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Recent content by sachingorkhe

  1. S

    request _FPGA_object_tracking

    Hi, You need to check following points b4 chose any FPGA. 1. How much is the frame size? 2. What is the resolution has been targeted? 3. How much BRAM in the FPGA to process frames? --> Though you are using external memories like DDR/SRAm/Flash etc. You atleast need 2-3 frames to be stored...
  2. S

    help me in interconnecting two verilog modules

    Lower LSBs of 1st module can be connect to LSBs of the 2nd module. You can connect at top level module as per the following - out(36:28) => E(8:0); out(27:19) => C(8:0); out(18:10) => B(8:0); out(9:0) => A(8:0); Hope this helps. ~Sachin
  3. S

    error on VHDL program....please help me...=)

    You need to add unsigned library for using signed/unsigned numbers to be used in your code. Also try to use '(' brackets to complete any expression bonding. ~Sachin
  4. S

    what are the parameters to choose an FPGA?

    Hi, - First check how complex is your design. - Then try to check if this complexity are ready to use .. i mean any IP which can be easily implemented available freely with FPGA vendors. - What will be you maximum frequency targeted? - check how much IO would be required and their standard? -...
  5. S

    how to fix setup violations

    5ns is quite high. Did you check post-synthesis simulation? If not then try to run and check the worst case scenarios.
  6. S

    Guideline for troubleshoot xilinx ic

    Is there any error msg flashing on the screen whn trying to detect ur FPGA? If so then whts that? also check also prgble cable which one u used.
  7. S

    how fix hod time in FPGA?

    setup hold time clock to out fpga Hold is at highest priority then Setup. FPGA can not perform or fails to operate if HOLD violations remains in the design. The Setup violations directly gives the best operating frequency of the FPGA (performance). Setup violations are broadly classifies based...
  8. S

    How to calculate the depth of FIFO and what are the designs contraints for it?

    Re: Depth of FIFO hi guys, here is the link where from subramaniam copied and paste the reply. https://www.asic-world.com/tidbits/fifo_depth.html Subraman - please try to post the answer by ur explanation otherwise provide direct link if u have any.
  9. S

    confuse to select between VHDL or Verilog.

    hi Ya both are easy & simple. If you are familiar with C coding then go for verilog, otherwise VHDL. As of my experience you can start with VHDL. regards, Sachin
  10. S

    [SOLVED] ISP programming of PROM in slave serial mode. is it possible

    Re: ISP programming of PROM in slave serial mode. is it poss There are 3 classical ways to configure your FPGA: 1) You use a cable from your PC to the FPGA, and run a software on your PC to send data through the cable. 2) You use a microcontroller on your board, with an adequate firmware to...
  11. S

    Help me add a clock feedback to FPGA interfacing with ZBT

    SRAM Interface what a response of this thread? After a 1.7 years? good going
  12. S

    What are the factors that increase Clock Path Skew?

    Clock Path Skew Any buffers within the clock paths could also increase your skew to destination FFs.
  13. S

    [SOLVED] ISP programming of PROM in slave serial mode. is it possible

    Hi Ahmed, Plz clear what exactly you wanna to do with PROM? How will you load your PROM at initial bring up? other than ISP? Sachin
  14. S

    Help me write a VHDL code for a down counter

    vhdl help Hi Balakrishna, Plz put a if condition like, if count = 0 then pulse <= '1'; else pulse <= '0'; end if; This condition should be under the clock, which you are going to use. With this condition your pulse would be equal to one clock duration for high. Please try this and let...
  15. S

    init pin injtag programming for spartan

    Hi ahmedagha, For your 1st query, I would say 'No' for PP-III connection, you did not worry about INIT pin for Slave serial connection. But this INIT pin of FPGA must be connected to processor or controller which ever you are going to use. See datasheet of Spartan for this connections. (see...

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