Rene, thanks for your offer. I will appreciate if you can send your sources to me.
Problems described before can be, IMHO, caused because 4 MHz frequency of 12f675 is not fast enough to accomplish protocol standards properly. We will try it with faster microprocessor :). BTW I will prefer if such a "home-build slave" can be detected and driven on the 1-wire network using OWFS, not by some "home-build" master. Regards Petr RT> Hi, RT> think you have best changes if both slave and master are 'home-build'.. RT> as said in my previous mail, i encountered problems using dallas' master RT> devices. RT> if you want i can delve my archives and send you the source for a custom RT> slave, written for a 12f675 (if i remember correctly) in assembler. RT> regards, RT> rene RT> Petr wrote: >> I have made some research during the weekend and it looks like there >> is nearly no activity in "1-Wire slave" emulation on the Internet. >> The only web I have found is in Poland (fortunately Polish is similar >> a little bit to the Czech language so I can understand it :) >> http://idom.wizzard.one.pl >> >> This guy is designing his own home automation using 1-Wire protocol. >> Slave devices on the network are build using the atmel tiny13 >> microprocessor and the sources are available in the download section. >> >> We will do more investigation and experiments and I will send more >> info about our progress (if any :) later on. >> >> Petr >> >> APHMD> Petr, >> APHMD> >> APHMD> It would be nice to have an easily added facility to extend OWFS for >> these >> APHMD> "one-of" devices. >> APHMD> >> APHMD> I presume there would be specific memory addresses with known format >> that would >> APHMD> have a meaning (like 0x0122-3 are int16 "angle") and PIO.A is "motor >> on" >> APHMD> >> APHMD> Seems like a configuration file and parser would work. I haven't done >> anything >> APHMD> like that for years. Text? XML? >> APHMD> >> APHMD> Once parsed, this process wold be vary fast, and easy to intergrate >> into the >> APHMD> current design. The only question is whether it should include small >> "programs" >> APHMD> like the process needed to get humidity or thermocouple readings, >> which need >> APHMD> several different properties read and set, in order. >> APHMD> >> APHMD> Paul >> >> APHMD> ________________________________ >> >> APHMD> From: [EMAIL PROTECTED] on behalf of Petr >> APHMD> Sent: Tue 9/27/2005 3:20 AM >> APHMD> To: ND Holmes >> APHMD> Cc: [EMAIL PROTECTED] >> APHMD> Subject: [Owfs-developers] Re: Microchip acting as 1Wire >> >> >> >> APHMD> Nathan, >> APHMD> good to know somebody is as crazy as we are :) >> >> APHMD> Our main intention was (is) to program Microchip to behave (act) >> APHMD> "exactly" as a one wire device (slave), so the master (OWFS) can't >> APHMD> find any difference and will detect and treat microchip exactly as the >> APHMD> real one 1-wire device. DS2431 (1024-Bit 1-Wire EEPROM) is coming to >> APHMD> mind as a good candidate. >> >> APHMD> IMHO it can be possible to write commands (sense of rotation of the >> APHMD> motor, speed, number of steps, acceleration, etc...) to the Microchip >> APHMD> memory (acting as DS2431 EEPROM) through 1-wire network. >> >> APHMD> Microchip (according to the received information) will control motor >> APHMD> and will write feedback information (the real position of the motor >> for >> APHMD> example) to an other part of the EEPROM so it will be possible to read >> APHMD> this information from the 1-wire network. >> >> APHMD> I will appreciate your comments. >> >> APHMD> Petr >> >> >> >> >> >> >> ------------------------------------------------------- >> This SF.Net email is sponsored by: >> Power Architecture Resource Center: Free content, downloads, discussions, >> and more. http://solutions.newsforge.com/ibmarch.tmpl >> _______________________________________________ >> Owfs-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/owfs-developers RT> ------------------------------------------------------- RT> This SF.Net email is sponsored by: RT> Power Architecture Resource Center: Free content, downloads, discussions, RT> and more. http://solutions.newsforge.com/ibmarch.tmpl RT> _______________________________________________ RT> Owfs-developers mailing list RT> [email protected] RT> https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
