Hi! Richard: > Well done Levente!!! > > Are you going to upload the PIC source code and binaries as well? ;) Thanks! Of course, I plan to include the commented source together with the schematics and tips for re-building the circuit. Nicolas: > Once it works, do you plan to adapt the design to PS/2 mice as well? AFAIK > they have a standard TTL interface, so the hardware should become even > simpler. And somehow I observe that today's universal mice are USB/PS2 and > not serial/PS2 anymore. Well probably. Once I was thinking on leaving the serial mouse idea in favour of the PS/2 mouse, but I had no infos on this latter. Does anyone on this list have docs for the PS/2 mouse? (Connector layout, protocol and so on). Indeed, supplying the appropriate voltage level have been, and is still a critical part in the interface design (at least, if one wants to avoid using integrated dual voltage doubler chips and the like). I started with using some 555+diodes+capacitor based circuit, then swapped it to a TL497, then left the whole part and powered the mouse from the single +5V (current prototype board). Some mice still do work from this supply, some not. I don't want to rely on this possibility, so I'll either include a small voltage multiplier, or forget the whole idea and move to the PS/2 mouse (which one, depends on how much troubles will I have with the voltage part, and if some of you can point me to a PS/2 mouse info source). Now I'm gonna be off for a week or so. I'll be on holidays and plan not to bring any computers with myself (computer free tour :-)). Then I'll finish the doc / the design and upload it to funet. Any comments or ideas are of course welcome. With best regards, L. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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