From: Nicholas F. <nic...@gm...> - 2008-03-29 20:25:38
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Hi, I have been looking around, and it seems that it is only possible to have 3 or 4 serial ports on a gumstix configuration. Is there a configuration that allows for more than this number of ports to be supported by the processor (ie. show up as standard serial ports). Thanks, Nick -- View this message in context: http://www.nabble.com/Is-it-possible-to-have-more-than-4-serial-ports--tp16374125p16374125.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: Sylvain M. <24...@gm...> - 2008-03-29 20:31:12
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Easy solution : USB Hub + usb 2 serial converters Hard solution : Develop a full custom solution ... hw + driver ... a small fpga connected somehow to the cpu (depends on the bandwith requirement ...) could implement quite a few uarts without too much trouble. How much do you need ? What speed ? Need hw handshake ? ... Sylvain On Sat, Mar 29, 2008 at 9:25 PM, Nicholas Ford <nic...@gm...> wrote: > > Hi, > > I have been looking around, and it seems that it is only possible to have > 3 > or 4 serial ports on a gumstix configuration. Is there a configuration > that > allows for more than this number of ports to be supported by the > processor > (ie. show up as standard serial ports). > > Thanks, > > Nick > -- > View this message in context: > http://www.nabble.com/Is-it-possible-to-have-more-than-4-serial-ports--tp16374125p16374125.html > Sent from the Gumstix mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Nicholas F. <nic...@gm...> - 2008-03-29 21:09:30
|
Thanks for the ideas. Currently, I need 5 ports, but it may increase to 7 or 8 later. Most devices connected are low speed (9600 and 19200 baud), so the speed is not an issue. The ports are being used in a simple 3 line communication (rx,tx and gnd). If there are no pre-existing boards to expand the number of serial ports, I'll just go with the USB solution. It may be bulky and inelegant, but it should work. Nick Sylvain Munaut-2 wrote: > > Easy solution : USB Hub + usb 2 serial converters > Hard solution : Develop a full custom solution ... hw + driver ... a > small > fpga connected somehow to the cpu (depends on the bandwith requirement > ...) > could implement quite a few uarts without too much trouble. > > How much do you need ? What speed ? > Need hw handshake ? ... > > Sylvain > > On Sat, Mar 29, 2008 at 9:25 PM, Nicholas Ford <nic...@gm...> > wrote: > >> >> Hi, >> >> I have been looking around, and it seems that it is only possible to have >> 3 >> or 4 serial ports on a gumstix configuration. Is there a configuration >> that >> allows for more than this number of ports to be supported by the >> processor >> (ie. show up as standard serial ports). >> >> Thanks, >> >> Nick >> -- >> View this message in context: >> http://www.nabble.com/Is-it-possible-to-have-more-than-4-serial-ports--tp16374125p16374125.html >> Sent from the Gumstix mailing list archive at Nabble.com. >> >> >> ------------------------------------------------------------------------- >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for >> just about anything Open Source. >> >> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > -- View this message in context: http://www.nabble.com/Is-it-possible-to-have-more-than-4-serial-ports--tp16374125p16374587.html Sent from the Gumstix mailing list archive at Nabble.com. |