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Recent content by tzushky

  1. tzushky

    [Cadence NCVHDL] Generate several libraries and use them

    Hello, Still not getting the hang of this so asking you guys: I have several files in a project which I have compiled in different libraries. (Using Cadence IUS). My problem is that if I do : lib my_lib1; use my_lib1.my_entity_from_lib1; in a file which will be compiled in my_lib2... it...
  2. tzushky

    [VHDL] Read Stimuli file in VHDL

    vhdl stimulus OK, I finally got it, I was saying silly stuff before, because I thought the textio package in the std library would be replaced by the ieee. std_logic_textio... Thanks for clearing that up, I also added a line variable in my read process and extract the std_logic vectors I need...
  3. tzushky

    [VHDL] Read Stimuli file in VHDL

    read vhdl Could you elaborate a little more? Doesn't using this package give me a string interpretation of the value sin the file instead of a direct std_logic(_vector) that I need? Added after 32 minutes: Plus, I need to use thte Synopsys library obviously, and the std.textio seems to...
  4. tzushky

    [VHDL] Read Stimuli file in VHDL

    vhdl read Hello again, I have been looking throuhg Ashenden's Deisgner Guide to VHDL for file reading in VHDL. I thought it is the best way to drive test becnh signals: have a stimuli file read in the test bench entity and give values to the different needed signals at every clock event. My...
  5. tzushky

    FPGA design detail questions

    Thanks, I looked through them but I still have design doubts. I solved my memory problem however, Thanks ;)
  6. tzushky

    FPGA design detail questions

    Thanks for the advice, I had thought of that, that is why i was turning to you to get actual book names or tutorial sites ... So, couldyou give me some examples? t
  7. tzushky

    FPGA design detail questions

    fpga design model questions Hello, i am currently struggling to discover to build a complete fpga top for the system I need. first of all I know what I want it to do but i don't quite have fpga habits to get there as i should. My basic questions are of the sort: I know i need an SRAM...
  8. tzushky

    PCI handler R/W correct operations

    Hello everyone, My question should be simple in formulation but I have not been able to find a right answer so far so I'm bothering you people:). I am developing an application for debugging a wireless embedded equipment. You just need to know that it is interfaced by PCI with the computer...
  9. tzushky

    [Python] Imports and heritage

    Hello, I really hope there's someone here who has a little more insight than me. I've been working with python for a while now, but i've stumbled upon something which seems really simple compared to what i've been solving. The context doesn't really matter, it's for testing an embedded WLAN...
  10. tzushky

    quick C question - typedef u_char array and its pointer

    u_char in c hello everyone i have a small C manipulation problem. u_char is the typedef of unsigned char. Used for bytes. I define a MAC address as typedef u_char mac_address[6]; and later in main() i have a pointer mac_address *mac_src; which will be assigned a value using a pointer...
  11. tzushky

    Questions on X ray image detection

    X ray Image Detection Hello everyone, I have some questions about how to detect and segment an image obtained by X raying an object. Inside it there are rectangular objects which need to be measured. The cutting and selecting works fine, I am just looking for some literature on non-destructive...
  12. tzushky

    what is the value of the function

    OK, since I have posted things before here, I feel like clearing up the air... First of all , I hope you are all aware that the person who posted this topic is no longer watching it, probably from the very beginning... The question he/she asked is not clear mathematically, that is why both...
  13. tzushky

    Viterbi decoding for QPSK,

    viterbi viterbi phase I'm thinking of something else too: normally, you get an input waveform into the receiver, your demodulator does the job and you get phase information , since in QPSK the phase bears the bit information.... Isn't the phase euclidean distance (with the theortical phase of a...
  14. tzushky

    Laplace/Fourier of composed functions

    It seems easy..but it's not... I'd like to know if anyone has the knowledge of this....The result of a Laplace transform of two composed functions ( imagine for example a system that transforms cos(w0*t) into cos( w1*t+k1*cos(w0*t)) ... I have never heard of applying a transform to a composed...
  15. tzushky

    orthogonal frequencies

    I think that the word" interfere" shouldn't be used. There was another topic in this forum about this. Interference is always present, but that does not affect the waves but the medium of propagation. What you are trying to ask I think is why the 90 degree phase difference allows the recovery...
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