Serial Driver Speed

mynet43

Quick question about RS-232 serial driver speed.

Which driver do you recommend for speeds greater than 115,200 baud? Is there some summary of driver capabilities?

I have to transfer a picture of 480 X 480 X 16 bit RGB pixels to a screen, using a serial link.

I'm stuck with sending one pixel at a time, so with command overhead, each pixel takes about 15 bytes ("pw x y RGB").

I'd like to minimize the transfer time by using the maximum speed available for the screen (230,400 baud).

Thank you for your help.

Jim

SRLM

Most pasm drivers will work. I like FFDS1

mynet43

OK, sounds good.

And what is FFDS1? I can't find anything in the OBEX by that name or using it as an acronym...

Do you mean FullDuplexSerial, or FullDuplexSerialPlus or ???

Thanks,

Jim

kwinn

I think he means the fullDuplexSerial4port (http://obex.parallax.com/objects/category/5/?page=4) object or the improved version of that.

mynet43

I clicked on your link to the 4-port driver, it didn't seems to work.

Do you mean Terry Moore's pcFullDuplexSerial4FC?

Still trying to figure out what FFDS1 means...

Thanks for your help.

Jim

max72

Try
http://forums.parallax.com/showthread.php?143514-Fast-Full-Duplex-Serial-1-Cog-a.k.a.-FFDS1

Massimo

mynet43

Aha! Thank you!

So it's not in the OBEX yet. Maybe it should be

Thanks for the link! I'll try it.

Jim