• Where can I find the spec of C251 library file format?

    wang gang
    wang gang

    Hi All,

    So, where can I get the spec of C251 library file format?
    I need to do some minor changes to a xxx.lib directly.

    Thank you in advance.

    • over 5 years ago
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  • L251: Segments allocation

    Chris B
    Chris B

    Hi,

    For illustrating my problem let say that I have 3 address spaces, separated by some gaps, which are used to allocate EDATA and NCONST segments. According to the order, EDATA are allocated firstly and then NCONST ones.
    Say that EDATA fill first…

    • over 6 years ago
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  • interfacing ds12887 with at89s52

    hari kizohr
    hari kizohr

    im interfacing ds12887 with at89s52 to on rtc. i'm having problem in coding of xbyte in keil c.could you help me for code

    • over 6 years ago
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  • assembly code to hex

    Sreeja Krishnan
    Sreeja Krishnan

    hi
    is there a disassembler in keil... actually i wan to know if i give a hex file to keil software is there any provision to convert it to assembly code?

    • over 6 years ago
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  • Feature clasified as BUG

    robert seczkowski
    robert seczkowski

    In C:
    struct XYZ table[10];
    table[index].ID = 2;

    This code produce assembly which implements library ?C?LIMUL2

    There is no option to put this code into any other segment,then CODE.
    This is supposed to be called BUG with no workaround.
    Creating own…

    • over 6 years ago
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  • Is it possible to write a program in keil for PIC micro-controller

    PAVAN KUMAR VURA
    PAVAN KUMAR VURA

    hi
    for my project i got a doubt, whether it is possible to use keil for programming PIC...
    plz help me

    • over 5 years ago
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  • read write on code memory in 8051 using C

    amey deshpande
    amey deshpande

    I am using P89v51rd2.

    I want to store only one variable in the code memory,
    so that it is stored permanently. (say a=9999; max)

    I want to update this frequently in the program, and read when
    required.

    can anyone provide me the code for the same…

    • over 7 years ago
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  • N80C251SB-16 "Step C"

    A. Tw
    A. Tw

    We still use the chip N80C251SB-16 "Step C" and my task is to check the differences between the "normal" chip an the "Step C" chip.
    I can't find any infos. Do you have any infos about this chip-revision. The last datasheet…

    • over 7 years ago
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  • probability of comment ARM and 51

    chandra Sekaran
    chandra Sekaran

    in this forum, when i come to watch everyones comments, most of the comments are regarding ARM processor, only few members are commenting about 51...

    what does it mean?

    does it mean probably every one is using ARM in the industry?

    • over 7 years ago
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  • How can I save the value of SFR?

    Jordan Micahael
    Jordan Micahael

    Hi,all! I can see the value of SFR in the register window, and I can save the value of R0~R7 to a file in HEX format by the debug commond(SAVE). But the debug commond does not apply to R8~R15. If I want to save them to a file, how can i do?

    • over 7 years ago
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  • Target devices not listed

    Jishnu Ramesh
    Jishnu Ramesh

    i have installed keil uvison 4, but I Can't find any target device listed in it. im new to uc programming . so some body help me out

    • over 7 years ago
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  • ABOUT KEIL AGSI setWatchOnMemory function

    FENG QIANG
    FENG QIANG

    hi i use AGSI interface - SetWatchOnMemory((amECODE << 24) | startAddr, (amECODE << 24) | endAddr, callback, AGSIWRITE) to trigger excuting callback function when the memory between startAddr(0xf98000) and endAddr(0xff7fff) is writen. But only the memory…

    • over 7 years ago
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  • About keyword xdata

    Mike Hwang
    Mike Hwang

    target options in dallas 390: 0x31000:0x20000(size) RAM

    #include <absacc.h>
    ...
    unsigned char xdata text[0x100] _at_ 0x2000;//text is located in 0x32000;
    ...
    XBYTE[0x2000] = 0x00;			//memory unit 0x2000,not 0x32000,is set zero;
    ...
    
