From: James C. <ja...@ca...> - 2006-07-10 22:35:45
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Hey all, How much drive do the gumstix GPIOs on the GPSstix output? I've got a circuit that requires 5mA is a GPIO sufficent? James |
From: ken s. <ken...@gm...> - 2006-07-10 22:43:45
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Intel(r) PXA255 Processor Electrical, Mechanical, and Thermal Specification, page 27 All the non-analog input, output, and I/O pins on the processor can be divided into one of two categories: 1. High Strength Input, Output, and I/O pins: =95 nCS[5:1] (GP 33, 80, 79, 78, 15 respectively), nCS[0] =95 MD[31:0], MA[25:0] =95 DQM[3:0] =95 nOE, nWE, nSDRAS, nSDCAS, nSDCS[3:0] =95 SDCLK[2:0], SDCKE[1:0] =95 RDnWR, RDY (GP[18]) =95 nPWE, nPOE pins (GP[49:48]) =95 MMCLK (GP[53]), MMCMD, MMDAT =95 TDO =95 nACRESET 2. Low Strength Input, Output, and I/O pins - all remaining non-supply pins high-strength output and I/O pins +/- 10mA low-strength output and I/O pins +/- 3mA Regards, Ken On 10 Jul 2006 23:35:38 +0100, James Coxon <ja...@ca...> wrote: > Hey all, How much drive do the gumstix GPIOs on the GPSstix output? I've > got a circuit that requires 5mA is a GPIO sufficent? > > James > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job ea= sier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim= o > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat= =3D121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Marc N. <gee...@gm...> - 2006-07-11 02:27:34
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How does one go about "unassinging" pins from their specifc use to GPIO? -marc On 7/10/06, ken staton <ken...@gm...> wrote: > > Intel(r) PXA255 Processor Electrical, Mechanical, and Thermal > Specification, page 27 > > All the non-analog input, output, and I/O pins on the processor can be > divided into one of two > categories: > 1. High Strength Input, Output, and I/O pins: > =95 nCS[5:1] (GP 33, 80, 79, 78, 15 respectively), nCS[0] > =95 MD[31:0], MA[25:0] > =95 DQM[3:0] > =95 nOE, nWE, nSDRAS, nSDCAS, nSDCS[3:0] > =95 SDCLK[2:0], SDCKE[1:0] > =95 RDnWR, RDY (GP[18]) > =95 nPWE, nPOE pins (GP[49:48]) > =95 MMCLK (GP[53]), MMCMD, MMDAT > =95 TDO > =95 nACRESET > 2. Low Strength Input, Output, and I/O pins - all remaining non-supply > pins > > high-strength output and I/O pins +/- 10mA > low-strength output and I/O pins +/- 3mA > > Regards, > Ken > > On 10 Jul 2006 23:35:38 +0100, James Coxon <ja...@ca...> wrote: > > Hey all, How much drive do the gumstix GPIOs on the GPSstix output? I'v= e > > got a circuit that requires 5mA is a GPIO sufficent? > > > > James > > > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, > security? > > Get stuff done quickly with pre-integrated technology to make your job > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat= =3D121642 > > _______________________________________________ > > gumstix-users mailing list > > gum...@li... > > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim= o > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat= =3D121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Dave H. <dhy...@gm...> - 2006-07-11 02:48:36
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Hi Marc, On 7/10/06, Marc Nicholas <gee...@gm...> wrote: > How does one go about "unassinging" pins from their specifc use to GPIO? See this page: http://www.gumstix.org/tikiwiki/tiki-index.php?page=Tips+and+Tricks and search for: 'Access GPIOs from user-space' -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Marc N. <gee...@gm...> - 2006-07-11 03:24:57
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Thanks, Dave! -marc On 7/10/06, Dave Hylands <dhy...@gm...> wrote: > > Hi Marc, > > On 7/10/06, Marc Nicholas <gee...@gm...> wrot > > How does one go about "unassinging" pins from their specifc use to GPIO? > > See this page: > http://www.gumstix.org/tikiwiki/tiki-index.php?page=Tips+and+Tricks > > and search for: 'Access GPIOs from user-space' > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |