[Discuss-gnuradio] USRP2 General I/O
Is there a general I/O port on the USRP2? I was told there was, but the only thing I can find is the 20-pin unused port on the granddaughter board. If this is a G-I/O port is it accessible from the GNU-Radio software, and which pins are available for use? I took a look at the schematics at http://code.ettus.com/redmine/ettus/attachments/52/simple_gdb.pdf and I haven't been able to figure out what the 20-pin port (J15) would be used for (unless there is a possibility of a 'great granddaughter board'). Any push in the right way would be appreciated, Brenden Smith ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] USRP2 General I/O
I guess there's a search function for a reason; I have found a similar question in the archives and I believe I have found a suitable answer. Sorry for the waste of time. On Wed, Jul 6, 2011 at 11:09 AM, Brenden Smith bcsmith2...@gmail.comwrote: Is there a general I/O port on the USRP2? I was told there was, but the only thing I can find is the 20-pin unused port on the granddaughter board. If this is a G-I/O port is it accessible from the GNU-Radio software, and which pins are available for use? I took a look at the schematics at http://code.ettus.com/redmine/ettus/attachments/52/simple_gdb.pdf and I haven't been able to figure out what the 20-pin port (J15) would be used for (unless there is a possibility of a 'great granddaughter board'). Any push in the right way would be appreciated, Brenden Smith ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] USRP2 General I/O
I guess there's a search function for a reason; I have found a similar question in the archives and I believe I have found a suitable answer. Sorry for the waste of time. Then why dont you post the link to the answer in here? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] USRP2 General I/O
On 06/07/2011 12:16 PM, Brenden Smith wrote: I guess there's a search function for a reason; I have found a similar question in the archives and I believe I have found a suitable answer. Sorry for the waste of time. There are no stupid questions, only stupid answers :-) There are 16 general-purpose I/O lines for each of TX and RX on a daughtercard, although in *many* instances, some of these are chewed up by internal functions. For the WBX, J15 carries GPIO signals on the granddaughter board. The signals it carries are: o GPIO - RX4-7 and RX14,15 o GPIO - TX5 and TX8-15 As well as AUX_DAC_C_RX and AUX_DAC_A_RX For other daughtercards, the GPIOs that are available for use vary quite a bit, and you have to be *very* careful not to change GPIO settings for pins other than the ones that are freely-available. The GPIO control functions in UHD are described here: http://www.ettus.com/uhd_docs/doxygen/html/classuhd_1_1usrp_1_1dboard__iface.html ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
