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Recent content by the tran

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    Protel DXP 2004 error messages

    Hello House_Cat, I found my problem, it was one of the logic gates part I missed out and didn't enable power pins. After enabled it, everything started falling into place. Great help sir. Once again thank you very much for your help. It's a relief for me now because I've been banging my head...
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    Protel DXP 2004 error messages

    adding items to hidden net vcc Hello House_Cat, Following your guidance I was be able to solve some of the error/warning messages. As you said, I enabled power pins and add VCC/GND to them the compiler error/warning messages disappear on sheet 2,3,4,5. It's very interesting that I did the same...
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    Protel DXP 2004 error messages

    protel dxp designer 2004 Hello House_Cat, Thank you very much for your prompt reply. I think you've shed me some light on this problem. Yes, you're right, in my design I have a lot of quad Op-Amp ICs, and some logic gates IC and I only enable power pins for one part of each IC. For instance...
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    Protel DXP 2004 error messages

    adding items to hidden net Salute all, I'm new to PCB design, so please bear with me. I'm currently using DXP 2004 to design my PCB, and I start out my project with Schematic capture with multiple sheets. So far, it seems to be OK, however when I try to compile the project I get these error...
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    KEIL C51. HOW TO USE INLINE ASSEMBLY?

    inline assembly in keil I think you also need to include src derective in you source code otherwise compiler will ignore assembly code.
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    Memory with microcontrollers

    Can you be more specific. I don't really understand your question.
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    manual required for 8051 microcontroller

    8052 is a very good place you can get 8051 tutorial info.
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    Chip that gives 50MHz TTL signal to a microcontroller

    Re: 50MHz TTL signal Dear friend Why don't you use Crystal or Oscillator to do the job. It's easy and takes little space on your board. Go to Mouser or Digikey websites. They have ton of them. Hope it helps. T.L
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    Help beginner in 8051 program.......

    Check this link. It 's pretty good one **broken link removed**
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    Help interfacing a keyboard !

    Microchip has an AN how to interface 4x4 keypad. Here is the link **broken link removed**
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    Anyone knows where can I find this software ?

    Go to these websites and ask people there. Perhaps they can help you out https://cellphoneforums.net/index.php?s=333e671c7410a05208674c0e4e328fb1 https://www.howardforums.com/ T.L
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    Compilers and programmers for Motorola MCUs

    Re: Motorolla MCUS ? Here are some links about Motorola MCU, especially 68h11 http://www.owlnet.rice.edu/~elec201/Book/6811_asm.html **broken link removed** http://www.mgtek.com/miniide/ http://www.hc11.demon.nl/thrsim11/68hc11/ http://ee.cleversoul.com/
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    Simple 8bit MCU with DAC

    Have you looked at this website: **broken link removed**
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    Help me fix code for divide by N counter

    Re: Divide By N counter Write the code for synchronous counter with n bit. Take the output at the each bit then you have divide by n bit. For example you have 4bit counter with clk input. then output at LSB will be Q0 = clk/2, Q1 = clk/4 and so on. Hope you understand what I say. Why you have...
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    Philips P89C51X2BN programmer circuit?

    programing circuit Go to this website, ton of info: https://www.esacademy.com/software/flashmagic/

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