. Adds support for external interrupt via pins on GPIO1
. LPC1114.h modified to include the additional registers required to enable interrupt handling
. startup.c modified to include a GPIO interrupt handler
. test_GPIO.c is used to test the feature
. Implements 38Khz IR receiver on pin GPIO1_5
. Makes use of GPIO interrupt to sense IR signlas on GPIO pin
. Makefile updated to add support for IR.c
. PLL intialization moved to startup.c
. Removed SYSPLL.h SYSPLL.c and test_SYSPLL.c
. UART baud rate re-configured based on 48Mhz system clock
. Adds 38Khz IR signal detection and decoding in IR.c
. Makefile updated to support IR.c
. IR support builds on GPIO interrupt handling
. SysTick based 250uSec timer used to measure IR pulse widths
Merge branch 'IR'