Clyde

Members
  • Content Count

    51
  • Joined

  • Last visited

About Clyde

  • Rank
    Frequent Visitor

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Hi, I installed the version for 2017.4, and that install had a failure, but completed. The failure was not due to dependencies. Petalinux would run, but during the project build it had what appeared to be internal software errors. Clyde
  2. The last post was sitting in my browser... and not posted until just now. I have a fresh copy of UG1144 for 2017.4. I read on the internet that in order to tell what version of Petalinux you have installed, to issue this command cat $PETALINUX/.version_log https://unix.stackexchange.com/questions/379242/how-to-know-the-petalinux-version and it says I have 2019.2, which is not what I desire. So, I am going to try a new, fresh install. I have verified the installation requirements are met. Clyde
  3. Hi, Thank you for the pointed questions. I think they are on target and will help me move forward. Sorry for the delay in my answer as I have been busy with other Zynq stuff. First, I cannot find the folder .petalinux/metadata. I looked in "my computer" and turned on hidden folders, but I am clearly not looking in the right place. So I don't know what version for petalinux is in that folder. When I downloaded the distribution, and that was a few months ago, I likely chose the latest version, guess is 2019.2. I have since read that it makes sense to use the version which goes with the version of Vivado you are using, so, how do I get the proper version of the distribution for Vivado 2017.4 and get it in the right place? I mostly used UG980 to get me started with the Petalinux build. I found it confusing as to what directories were in play where. When I figured this all out, I made a shell script so I don't have to remember the commands. In that script, I delete the folder that is is being used to build linux in, so, build -x mrproper probably does not help. There are no old files lying around. I start fresh every time. I tried it anyway. I did not make any changes to the petalinux install directory. I am not that smart. I believe this should mostly work out of the box without futzing around with the petalinux install. I believe my problem is the wrong version of the distribution, but as stated above, verifying this and fixing it is where I think I am stuck. It mostly builds but fails at the end. Attached is a screenshot of the build error message. Thank you for your time and kind assistance. Clyde
  4. A pencil sketch of the schematic would be great for readers to help you. Does not need to be elegant and you can shoot it with a smart phone. Include the power supply please. Clyde
  5. Hi, Thank you for the pointed questions. I think they are on target and will help me move forward. Sorry for the delay in my answer as I have been busy with other Zynq stuff. First, I cannot find the folder .petalinux/metadata. I looked in "my computer" and turned on hidden folders, but I am clearly not looking in the right place. So I don't know what version for petalinux is in that folder. When I downloaded the distribution, and that was a few months ago, I likely chose the latest version, guess is 2019.2. I have since read that it makes sense to use the version which goes with the version of Vivado you are using, so, how do I get the proper version of the distribution for Vivado 2017.4 and get it in the right place? I mostly used UG980 to get me started with the Petalinux build. I found it confusing as to what directories were in play where. When I figured this all out, I made a shell script so I don't have to remember the commands. In that script, I delete the folder that is is being used to build linux in, so, build -x mrproper probably does not help. There are no old files lying around. I start fresh every time. I tried it anyway. I did not make any changes to the petalinux install directory. I am not that smart. I believe this should mostly work out of the box without futzing around with the petalinux install. I believe my problem is the wrong version of the distribution, but as stated above, verifying this and fixing it is where I think I am stuck. It mostly builds but fails at the end. Attached is a screenshot of the build error message. Thank you for your time and kind assistance. Clyde
  6. Here is a link to a good article on sine tone generation which talks about doing it without a table. I have done this myself in a DSP. Should be simple enough in an FPGA. http://www.claysturner.com/dsp/1st_OSC_paper.pdf HTH Clyde
  7. The Zynq is an amazing device. Early on I was going to blink an LED with a loop in C on one of the processors. So, I put a delay loop for (i=0; i< 10000; i++) etc. I had to make the delay counter a billion! I still have a lot to learn. Countless hours of entertainment. CRS
  8. Thank you for the reply. I am WFH and putting together a build that will run on Ultrascale hardware at work, and I thought I would try the simple version at home. Not a big deal. I can still prove the concept. While we are here, is it possible to access the MII interfaces from the PL fabric on the Zynq device, if one disables their use from the ARM processor? I have read the Technical reference manual, but there is a lot of material to digest there. Clyde
  9. What I/O standard should I select if I want to drive a high speed PMOD port differentially? and for Receive? It seems like with Vcco at 3.3V this is not possible with the native I/O buffers. Clyde
  10. Sorry, I will rephrase my question with much more detail and clarity, but for now, one thing that I don't understand is Petalinux seems to be grabbing Yocto files in the build that go with a later version of Vivado. That is, from 2019.2 when I am using 2017.4. Again, I will will spell out exactly what I am doing and where it falls apart. So much is right... it just dies at the very end of the build, so, I am very close and I have a whole lot correct.
  11. Clyde

    Pmod Connector

    Well, then, if you want a crimp terminal that goes into a housing, I would recommend Harwin for this kind of thing. I don't have a part number, but they make the receptacle that is a single, goes on the 0.025 post, with crimp terminals. This is the connector you see on JTAG programmers. My bet is that Harwin makes the compliment, with pins. Clyde
  12. Clyde

    Pmod Connector

    Go with the Sullins part above. If you want a board designed... let me know.
  13. I was wondering if he ever found replacement hardware for his application. I'd be interested in do a similar design if he wanted to entertain that, custom, the way he wants it. I did my own shield for the arty for audio in and out. Clyde
  14. Perhaps a schematic, part number or block diagram would help users help you.
  15. I wish I could at the very top level of the forum section have the option to search for posts by date, specifically most recent. I have received help from the forum and would like to give back... but so many posts are so old, they are not relevant most likely. Maybe this feature exists, but it is not obvious to me. Clyde