First step at porting to MoteinoMEGA. LED shows assert failure at boot. Appears to be short double blink, short off (~1sec), followed by 250ms toggle cycles. Most of it derived from amber board.

arch/avr/src/atmega/Kconfig

@@ -15,6 +15,11 @@ config ARCH_CHIP_ATMEGA128
 	---help---
 		Atmel ATMega128 8-bit AVR.
 
+config ARCH_CHIP_ATMEGA1284P
+	bool "ATMega1284P"
+	---help---
+		Atmel ATMega1284P 8-bit AVR.
+
 endchoice # ATMega Configuration Options
 
 menu "ATMega Peripheral Selections"

arch/avr/src/atmega/atmega_lowconsole.c

@@ -218,8 +218,13 @@ void usart0_reset(void)
 
   /* Unconfigure pins (no action needed */
 
+#ifdef CONFIG_ARCH_CHIP_ATMEGA1284P
+  DDRD  &= ~(1 << 1);
+  PORTD &= ~(1 << 0);
+#else
   DDRE  &= ~(1 << 1);
   PORTE &= ~(1 << 0);
+#endif
 
   /* Unconfigure BAUD divisor */
 
@@ -309,6 +314,22 @@ void usart0_configure(void)
   UCSR0B = ucsr0b;
   UCSR0C = ucsr0c;
 
+#ifdef CONFIG_ARCH_CHIP_ATMEGA1284P
+  /* Pin Configuration: None necessary, Port D bits 0&1 are automatically
+   * configured:
+   *
+   * Port D, Bit 0: RXD0, USART0 Receive Pin. Receive Data (Data input pin
+   *   for the USART0). When the USART0 receiver is enabled this pin is
+   *   configured as an input regardless of the value of DDRD0. When the
+   *   USART0 forces this pin to be an input, a logical one in PORTD0 will
+   *   turn on the internal pull-up.
+   *
+   * Port D, Bit 1: TXD0, UART0 Transmit pin.
+   */
+
+  DDRD  |= (1 << 1);   /* Force Port D pin 1 to be an output -- should not be necessary */
+  PORTD |= (1 << 0);   /* Set pull-up on Port D pin 0 */
+#else
   /* Pin Configuration: None necessary, Port E bits 0&1 are automatically
    * configured:
    *
@@ -324,8 +345,9 @@ void usart0_configure(void)
    * However, this is not explicitly stated in the text.
    */
 
-  DDRE  |= (1 << 1);   /* Force Port E pin 1 to be an input -- might not be necessary */
+  DDRE  |= (1 << 1);   /* Force Port E pin 1 to be an output -- might not be necessary */
   PORTE |= (1 << 0);   /* Set pull-up on Port E pin 0 */
+#endif
 
   /* Set the baud rate divisor */
 

arch/avr/src/atmega/atmega_lowinit.c

@@ -128,7 +128,12 @@ void up_lowinit(void)
 
   /* Set the system clock divider to 1 */
 
+#ifdef CONFIG_ARCH_CHIP_ATMEGA1284P
+  CLKPR = 0x80;
+  CLKPR = 0;
+#else
   XDIV = 0;
+#endif
 
   /* Initialize the watchdog timer */
 

arch/avr/src/atmega/atmega_timerisr.c

@@ -177,5 +177,9 @@ void up_timer_initialize(void)
 
   /* Enable the interrupt on compare match A */
 
+#ifdef CONFIG_ARCH_CHIP_ATMEGA1284P
+  TIMSK1 |= (1 << OCIE1A);
+#else
   TIMSK |= (1 << OCIE1A);
+#endif
 }

arch/avr/src/avr/Toolchain.defs

@@ -70,6 +70,8 @@ endif
 
 ifeq ($(CONFIG_ARCH_CHIP_ATMEGA128),y)
   ARCHCPUFLAGS += -mmcu=atmega128
+else ifeq ($(CONFIG_ARCH_CHIP_ATMEGA1284P),y)
+  ARCHCPUFLAGS += -mmcu=atmega1284p
 else ifeq ($(CONFIG_ARCH_CHIP_AT90USB646),y)
   ARCHCPUFLAGS += -mmcu=at90usb646
 else ifeq ($(CONFIG_ARCH_CHIP_AT90USB647),y)

configs/Kconfig

@@ -318,6 +318,15 @@ config ARCH_BOARD_MICROPENDOUS3
 		be populated with either an AVR AT90USB646, 647, 1286, or 1287 MCU.
 		Support is configured for the AT90USB647.
 
+config ARCH_BOARD_MOTEINO_MEGA
+	bool "LowPowerLab MoteinoMEGA"
+	depends on ARCH_CHIP_ATMEGA1284P
+	select ARCH_HAVE_LEDS
+	---help---
+		This is placeholder for the LowPowerLab MoteinoMEGA that is based
+		on the Atmel AVR ATMega1284P MCU.  There is not much there yet and what is
+		there is untested due to tool-related issues.
+
 config ARCH_BOARD_MX1ADS
 	bool "Motorola MX1ADS development board"
 	depends on ARCH_CHIP_IMX1
@@ -1065,6 +1074,7 @@ config ARCH_BOARD
 	default "mcu123-lpc214x"           if ARCH_BOARD_MCU123_LPC214X
 	default "micropendous3"            if ARCH_BOARD_MICROPENDOUS3
 	default "mirtoo"                   if ARCH_BOARD_MIRTOO
+	default "moteino-mega"             if ARCH_BOARD_MOTEINO_MEGA
 	default "mx1ads"                   if ARCH_BOARD_MX1ADS
 	default "ne64badge"                if ARCH_BOARD_NE64BADGE
 	default "ntosd-dm320"              if ARCH_BOARD_NTOSD_DM320
@@ -1288,6 +1298,9 @@ endif
 if ARCH_BOARD_MIRTOO
 source "configs/mirtoo/Kconfig"
 endif
+if ARCH_BOARD_MOTEINO_MEGA
+source "configs/moteino-mega/Kconfig"
+endif
 if ARCH_BOARD_MX1ADS
 source "configs/mx1ads/Kconfig"
 endif

