From: Darren G. <ts...@ya...> - 2005-04-05 22:58:50
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I have an Audiostix-based project and need to add a few buttons/LEDs. What's the best way to approach this? I read on the schematics page that for the Audiostix: "In addition, we put SMT pads down allowing access the UCB1400's 10 GPIO lines, 4 A/D lines, and touchscreen input. Finally, there is a set of pads available to put down a header to connect to several gumstix GPIO lines directly." But looking at the schematic I don't see the gumstix GPIO lines. Everything appears to connect to the UCB1400. How does one access the UCB's GPIOs? darren |
From: Bhaskar M. <bha...@gm...> - 2005-04-06 13:20:50
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Hi Darren, the X1 connector on the audiostix will have the ucb gpio pins in it. The schematic has a 12pin X1 connector that contains all the GPIO pins and the agnd, avdd signals. also from the wiki "The X1 X2 X3 X4 connectors are from the MOLEX 53398 series. " my audiostix is not here yet but i think that the pads should be there. bhaskar. On Apr 5, 2005 6:58 PM, Darren Gibbs <ts...@ya...> wrote: > I have an Audiostix-based project and need to add a few buttons/LEDs. > What's the best way to approach this? > > I read on the schematics page that for the Audiostix: > > "In addition, we put SMT pads down allowing access the UCB1400's 10 > GPIO lines, 4 A/D lines, and touchscreen input. Finally, there is a set > of pads available to put down a header to connect to several gumstix > GPIO lines directly." > > But looking at the schematic I don't see the gumstix GPIO lines. > Everything appears to connect to the UCB1400. > > How does one access the UCB's GPIOs? > > darren > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Darren G. <ts...@ya...> - 2005-04-06 16:29:33
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Hello, On Apr 6, 2005, at 6:20 AM, Bhaskar Mukherjee wrote: > the X1 connector on the audiostix will have the ucb gpio pins > in it. The schematic has a 12pin X1 connector that contains all the > GPIO pins and the agnd, avdd signals. Yes I see the pads, but I'm not clear how one accesses them from software running on the gumstix. All of the talk of GPIOs I've seen on the list seems to have been about the PXA's GPIOs, and I don't see any of those on the Audiostix schematic. > > On Apr 5, 2005 6:58 PM, Darren Gibbs <ts...@ya...> wrote: >> I have an Audiostix-based project and need to add a few buttons/LEDs. >> What's the best way to approach this? >> >> I read on the schematics page that for the Audiostix: >> >> "In addition, we put SMT pads down allowing access the UCB1400's 10 >> GPIO lines, 4 A/D lines, and touchscreen input. Finally, there is a >> set >> of pads available to put down a header to connect to several gumstix >> GPIO lines directly." >> >> But looking at the schematic I don't see the gumstix GPIO lines. >> Everything appears to connect to the UCB1400. >> >> How does one access the UCB's GPIOs? >> >> darren |
From: Bhaskar M. <bha...@gm...> - 2005-04-06 19:13:54
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Hi Darren, You cannot use them directly like you use the /proc/gpio interface. My idea would be to take a look at the driver code for the sound and touchscreen for ucb1400. If you can see anything that seems to read the value of the IO data (5A) register in UCB1400 then that function is all that you need. other option is to wait for craig to read and finally reply to this mail when he has time, i have not messed around with the ac97 code so far but it should not be hard to add a patch that sets up the GPIO and reads the register. good luck bhaskar. On Apr 6, 2005 12:29 PM, Darren Gibbs <ts...@ya...> wrote: > Hello, > > On Apr 6, 2005, at 6:20 AM, Bhaskar Mukherjee wrote: > > the X1 connector on the audiostix will have the ucb gpio pins > > in it. The schematic has a 12pin X1 connector that contains all the > > GPIO pins and the agnd, avdd signals. > > Yes I see the pads, but I'm not clear how one accesses them from > software running on the gumstix. All of the talk of GPIOs I've seen on > the list seems to have been about the PXA's GPIOs, and I don't see any > of those on the Audiostix schematic. > > > > > On Apr 5, 2005 6:58 PM, Darren Gibbs <ts...@ya...> wrote: > >> I have an Audiostix-based project and need to add a few buttons/LEDs. > >> What's the best way to approach this? > >> > >> I read on the schematics page that for the Audiostix: > >> > >> "In addition, we put SMT pads down allowing access the UCB1400's 10 > >> GPIO lines, 4 A/D lines, and touchscreen input. Finally, there is a > >> set > >> of pads available to put down a header to connect to several gumstix > >> GPIO lines directly." > >> > >> But looking at the schematic I don't see the gumstix GPIO lines. > >> Everything appears to connect to the UCB1400. > >> > >> How does one access the UCB's GPIOs? > >> > >> darren > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Craig H. <cr...@hu...> - 2005-04-06 23:29:15
