Hi Peter, every serial mouse in the world does exactly the same. I know that these are an endangered species, as appear to be standard RS232-ports. I don't think there are any specifications available on how much you may steal from the RS232-port, but as far as I remember there was actually an application note from Microchip itself, describing how to do the trick. Yes, indeed: AN519 http://www.microchip.com/1010/suppdoc/appnote/all/an519/index.htm
Uwe. PV> Does anyone have any experience in using an RS232 port to power a PV> periphereal device? The device includes a small PIC micro that will PV> need to send data back to the computer it's plugged into, so I need to PV> power the RS232 driver as well. PV> Any practical advice such as how much current and voltage I can rely on PV> will be appreciated. PV> Peter Vogel PV> ZapTV Pty Ltd PV> 30 Adeline St, Faulconbridge 2776 PV> Australia PV> Tel: 02 4751 8735 PV> Fax: 02 4751 2601 PV> email: [EMAIL PROTECTED] -- Author: Uwe Zimmermann INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