configs/moteino-mega/Kconfig

@@ -0,0 +1,4 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#

configs/moteino-mega/README.txt

@@ -0,0 +1,491 @@
+README
+^^^^^^
+
+**********************************************************************
+**** PRELIMINARY - Port in progress                               ****
+**********************************************************************
+
+This is the README file for the port of NuttX to the MoteinoMEGA from
+LowPowerLab (http://www.lowpowerlab.com).  The MoteinoMEGA is based
+on an Atmel ATMega1284P.  As of this writing, documentation for the
+MoteinoMEGA board is available here:
+
+https://lowpowerlab.com/shop/index.php?_route_=Moteino/moteinomega
+
+Contents
+^^^^^^^^
+
+  o MoteinoMEGA Features
+  o Pin Connections
+  o DualOptiboot Bootloader
+  o Toolchains
+  o Windows Native Toolchains
+  o NuttX buildroot Toolchain
+  o avr-libc
+  o MoteinoMEGA Configuration Options
+  o Configurations
+
+MoteinoMEGA Features
+^^^^^^^^^^^^^^^^^^^^
+
+   o  16MHz ATmega1284P Atmel 8bit AVR RISC Processor
+   o  128Kbyte Flash
+   o  16Kbyte RAM
+   o  4Kbyte EEPROM
+   o  2 High Speed Serial Ports
+   o  8Ch 10bit Analog Input port
+
+Pin Connections (PCB Rev ?)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  -------------------- -----------------------------
+  ATMega1284P Pinout   MoteinoMEGA board connection
+  -------------------- -----------------------------
+**********************************************************************
+**** INVALID - Port in progress                                   ****
+**********************************************************************
+  (left)
+   1 PEN               Pulled-up
+   2 PE0 (RXD0/PDI)    MAX202ECWED T1IN or J7-1, ISP-PDI (via 74HC5053), J5-26
+   3 PE1 (TXD0/PDO)    MAX202ECWED A1OUT or J7-9, ISP-PDO (via 74HC5053), J5-25
+   4 PE2 (XCK0/AIN0)   MAX202ECWED T2IN, J5-24
+   5 PE3 (OC3A/AIN1)   MAX202ECWED A2OUT, J5-23
+   6 PE4 (OC3B/INT4)   J5-22
+   7 PE5 (OC3C/INT5)   J5-21, RTL8019AS INT 0, TP5 PE5
+   8 PE6 (T3/INT6)     J5-20
+   9 PE7 (ICP3/INT7)   J5-19
+  10 PB0 (SS)          Pull up of SS SPI master
+  11 PB1 (SCK)         J7-7, ISP_SCK (via 74HC4053) and AT45D011 SCK, J5-17
+  12 PB2 (MOSI)        AT45D011 SI. J5-16
+  13 PB3 (MISO)        AT45D011 SO, J5-15
+  14 PB4 (OC0)         AT45D011 CS\, J5-14
+  15 PB5 (OC1A)        J5-13
+  16 PB6 (OC1B)        J5-12
+  (bottom)
+  17 PB7 (OC2/OC1C)    J5-11
+  18 PG3/TOSC2         32.768KHz XTAL
+  19 PG4/TOSC1         32.768KHz XTAL
+  20 RESET             RESET
+  21 VCC
+  22 GND               GND
+  23 XTAL2             14.7456MHz XTAL
+  24 XTAL1             14.7456MHz XTAL
+  25 PD0 (SCL/INT0)    J5-10
+  26 PD1 (SDA/INT1)    J5-9
+  27 PD2 (RXD1/INT2)   J5-8, MAX488CSA RO (RS-485)
+  28 PD3 (TXD1/INT3)   J5-7, MAX488CSA DI (RS-485)
+  29 PD4 (ICP1)        J5-6
+  30 PD5 (XCK1)        J5-5
+  31 PD6 (T1)          J5-4
+  32 PD7 (T2)          J5-3
+  (left)
+  48 PA3 (AD3)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  47 PA4 (AD4)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  46 PA5 (AD5)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  45 PA6 (AD6)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  44 PA7 (AD7)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  43 PG2 (ALE)         J5-1, 74HC5730, 62246DLP-7, RTL8019AS
+  42 PC7 (A15)         TP4 A15, J5-27, 74HC5730
+  41 PC6 (A14)         J5-28, 74HC5730, 62246DLP-7, RTL8019AS
+  40 PC5 (A13)         J5-29, 74HC5730, 62246DLP-7, RTL8019AS
+  39 PC4 (A12)         J5-30, 74HC5730, 62246DLP-7, RTL8019AS
+  38 PC3 (A11)         J5-31, 74HC5730, 62246DLP-7, RTL8019AS
+  37 PC2 (A10)         J5-32, 74HC5730, 62246DLP-7, RTL8019AS
+  36 PC1 (A9)          J5-33, 74HC5730, 62246DLP-7, RTL8019AS
+  35 PC0 (A8)          J5-34, 74HC5730, 62246DLP-7, RTL8019AS
+  34 PG1 (RD)          TP2 RD\, J5-52, 62246DLP-7, RTL8019AS
+  33 PG0 (WR)          TP3 WR\, J5-51, 62246DLP-7, RTL8019AS
+  (top)
+  64 AVCC
+  63 GND               GND
+  62 AREF              (analog supply)
+  61 PF0 (ADC0)        J6-5, PDV-P9 Light Sensor
+  60 PF1 (ADC1)        J6-7, Thermister
+  59 PF2 (ADC2)        J6-9, MXA2500GL Dual Axis Accesserometer, AOUTX
+  58 PF3 (ADC3)        J6-11, MXA2500GL Dual Axis Accesserometer, AOUTY
+  57 PF4 (ADC4/TCK)    J6-13, MXA2500GL Dual Axis Accesserometer, TOUT
+  56 PF5 (ADC5/TMS)    J6-15
+  55 PF6 (ADC6/TDO)    J6-17
+  54 PF7 (ADC7/TDI)    J6-19
+  53 GND               GND
+  52 VCC
+  51 PA0 (AD0)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  50 PA1 (AD1)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+  49 PA2 (AD2)         J5-?, 74HC5730, 62246DLP-7, RTL8019AS
+
+DualOptiboot Bootloader
+^^^^^^^^^^^^^^^^^^^^^^^
+
+o FTDI (or similar) USB-To-Serial converter with compatible connector
+  configured for DTR (AdaFruit, SparkFun, etc)
+o Obtain ard-reset-arduino Python script
+  (one source: https://github.com/mikaelpatel/Cosa/blob/master/build/Arduino-Makefile/bin/ard-reset-arduino)
+  This script triggers the DTR pin to enter bootloader mode.
+o Obtain avrdude for your platform.
+
+Bootloader operates at 115200 baud.  It would be useful to create a short script
+that invokes ard-reset-arduino and then avrdude to load program.  This script
+could then also, optionally, invoke miniterm.py or some other serial interface
+program for console.
+
+Example:
+
+APP=nuttx
+CPU=atmega1284p
+BAUD=115200
+PORT=/dev/tty.usbserial-A703X8PQ
+avr-size --mcu=$CPU -C --format=avr $APP
+ard-reset-arduino --verbose $PORT
+avrdude -q -V -p $CPU -C {location-of-avrdude.conf} -D -c arduino -b $BAUD \
+  -P $PORT -U flash:w:${APP}.hex:i
+miniterm.py --port=$PORT --baud=$BAUD -q --lf
+
+Toolchains
+^^^^^^^^^^
+
+The toolchain may be selected using the kconfig-mconf tool (via 'make menuconfig'),
