Modular Security System Files

To get started, have a look at L5_Application/main.cpp.  You can change a #define 0 to #define 1
and look at examples on how to develop your own application.


Revision History:
10-10-2013 :
    1) Fixed a bug at CAN generate sid function
    2) Enhanced I2C driver by removing a variable
    3) Enhanced cpp_task.hpp by providing CPU API
    4) Updated terminal.cpp to simplify command-line input
    5) Provided RN-XV UART driver + task
    6) Updated UartDev to include isReady() and setReady() API
    
09-28-2013 :
    1) Added (experimental) CAN driver
    2) Fixed GPIO read() method
    
09-10-2013 :
    1) Modified wireless.c and wireless.cpp to use nordic interrupt rather than polling if
       FreeRTOS is running.  This enhances performance and uses less CPU and SPI0 bus.
    2) Added eint.h to support Port0 and Port2 rising/falling edge interrupts
    
09-09-2013 : 
    1) Improvements to mesh algorithm
    2) Improved mesh packet handler (terminal command)
08-26-2013 : More testing of nordic mesh, fixed one small bug.
08-22-2013 :
    1) Previous revision date was 8-21-2013, which is fixed below.
    2) Upgrade FreeRTOS to 7.5.2
    3) Changed "info" handler at handlers.cpp to use new FreeRTOS function to list tasks' info
    4) Modified/Enhanced wireless.c to improve mesh network algorithm to repeat a packet.
       Also fixed a critical bug at mesh network.
    5) Modified lpc_sys.h and renamed RIT functions.
    6) Modified high_level_init.cpp to remove s_rit_running 
    
08-21-2013 :
    1) Changed sys_get_uptime_ms() from unsigned int to uint64_t
    2) Changed softTimer class to use uint64_t
    3) Added mesh API to form and deform a packet
    4) Changed mesh driver at wireless.c to send delayed packets to
        avoid data collission.
    
08-09-2013 :
    1) Added wireless_send() such that all wireless api is at wireless.h
    2) Added -fno-strict-aliasing to the project to remove warning from ff.c
    
08-07-2013 :
    1) Added mesh network API and nordic wireless support for the new SJ-One board
    2) Added more example tasks, and a test task.
    3) Enabled parallel build to speed up compilation for the project.
    
07-15-2013 :
    1) Added SPI0 driver and L4_IO/nordic folder
    2) Changed high_level_init() to initialize Nordic and SPI0
    3) Added bio.hpp that provides single method to initialize ALL board pins
        that are already connected
    4) Changed gpio.hpp and lpc_pwm.hpp for the new version of the board.
    5) Various other changes that remove some header files and consolidate the 
       microcontroller related api to a single file called "lpc_sys.h"
    6) Added L4_IO/nordic to encapsulate nordic wireless api
    
06-12-2013 :
    1)  Changed rtc.c to check for invalid time.
    2)  Moved rtc_initialize() from highLevelInitialize() to lowLevelInitialize()
    3)  Added mprintf() to printf_lib.h

06-05-2013 : 
    Major changes to optimize memory, and add examples.
    1)  Changed rtc_alarm.h API to be more consistent and added example in header file
    2)  Added Examples directory to L5_Application
    3)  Added malloc lock and unlock to make it safe across FreeRTOS tasks.
    4)  Removed unncessary hooks.h file
    5)  Added more documentation at tasks.hpp and added handleUserEntry() for remoteTask class.
    6)  Changed command_handler.hpp by removing output str and adding output interface.
          Changed all commands to directly output the data at tasks.cpp
    7)  Combined uart_base.hpp and uart_iface.hpp
    8)  Added lpc_pwm.hpp that supports 3 PWM channels on SJ One (v1) board.
    9)  Added tokenize() to str class (str.hpp and str.cpp)
    10) Changed uart_dev.cpp printf() to use heap vs. stack memory to do the printf
    11) Added printf_lib.h to do u0_dbg_printf().  See file for more documentation.
    12) Removed handles.h and misc.c
    13) Added spi_sem.h and spi_sem.c
    14) Changed syscalls.c to fix stdout, stdin, and stderr I/O
    15) Enhanced scheduler_task() such that tasks can communicate with each other.
    16) Added SoftTime class that relies on FreeRTOS.
    
04-25-2013
    1) Added newlib hooks for time functions
    2) Fixed infinite loop when no command was sent for 60 seconds.
    
04-20-2013
    1) Fixed gets() bug at uart_iface.hpp
    2) Modified command_handler.hpp
    
04-13-2013
    1) Added rit_isr.h to provide API to setup repetitive callback which also provides
        a free running timer for free.  RIT uses higher priority than FreeRTOS and if
        it sees that FreeRTOS is not running, it will set BASEPRI register to zero to
        ensure that accidental use of FreeRTOS API hasn't set the BASEPRI to non-zero
        therefore blocking our interrupts higher than IP_SYSCALL
    2) Fixed bug at uart_base.cpp for timeout without FreeRTOS.
    3) Changed uart_base.cpp such that last activity time is when a char was received
        such that when a char is sent, it is not considered as any activity.
    4) Fixed bug at uart_iface.cpp for gets()

03-29-2013
    Removed memory configuration options.  Now heap can use almost all of 64Kb memory
    
02-01-2013:
    Added telemetry system.
    Newlib hooks added to use C FILE API, such as fopen() and fclose()
    
10-16-2012:
    Added option to optimize SPI Flash write operation
    Changed UART0 PCLK to CPU Clock instead of CPU/4 to support higher baud rates
    
10-07-2012:
    Fixed critical FreeRTOS Priority bug by adding interruptPriorities.h
    Included RTC Semaphore for FreeRTOS
    DMA for SSP1
    Added C++ Interface inheritance for UART driver
    Added Boot information by L0/bootType.h
    Added bit manipulation by L0/bit_manip.h
    Added watchdog timer L0/watchdog.h
    Added different memory schemes by configuring it at sys_config.h
    Added more functionality to storage.h
    Enabled sleep-mode configuration for temperature sensor.
    
09-16-2012:
    str needed str.printf() fixed when string couldn't be printed due to insufficient capacity.
    FATFS needed fix to get_fattime() due to change to RTC API()