How does one access the output of the Mictor connector via the UHD API? Calling get_gpio_banks() returns just RXA and TXA with no mention of FP0. I have a breakout cable attached to the Mictor connector but my scope shows no changes when I bit bang the pins. Thanks!

After further research it seems that the Mictor connector is called 'debug' not GPIO. Can the Mictor connector be used for timed commands? If so, how do I access those debug pins? I haven't seen anything in the UHD api for that. Failing the ability to use timed commands with the Mictor connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines that I can run to an external device. On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> wrote: > How does one access the output of the Mictor connector via the UHD API? > Calling get_gpio_banks() returns just RXA and TXA with no mention of FP0. > I have a breakout cable attached to the Mictor connector but my scope shows > no changes when I bit bang the pins. > > Thanks! >

Oh, and I should mention that I am using the UBX-40 On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> wrote: > After further research it seems that the Mictor connector is called > 'debug' not GPIO. Can the Mictor connector be used for timed commands? If > so, how do I access those debug pins? I haven't seen anything in the UHD > api for that. Failing the ability to use timed commands with the Mictor > connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines > that I can run to an external device. > > On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> > wrote: > >> How does one access the output of the Mictor connector via the UHD API? >> Calling get_gpio_banks() returns just RXA and TXA with no mention of FP0. >> I have a breakout cable attached to the Mictor connector but my scope shows >> no changes when I bit bang the pins. >> >> Thanks! >> > >

I found this link [1] which says "*There's a debug port (MICTOR connector) on the USRP2 (J301) which you can route signals to for debugging. It's connected to the 32-bit wire "debug" in u2_core.v. Just connect signals you're interested in to debug and use a logic analyzer.*" Modifying u2plus_core.v to have `assign debug = {io_tx, io_rx};` at line 768 instead of `assign debug = 32'd0;` allows me to output values with timed commands to GPIO. On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling <dmp250net@gmail.com> wrote: > Oh, and I should mention that I am using the UBX-40 > > On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> > wrote: > >> After further research it seems that the Mictor connector is called >> 'debug' not GPIO. Can the Mictor connector be used for timed commands? If >> so, how do I access those debug pins? I haven't seen anything in the UHD >> api for that. Failing the ability to use timed commands with the Mictor >> connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines >> that I can run to an external device. >> >> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> >> wrote: >> >>> How does one access the output of the Mictor connector via the UHD API? >>> Calling get_gpio_banks() returns just RXA and TXA with no mention of FP0. >>> I have a breakout cable attached to the Mictor connector but my scope shows >>> no changes when I bit bang the pins. >>> >>> Thanks! >>> >> >> >

Oops, forgot the link: https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling <dmp250net@gmail.com> wrote: > I found this link [1] which says "*There's a debug port (MICTOR > connector) on the USRP2 (J301) which you can route signals to for > debugging. It's connected to the 32-bit wire "debug" in u2_core.v. Just > connect signals you're interested in to debug and use a logic analyzer.*" > > Modifying u2plus_core.v to have `assign debug = {io_tx, io_rx};` at line > 768 instead of `assign debug = 32'd0;` allows me to output values with > timed commands to GPIO. > > On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling <dmp250net@gmail.com> > wrote: > >> Oh, and I should mention that I am using the UBX-40 >> >> On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> >> wrote: >> >>> After further research it seems that the Mictor connector is called >>> 'debug' not GPIO. Can the Mictor connector be used for timed commands? If >>> so, how do I access those debug pins? I haven't seen anything in the UHD >>> api for that. Failing the ability to use timed commands with the Mictor >>> connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines >>> that I can run to an external device. >>> >>> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> >>> wrote: >>> >>>> How does one access the output of the Mictor connector via the UHD >>>> API? Calling get_gpio_banks() returns just RXA and TXA with no mention of >>>> FP0. I have a breakout cable attached to the Mictor connector but my scope >>>> shows no changes when I bit bang the pins. >>>> >>>> Thanks! >>>> >>> >>> >> >