+by editing the existing configuration file (defconfig), or by overriding
+the toolchain on the make commandline with CONFIG_AVR_TOOLCHAIN=<toolchain>.
+
+The valid values for <toolchain> are BUILDROOT, CROSSPACK, LINUXGCC and WINAVR.
+
+Buildroot:
+
+  There is a DIY buildroot version for the AVR boards here:
+  http://sourceforge.net/projects/nuttx/files/buildroot/.  See the
+  following section for details on building this toolchain.
+
+  It is assumed in some places that buildroot toolchain is available
+  at ../misc/buildroot/build_avr.  Edit the setenv.sh file if
+  this is not the case.
+
+  After configuring NuttX, make sure that CONFIG_AVR_BUILDROOT=y is set in your
+  .config file.
+
+WinAVR:
+
+  For Cygwin development environment on Windows machines, you can use
+  WinAVR: http://sourceforge.net/projects/winavr/files/
+
+  It is assumed in some places that WinAVR is installed at C:/WinAVR.  Edit the
+  setenv.sh file if this is not the case.
+
+  After configuring NuttX, make sure that CONFIG_AVR_WINAVR=y is set in your
+  .config file.
+
+  WARNING:  There is an incompatible version of cygwin.dll in the WinAVR/bin
+  directory!  Make sure that the path to the correct cygwin.dll file precedes
+  the path to the WinAVR binaries!
+
+Linux:
+
+  For Linux, there are widely available avr-gcc packages.  On Ubuntu, use:
+  sudo apt-get install gcc-avr gdb-avr avr-libc
+
+  After configuring NuttX, make sure that CONFIG_AVR_LINUXGCC=y is set in your
+  .config file.
+
+Mac OS X:
+
+  For Mac OS X, the CrossPack for AVR toolchain is available from:
+
+    http://www.obdev.at/products/crosspack/index.html
+
+  This toolchain is functionally equivalent to the Linux GCC toolchain.
+
+Windows Native Toolchains
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  The WinAVR toolchain is a Windows native toolchain. There are several
+  limitations to using a Windows native toolchain in a Cygwin environment.
+  The three biggest are:
+
+  1. The Windows toolchain cannot follow Cygwin paths.  Path conversions are
+     performed automatically in the Cygwin makefiles using the 'cygpath'
+     utility but you might easily find some new path problems.  If so, check
+     out 'cygpath -w'
+
+  2. Windows toolchains cannot follow Cygwin symbolic links.  Many symbolic
+     links are used in Nuttx (e.g., include/arch).  The make system works
+     around these  problems for the Windows tools by copying directories
+     instead of linking them.  But this can also cause some confusion for
+     you:  For example, you may edit a file in a "linked" directory and find
+     that your changes had no effect. That is because you are building the
+     copy of the file in the "fake" symbolic directory.  If you use a
+     Windows toolchain, you should get in the habit of making like this:
+
+       make clean_context all
+
+     An alias in your .bashrc file might make that less painful.
+
+  3. Dependencies are not made when using Windows versions of the GCC.  This
+     is because the dependencies are generated using Windows pathes which do
+     not work with the Cygwin make.
+
+       MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+
+  An additional issue with the WinAVR toolchain, in particular, is that it
+  contains an incompatible version of the Cygwin DLL in its bin/ directory.
+  You must take care that the correct Cygwin DLL is used.
+
+NuttX buildroot Toolchain
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  If NuttX buildroot toolchain source tarball cne can be downloaded from the
+  NuttX SourceForge download site (https://sourceforge.net/projects/nuttx/files/).
+  This GNU toolchain builds and executes in the Linux or Cygwin environment.
+
+  1. You must have already configured Nuttx in <some-dir>/nuttx.
+
+     cd tools
+     ./configure.sh amber/<sub-dir>
+
+     NOTE: you also must copy avr-libc header files into the NuttX include
+     directory with command perhaps like:
+
+     cp -a /cygdrive/c/WinAVR/include/avr include/.
+
+  2. Download the latest buildroot package into <some-dir>
+
+  3. unpack the buildroot tarball.  The resulting directory may
+     have versioning information on it like buildroot-x.y.z.  If so,
+     rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
+
+  4. cd <some-dir>/buildroot
+
+  5. cp configs/avr-defconfig-4.5.2 .config
+
+  6. make oldconfig
+
+  7. make
+
+  8. Edit setenv.h, if necessary, so that the PATH variable includes
+     the path to the newly built binaries.
+
+  See the file configs/README.txt in the buildroot source tree.  That has more
+  detailed PLUS some special instructions that you will need to follow if you
+  are building a toolchain for Cygwin under Windows.
+
+avr-libc
+^^^^^^^^
+
+Header Files
+
+  In any case, header files from avr-libc are required:  http://www.nongnu.org/avr-libc/.
+  A snapshot of avr-lib is included in the WinAVR installation. For Linux
+  development platforms, avr-libc package is readily available (and would
+  be installed in the apt-get command shown above).  But if you are using
+  the NuttX buildroot configuration on Cygwin, then you will have to build
+  get avr-libc from binaries.
+
+Header File Installation
+
+  The NuttX build will required that the AVR header files be available via
+  the NuttX include directory.  This can be accomplished by either copying
+  the avr-libc header files into the NuttX include directory:
+
+  cp -a <avr-libc-path>/include/avr <nuttx-path>/include/.
+
+  Or simply using a symbolic link:
+
+  ln -s <avr-libc-path>/include/avr <nuttx-path>/include/.
+
+Build Notes:
+
+  It may not necessary to have a built version of avr-lib; only header files
+  are required.  Bu if you choose to use the optimized libraru functions of
