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Found 22 results

  1. Hi everybody! I got a new Digilent Cmod S7 Board (Spartan 7) and after some led blinking I'm trying to program a simple High Speed SPI transmitter (just sending "01010101" for the first attempt). For this I used the Vivado Clock-Wizzard to generate both a 300MHz clock (for internal signals) and the 150MHz SPI Clock itself out of my 12 MHz onboard oscillator using the "MMCM" and basically the standard settings. Now, my problem is, when I connect my Logic Analyzer (Digilent Digital Discovery) to the 150MHz SPI Serial Clock Pin (Pin 3, which is Package Pin M3) the Duty C
  2. Hello, I have an aoutomatic test equipment(ATE) that contains a BSCAN device. In order to test that device I have picked a Cmod C2:Breadboardable CoolRunner-II CPLD Module and put it into my selftest adapter (ITA). The only thing I want to do is running a connection test to Cmod C2. But I need the netlist of Cmod C2 otherwise I cannot create a BSCAN project(using XJTAG). Can you please provide the netlist? I can submit my company information and anythişng else that required. Thanks in advance. Furkan.
  3. How do I implement an external differential clock in VHDL for the CMOD S7? Vivado keeps on telling me to inset this flag in my constraint file: set_property CLOCK_DEDICATED_ROUTE FALSE However, I care about timing because it's an external clock signal. I'm using a clock dedicated route(Pmod pin are 2×6) as seen in this schematic.
  4. TireV

    Cmod S6 - Multilayer?

    Hello all together, I'm working on a CmodS6 board for my university course right now. It'd be helpful to now something about the layer design of the Board. I assume it's a multilayer PCB, so at least 1 layer between front and back side, but can anyone tell me something more about it? e.g. common ground plate yes/no? Hope these information are not somehow confidential or protected, then never mind my question :) Thanks for any input!
  5. DigitalConfig

    Arty CMOD HUB

    Its great that DIgilent Has a Bread boardable PCB Mountable version of the ARTY (THE CMOD Version). However, It price doesn't reflect a true stripped down simplification. I am wondering if DIgilent might consider stripping the CMOD version down even further such that its cost could be reduced further such that a HUB of many CMODs where only USB/JTAG FPGA FLASH and GPIOS would be needed and could be implemented at a minimal price. I believe such a product would increase product demand, and of course meet my needs as well as others. Such a device would result in a true PIP universal
  6. etownsend

    Cmod A7 Clocking

    The schematic diagram for the Cmod A7 shows a clock with part number ASEM1-100.000MHZ-LC-T, which is a 100MHz clock. However when I look at the actual clock component it says it's 12MHz chip, which I confirmed by scoping the output. Is there any way to get a 100MHz clock signal out of this board?
  7. I am trying to implement a simple JTAG chain in a Cool Runner II development board. I am taking various TDI and TDO signals and routing them in the CPLD depending on what FPGAs are powered on. I see that the CMOD CPLD board provides headers for the clock pins but no actual clock. Can I run a design without a clock if it's just simple switches inside the CPLD to interconnecting TDI and TDO signals?
  8. All: I'd like to get your thoughts on the following question: In, page 9. The Analog input circuit describes using a voltage divider to step a 0 to 3.3 range to 0 to 1 as required by the analog inputs. What I am also noting (and have measured) is that the input has a 3.3K impedance. I've been trying to get a TMP36GZ temperature monitor to work with this input and now suspect based on this temperature sensor's spec that the 3.3K draws too much current for this high impedance device. Has anyone else had any
  9. Hi, could it be possible to have the source code of the mentioned bootloader? I mean the one used to generate chipKIT_Bootloader_Cmod.hex
  10. Hello, I am using a chipKIT CMOD design and can successfully run the watchdog timer code provided my Majenko. My problem is that I occasionally get a nasty burst of electrical noise from a motor that completely freezes up the board. The 8MHz oscillator continues to run, and it resets correctly with a power cycle. Is there a mode that would prevent the watchdog from resetting the system? Thanks in advance Patrick
  11. I spotted a question on Stack Exchange's electronics forum regarding symbols in the A7's schematic … I'm not the original poster, but I'm now very curious too – what do those coloured blocks on certain groups of pins mean?
  12. Shana