So the next question is, could I harm anything by using all 32 bits for whatever I want? That is, do the UBX or N210 main board actually need to use those "GPIO" lines? On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling <dmp250net@gmail.com> wrote: > Oops, forgot the link: > > https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html > > On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling <dmp250net@gmail.com> > wrote: > >> I found this link [1] which says "*There's a debug port (MICTOR >> connector) on the USRP2 (J301) which you can route signals to for >> debugging. It's connected to the 32-bit wire "debug" in u2_core.v. Just >> connect signals you're interested in to debug and use a logic analyzer.* >> " >> >> Modifying u2plus_core.v to have `assign debug = {io_tx, io_rx};` at line >> 768 instead of `assign debug = 32'd0;` allows me to output values with >> timed commands to GPIO. >> >> On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling <dmp250net@gmail.com> >> wrote: >> >>> Oh, and I should mention that I am using the UBX-40 >>> >>> On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> >>> wrote: >>> >>>> After further research it seems that the Mictor connector is called >>>> 'debug' not GPIO. Can the Mictor connector be used for timed commands? If >>>> so, how do I access those debug pins? I haven't seen anything in the UHD >>>> api for that. Failing the ability to use timed commands with the Mictor >>>> connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines >>>> that I can run to an external device. >>>> >>>> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> >>>> wrote: >>>> >>>>> How does one access the output of the Mictor connector via the UHD >>>>> API? Calling get_gpio_banks() returns just RXA and TXA with no mention of >>>>> FP0. I have a breakout cable attached to the Mictor connector but my scope >>>>> shows no changes when I bit bang the pins. >>>>> >>>>> Thanks! >>>>> >>>> >>>> >>> >> >

 Oops, forgot the link:

 https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html
 <https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html>

 On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling
 <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

     I found this link [1] which says "/There's a debug port
     (MICTOR connector) on the USRP2 (J301) which you can route
     signals to for debugging. It's connected to the 32-bit wire
     "debug" in u2_core.v. Just connect signals you're interested
     in to debug and use a logic analyzer./"

     Modifying u2plus_core.v to have `assign debug = {io_tx,
     io_rx};` at line 768 instead of `assign debug = 32'd0;` allows
     me to output values with timed commands to GPIO.

     On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling
     <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

         Oh, and I should mention that I am using the UBX-40

         On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling
         <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

             After further research it seems that the Mictor
             connector is called 'debug' not GPIO.  Can the Mictor
             connector be used for timed commands?  If so, how do I
             access those debug pins?  I haven't seen anything in
             the UHD api for that.  Failing the ability to use
             timed commands with the Mictor connector, how can I
             get GPIO out of the N210 chassis?  I need 3-4 lines
             that I can run to an external device.

             On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling
             <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

                 How does one access the output of the Mictor
                 connector via the UHD API? Calling
                 get_gpio_banks() returns just RXA and TXA with no
                 mention of FP0.  I have a breakout cable attached
                 to the Mictor connector but my scope shows no
                 changes when I bit bang the pins.

                 Thanks!

On 03/26/2017 07:07 PM, Dave NotTelling via USRP-users wrote: > So the next question is, could I harm anything by using all 32 bits > for whatever I want? That is, do the UBX or N210 main board actually > need to use those "GPIO" lines? Some of the GPIO lines are "used up" in internal board-management functions, depending on the board. You'd have to consult the driver code and schematics to see which GPIO lines are used for actual functions on the daughtercards, etc. > > On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling <dmp250net@gmail.com > <mailto:dmp250net@gmail.com>> wrote: > > Oops, forgot the link: > > https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html > <https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html> > > On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling > <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: > > I found this link [1] which says "/There's a debug port > (MICTOR connector) on the USRP2 (J301) which you can route > signals to for debugging. It's connected to the 32-bit wire > "debug" in u2_core.v. Just connect signals you're interested > in to debug and use a logic analyzer./" > > Modifying u2plus_core.v to have `assign debug = {io_tx, > io_rx};` at line 768 instead of `assign debug = 32'd0;` allows > me to output values with timed commands to GPIO. > > On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling > <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: > > Oh, and I should mention that I am using the UBX-40 > > On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling > <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: > > After further research it seems that the Mictor > connector is called 'debug' not GPIO. Can the Mictor > connector be used for timed commands? If so, how do I > access those debug pins? I haven't seen anything in > the UHD api for that. Failing the ability to use > timed commands with the Mictor connector, how can I > get GPIO out of the N210 chassis? I need 3-4 lines > that I can run to an external device. > > On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling > <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: > > How does one access the output of the Mictor > connector via the UHD API? Calling > get_gpio_banks() returns just RXA and TXA with no > mention of FP0. I have a breakout cable attached > to the Mictor connector but my scope shows no > changes when I bit bang the pins. > > Thanks! > > > > > > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

