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Recent content by nbuzs

  1. N

    How to express this equation using "assign" in verilog

    thanks for kornukhin reply. I'm try to writing in this way ___________________________________________________________________________ wire [3:0] incd3; wire [3:0] exp3; assign incd3 = D + 1; assign exp3 = {incd3[3], ~incd3[3] & incd3[2], ~incd3[3] & ~incd3[2] & incd3[1], 1'b0}; assign Z =...
  2. N

    How to express this equation using "assign" in verilog

    Any suggestion on the expression using verilog will be thankful. Input Data is D[3:0], encoded output Z[6:0] Z = (D mod 15) + (8-1)*(2n-1) listed in below table D[3:0] n Z[6:0] --------------------- 0 0 0 1 1 8 2 1 9 3 2 24...
  3. N

    An Application of The DFF

    I saw a interest application of D Flipflop. Its D terminal connect to logic high, CLK terminal connect to an unknow frequency and dutycycel signal, while its RST terminal connect to an 200Hz frequency with dutycycle 40%, so What will the Q output? and the usage of such structure? Thanks for...
  4. N

    How to simulate a EDIF schematic netlist?

    Thanks! You suggestion should be a way. While I wonder if there is a way to simulate a EDIF netlist directly?
  5. N

    How to simulate a EDIF schematic netlist?

    I don't know if there is a tool could I use to simulate a EDIF file? so how to add stimules? where to see waveforms?
  6. N

    The Internal RAM of 51 MCU

    so are the RAM and SFR physically independ while using the same address. Only distinguished by addressing method?
  7. N

    The Internal RAM of 51 MCU

    I wonder exactly how many sram cells there are in a 51 MCU core. The data sheet says overlapped 128 upper ram with address 80H~FFH accessed by INDIRECT addressing, while these address space accessed by DIRECT addressing should be SFRs. So I really puzzled about the Internal RAM and SFRs are...
  8. N

    What's kind of memory type of 80C51's data memory?

    But if it is SRAM, how could it make several KBs with 6T cell? Or is there any new SRAM cells? Thanks!
  9. N

    What's kind of memory type of 80C51's data memory?

    80c51 I'm puzzled by the type of 51's data memory, I'm not sure if it is DRAM or SRAM. If anyone knows some thing about it. pls let me know. Thanks & Regars!
  10. N

    icfb hangs when I type exit in CIW

    kill icfb I have handled the problem. that is caused by Firewall and SELinux. I only closed them seems working smoothly.
  11. N

    icfb hangs when I type exit in CIW

    kill icfb process linux I'm using a dell powedge 2950 with two network card bonding to a virtuolization card, it works in mode 6.
  12. N

    icfb hangs when I type exit in CIW

    I have installed IC5141 on Redhat Linux AS4U6. and seems working smoothly. But after I installed the NCSU CDK 1.5.1, I can't exit icfb when typed in "exit" in CIW, and it just hangs. the mouse becoming a waiting style. I can close the icfb window only by "kill". Any suggestions will be...
  13. N

    how to amplify voltage in range mV to V

    @_@
  14. N

    amplify 2MHz sin wave from 1.45-1.8V to 0-3.3V

    Thank you, arsenal. I'm gonna to try
  15. N

    amplify 2MHz sin wave from 1.45-1.8V to 0-3.3V

    yes, I neglect it.
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