+  the flowing point library, then you may have to build avr-lib from sources.
+  Below are instructions for building avr-lib from fresh sources:
+
+  1. Download the avr-libc package from:
+
+     http://savannah.nongnu.org/projects/avr-libc/
+
+     I am using avr-lib-1.7.1.tar.bz2
+
+  2. Upack the tarball and cd into the
+
+     tar jxf avr-lib-1.7.1.tar.bz2
+     cd avr-lib-1.7.1
+
+  3. Configure avr-lib.  Assuming that WinAVR is installed at the following
+     loction:
+
+     export PATH=/cygdrive/c/WinAVR/bin:$PATH
+     ./configure --build=`./config.guess` --host=avr
+
+     This takes a *long* time.
+
+  4. Make avr-lib.
+
+     make
+
+     This also takes a long time because it generates variants for nearly
+     all AVR chips.
+
+  5. Install avr-lib.
+
+     make install
+
+MoteinoMEGA Configuration Options
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+    CONFIG_ARCH - Identifies the arch/ subdirectory.  This should
+       be set to:
+
+       CONFIG_ARCH=avr
+
+    CONFIG_ARCH_FAMILY - For use in C code:
+
+       CONFIG_ARCH_FAMILY=avr
+
+    CONFIG_ARCH_FAMILY_family - For use in C code:
+
+       CONFIG_ARCH_FAMILY_AVR=y
+
+    CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+
+       CONFIG_ARCH_CHIP=atmega
+
+    CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
+       chip:
+
+       CONFIG_ARCH_CHIP_ATMEGA1284P=y
+
+    CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
+       hence, the board that supports the particular chip or SoC.
+
+       CONFIG_ARCH_BOARD=moteino-mega
+
+    CONFIG_ARCH_BOARD_name - For use in C code
+
+       CONFIG_ARCH_BOARD_MOTEINO_MEGA=y
+
+    CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
+       of delay loops
+
+    CONFIG_ENDIAN_BIG - define if big endian (default is little
+       endian)
+
+    CONFIG_RAM_SIZE - Describes the installed DRAM.  One of:
+
+       CONFIG_RAM_SIZE=(16*1024) - (16Kb)
+
+    CONFIG_RAM_START - The start address of installed SRAM
+
+       CONFIG_RAM_START=0x800100
+
+    CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
+       have LEDs
+
+    CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
+       stack. If defined, this symbol is the size of the interrupt
+        stack in bytes.  If not defined, the user task stacks will be
+      used during interrupt handling.
+
+    CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+
+    CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
+
+    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
+       cause a 100 second delay during boot-up.  This 100 second delay
+       serves no purpose other than it allows you to calibratre
+       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
+       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
+       the delay actually is 100 seconds.
+
+    Individual subsystems can be enabled:
+
+       CONFIG_AVR_INT0=n
+       CONFIG_AVR_INT1=n
+       CONFIG_AVR_INT2=n
+       CONFIG_AVR_INT3=n
+       CONFIG_AVR_INT4=n
+       CONFIG_AVR_INT5=n
+       CONFIG_AVR_INT6=n
+       CONFIG_AVR_INT7=n
+       CONFIG_AVR_WDT=n
+       CONFIG_AVR_TIMER0=n
+       CONFIG_AVR_TIMER1=n
+       CONFIG_AVR_TIMER2=n
+       CONFIG_AVR_TIMER3=n
+       CONFIG_AVR_SPI=n
+       CONFIG_AVR_USART0=y
+       CONFIG_AVR_USART1=n
+       CONFIG_AVR_ADC=n
+       CONFIG_AVR_ANACOMP=n
+       CONFIG_AVR_TWI=n
+
+   If the watchdog is enabled, this specifies the initial timeout.  Default
+  is maximum supported value.
+
+      CONFIG_WDTO_15MS
+      CONFIG_WDTO_30MS
+      CONFIG_WDTO_60MS
+      CONFIG_WDTO_120MS
+      CONFIG_WDTO_1250MS
+      CONFIG_WDTO_500MS
+      CONFIG_WDTO_1S
+      CONFIG_WDTO_2S
+      CONFIG_WDTO_4S
+      CONFIG_WDTO_8S
+
+ ATMEGA specific device driver settings
+
+    CONFIG_USARTn_SERIAL_CONSOLE - selects the USARTn for the
+       console and ttys0 (default is the USART0).
+    CONFIG_USARTn_RXBUFSIZE - Characters are buffered as received.
+       This specific the size of the receive buffer
+    CONFIG_USARTn_TXBUFSIZE - Characters are buffered before
+       being sent.  This specific the size of the transmit buffer
+    CONFIG_USARTn_BAUD - The configure BAUD of the USART.  Must be
+    CONFIG_USARTn_BITS - The number of bits.  Must be either 7 or 8.
+    CONFIG_USARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+    CONFIG_USARTn_2STOP - Two stop bits
+
+Configurations
+^^^^^^^^^^^^^^
+
+Common Configuration Notes
+--------------------------
+
+  1. Each MoteinoMEGA configuration is maintained in a sub-directory and
+     can be selected as follow:
+
+       cd tools
+       ./configure.sh moteino-mega/<subdir>
+       cd -
+       . ./setenv.sh
+
+     Where <subdir> is one of the configuration sub-directories described in
+     the following paragraph.
+
+     NOTE: You must also copy avr-libc header files, perhaps like:
+
+       cp -a /cygdrive/c/WinAVR/include/avr include/.
+
+  2. These configurations use the mconf-based configuration tool.  To
+     change a configurations using that tool, you should:
+
+     a. Build and install the kconfig-mconf tool.  See nuttx/README.txt
+        and misc/tools/
+
+     b. Execute 'make menuconfig' in nuttx/ in order to start the
+        reconfiguration process.
+
+  3. By default, all configurations assume the NuttX Buildroot toolchain
+     under Cygwin with Windows.  This is easily reconfigured:
+
+        CONFIG_HOST_WINDOWS=y
+        CONFIG_WINDOWS_CYGWIN=y
+        CONFIG_AVR_BUILDROOT=y
+
+Configuration Sub-Directories
+-----------------------------
+
+  hello:
+    The simple apps/examples/hello "Hello, World!" example.
+
+  nsh:
+    Configures the NuttShell (nsh) located at examples/nsh.  The
+    Configuration enables only the serial NSH interfaces.

