v0.65 - 7 March 2011
====================

- Interrupts are now disabled while feeding the watchdog as per
  a warning in the usermanual.
- Modified projectconfig.h to select the target board and configure
  the project accordingly.  This isn't ideal, but it's a lot more
  maintainable than have a seperate code base for every board since
  they share 95% of the same code.
- Fixed a bug in adcInit().  AD6 and AD7 were not being initialised
  for the LPC1114 Reference Design Base Board.  Depending on what
  board you are using, you will need to comment or uncomment the
  appropriate pins in 'core/adc/adc.c'.
- Made a number of changes to reduce power consumption in deep sleep
  (adjusting internal pullups, making sure peripherals are in sleep
  mode or properly configured for lower power consumption, etc.).
  The LPC1114 802.15.4 wireless Boards went from ~250uA to 79uA in
  deep sleep.
- Modified WDT code to use the WDT oscillator (rather than the
  external crystal)
- Fixed a bug when waking up from sleep in Chibi.  Removed systick
  delay when toggling reset and slptr pins since this was causing
  a blocking condition with the wakeup ISR.
- Added a CFG_VREG section to projectconfig.h to make it easier to
  work with dual output voltage regulators like the TPS780
- Fixed a bug calculating the battery voltage in cmd_sysinfo.h
- Updated SCB_DEVICEID list in lpc111x.h to include new parts from UM10398
  Rev. 3 (14 January 2011).
- Added wsbridge example to 'tools/examples/chibi/sniffer-wsbridge'
- Modified chb_libpcap.c to always create a new file when logging 802.15.4
  frames to the SD card.  If a file of the same name exists, it will now be
  overwritten.
- Updated pmu to switch to 2.2V in sleep mode if a TPS780 is used for the
  voltage regulator, and swtich to 3.3V on startup (only relevant for
  wireless boards).

v0.60 - 31 Jan 2011
===================

- Added a number of examples to the 'tools/examples' folder.
- Modified Crossworks project to build with stdio/printf in 'core/lib' (saves
  about 1.5-2K in release mode)
- Added rollover counter to the systick timer
- Updated schematic for wireless board in tools/schematics (v1.6 which is the
  final production version).  This schematic shows the expected layout for
  peripherals like the SD card and battery voltage divider.
- Reduced command names in cmd_tbl.h to save some flash space, and reduced
  text in various commands (saves ~0.3kb)
- Added the battery/supply voltage to the 'sysinfo' command (only applies to
  LPC1114 wireless board)
- Made a number of changes for deep-sleep mode to reduce power consumption 
  (pmu.c updated, including a bug fix that prevented the code from exiting
  deep sleep twice from SW).
- Added basic driver for SSD1306-based 128x64 OLED displays (courtesy Adafruit
  Industries who have a convenient breakout board for these displays).
- Added 'chb_libpcap' to log raw 802.15.4 frames to libpcap binary files.
  This allows wireless traffic to be stored for debugging and analysis in
  Wireshark or other libpcap compatible protocol analysers.  Based on wsbridge
  by Freaklabs.
- Added a 'tools' folder with schematics and common open-source tools that can
  be used with the code base
- Modified 'core/gpio/gpio.c' to reduce the compiled code size. Repetitive
  switches where only the registers change were modified to use temporary
  registers and execute the code only once.
- Updated Chibi to v0.91 (adds sleep method and promiscuous mode to allow
  Chibi to act as an 802.15.4 packet sniffer, etc.).  To enable promiscuous
  mode, set CFG_CHIBI_PROMISCUOUS to 1 and change the buffer size to 1024 to
  handle a larger amount of incoming traffic.  The following code will send
  all incoming bytes to UART for processing on the PC using WSBridge 
  (available in the '/tools' folder or from www.freaklabs.org):

    #include "drivers/chibi/chb.h"
    #include "drivers/chibi/chb_drvr.h"
    static chb_rx_data_t rx_data;

    ...

    chb_pcb_t *pcb = chb_get_pcb();
    while(1)
    {
      // Check for incoming messages 
      while (pcb->data_rcv) 
      { 
        // get the length of the data
        rx_data.len = chb_read(&rx_data);
        // make sure the length is nonzero
        if (rx_data.len)
        {
          // Enable LED to indicate message reception 
          gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_ON); 

          // Send raw data to UART for processing on
          // the PC (requires WSBridge - www.freaklabs.org)
          uint8_t i;
          for (i=0; i<rx_data.len; i++)
          {
            // Send output to UART
            uartSendByte(rx_data.data[i]);
          }

          // Disable LED
          gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF); 
        }
      }
    }

v0.50 - 8 December 2010
=======================

- Modified Chibi to use 16-bit timer 0 for us delays (more accurate)
- Added a flag to projectconfig.h to make FATFS read-only (to
  save a couple KB when space is tight).
- Moved 'project/eeprom.*' to 'drivers/eeprom' to add a level
  of abstraction to eeprom access throughout the code
- Added a table to projectconfig.h to try to keep track of pin and peripheral usage by drivers
  and the included SW examples.
- Added a simple pwm driver using 16-bit timer 1 and p1.9 (MAT0).  The code can be found
  in "/core/pwm".
- Added a bi-polar stepper motor driver based on the Arduino library.  Basic position data was added
  to detect deviation from the 'Home' position and to retrieve the spindle's current rotation.  See
  "drivers/motor/stepper" for more information.
- Added simple RSA encryption/decryption driver.  Currently limited to
  using 64-bit and 32-bit numbers in key pairs, which isn't terribly secure,
  but allows much smaller code size than if huge number support was included.
- Added a driver for the MCP4725 I2C DAC (see "drivers/dac/mcp4725").
- Updated Chibi to v0.90
- Modified FCLK_FAST() in 'drivers/fatfs/mmc.c' to set fast SPI speed
  to 9MHz instead of the previous 2MHz.

v0.30 - 7 October 2010
======================

- Moved command.c and cmd_tbl.h to /project to try to keep all project-specific files in one location
- Created seperate .c files for every command for the command-line interface to make it easier
  to maintain and share code between projects.  All commands listed in cmd_tbl.h are now stored
  in their own files in /project/commands (ex.: "/project/commands/cmd_hello.c", etc.)
- Add a CLI command to show the contents of any directory from the SD card 
  (/project/commmands/cmd_sd_dir.c)
- Added a CLI command showing how to enter deep-sleep and exit with a SW wakeup
  (/project/commands/cmd_deepsleep.c)
- Fixed pmu.c to set the core clock back to an appropriate state after wakeup

v0.21 - 21 September 2010
=========================

- Added ChaN's FATFS and a basic MMC/SDHC driver
- Added "drivers/lcd" and a prelimenary (experimental) driver for 128x64
  pixel ST7565-based bitmap LCDs (ex: http://www.adafruit.com/index.php?main_page=product_info&cPath=37&products_id=250)