DEAR ALL, I am using keil compilar with ATMEL controller(AT85C51,c51 core).I am new to this compiler.when ever i tried to download the code it showing an error like target not created,FATAL errors .Can u please guide me in fixing this errors,and also how to know whether the debugger is working or not(we are using ATOCD51 debugger).
Why did you make your whole post bold?!
"when ever i tried to download the code it showing an error like target not created"
If it says "target not created" that means there is nothing to download!
It means that your project failed to build - hence there is nothing to download!
"I am new to this compiler"
It sounds like you are new to any sort of software development, yes?
There are several steps before you get an executable file to be downloaded:
First, your source file(s) need to be Compiled (or assembled) by the Compiler (or linker);
Then, the resulting object files need to be Linked by the Linker.
Only if all these steps succeed will you have something to download!
See: http://www.keil.com/product/devproc.asp?t=c51&h=1
"Can u please guide me in fixing this errors"
How do you suppose that anyone can help you to fix the errors if you don't state what the errors actually are?!
In the IDE, you can click on a message, press F1, and a description of the error will be shown.
You can also look up the error messages in the Manual.
Have you worked through the sample projects in the Manual? http://www.keil.com/support/man/docs/uv3/uv3_examples.htm