 Thanks for that info.  I poked around and found

Marcus, Thanks for that info. I poked around and found https://github.com/EttusResearch/uhd/blob/release_003_009_004/host/lib/usrp/dboard/db_ubx.cpp#L165-L193. Are those the lines I need to be concerned about? One thing that doesn't make sense is that the tx_io bus ( https://github.com/EttusResearch/fpga/blob/593aae943b7d18e4e165ccd91a6b6581005e62e8/usrp2/top/N2x0/u2plus.ucf#L73-L88) is 16 bits wide while the number of bits in the cpp file is 19 to TX (if you add up all of the widths in ubx_v1_gpio_info for TX. Are there other GPIO lines somewhere? Am I not looking at the right thing? Thanks! On Sun, Mar 26, 2017 at 9:56 PM, Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On 03/26/2017 07:07 PM, Dave NotTelling via USRP-users wrote: > > So the next question is, could I harm anything by using all 32 bits for > whatever I want? That is, do the UBX or N210 main board actually need to > use those "GPIO" lines? > > Some of the GPIO lines are "used up" in internal board-management > functions, depending on the board. You'd have to consult the driver code > and > schematics to see which GPIO lines are used for actual functions on the > daughtercards, etc. > > > > On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling <dmp250net@gmail.com> > wrote: > >> Oops, forgot the link: >> >> https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html >> >> On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling <dmp250net@gmail.com> >> wrote: >> >>> I found this link [1] which says "*There's a debug port (MICTOR >>> connector) on the USRP2 (J301) which you can route signals to for >>> debugging. It's connected to the 32-bit wire "debug" in u2_core.v. Just >>> connect signals you're interested in to debug and use a logic analyzer.* >>> " >>> >>> Modifying u2plus_core.v to have `assign debug = {io_tx, io_rx};` at line >>> 768 instead of `assign debug = 32'd0;` allows me to output values with >>> timed commands to GPIO. >>> >>> On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling <dmp250net@gmail.com> >>> wrote: >>> >>>> Oh, and I should mention that I am using the UBX-40 >>>> >>>> On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> >>>> wrote: >>>> >>>>> After further research it seems that the Mictor connector is called >>>>> 'debug' not GPIO. Can the Mictor connector be used for timed commands? If >>>>> so, how do I access those debug pins? I haven't seen anything in the UHD >>>>> api for that. Failing the ability to use timed commands with the Mictor >>>>> connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines >>>>> that I can run to an external device. >>>>> >>>>> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com> >>>>> wrote: >>>>> >>>>>> How does one access the output of the Mictor connector via the UHD >>>>>> API? Calling get_gpio_banks() returns just RXA and TXA with no mention of >>>>>> FP0. I have a breakout cable attached to the Mictor connector but my scope >>>>>> shows no changes when I bit bang the pins. >>>>>> >>>>>> Thanks! >>>>>> >>>>> >>>>> >>>> >>> >> > > > _______________________________________________ > USRP-users mailing listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >

  Thanks for that info.  I poked around and found 

 On 03/26/2017 07:07 PM, Dave NotTelling via USRP-users wrote:

 So the next question is, could I harm anything by using all 32
 bits for whatever I want? That is, do the UBX or N210 main board
 actually need to use those "GPIO" lines?

 Some of the GPIO lines are "used up" in internal board-management
 functions, depending on the board.  You'd have to consult the
 driver code and
   schematics to see which GPIO lines are used for actual functions
 on the daughtercards, etc.

 On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling
 <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

     Oops, forgot the link:

     https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html
     <https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html>

     On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling
     <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

         I found this link [1] which says "/There's a debug port
         (MICTOR connector) on the USRP2 (J301) which you can
         route signals to for debugging. It's connected to the
         32-bit wire "debug" in u2_core.v. Just connect signals
         you're interested in to debug and use a logic analyzer./"

         Modifying u2plus_core.v to have `assign debug = {io_tx,
         io_rx};` at line 768 instead of `assign debug = 32'd0;`
         allows me to output values with timed commands to GPIO.