    Cmod A7 uart problem

    Hello, I'm working with the Cmod A7 but I have a problem with uart communication I need to send data continously to pc for about 3 to 4 days During the test the COM port its suddenly disconected and no more serial data it's received on PC I used also external power source but I had the same problem, the maximum time I've reached it's around 4 hours Do you have any idea or suggestions to solve this problem?
  13. Hi,Even though I think this board should be towards questions about Digilent boards specifically, see if you can help me (I tried Xilinx forums without success). I am using the XADC's Vaux4 and Vaux12 on my Cmod A7. However, I'm having difficulties implementing the simultaneous sampling function using the XADC Wizard (Vivado 2016.2). From the wizard I get the ADC module with one address_in "pin" and one data_out "pin". My question is, if it is sampling both pairs simultaneously, how do I access the data? Wouldn't it be necessary to have two data outputs, one for each pair? How does it work?
  14. Hello guys, this question is aimed primarily at Digilent staff but if anyone has an answer, I'm not choosy :-) I just got a CMOD A7 and I'm bringing it up by going through simple projects and tutorials. I'm stumped by this one : I've followed it to the letter, but reality diverges from the internet at step 13. There is nothing in my SDK's "Run As" menu. Why is that, and how can I fix this ? The whole tutorial never mentions the reset signal : how is it generate
  15. I am a Project Lead the Way teacher using the CMOD S6 chips during labs for most of 2nd semester. Our curriculum is designed to use these chips as a bundle with the NI MyDAQ system. I have been doing electronics for a while and understand how touchy CMOS logic can be, but I am burning through these chips weekly. I'm not sure what I'm missing here or if I received a bad batch of chips, but I have students avoiding touching the chips completely at this point, as well as having static wrist straps on. They do no wiring while the chip is powered on, and have them grounded to the board when we
  16. Hello! I have students trying to use MSI down counters in multisim, and programming them to the CMOD S6. In simulation, we aren't experiencing any ripple issues, but when we transfer to the CMOD S6, the counters reset at 0111 instead of waiting until 1111. I've attached the multisim file. We've tried putting a series of inverters on one of the outputs of the counter to see if it would "slow" the bit enough to prevent the trigger, but it doesn't really seem to be working. Any assistance would be greatly appreciated! Thanks! RippleIssue.ms12
  17. Hello there, as far as I know all PIC32 chips have integrated RTCC capabilities. On the Uno32 board RTCC can be used after soldering an oscillator to a spot for it marked as X2. What about the CMOD board? It has a PIC32MX150F128D, but I am unable to find the location reserved for soldering in the oscillator. So my question - how does one use RTCC with the Chipkit CMOD microcontroller module? Thank you in advance!
  18. wheezs

    cmod 6 clock

    hey i cant finger out how to get the internal clock to use in projects
  19. rmrosnik

    Cmod S6

    Good Afternoon, We are Project Lead the Way School using the Cmod S6 for the first time this year. We are having issues with these items working. They have been very reliable for the past month. However, the small red LED light does not show power. They are no longer working. Is there a fix I can do or who do I send them to for either a replacement or repair?
  20. HI, I am trying to figure out if the OLED Pmod can work with the chipKIT Cmod. Code was taken directly off the Pmod OLED web page. In one version of the demo code -- the Cmod is not mentioned. oledlibrary1 by laraswanland, on Flickr IN a near identical version (on the same page), the Cmod IS mentioned. oledlibrary2 by laraswanland, on Flickr Both demos have OLEDdemo as the sketch. Neither of them work when I have the Pmod OLED plugged into J1 of the Cmod. Can someone take a look at which library is correct? and if the Pmod OLED can work with the Cmod?
  21. Hi everyone, I am working on a pinmap for the Cmod and am interested to get suggestions on what signals are the most useful. These are the ones I felt I needed, but I have a few extra lines I can add a few more!
  22. Using the PmodOLED and the chipKIT Cmod-- I was able to make the file work on my work-Windows PC I downloaded the newest file from the webpage (thanks to previous post:) and got the library into my sketchbook folder. However, when I tried to compile on my home MacBook, I kept getting this error: Uninstall, reinstall MPIDE. Delete all libraries. Reinstall it again. Then, went to the MPIDE Icon, held down Control+ click and went to "Show Package Contents" Which then I navigated to Contents->MacOSX>Resources>Java>Hardware>pic32>compiler>pic32-tools>include>