configs/moteino-mega/hello/Make.defs

@@ -0,0 +1,98 @@
+############################################################################
+# configs/moteino-mega/hello/Make.defs
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/avr/src/avr/Toolchain.defs
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/hello/ld.script}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include"
+  ARCHXXINCLUDES =  $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx"
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/hello/ld.script
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+

configs/moteino-mega/hello/ld.script

@@ -0,0 +1,211 @@
+/**************************************************************************************
+ * configs/moteino-mega/hello/ld.script
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *  notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *  notice, this list of conditions and the following disclaimer in
+ *  the documentation and/or other materials provided with the
+ *  distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *  used to endorse or promote products derived from this software
+ *  without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ **************************************************************************************/
+
+/* Memory Regions *********************************************************************/
+/* -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ *                FLASH        | REGISTERS I/O       EXT I/O    ISRAM      | EEPROM
+ *                             |           REGISTERS REGISTERS             |
+ * -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ * ATMEGA1284P    0x0000 128Kb | 0x0000 32 0x0020 64 0x0060 160 0x0100 16Kb| 0x0000 4Kb
+ * -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ * *Memory configuration A
+ */
+
+MEMORY
+{
+  flash    (rx) : ORIGIN = 0, LENGTH = 128K
+  sram   (rw!x) : ORIGIN = 0x800100, LENGTH = 16K
+  eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 4K
+}
+
+OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr")
+OUTPUT_ARCH(avr:5)
+ENTRY(__start)
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+
+  .hash     : { *(.hash) }
+  .dynsym     : { *(.dynsym) }
+  .dynstr     : { *(.dynstr) }
+  .gnu.version  : { *(.gnu.version) }
+  .gnu.version_d  : { *(.gnu.version_d) }
+  .gnu.version_r  : { *(.gnu.version_r) }
+  .rel.init   : { *(.rel.init) }
+  .rela.init    : { *(.rela.init) }
+
+  .rel.text   :
+    {
+      *(.rel.text)
+      *(.rel.text.*)
+      *(.rel.gnu.linkonce.t*)
+    }
+
+  .rela.text    :
+    {
+      *(.rela.text)
+      *(.rela.text.*)
+      *(.rela.gnu.linkonce.t*)
+    }
+
+  .rel.fini   : { *(.rel.fini) }
+  .rela.fini    : { *(.rela.fini) }
+
+  .rel.rodata   :
+    {
+      *(.rel.rodata)
+      *(.rel.rodata.*)
+      *(.rel.gnu.linkonce.r*)
+    }
+
+  .rela.rodata  :
+    {
+      *(.rela.rodata)
+      *(.rela.rodata.*)
+      *(.rela.gnu.linkonce.r*)
+    }
+
+  .rel.data   :
+    {
+      *(.rel.data)
+      *(.rel.data.*)
+      *(.rel.gnu.linkonce.d*)
+    }
+
+  .rela.data    :
+    {
+      *(.rela.data)
+      *(.rela.data.*)
+      *(.rela.gnu.linkonce.d*)
+    }
+
+  .rel.ctors    : { *(.rel.ctors) }
+  .rela.ctors   : { *(.rela.ctors) }
+  .rel.dtors    : { *(.rel.dtors) }
+  .rela.dtors   : { *(.rela.dtors) }
+  .rel.got    : { *(.rel.got) }
+  .rela.got   : { *(.rela.got) }
+  .rel.bss    : { *(.rel.bss) }
+  .rela.bss   : { *(.rela.bss) }
+  .rel.plt    : { *(.rel.plt) }
+  .rela.plt   : { *(.rela.plt) }
+
+  .text     :
+  {
+    _stext = . ;
+    *(.vectors)
+    *(.init)
+    *(.handlers)
+    *(.text)
+    *(.text.*)
+    _etext = . ;
+  } > flash
+
+  _eronly = ABSOLUTE(.);
+
+  .data     :
+  {
+    _sdata = ABSOLUTE(.);
+    *(.data .data.*)
+    *(.gnu.linkonce.d.*)
+    CONSTRUCTORS
+    _edata = ABSOLUTE(.);
+  } > sram AT > flash
+
+  .bss      :
+  {
+    _sbss = ABSOLUTE(.);
+    *(.bss .bss.*)
+    *(.gnu.linkonce.b.*)
+    *(COMMON)
+    _ebss = ABSOLUTE(.);
+  } > sram
+
+  /* Global data not cleared after reset. */
+
+  .noinit     :
+  {
+    _snoinit = ABSOLUTE(.);
+    *(.noinit*)
+    _enoinit = ABSOLUTE(.);
+  } > sram
+
+  .eeprom     :
+  {
+    _seeprom = ABSOLUTE(.);
+    *(.eeprom*)
+    _eeeprom = ABSOLUTE(.);
+  } > eeprom
+
+  /* Stabs debugging sections.  */
+
+  .stab 0       : { *(.stab) }
+  .stabstr 0      : { *(.stabstr) }
+  .stab.excl 0    : { *(.stab.excl) }
+  .stab.exclstr 0   : { *(.stab.exclstr) }
+  .stab.index 0   : { *(.stab.index) }
+  .stab.indexstr 0  : { *(.stab.indexstr) }
+  .comment 0      : { *(.comment) }
+
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+
+  /* DWARF 1 */
+
+  .debug 0      : { *(.debug) }
+  .line 0       : { *(.line) }
+
+  /* GNU DWARF 1 extensions */
+
+  .debug_srcinfo 0  : { *(.debug_srcinfo) }
+  .debug_sfnames 0  : { *(.debug_sfnames) }
+
+  /* DWARF 1.1 and DWARF 2 */
+
+  .debug_aranges 0  : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+
+  /* DWARF 2 */
+
+  .debug_info 0   : { *(.debug_info) *(.gnu.linkonce.wi.*) }
+  .debug_abbrev 0   : { *(.debug_abbrev) }
+  .debug_line 0   : { *(.debug_line) }
+  .debug_frame 0    : { *(.debug_frame) }
+  .debug_str 0    : { *(.debug_str) }
+  .debug_loc 0    : { *(.debug_loc) }
+  .debug_macinfo 0  : { *(.debug_macinfo) }
+}

