On 11/14/01 at 9:37 PM Phoebus R. Dokos wrote: > I did use a PS/2 mouse when I had my Aurora/sH :-) It's a standard > serial port apart from the difference in the packaging (mini din instead > of Sub-D9).
NO!!! This is NOT correct!!! There are mouses that will work as either PS/2 or serial using a mini-din to D9 adapter, but it is NOT the general case. Some mice ONLY work as PS/2 and some only as serial. Even universal mice (PS/2 and Serial) usually use different pins on the mini-din for serial conenctions. PS/2 is NOT a serial port (and if you insist I will post the relevant specs). It is a synchronous port that requires a clock and a bidirectional data line, which are all 5V only. The signal spec is the same as the PC keyboard, NOT the serial mouse. Connecting a PS/2 only mouse to a serial port can damage the mouse. > I was thinking it wouldn't work at first but I was influence from > the PC which uses the PS/2 port as a different kind of serial > port with its own IRQ and only one baud setting. No it's not. It's actually another keyboard port, and is handled by the same microcontroller (8042), just using a different interrupt. > However from an electrical standpoint its 100% the same :-) Not even nearly. Nasta
