LCD Interfacing 16X2 with msp430f5152

Hi

I am using MSP430F5152 and trying to interface with 16X2 character LCD. I am using example code given in the below link. but it seems to be not working (nothing on the display not even cursor blinking). Don't know what i am doing wrong

http://www.circuitvalley.com/2011/12/16x2-char-lcd-with-ti-msp430-launch-pad.html

Doubts

1.      My default clock of the microcontroller is 25 mhz but the above link uses launch pad which uses 1mhz clock. but I have taken care the delay cycle adjusted and still no positive result.

2. I am using Port 3 of the microcontroller and configured properly for 4 bit mode. I have checked in the DSO the signals are coming to LCD but displaying nothing. (not even showing junks simply blank)

3. I have given 5v to LCD separately and given 3,3v to microcontroller through debugger making ground common. 

What could be wrong the clock? , the program ? or hardware connection

A little help will be appreciated.

Thank in advance.