Somewhat guessing what you require (examples often help) if say you have a couple of sheets named:  


  Sheet2
  Sheet3   


and those names in A1 and A2 of Sheet1, then a formula like:  

=indirect(A1&amp;"!B2")  


in Sheet1 should return the value of B2 from Sheet2 and if copied down one row, the value of B2 from Sheet3.

Using a cell text as sheet reference
I am using openOCD in eclipse for the arm STM32F10x series. After writing the whole code and  building everything without error in the program, I am going to debug it and I am getting an error after completion of 99% of the process. The following error is generated and I am not able to debug my program. 

Error in final launch sequence
Failed to execute MI command:  
-exec-run
Error message from debugger back end:
Error creating process

