be plenty.

-jg