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It should be fairly easy to extend the /proc/gpio stuff to have the ucb1400 GPIOs show up there too. I'll take a look at it, probably this week, but maybe next. Remind me if you haven't heard anything by this time next week. C On Apr 6, 2005, at 12:13 PM, Bhaskar Mukherjee wrote: > Hi Darren, > You cannot use them directly like you use the /proc/gpio > interface. My idea would be to take a look at the driver code for the > sound and touchscreen for ucb1400. If you can see anything that seems > to read the value of the IO data (5A) register in UCB1400 then that > function is all that you need. other option is to wait for craig to > read and finally reply to this mail when he has time, i have not > messed around with the ac97 code so far but it should not be hard to > add a patch that sets up the GPIO and reads the register. > good luck > bhaskar. > > On Apr 6, 2005 12:29 PM, Darren Gibbs <ts...@ya...> wrote: >> Hello, >> >> On Apr 6, 2005, at 6:20 AM, Bhaskar Mukherjee wrote: >>> the X1 connector on the audiostix will have the ucb gpio pins >>> in it. The schematic has a 12pin X1 connector that contains all the >>> GPIO pins and the agnd, avdd signals. >> >> Yes I see the pads, but I'm not clear how one accesses them from >> software running on the gumstix. All of the talk of GPIOs I've seen >> on >> the list seems to have been about the PXA's GPIOs, and I don't see any >> of those on the Audiostix schematic. >> >>> >>> On Apr 5, 2005 6:58 PM, Darren Gibbs <ts...@ya...> wrote: >>>> I have an Audiostix-based project and need to add a few >>>> buttons/LEDs. >>>> What's the best way to approach this? >>>> >>>> I read on the schematics page that for the Audiostix: >>>> >>>> "In addition, we put SMT pads down allowing access the UCB1400's 10 >>>> GPIO lines, 4 A/D lines, and touchscreen input. Finally, there is a >>>> set >>>> of pads available to put down a header to connect to several gumstix >>>> GPIO lines directly." >>>> >>>> But looking at the schematic I don't see the gumstix GPIO lines. >>>> Everything appears to connect to the UCB1400. >>>> >>>> How does one access the UCB's GPIOs? >>>> >>>> darren >> >> ------------------------------------------------------- >> SF email is sponsored by - The IT Product Guide >> Read honest & candid reviews on hundreds of IT Products from real >> users. >> Discover which products truly live up to the hype. Start reading now. >> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real > users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Darren G. <ts...@ya...> - 2005-04-06 23:34:31
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On Apr 6, 2005, at 4:28 PM, Craig Hughes wrote: > It should be fairly easy to extend the /proc/gpio stuff to have the > ucb1400 GPIOs show up there too. I'll take a look at it, probably > this week, but maybe next. Remind me if you haven't heard anything by > this time next week. That would be very cool! Thanks... So is this phrase in the Audiostix section of the wiki Schematics page not true?: "Finally, there is a set of pads available to put down a header to connect to several gumstix GPIO lines directly." |
From: Craig H. <cr...@hu...> - 2005-04-06 23:45:43
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On Apr 6, 2005, at 4:34 PM, Darren Gibbs wrote: > > On Apr 6, 2005, at 4:28 PM, Craig Hughes wrote: > >> It should be fairly easy to extend the /proc/gpio stuff to have the >> ucb1400 GPIOs show up there too. I'll take a look at it, probably >> this week, but maybe next. Remind me if you haven't heard anything >> by this time next week. > > That would be very cool! Thanks... > > So is this phrase in the Audiostix section of the wiki Schematics page > not true?: > > "Finally, there is a set of pads available to put down a header to > connect to several gumstix GPIO lines directly." No, as far as I remember that *is* true -- trying to find an audiostix at my house here to look at and figure out where those are... C |
From: Darren G. <ts...@ya...> - 2005-06-02 22:37:51
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Craig, Did you ever get a chance to look at this? thanks, darren On Apr 6, 2005, at 4:45 PM, Craig Hughes wrote: > On Apr 6, 2005, at 4:34 PM, Darren Gibbs wrote: > > >> >> On Apr 6, 2005, at 4:28 PM, Craig Hughes wrote: >> >> >>> It should be fairly easy to extend the /proc/gpio stuff to have >>> the ucb1400 GPIOs show up there too. I'll take a look at it, >>> probably this week, but maybe next. Remind me if you haven't >>> heard anything by this time next week. >> >> That would be very cool! Thanks... >> >> So is this phrase in the Audiostix section of the wiki Schematics >> page not true?: >> >> "Finally, there is a set of pads available to put down a header to >> connect to several gumstix GPIO lines directly." >> > > No, as far as I remember that *is* true -- trying to find an > audiostix at my house here to look at and figure out where those > are... > |