    Why doesn…

    • over 17 years ago
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  • sprintf appends a null.

    Douglas  Hewett
    Douglas Hewett

    Why does sprintf() append a null?

    • over 18 years ago
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  • THE SELECTED SERIAL INTERFACE IS EITHER NOT INSTALED

    Hector Bo
    Hector Bo

    Hi all, I have the problem that I've exposed in the tittle. Once compiled when i want to start a debug session i can't do it because of the error: THE SELECTED SERIAL INTERFACE IS EITHER NOT INSTALED.

    I don't know what can I do to fix this…

    • over 6 years ago
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  • the call to delay subroutine results infinite loop

    raghav reddy
    raghav reddy

    I'm using keil uvision 4 and learning programming for AT89s52 , I'm using 12MHZ frequency.

    I had written a subroutine for a delay of 10 micro sec which is in another file called DELAY.ASM and made a call from DELAYCALL.ASM to it, but the call…

    • over 7 years ago
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  • GSM MODEM problem

    sai kumar
    sai kumar

    sir.,

    Am using a GSM modem SIM300.,
    for sending a text msg i need send ctrl+z cmnd. am using the ascii value 0x1A
    but my modem is not sending the msg.,

    * gsm modem is working for ATD command.

    can you please help in this...!

    thank you sir.,

    • over 7 years ago
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  • i want to kno which operating system can be use for KEIL software

    MEENAKSHI DEVIKAR
    MEENAKSHI DEVIKAR

    can i install KEIL software with UBUNTU ox linux based operating system.

    • over 6 years ago
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  • Keil Error - Building

    Jeffrey Peter
    Jeffrey Peter

    *** ERROR L118: REFERENCE MADE TO ERRONEOUS EXTERNAL

    #include<reg52.h>
    int i,j;
    bit state=0;
    sbit ledPin = P1^5;
    void main()
    {
            while(1)
            {
                    ledPin = 1;
                    for(i=0;i<1000;i++)
                    {
               …

    • over 8 years ago
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  • why there is so much animosity

    jessica clarke
    jessica clarke

    why is there so much animosity

    one could easily see that the so called seniors are very rude.
    this guy might be wrong with the title of his post but than this is what he probably thought. Just because you know something doesn't mean that you have to…

    • over 8 years ago
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  • Error during simulation

    vikas ty
    vikas ty

    hi,

    i have just started learning Keil simulation . I tried with simple programs and I tried the below one:

    #include<reg51.h>
    void main(void)
    { unsigned char z; for(z=0;z<100;z++) P1 = z;
    }

    while executing the simulation i am getting the…

    • over 8 years ago
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  • regarding error: non address/- constant variable in keil

    Aayushi Agrawal
    Aayushi Agrawal

     unsigned char card_num= "153845";
    

    this particular code line has the error: non address/-constant variable.
    please tell me what is it that i am not getting it right???
    please help me.....

    • over 7 years ago
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    • Keil forum
  • Rading pin values to a byte

    Ratheesh BR
    Ratheesh BR

    Hi

    I am trying to read values from ADC808 to a port using keil C. Unfortunately my circuit is designed such that pins are not connected in order. My connection is as follows
    D0-p2.4
    D1-p2.6
    D2-p2.6
    D3-p2.7
    D4-p2.3
    D5-p2.2
    D6-p2.1
    D7-p2.0

    D0-D7 are…

    • over 8 years ago
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  • TOUCH SCREEN with 8051

    eliahu c.
    eliahu c.

    Hi all

    Is it possible to use a touch screen attached to a 8051/2 based board ?

    Elico

    • over 8 years ago
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  • Global varible or Local varibles which is best wrt data memory usage?

    bhaskar reddy
    bhaskar reddy

    Hi , Which is best local or global variables wrt data memory ?I observed that XData size is getting reduced when I am replacing my global variable with local variable.is there any effect on internal data memory if I use local variable instead of global…

    • over 8 years ago
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