Datasheet

NXP Semiconductors

AN11211

Blueboard Quick Startup Guide

Fig 37. Select the level of optimization

7.4.1 Optimization issues

When optimization is enabled, it will reorder code. What this means is that the code from

multiple C lines will be intermingled. In addition, assignments and initializations might be

pulled out of loops so they are only executed once. Changes like these will make the

code confusing to debug. Some symptoms one might see are breakpoints that only work

the first time through, or seeing the debugger’s current line indicator fail to advance or

even move backwards when clicking step. It is best to always use –O0 for debugging.

7.5 Optimizing the code size of the NFC Reader Library

A detailed description on how to optimize the code size of the NFC Reader Library for the

use with one specially defined reader IC and card type please refer to the attached

documents on the product page of the CLEV663B [8]

. On that page one can also find an

exemplary project for the use of the MIFARE Classic card in conjunction with the

CLRC663 reader IC.

7.6 Preparing the projects for the use of the Blueboard in I²C

configuration

To use the projects in I²C configuration one has to do some small adaptations in the file

phhwConfig.h located in the MCU project LPC1xxx.

1. Open the file phhwConfig.h and

Application note

COMPANY PUBLIC

Rev. 1.9 — 1 December 2014

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