USB to Serial

I looked at 3 and they all worked fine. Specifically, we've used I/O Gear for awhile with no problems.

If you can, get hold of the FTDI one. I've used a few of them including the Keyspan and Prolific ones and the FTDI was the least hassle by a long chalk.

Chris

I have several Macintoshes, and used Belkin converters at first. They worked well, until Belkin didn't keep up their support for the system

On Tue, 24 Feb 2004 21:14:28 GMT, "D. Zimmerman" wrote in comp.arch.embedded:

We use ones by I/O Gear at up to 115K baud into ProComm without ever loosing an incoming character. But haven't used with hardware handshake at all.

"D. Zimmerman" schrieb:

I tested a converter built around the Prolific chip and it did perfectly, including handshake lines.

In article , Jim Nagy writes

We had some PC software problems with Belkin units which always seemed to allocate themselves to exotic COM port numbers. Then the COM port number reported by the driver did not match the port number found by our software.

I've used the Prolific ones with handshaking.

Had tremendous problems, until I inserted a delay in my application software that ensured the buffer would fill at the baud rate. If I didn't control the speed even if the software was set to the correct baud rate, windows would transfer the data to the converter at max speed causing buffer overruns and thereby loss of data

Cheers

Klaus

Thank you all! Someone pointed out something that I should have thought of, a serial PCMCIA card. So we'll look at the USB products suggested and the PC card. Thanks again.

Dennis,

read the users feedback at:

Don...

I'm also looking into adding USB to my design. I would like to try two things:

or

Talk to you.

Stijn

There may be by now, but odds are it's not worth having. It'll cost you more in terms of hardware and power requirements than it's worth, unless your embedded system is already untypically bulky.

USB is designed explicitly under the assumption of powerful host computer controlling simplistic slave devices. The longer you look at it, the more it tends to feel as if USB were part of a hidden plot by Intel meant to ensure that a full-scale PC stays at the center of everybody's "digital home".

I.e. if you don't plan on building most of a PC, or at least a PocketPC, hosting USB is not really an option.

EEPROM.

COM

then

keep

COM4.

I've used a couple different models on my laptop with XP Pro and saw the same port scattering. On XP it is possible to change the assigned port though.

Also, I had the best luck of the two I tried with IOGear but it's $29.95 at Fry's then I found it online, the exact same model for $14.95 though I don't remember how much the shipping costs were.

My Prolific based chip would not do handshaking properly. I tried every driver combination I could find. It worked Ok for data coming in from my Deluo GPS "mouse" but failed to let me program my JKMicro board or program a device at work so I switched to IOGear and bought it at Fry's.