configs/moteino-mega/hello/setenv.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# configs/moteino-mega/hello/setenv.sh
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the WinAVR
+# toolchain under windows.  This is *not* the default install
+# location so you will probably have to edit this.  You will also have
+# to edit this if you install the Linux AVR toolchain as well
+#export TOOLCHAIN_BIN="/cygdrive/c/WinAVR/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_avr/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"

configs/moteino-mega/include/board.h

@@ -0,0 +1,97 @@
+/****************************************************************************
+ * configs/moteino-mega/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __CONFIGS_MOTEINO_MEGA_INCLUDE_BOARD_H
+#define __CONFIGS_MOTEINO_MEGA_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/* Clocking *****************************************************************/
+/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */
+
+#define BOARD_XTAL_FREQ        16000000         /* 16MHz crystal */
+#define BOARD_CPU_CLOCK        BOARD_XTAL_FREQ  /* F_CPU = 16MHz */
+
+/* LED definitions **********************************************************/
+
+/* The MoteinoMEGA has a single on-board LED connected to PortD, Pin 7 */
+
+#define LED_STARTED                0 /* OFF     ON  (never happens) */
+#define LED_HEAPALLOCATE           0 /* OFF     ON  (never happens) */
+#define LED_IRQSENABLED            0 /* OFF     ON  (never happens) */
+#define LED_STACKCREATED           1 /* ON      ON  (never happens) */
+#define LED_INIRQ                  2 /* OFF     NC  (momentary) */
+#define LED_SIGNAL                 2 /* OFF     NC  (momentary) */
+#define LED_ASSERTION              2 /* OFF     NC  (momentary) */
+#define LED_PANIC                  0 /* OFF     ON  (1Hz flashing) */
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_MOTEINO_MEGA_INCLUDE_BOARD_H */

configs/moteino-mega/nsh/Make.defs

@@ -0,0 +1,98 @@
+############################################################################
+# configs/moteino-mega/nsh/Make.defs
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/avr/src/avr/Toolchain.defs
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include"
+  ARCHXXINCLUDES =  $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx"
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+

