Add hello configuratin for AVR

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3699 42af7a65-404d-4744-a932-0658087f49c3

arch/avr/src/at90usb/at90usb_lowconsole.c

@@ -56,7 +56,7 @@
  * Private Definitions
  ******************************************************************************/
 
-/* Baud rate settings for normal and double speed settings  */
+/* Baud rate settings for normal and double speed modes  */
 
 #define AVR_NORMAL_UBRR1 \
   ((((BOARD_CPU_CLOCK / 16) + (CONFIG_USART1_BAUD / 2)) / (CONFIG_USART1_BAUD)) - 1)
@@ -100,13 +100,20 @@
 #    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
 #    define UART1_DOUBLE_SPEED 1
 #  endif
-#else
+#elif BOARD_CPU_CLOCK <= 16000000
 #  if CONFIG_USART1_BAUD <= 38400
 #    define AVR_UBRR1 AVR_NORMAL_UBRR1
 #  else
 #    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
 #    define UART1_DOUBLE_SPEED 1
 #  endif
+#else
+#  if CONFIG_USART1_BAUD <= 57600
+#    define AVR_UBRR1 AVR_NORMAL_UBRR1
+#  else
+#    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
+#    define UART1_DOUBLE_SPEED 1
+#  endif
 #endif
 
 /******************************************************************************

arch/avr/src/atmega/atmega_lowconsole.c

@@ -55,7 +55,7 @@
  * Private Definitions
  ******************************************************************************/
 
-/* USART0 Baud rate settings for normal and double speed settings  */
+/* USART0 Baud rate settings for normal and double speed modes  */
 
 #define AVR_NORMAL_UBRR0 \
   (((((BOARD_CPU_CLOCK / 16) + (CONFIG_USART0_BAUD / 2)) / (CONFIG_USART0_BAUD)) - 1)
@@ -99,16 +99,23 @@
 #    define AVR_UBRR0 AVR_DBLSPEED_UBRR0
 #    define UART0_DOUBLE_SPEED 1
 #  endif
-#else
+#elif BOARD_CPU_CLOCK <= 16000000
 #  if CONFIG_USART0_BAUD <= 38400
 #    define AVR_UBRR0 AVR_NORMAL_UBRR0
 #  else
 #    define AVR_UBRR0 AVR_DBLSPEED_UBRR0
 #    define UART0_DOUBLE_SPEED 1
 #  endif
+#else
+#  if CONFIG_USART0_BAUD <= 57600
+#    define AVR_UBRR0 AVR_NORMAL_UBRR0
+#  else
+#    define AVR_UBRR0 AVR_DBLSPEED_UBRR0
+#    define UART0_DOUBLE_SPEED 1
+#  endif
 #endif
 
-/* USART1 Baud rate settings for normal and double speed settings  */
+/* USART1 Baud rate settings for normal and double speed modes  */
 
 #define AVR_NORMAL_UBRR1 \
   ((((BOARD_CPU_CLOCK / 16) + (CONFIG_USART1_BAUD / 2)) / (CONFIG_USART1_BAUD)) - 1)
@@ -152,13 +159,20 @@
 #    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
 #    define UART1_DOUBLE_SPEED 1
 #  endif
-#else
+#elif BOARD_CPU_CLOCK <= 16000000
 #  if CONFIG_USART1_BAUD <= 38400
 #    define AVR_UBRR1 AVR_NORMAL_UBRR1
 #  else
 #    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
 #    define UART1_DOUBLE_SPEED 1
 #  endif
+#else
+#  if CONFIG_USART1_BAUD <= 57600
+#    define AVR_UBRR1 AVR_NORMAL_UBRR1
+#  else
+#    define AVR_UBRR1 AVR_DBLSPEED_UBRR1
+#    define UART1_DOUBLE_SPEED 1
+#  endif
 #endif
 
 /******************************************************************************

arch/avr/src/avr/up_dumpstate.c

@@ -123,28 +123,28 @@ static inline void up_registerdump(void)
 
   if (current_regs)
     {
-      lldbg("R%d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+      lldbg("R%02d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
             0,
             current_regs[REG_R0],  current_regs[REG_R1],
             current_regs[REG_R2],  current_regs[REG_R3],
             current_regs[REG_R4],  current_regs[REG_R5],
             current_regs[REG_R6],  current_regs[REG_R7]);
 
