USB Mouse Interface

mynet43

Does someone know of code to interface with a standard USB Mouse or Trackball?

I have a Logitech trackball that seems to have a standard mouse interface that is automatically recognized by XP.

I need to interface it to the Propeller.

Thank you for your help.

Jim

w8an

I wonder if one of those little usb to ps/2 adapters would work?

Steve

smbaker

Aren't those little adapters USB on the computer side and PS/2 on the mouse side? At least the type I'm thinking of that actually convert between the two protocols...

There are other ones that shipped with earlier dual-mode PS2/USB mice, but I believe those adapters didn't do any protocol conversion; the smarts was in the dual-mode mouse which would either talk serial or USB depending on what it ended up plugged into.

mynet43

Thanks for the feedback. I actually went out and bought a USB to PS2 mouse adapter since I posted this.

It seems to work fine on the PC. I "assume" it will work with Chip's driver on the Propeller.

My preference is to use the USB interface directly, since this is going on a circuit board.

Does anyone have any experience working with this type of USB device direct to the Propeller, with or without the FT232RL interface chip?

Thanks again,

Jim

ErNa

as far as I know, the mice are quite intelligent. Means: they ( an USB mouse) can decide, if they are connected to a USB port or to a PS2 port. The only problem is to wire the usb-pins to a PS2 connector. This is done by simple adaptors without any electronical components. Raymans PSB allows to solder a PS2 or USB socket, so the mouse can be connected without adaptor.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
cmapspublic3.ihmc.us:80/servlet/SBReadResourceServlet?rid=1181572927203_421963583_5511&partName=htmltext
Hello Rest Of The World
Hello Debris
Install a propeller and blow them away

heater

You need USB host mode on the Prop to handle a mouse with USB, or any other USB device.
I think Micah Dowty's USB host package for the Propeller will do it. http://forums.parallax.com/showthread.php?p=894757
It's a lot of code and COGs just to listen to a mouse though.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
For me, the past is not over yet.

mynet43

Thanks for the great feedback!

heater: Micah's project looks like it might work, but it's kind of overkill. I'm trying to get this working on a regular setup and it needs a special xtal and several cogs. That's a lot just for a mouse interface. I like Bill Henning's suggestion to make a simple mouse/keyboard usb interface that would work in one cog at 80 mHz. Thanks for the link!

ErNa: I may try your suggestion of wiring the usb pins to the PS2 input of the Prop. Do you know the wiring between USB and PS2? If not, I may be able to hack it from the adapter I bought last night.

Thanks again! Let me know if you have any other ideas.

Jim

mynet43

I located the wiring diagram to go from USB to PS2 (attached). The green adapter in the diagram looks exactly what I just bought, which works fine with XP on the PC.

I plan to try it on my Prop Proto Board later today, with Chip's mouse driver.

If it works, it looks like it will be a handy shortcut for getting a USB mouse on a board without all the pain.

Let me know if you have any suggestions.