configs/moteino-mega/nsh/ld.script

@@ -0,0 +1,211 @@
+/**************************************************************************************
+ * configs/moteino-mega/nsh/ld.script
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *  notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *  notice, this list of conditions and the following disclaimer in
+ *  the documentation and/or other materials provided with the
+ *  distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *  used to endorse or promote products derived from this software
+ *  without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ **************************************************************************************/
+
+/* Memory Regions *********************************************************************/
+/* -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ *                FLASH        | REGISTERS I/O       EXT I/O    ISRAM      | EEPROM
+ *                             |           REGISTERS REGISTERS             |
+ * -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ * ATMEGA1284P    0x0000 128Kb | 0x0000 32 0x0020 64 0x0060 160 0x0100 16Kb| 0x0000 4Kb
+ * -------------- ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
+ * *Memory configuration A
+ */
+
+MEMORY
+{
+  flash    (rx) : ORIGIN = 0, LENGTH = 128K
+  sram   (rw!x) : ORIGIN = 0x800100, LENGTH = 16K
+  eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 4K
+}
+
+OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr")
+OUTPUT_ARCH(avr:5)
+ENTRY(__start)
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+
+  .hash     : { *(.hash) }
+  .dynsym     : { *(.dynsym) }
+  .dynstr     : { *(.dynstr) }
+  .gnu.version  : { *(.gnu.version) }
+  .gnu.version_d  : { *(.gnu.version_d) }
+  .gnu.version_r  : { *(.gnu.version_r) }
+  .rel.init   : { *(.rel.init) }
+  .rela.init    : { *(.rela.init) }
+
+  .rel.text   :
+    {
+      *(.rel.text)
+      *(.rel.text.*)
+      *(.rel.gnu.linkonce.t*)
+    }
+
+  .rela.text    :
+    {
+      *(.rela.text)
+      *(.rela.text.*)
+      *(.rela.gnu.linkonce.t*)
+    }
+
+  .rel.fini   : { *(.rel.fini) }
+  .rela.fini    : { *(.rela.fini) }
+
+  .rel.rodata   :
+    {
+      *(.rel.rodata)
+      *(.rel.rodata.*)
+      *(.rel.gnu.linkonce.r*)
+    }
+
+  .rela.rodata  :
+    {
+      *(.rela.rodata)
+      *(.rela.rodata.*)
+      *(.rela.gnu.linkonce.r*)
+    }
+
+  .rel.data   :
+    {
+      *(.rel.data)
+      *(.rel.data.*)
+      *(.rel.gnu.linkonce.d*)
+    }
+
+  .rela.data    :
+    {
+      *(.rela.data)
+      *(.rela.data.*)
+      *(.rela.gnu.linkonce.d*)
+    }
+
+  .rel.ctors    : { *(.rel.ctors) }
+  .rela.ctors   : { *(.rela.ctors) }
+  .rel.dtors    : { *(.rel.dtors) }
+  .rela.dtors   : { *(.rela.dtors) }
+  .rel.got    : { *(.rel.got) }
+  .rela.got   : { *(.rela.got) }
+  .rel.bss    : { *(.rel.bss) }
+  .rela.bss   : { *(.rela.bss) }
+  .rel.plt    : { *(.rel.plt) }
+  .rela.plt   : { *(.rela.plt) }
+
+  .text     :
+  {
+    _stext = . ;
+    *(.vectors)
+    *(.init)
+    *(.handlers)
+    *(.text)
+    *(.text.*)
+    _etext = . ;
+  } > flash
+
+  _eronly = ABSOLUTE(.);
+
+  .data     :
+  {
+    _sdata = ABSOLUTE(.);
+    *(.data .data.*)
+    *(.gnu.linkonce.d.*)
+    CONSTRUCTORS
+    _edata = ABSOLUTE(.);
+  } > sram AT > flash
+
+  .bss      :
+  {
+    _sbss = ABSOLUTE(.);
+    *(.bss .bss.*)
+    *(.gnu.linkonce.b.*)
+    *(COMMON)
+    _ebss = ABSOLUTE(.);
+  } > sram
+
+  /* Global data not cleared after reset. */
+
+  .noinit     :
+  {
+    _snoinit = ABSOLUTE(.);
+    *(.noinit*)
+    _enoinit = ABSOLUTE(.);
+  } > sram
+
+  .eeprom     :
+  {
+    _seeprom = ABSOLUTE(.);
+    *(.eeprom*)
+    _eeeprom = ABSOLUTE(.);
+  } > eeprom
+
+  /* Stabs debugging sections.  */
+
+  .stab 0       : { *(.stab) }
+  .stabstr 0      : { *(.stabstr) }
+  .stab.excl 0    : { *(.stab.excl) }
+  .stab.exclstr 0   : { *(.stab.exclstr) }
+  .stab.index 0   : { *(.stab.index) }
+  .stab.indexstr 0  : { *(.stab.indexstr) }
+  .comment 0      : { *(.comment) }
+
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+
+  /* DWARF 1 */
+
+  .debug 0      : { *(.debug) }
+  .line 0       : { *(.line) }
+
+  /* GNU DWARF 1 extensions */
+
+  .debug_srcinfo 0  : { *(.debug_srcinfo) }
+  .debug_sfnames 0  : { *(.debug_sfnames) }
+
+  /* DWARF 1.1 and DWARF 2 */
+
+  .debug_aranges 0  : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+
+  /* DWARF 2 */
+
+  .debug_info 0   : { *(.debug_info) *(.gnu.linkonce.wi.*) }
+  .debug_abbrev 0   : { *(.debug_abbrev) }
+  .debug_line 0   : { *(.debug_line) }
+  .debug_frame 0    : { *(.debug_frame) }
+  .debug_str 0    : { *(.debug_str) }
+  .debug_loc 0    : { *(.debug_loc) }
+  .debug_macinfo 0  : { *(.debug_macinfo) }
+}

configs/moteino-mega/nsh/setenv.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# configs/moteino-mega/nsh/setenv.sh
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the WinAVR
+# toolchain under windows.  This is *not* the default install
+# location so you will probably have to edit this.  You will also have
+# to edit this if you install the Linux AVR toolchain as well
+#export TOOLCHAIN_BIN="/cygdrive/c/WinAVR/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_avr/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"