         On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling
         <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

             Oh, and I should mention that I am using the UBX-40

             On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling
             <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote:

                 After further research it seems that the Mictor
                 connector is called 'debug' not GPIO.  Can the
                 Mictor connector be used for timed commands?  If
                 so, how do I access those debug pins?  I haven't
                 seen anything in the UHD api for that.  Failing
                 the ability to use timed commands with the Mictor
                 connector, how can I get GPIO out of the N210
                 chassis?  I need 3-4 lines that I can run to an
                 external device.

                 On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling
                 <dmp250net@gmail.com
                 <mailto:dmp250net@gmail.com>> wrote:

                     How does one access the output of the Mictor
                     connector via the UHD API? Calling
                     get_gpio_banks() returns just RXA and TXA
                     with no mention of FP0.  I have a breakout
                     cable attached to the Mictor connector but my
                     scope shows no changes when I bit bang the pins.

                     Thanks!








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 USRP-users@lists.ettus.com  <mailto:USRP-users@lists.ettus.com>
 http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com  <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>

 _______________________________________________
 USRP-users mailing list
 USRP-users@lists.ettus.com <mailto:USRP-users@lists.ettus.com>
 http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
 <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>

On 03/26/2017 10:31 PM, Dave NotTelling wrote: > Marcus, > > Thanks for that info. I poked around and found > https://github.com/EttusResearch/uhd/blob/release_003_009_004/host/lib/usrp/dboard/db_ubx.cpp#L165-L193. > Are those the lines I need to be concerned about? One thing that > doesn't make sense is that the tx_io bus > (https://github.com/EttusResearch/fpga/blob/593aae943b7d18e4e165ccd91a6b6581005e62e8/usrp2/top/N2x0/u2plus.ucf#L73-L88) > is 16 bits wide while the number of bits in the cpp file is 19 to TX > (if you add up all of the widths in ubx_v1_gpio_info for TX. Are > there other GPIO lines somewhere? Am I not looking at the right thing? > > Thanks! The width fields for the GAIN functions appears to be set to "10" when in fact it's 6. This likely doesn't actually affect anything, but is conceptually a bug. If you look at the schematics, GPIO 8 on the TX unit is unused, and several on the RX unit are unused, but they aren't connectorized in any way. > > On Sun, Mar 26, 2017 at 9:56 PM, Marcus D. Leech via USRP-users > <usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>> wrote: > > On 03/26/2017 07:07 PM, Dave NotTelling via USRP-users wrote: >> So the next question is, could I harm anything by using all 32 >> bits for whatever I want? That is, do the UBX or N210 main board >> actually need to use those "GPIO" lines? > Some of the GPIO lines are "used up" in internal board-management > functions, depending on the board. You'd have to consult the > driver code and > schematics to see which GPIO lines are used for actual functions > on the daughtercards, etc. > > >> >> On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling >> <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: >> >> Oops, forgot the link: >> >> https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html >> <https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html> >> >> On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling >> <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: >> >> I found this link [1] which says "/There's a debug port >> (MICTOR connector) on the USRP2 (J301) which you can >> route signals to for debugging. It's connected to the >> 32-bit wire "debug" in u2_core.v. Just connect signals >> you're interested in to debug and use a logic analyzer./" >> >> Modifying u2plus_core.v to have `assign debug = {io_tx, >> io_rx};` at line 768 instead of `assign debug = 32'd0;` >> allows me to output values with timed commands to GPIO. >> >> On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling >> <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: >> >> Oh, and I should mention that I am using the UBX-40 >> >> On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling >> <dmp250net@gmail.com <mailto:dmp250net@gmail.com>> wrote: >> >> After further research it seems that the Mictor >> connector is called 'debug' not GPIO. Can the >> Mictor connector be used for timed commands? If >> so, how do I access those debug pins? I haven't >> seen anything in the UHD api for that. Failing >> the ability to use timed commands with the Mictor >> connector, how can I get GPIO out of the N210 >> chassis? I need 3-4 lines that I can run to an >> external device. >> >> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling >> <dmp250net@gmail.com >> <mailto:dmp250net@gmail.com>> wrote: >> >> How does one access the output of the Mictor >> connector via the UHD API? Calling >> get_gpio_banks() returns just RXA and TXA >> with no mention of FP0. I have a breakout >> cable attached to the Mictor connector but my >> scope shows no changes when I bit bang the pins. >> >> Thanks! >> >> >> >> >> >> >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com <mailto:USRP-users@lists.ettus.com> >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com> > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com <mailto:USRP-users@lists.ettus.com> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com> > >

 I hadn't thought about looking at the schematics for this issue.

