Have you defined that GPIO as an output in the mask register? On Fri, Apr 26, 2019 at 9:01 AM Chatterjee, Pratik via USRP-users < usrp-users@lists.ettus.com> wrote:
> Hi Jonathan, > > I have a question regarding fpga and rfnoc. I am trying to set a 1'bit > value on one of the registers in my noc_block and send the value out the > remapped gpio pins. I haven't been able to see the value on my gpio pin. > Although declaring the register in the custom gpio file I do see the > output. Appreciate any insights as to why such a thing is happening. > > Thanks, > Pratik > > ------------------------------ > *From:* Chatterjee, Pratik > *Sent:* Sunday, February 3, 2019 9:31 PM > *To:* Jonathon Pendlum > *Cc:* usrp-users@lists.ettus.com > *Subject:* Re: [USRP-users] RFNOC GPIO Remapping > > Thank you Jonathon for your help. I had modified some sections of the file > x300_db_fe_core.v which was causing the error. I was able to compile an > unmodified image without error. > ------------------------------ > *From:* Jonathon Pendlum <jonathon.pend...@ettus.com> > *Sent:* Saturday, February 2, 2019 7:02 PM > *To:* Chatterjee, Pratik > *Cc:* usrp-users@lists.ettus.com > *Subject:* Re: [USRP-users] RFNOC GPIO Remapping > > Hi Pratik, > > That error generally means that the RFNoC block did not response to a > command packet. That happens when the block is not correctly connected to > the crossbar or the clocks are not connected. In this case it is the Radio > Core RFNoC block, which by default is correctly connected unless modified. > Did you make any modifications to the Radio Core RFNoC block I/O, either in > the source file or the instantiation in x300_core.v? > > Also as a sanity check, are you able to build an unmodified image that > works without that error? > > Jonathon > > On Sat, Feb 2, 2019 at 3:10 AM Chatterjee, Pratik via USRP-users < > usrp-users@lists.ettus.com> wrote: > > Hello, > > I am using an X310 and I need to monitor a signal out of GPIO from my > custom block. Going through the archives I prefer the option to disconnect > the fp_gpio lines from the radio core to my custom block. So I snapped the > fp_gpio lines going in gpio_attr to a custom module in db_control to > observe the signal. The image compiled fine. But when I probe the device, I > get the following error > > [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; > UHD_3.14.0.HEAD-110-g6af6ac32 > [INFO] [X300] X300 initialization sequence... > [INFO] [X300] Maximum frame size: 8000 bytes. > [INFO] [X300] Radio 1x clock: 200 MHz > [INFO] [GPS] No GPSDO found > [INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: > 0xF1F0D00000000000) > [INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1315 MB/s) > [INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1309 MB/s) > [INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001) > terminate called after throwing an instance of 'uhd::io_error' > what(): EnvironmentError: IOError: [0/Radio_0] sr_write() failed: > EnvironmentError: IOError: Block ctrl (CE_01_Port_40) no response packet - > AssertionError: bool(buff) > in uint64_t ctrl_iface_impl<_endianness>::wait_for_ack(bool, double) > [with uhd::endianness_t _endianness = (uhd::endianness_t)0u; uint64_t = > long unsigned int] > at /home/delta3/rfnoc3/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:155 > > Is there something more than just disconnecting the lines. Any help will > be appreciated. Thank you, > > Pratik > > _______________________________________________ > USRP-users mailing list > 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 > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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