configs/moteino-mega/src/.gitignore

@@ -0,0 +1,2 @@
+/.depend
+/Make.dep

configs/moteino-mega/src/Makefile

@@ -0,0 +1,96 @@
+############################################################################
+# configs/moteino-mega/src/Makefile
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+ASRCS		=
+CSRCS		= up_boot.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS		+= up_leds.c
+endif
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(CONFIG_ARCH_FAMILY_AVR32),y)
+ARCH_SUBDIR	= avr32
+endif
+ifeq ($(CONFIG_ARCH_FAMILY_AVR),y)
+ARCH_SUBDIR	= avr
+endif
+
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(TOPDIR)/sched}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/common}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}"
+else
+  CFLAGS	+= -I "$(TOPDIR)/sched"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/chip"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/common"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/$(ARCH_SUBDIR)"
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, libboard$(LIBEXT))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep

configs/moteino-mega/src/moteino_mega_internal.h

@@ -0,0 +1,101 @@
+/****************************************************************************
+ * configs/moteino-mega/src/moteino-mega-internal.h
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __CONFIGS_MOTEINO_MEGA_SRC_MOTEINO_MEGA_INTERNAL_H
+#define __CONFIGS_MOTEINO_MEGA_SRC_MOTEINO_MEGA_INTERNAL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Name: atmega_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the Amber Web Server.
+ *
+ ************************************************************************************/
+
+#if defined(CONFIG_AVR_SPI1) || defined(CONFIG_AVR_SPI2)
+EXTERN void weak_function atmega_spiinitialize(void);
+#endif
+
+/************************************************************************************
+ * Name: atmega_ledinit
+ *
+ * Description:
+ *   Configure on-board LEDs if LED support has been selected.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+EXTERN void atmega_ledinit(void);
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_MOTEINO_MEGA_SRC_MOTEINO_MEGA_INTERNAL_H */

configs/moteino-mega/src/up_boot.c

@@ -0,0 +1,92 @@
+/************************************************************************************
+ * configs/moteino-mega/src/up_boot.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "atmega_internal.h"
+#include "moteino_mega_internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: up_boardinitialize
+ *
+ * Description:
+ *   All ATMega architectures must provide the following entry point.  This entry
+ *   point is called early in the intitialization -- after all memory has been
+ *   configured and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void up_boardinitialize(void)
+{
+  /* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak
+   * function atmega_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_AVR_SPI1) || defined(CONFIG_AVR_SPI2)
+  if (atmega_spiinitialize)
+    {
+      atmega_spiinitialize();
+    }
+#endif
+
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  atmega_ledinit();
+#endif
+}

configs/moteino-mega/src/up_leds.c

@@ -0,0 +1,189 @@
+/****************************************************************************
+ * configs/moteino-mega/src/up_leds.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <debug.h>
+#include <avr/io.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "atmega_internal.h"
+#include "moteino_mega_internal.h"
+
+#ifdef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
+ * with CONFIG_DEBUG_VERBOSE too)
+ */
+
+#ifdef CONFIG_DEBUG_LEDS
+#  define leddbg  lldbg
+#  ifdef CONFIG_DEBUG_VERBOSE
+#    define ledvdbg lldbg
+#  else
+#    define ledvdbg(x...)
+#  endif
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool g_ncoff;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: atmega_ledinit
+ ****************************************************************************/
+
+void atmega_ledinit(void)
+{
+  /* The MoteinoMEGA's single LED is on Port D, Pin 7.  Configure this pin as an
+   * output and turn it OFF.  The "other" side of the LED is onnected to
+   * ground through a resistor.  Therefore, a logic value of 0 should turn
+   * the LED off.
+   */
+
+  DDRD   |= (1 << 7);
+  PORTD  &= ~(1 << 7);
+  g_ncoff = true;
+}
+
+/****************************************************************************
+ * Name: board_led_on
+ ****************************************************************************/
+
+void board_led_on(int led)
+{
+ /*                         ON      OFF
+  * LED_STARTED        0    OFF     ON  (never happens)
+  * LED_HEAPALLOCATE   0    OFF     ON  (never happens)
+  * LED_IRQSENABLED    0    OFF     ON  (never happens)
+  * LED_STACKCREATED   1    ON      ON  (never happens)
+  * LED_INIRQ          2    OFF     NC  (momentary)
+  * LED_SIGNAL         2    OFF     NC  (momentary)
+  * LED_ASSERTION      2    OFF     NC  (momentary)
+  * LED_PANIC          0    OFF     ON  (1Hz flashing)
+  */
+
+  switch (led)
+    {
+    case 0:
+      /* The steady state is OFF */
+
+      g_ncoff = true;
+
+    case 2:
+      /* Turn the LED off */
+
+      PORTD &= ~(1 << 7);
+      break;
+
+    case 1:
+      /* The steady state is ON */
+
+      PORTD |= (1 << 7);
+      g_ncoff = false;
+      break;
+
+    default:
+      return;
+    }
+}
+
+/****************************************************************************
+ * Name: board_led_off
+ ****************************************************************************/
+
+void board_led_off(int led)
+{
+ /*                         ON      OFF
+  * LED_STARTED        0    OFF     ON  (never happens)
+  * LED_HEAPALLOCATE   0    OFF     ON  (never happens)
+  * LED_IRQSENABLED    0    OFF     ON  (never happens)
+  * LED_STACKCREATED   1    ON      ON  (never happens)
+  * LED_INIRQ          2    OFF     NC  (momentary)
+  * LED_SIGNAL         2    OFF     NC  (momentary)
+  * LED_ASSERTION      2    OFF     NC  (momentary)
+  * LED_PANIC          0    OFF     ON  (1Hz flashing)
+  */
+
+  switch (led)
+    {
+    case 2:
+      /* If the "no-change" state is OFF, then turn the LED off */
+
+      if (g_ncoff)
+        {
+          PORTD &= ~(1 << 7);
+          break;
+        }
+
+      /* Otherwise, fall through to turn the LED ON */
+
+    case 0:
+    case 1:
+      /* Turn the LED on */
+
+      PORTD |= (1 << 7);
+      break;
+
+    default:
+      return;
+    }
+}
+
+#endif /* CONFIG_ARCH_LEDS */