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Found 6 results

  1. Hello, I have a new open logger and want to put it to use soon. I have a couple of issues. I'm hoping Digilent can respond. First, I cannot update firmware from ubuntu ... I have a windows 10 partition and have used that, but that is a pain. When will the linux system function normally? Second, I want to log some data using wifi as having a usb cable attached is not an option in my application. I cannot get the thing to connect to my system or even show any wifi networks. This happens in linux and windows. When will I be able to connect this way? Finally, will I be able to log to the sd card in a headless way? That is can I configure the system to start logging on power up or something like that? This device has great potential, but these kind of things need to be sorted out and documented clearly Thank you. Steve
  2. Amin

    Custom Image Processing on Zybo-Z7 20

    I am doing an image processing (not video) with Zybo Z7, and I am writing my own algorithm in C and C++ language for the image processing algorithm. For the simulation (without camera), I have some ready photos that can be loaded from SD card and then I want to test the performance of my algorithm on. I know Xilinx provide xsdps driver for the SD card, but I don't know how to use it for my project. But For the real application, the image processing will be done on the photos that are taken regularly by a camera. My priority, for now, is to first test my code using simulation. Could someone provide me a tutorial or a sample project? All the tutorials on the internet are about processing Video (not simple images)
  3. osmaan_khan

    Sd card read/write

    Hi, I am new to fpga. I am trying to read/write from sd card zusing the zybo zynq 7000 and I found the Xillfs example. For some reason the mkfs function always fails. I don't know if there is a problem with my design? I have enabled the sd0 in zynq processing system. Is the something else I should do? Any help is appreciated.
  4. Howdy to the Digilent-using people, Tony Barry writing. I am new to FPGA, but have a fairly strong background in EE and microcontrollers, C and assembler (mainly x86 but also Atmel AVR). My project is pro-bono for the amateur astronomy (occultation observing) community. Briefly, the occultation community observe the passage of asteroids in front of (generally dim) stars, and time the moment of eclipse and the moment of reappearance using strict UT timestamps to determine the position and possibly the shape of the asteroid from the knowledge of the time of the event, and the position of the observer on the earth. This information is passed on to the Minor Planet Center in Arizona for making improved ephemerides of asteroids, and sometimes to other science folk for various reasons. One recent occultation that gained some press was that of 2014 MU69 (the next target for the New Horizons probe after Pluto). You can read the story in the science press here:- Anyway, on to the point of this post. The limiting factor in occultation observing is the ability to see the target star (yes, that's obvious ... ) and there are two determinants of how dim a star you can see. Dimmer stars require bigger telescopes, and/or higher quantum efficiency cameras with lower noise. Amateurs do not have access to the budgets of professional scientists, so the telescope size is limited both by cost and by the ability to physically move a large heavy telescope. The camera cost is also limited. Within these constraints, it has been found that (arguably) the Watec 910BD board camera is pretty well the best (it was *not* used by the Johns Hopkins guys, but that's their story). However, the BD has some issues. The biggest issue is that it is a composite analog video camera (and that's ugly). Analog video really ought to be in the museums of this world ... but the cam can detect magnitude dimmer stars than comparable or more costly digital devices. However, the cam does have a digital video port, whose behaviour is documented, and this is the subject of this post. I would like to interface to this port. It is a BT.656 lookalike, which runs at a slightly higher clock speed (28.7MHz, vs 27MHz for standard BT.656) with 8 bits of data and two signal lines for vertical and horizontal blanking. 3V3 signalling and data. I need to pull in at least 16 frames (i.e. 756 bytes = 1 line x 525 lines = 400kB * 16 frames = 6.5MB storage) from this port, and do some arithmetic on those frames (basic averages, stats, etc), then shovel them into a UHS SD card or SSD local storage. It would be nice to have enough horsepower to do DAC and create some composite video out as a sanity check and local monitor. Now ... what kind of FPGA do I need to do this ? 1. Can run at more than 30MHz clocking in 8 bit parallel data. 2. Can store 10MB on board, and retrieve 1MB / sec from that store. 3. Can write 1MB / sec to an 8-bit DAC (the DAC can be an add-on, does not need to be on-board for this task). 4. Can write 1MB / sec to an UHS SD card (the socket can be off-board too). 5. Can run on 3V3. 6. Should not consume too much power. 10-12W would be around the maximum. 7. Cost is a consideration. Ideally, the FPGA would be less than $150 due to budget constraints. Well, that's my story. If anyone has some thoughts on the matter, please feel free to advise. Regards, Tony Tony Barry Sydney, Australia
  5. RonaldMcTramp

    SD card trouble in Zybo

    Hello, Could anyone tell me how I need to format my 32Gb SD card to enable my Zybo to boot from it. Are there any constraints? I created a 1Gb FAT32 partition and placed my Petalinux generated BOOT.bin and image.ub. Then I power cycle the board and ensure the jumper is on SD card and nothing happens. Its as if the card is not read. Trying the same with the SPI flash memory works, so the problem isn't in the BOOT.bin. I suspect it is the partition. Much appreciated!
  6. Hi, I liked my WF32 so much i bought a uC32 and a Wi-Fire. Had a little issue with the uC32 board but got that resolved in an other post. Now the Wi-Fire will not read the SD Card but the WF32 can. The wi-Fire can connect to the network but cannot display a server page as it fails to initialize or read the SD card. I have been looking all over the forums for info but cannot find any info i understan about the Wi-Fire and SD card. Is there a simple way to test to see if my problem is software or hardware. I was using the deWebIOServer packare I found with an WF32 instructable. This works well with the WF32 and the wifi part works with the Wi-Fire also but not the SD Card part. I went out and purchased mor SD cards. the original was a 'Kinston 32GB micro SD HC I'. the 2 new ones are 'Kinston 16 GB misro SD HC I'. they all work with the WF32 but non work with the WI-Fire. I used the SD example from the SD library and changed the SS from 4 to 52 and can read all the SD Cards with the Wi-Fire. Now does any body know why it does not work in the deWebIOServer server example? It also uses the SD library and SS is set to 52 by default. Luc