how the config register work

gidon levy said:

what does it mean " | =" 

This is what you shall already know before you come to this forum asking. You shall not try to learn C programming here. Reading books and doing (compiling) exercises is much better way.

I agree that this is not the place to "learn how to program". This forum is for solving issues with MSP430 devices.

However, I will throw you a bone and tell you that line is equivalent to:

CBCTL0 = CBCTL0 (bitwise or'ed with) CBIPEN

|= is "equals-or"

Now go read a C-Programming book.

You need to learn what is called bitwise operation.

ex     A  |= 0X02;         // Changes 2nd bit without others. Form 0000 0000 to 0000 0010 Binary

or     A &= ~ 0X02      // Reset 2nd bit of A. ie From  0010 0111  to  0010 0100 Binary

Learn from best book for C made for uC. " The C book "

Get online  version http://publications.gbdirect.co.uk/c_book

You need to learn bitwise operation

2.8.2.3. The bitwise operators here:- http://publications.gbdirect.co.uk/c_book/chapter2/expressions_and_arithmetic.html

thank you.

you help me.

one more question how I can set the code composser program

to let me  know if I want to save the change before closing it.

CCS is used to make program for itself but still like any other it must notify if you close it without saving. if not check settings.

Actually it is better to use for beginner to use IAR it is light and i am using it .

---------

Vikas Dabas