  Thanks for that info.  I poked around and found https://github.com/

Marcus, I hadn't thought about looking at the schematics for this issue. Thank you very much!! -Dave On Sun, Mar 26, 2017 at 11:16 PM, Marcus D. Leech <mleech@ripnet.com> wrote: > On 03/26/2017 10:31 PM, Dave NotTelling wrote: > > Marcus, > > Thanks for that info. I poked around and found https://github.com/ > EttusResearch/uhd/blob/release_003_009_004/host/lib/ > usrp/dboard/db_ubx.cpp#L165-L193. Are those the lines I need to be > concerned about? One thing that doesn't make sense is that the tx_io bus ( > https://github.com/EttusResearch/fpga/blob/593aae943b7d18e4e165ccd91a6b65 > 81005e62e8/usrp2/top/N2x0/u2plus.ucf#L73-L88) is 16 bits wide while the > number of bits in the cpp file is 19 to TX (if you add up all of the widths > in ubx_v1_gpio_info for TX. Are there other GPIO lines somewhere? Am I > not looking at the right thing? > > Thanks! > > The width fields for the GAIN functions appears to be set to "10" when in > fact it's 6. This likely doesn't actually affect anything, but is > conceptually a bug. > > If you look at the schematics, GPIO 8 on the TX unit is unused, and > several on the RX unit are unused, but they aren't connectorized in any way. > > > > > > > On Sun, Mar 26, 2017 at 9:56 PM, Marcus D. Leech via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> On 03/26/2017 07:07 PM, Dave NotTelling via USRP-users wrote: >> >> So the next question is, could I harm anything by using all 32 bits for >> whatever I want? That is, do the UBX or N210 main board actually need to >> use those "GPIO" lines? >> >> Some of the GPIO lines are "used up" in internal board-management >> functions, depending on the board. You'd have to consult the driver code >> and >> schematics to see which GPIO lines are used for actual functions on the >> daughtercards, etc. >> >> >> >> On Sun, Mar 26, 2017 at 6:20 PM, Dave NotTelling <dmp250net@gmail.com> >> wrote: >> >>> Oops, forgot the link: >>> >>> https://www.mail-archive.com/usrp-users@lists.ettus.com/msg00244.html >>> >>> On Sun, Mar 26, 2017 at 6:18 PM, Dave NotTelling <dmp250net@gmail.com> >>> wrote: >>> >>>> I found this link [1] which says "*There's a debug port (MICTOR >>>> connector) on the USRP2 (J301) which you can route signals to for >>>> debugging. It's connected to the 32-bit wire "debug" in u2_core.v. Just >>>> connect signals you're interested in to debug and use a logic analyzer.* >>>> " >>>> >>>> Modifying u2plus_core.v to have `assign debug = {io_tx, io_rx};` at >>>> line 768 instead of `assign debug = 32'd0;` allows me to output values with >>>> timed commands to GPIO. >>>> >>>> On Sun, Mar 26, 2017 at 1:43 PM, Dave NotTelling <dmp250net@gmail.com> >>>> wrote: >>>> >>>>> Oh, and I should mention that I am using the UBX-40 >>>>> >>>>> On Sun, Mar 26, 2017 at 1:41 PM, Dave NotTelling <dmp250net@gmail.com> >>>>> wrote: >>>>> >>>>>> After further research it seems that the Mictor connector is called >>>>>> 'debug' not GPIO. Can the Mictor connector be used for timed commands? If >>>>>> so, how do I access those debug pins? I haven't seen anything in the UHD >>>>>> api for that. Failing the ability to use timed commands with the Mictor >>>>>> connector, how can I get GPIO out of the N210 chassis? I need 3-4 lines >>>>>> that I can run to an external device. >>>>>> >>>>>> On Sun, Mar 26, 2017 at 1:17 PM, Dave NotTelling <dmp250net@gmail.com >>>>>> > wrote: >>>>>> >>>>>>> How does one access the output of the Mictor connector via the UHD >>>>>>> API? Calling get_gpio_banks() returns just RXA and TXA with no mention of >>>>>>> FP0. I have a breakout cable attached to the Mictor connector but my scope >>>>>>> shows no changes when I bit bang the pins. >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >> >> >> _______________________________________________ >> USRP-users mailing listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> > >