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From: trungnl on 29 Nov 2005 03:42

I am writting a firmware to connect an embedded USB host with the Prolific
PL2303 USB-RS232 chip. The PL2303 chip is used to get data from some
RS232-enabled devices and then transfer these data to the USB host. Now I
need detailed information about PL2303's specification and operation, to
develope the appropriate driver for it.
I have been searching for some PL2303 driver or programming guides but
haven't found any of them yet.

Has anybody worked with PL2303 ? Please give me some help !

Thanks,
N.L.Trung
From: Meindert Sprang on 29 Nov 2005 04:03
"trungnl" <ngolamtrung(a)yahoo.com> wrote in message
news:vZKdnQIBMd3HiRHenZ2dnUVZ_sydnZ2d(a)giganews.com...
>
> I am writting a firmware to connect an embedded USB host with the Prolific
> PL2303 USB-RS232 chip. The PL2303 chip is used to get data from some
> RS232-enabled devices and then transfer these data to the USB host. Now I
> need detailed information about PL2303's specification and operation, to
> develope the appropriate driver for it.
> I have been searching for some PL2303 driver or programming guides but
> haven't found any of them yet.
>
> Has anybody worked with PL2303 ? Please give me some help !

If you are lucky, you *could* get the API from Prolific. FTDI offers a
similar service under NDA.

Meindert


From: trungnl on 29 Nov 2005 05:29

>If you are lucky, you *could* get the API from Prolific. FTDI offers a
>similar service under NDA.
>
>Meindert
>

Thanks Meindert,
May be that API is the exact thing I need now.
Can you tell me how to get the PL2303's API ?

Thank you very much,
N.L.Trung
From: Michael N. Moran on 29 Nov 2005 07:08
trungnl wrote:
> Has anybody worked with PL2303 ? Please give me some help !

When I wrote a driver for this chip, I gleaned the apparently
reverse-engineered interface information from the appropriate
Linux device driver.

--
Michael N. Moran (h) 770 516 7918
5009 Old Field Ct. (c) 678 521 5460
Kennesaw, GA, USA 30144 http://mnmoran.org

"So often times it happens, that we live our lives in chains
and we never even know we have the key."
The Eagles, "Already Gone"

The Beatles were wrong: 1 & 1 & 1 is 1

From: Meindert Sprang on 29 Nov 2005 07:15
"trungnl" <ngolamtrung(a)yahoo.com> wrote in message
news:xuadnZPzmdXwsBHeRVn-sQ(a)giganews.com...
>
> >If you are lucky, you *could* get the API from Prolific. FTDI offers a
> >similar service under NDA.
> >
> >Meindert
> >
>
> Thanks Meindert,
> May be that API is the exact thing I need now.
> Can you tell me how to get the PL2303's API ?

Well, here's what I wrote earlier:
> >If you are lucky, you *could* get the API from Prolific.
So, contact Prolific...

Meindert



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