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when i press "rebuild all target" button in uvision3 then i get a error as follow ---ERROR: can't execute 'C:\Keil\C51\BIN\C51.EXE' Target not created pls help me.
Has it worked previously on the PC in question?
Does C:\Keil\C51\BIN\C51.EXE exist on the PC in question? If so, can you run it from the command line?
no it does not exist on the pc. pls help me to compile.
Did you complete the installation of the software?
Did you actually attempt to install the software in the first place?
Try re-installing.
yes sir i installed the software.what do u mean by first place pls inform me.
What directory did you install the software to?
During the installion of the software, were any errors reported?
So you should not be surprised that it can't be executed, should you?!
C51.EXE is the executable file of the actual Compiler itself - if it doesn't exist on your PC, then you don't have a valid installation of the 8051 tools!
Note that the Compiler (C51.exe) is distinct from uVision - which is simply a graphical "front-end" user interface.
See the diagram & explanation here: http://www.keil.com/c51/devproc.asp
"In the first place" is an English idiom meaning "originally" or "initially" etc
"i installed the software"
What software, exactly, did you install?
Did the installation complete successfully without errors or warnings?
Perhaps you installed some other toolset (eg, ARM, C166), but not C51?
sir i installed uvision3 software.during installation there was no error.i want to compile a program written in c to get a hex code.pls help me.
What, exactly, do you mean by that?
uVision-3 is not supplied as a separate installation - it is only provided as part of a toolchain; ie, ARM, XC16x/C16x/ST10, C251, or C51
See: http://www.keil.com/product/
See also: http://www.keil.com/c51/devproc.asp
IF you just installed uVision without the rest of the C51 toolchain - then that is obviously your problem!
Note that uVision-3 is now discontinued anyhow - so whatever you have is well out-of-date.
If you have a full licence, you should speak to your supplier about this.
If you don't have a full licence, you should download the latest Evaluation version, and install that.
sir how to get c51 toolchain.if i install new version of uvision then does new version of uvision contain c51 toolchain?
www.keil.com/.../c51.htm
I think this might be a more appropriate link for the OP:
www.geekgirls.com/absolute_beginners_01.htm