I2C reading and writing is not happening in lpcXpresso 7.2 version

[lpcware]

Content originally posted in LPCWare by arunprakash.p on Tue Oct 28 03:47:07 MST 2014
While reading and writing to NVSRAM using I2C nothing is happening using new version of LPCXpresso(v7.2.0_153).The same code is working properly in old version of LPCXpresso(v3.0).I couldn't able to understand the problem.Anyone please help me to solve this problem.

[lpcware]

Content originally posted in LPCWare by lpcxpresso-support on Tue Oct 28 04:21:06 MST 2014
Note that the latest version of LPCXpresso is v7.4.0

I suggest that you read this FAQ about migrating between versions of LPCXpresso
http://www.lpcware.com/content/faq/lpcxpresso/migrating-existing-projects

You should also read this FAQ:
http://www.lpcware.com/content/faq/lpcxpresso/compiler-optimization
Especially the section on "Optimized code fails to execute correctly"