Other than the two chips specified there are no other chips, just
some capacitors and resistors. Doing a search for CY7C63001 reveals
that it is a Cypress chip. In fact it is the same one as seen in
the following link:
So what we have is the USB cable connected to the CY7C63001
chip, which is connected both to the serial connector and the
MAX232 chip. The MAX232 chip is also connected to the serial
port. In fact there are two ports, but they can't be used at the same
time - one is a DIN-8 socket and the other a DB-9.
It's not the MAX232 - the MAX232 (and variants) is a chip seen in
practically every USB / serial interface, its sole purpose in these
implementations is to convert/drive the 3v or 5v logic to RS232 (12v)
levels. There is no driver glue associated with these chips usually,
so it's either the CY7... or 89C... chip. If there's manufacturer
names on the chips it is very likely you can search them in their
respective website. The MAX232 I could identify since I've used it
myself, and practically every RS232 interface uses it! The others I
haven't come across.
Disassembling the MacOS9 driver might tell you one or two things -
they may have left label info and string details which could allude to
the chip types; also it could have info about the driver writers, whom
you could check with (if you can trace them down) as to what the other
chips are.
Regards,
Jose.
--
Death, taxes and Microsoft. If you put it that way, the first two
don't seem so bad.
On 28 Sep 2004, at 00:00, André-John Mas wrote:
Hi,
The only other chip in there, other than the CY7C63001A-PC,
is marked as:
89CN8ET
MAX232N
A quick search on the internet shows that the relavent number
is the second one:
Would disassembling the driver for MacOS 9 tell me anything
useful? - note that this is not a speciality of mine.
regards
Andre
On 27 Sep, 2004, at 16:46, Jose Commins wrote:
Hi,
Do you know what chip your serial adaptor is using? If it's the
PL2303 then you may be in luck - there's a driver for it (you need
to alter its properties) and I'm working on another.
Regards,
Jose.
--
Arguing with an engineer is like wrestling with a pig in mud.
After a while, you realize the pig is enjoying it.
On 27 Sep 2004, at 20:04, Andr?-John Mas wrote:
Hi,
I have just got an old uConnect USB-serial adaptor. I was hoping
to use this for by GPS devices, but none of the GPS clients seem
to see the USB dervice as a serial port. Follows is the details as
supplied by 'USB prober':
Low Speed device @ 6 (0x19134000):
.............................................. Vendor-specific
device:
"uConnect"
Device Descriptor
Descriptor Version Number: 0x0100
Device Class: 255 (Vendor-specific)
Device Subclass: 1 (Vendor-specific)
Device Protocol: 0
Device MaxPacketSize: 8
Device VendorID/ProductID: 0x0741/0x0001 (unknown
vendor)
Device Version Number: 0x0A00
Number of Configurations: 0
Manufacturer String: 18 "Momentum US Inc."
Product String: 52 "uConnect"
Serial Number String: 70 "April 27, 1999 10:00 AM"
From opening up the box I see that the chip is labelled:
CY7C63001A-PC
Hopefully someone will be able to tell me whether there is a
solution
to get this working, even if it having to modify some USB-serial
driver.
