Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by denesio

  1. D

    How to achieve this pulse timing in VHDL code

    is clock a same?
  2. D

    How to achieve this pulse timing in VHDL code

    :lol::lol::lol: i know.... you are working with version 10.1, but i am working with 13.2........ xilinx ISE made these signals itself like madd_count........ i do not know how it is working in version 10.1...... but i think you are in right way...... 1. have you made compilation? 2. have...
  3. D

    How to achieve this pulse timing in VHDL code

    is yuor rtl refer to my vhdl???????????? :) :) :) ........ my rtl refers to my vhdl, and greated from xilinx ise.......... please compile and simulate my code, and do rtl from xilinx 10.1.3..............
  4. D

    How to achieve this pulse timing in VHDL code

    Hi....... 1. yes....... 2. yes....... 3. how you had created???? which tool you made it from??? and i do not understand this RTL because LOW resolution image........ 4. here is RTL from Xilinx ISE 13.2 5. you may to compile and simulate my code, and see timings and signal...
  5. D

    How to achieve this pulse timing in VHDL code

    Hi, prakashvenugopal. pls, see vhdl code below... and testbench... 1. i do not understand what you do with DATA??? 2. and which edge of dval going with lval?? see comment in the code. excuse me on my ENGLISH...... library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL...
  6. D

    Current Source simulation in Pspice Orcad.

    yes.... ROFF=1e6, RON=1........ it is correct..... i checked it in the "proprtires of switch"..... where i see V-offset in second circuit from? :-( if i chancged RON=1e6, Orcad Pspice is in error.... if i chancged RON=1e7, V-offset is not chancged, but amplitude decreased down to 8V....
  7. D

    Current Source simulation in Pspice Orcad.

    thanks........!!!!........... but i am confused from other.... i did a simulation two circuits without second pulses (10nS).... it is not seems sames things... where i see V-offset in second circuit from???? i thought, these circuites are identical!!!!!!!!.... :-( figure of two...
  8. D

    Current Source simulation in Pspice Orcad.

    ideal switch is working... i check this. figure: aaaaaaaaaa........ THANKS!!!!!!!!.... current source is floating in switch OFF case... do i think correct?????????????
  9. D

    Current Source simulation in Pspice Orcad.

    thnx... i thought about this... but it is not working.... see figure: but i need every 40 mS pulse including about 13000 10nS pulses. see timing diagramm in my first post.... thanks.
  10. D

    Current Source simulation in Pspice Orcad.

    Hello to All. i need to simulate current source according to timing diagram. how can i do it in pspice modeling in Orcad??? how do i built this model?? need i two current sources?? thanx. timing diagram:
  11. D

    writing to XDATA with KEYPAD and displaing on LCD

    i want to write to xdata register with keypad and see the address and data on lcd..... how i can to write "scanf" function for LCD ???? for example: . . . void writereg() /* -------- write data to specified register --------- */ { uchar Add, Data; printf("\nEnter Address (hex): "); /*...
  12. D

    external interrupt using by keypad encoder 74c922

    i am using 89c51rd2.. it is working properly now... #define keypad_mask 0x0F #define keypad_address (*((unsigned char xdata*)0x8007)) . . . const char code key_table[16] = "123A456B789C*0#D"; unsigned char key; unsigned char key_lcd; . . . void ex0_isr (void) interrupt 0 { unsigned...
  13. D

    external interrupt using by keypad encoder 74c922

    here is a code: . . . . . . const char key_table[16] = "123A456B789C*0#D"; unsigned char key; //unsigned char ex0_isr_counter = 0; void ex0_isr (void) interrupt 0 { //ex0_isr_counter++; // Increment the count unsigned char keypad_scan; key = ((keypad_scan=keypad_address)&keypad_mask)...
  14. D

    How to interface the keypad encoder IC 74c922 to the 89c51?

    Re: keypad interface... "DA" must be connected to INT0 or INT1 through NOT-converter ?
  15. D

    interfacing AT89C51 microcontroller with keypad

    keypad microcontroller link? it is a solution for my problem?
See more

Part and Inventory Search

Back
Top