-      lldbg("R%d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+      lldbg("R%02d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
             8,
             current_regs[REG_R8],  current_regs[REG_R9],
             current_regs[REG_R10], current_regs[REG_R11],
             current_regs[REG_R12], current_regs[REG_R13],
             current_regs[REG_R14], current_regs[REG_R15]);
 
-      lldbg("R%d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+      lldbg("R%02d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
             16,
             current_regs[REG_R16], current_regs[REG_R17],
             current_regs[REG_R18], current_regs[REG_R19],
             current_regs[REG_R20], current_regs[REG_R21],
             current_regs[REG_R22], current_regs[REG_R23]);
 
-      lldbg("R%d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
+      lldbg("R%02d: %02x %02x %02x %02x %02x %02x %02x %02x\n",
             24,
             current_regs[REG_R24], current_regs[REG_R25],
             current_regs[REG_R26], current_regs[REG_R27],
@@ -192,7 +192,7 @@ void up_dumpstate(void)
 
   /* Get the limits on the interrupt stack memory */
 
-#if CONFIG_ARCH_INTERRUPTSTACK > 3
+#if CONFIG_ARCH_INTERRUPTSTACK > 0
   istackbase = (uint16_t)&g_intstackbase;
   istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4;
 

configs/amber/README.txt

@@ -344,4 +344,6 @@ Where <subdir> is one of the following:
 
   ostest:
     This configuration directory, performs a simple OS test using
-    apps/examples/ostest.
+    apps/examples/ostest.  NOTE:  The OS test is quite large.  In order
+    to get it to fit within AVR memory constraints, it will probably be
+    necessary to disable some OS features.

configs/amber/ostest/defconfig

@@ -139,7 +139,7 @@ CONFIG_AVR_TWI=n
 CONFIG_USART0_SERIAL_CONSOLE=y
 CONFIG_USART0_TXBUFSIZE=256
 CONFIG_USART0_RXBUFSIZE=256
-CONFIG_USART0_BAUD=115200
+CONFIG_USART0_BAUD=38400
 CONFIG_USART0_BITS=8
 CONFIG_USART0_PARITY=0
 CONFIG_USART0_2STOP=0
@@ -147,7 +147,7 @@ CONFIG_USART0_2STOP=0
 CONFIG_USART1_SERIAL_CONSOLE=n
 CONFIG_USART1_TXBUFSIZE=256
 CONFIG_USART1_RXBUFSIZE=256
-CONFIG_USART1_BAUD=115200
+CONFIG_USART1_BAUD=38400
 CONFIG_USART1_BITS=8
 CONFIG_USART1_PARITY=0
 CONFIG_USART1_2STOP=0

configs/micropendous3/README.txt

@@ -15,6 +15,7 @@ Contents
   o Pin Usage
   o Serial Console
   o Atmel mkII Connection
+  o DFU Bootloader
   o Toolchains
   o Windows Native Toolchains
   o NuttX buildroot Toolchain
@@ -156,15 +157,20 @@ Atmel mkII Connection
   Pin 6 nSRT           Pin 5 Reset
   Pin 9 TDI            Pin 4 MOSI
 
-Connect your Micropendous board programmed with AVRISP firmware to another AVR using SPI (you can even connect to another USB AVR board to program its' bootloader):
+DFU Bootloader
+^^^^^^^^^^^^^^
 
-Micropendous	Target AVR
+There is also an DFU bootloader that resides in the upper 8Kb of FLASH
-PB4	RESET
+(unless you ERASE the flash with with ICE).  You can enter this bootloader
-PB1(SCK)	SCK
+(if it is in FLASH) by:
-PB2(MOSI)	MOSI/PDI
+
-PB3(MISO)	MISO/PDO
+Holding both the SW1 (RESET) and SW2, then releasing SW1 while continuing
-GND	GND+AGND
+to hold SW2.  SW2 connects to the PE2/HWB signal and causes a reset into
-Vcc	Vcc+AVcc
+the bootloader memory region.
+
+Then you can use FLIP to load code into FLASH (available at the Atmel Web
+Site).  The DFU USB driver for the DFU bootload is available in the usb
+subdirectory in the FLIP installation location.
 
 Serial Console
 ^^^^^^^^^^^^^^
@@ -498,6 +504,31 @@ NOTE: You must also copy avr-libc header files, perhaps like:
 
 Where <subdir> is one of the following:
 
+  hello:
+    The simple apps/examples/hello "Hello, World!" example.
+
+    FLASH/SRAM Requirements (as of 6/12/2011):
+
+      $ avr-elf-size nuttx
+       text    data     bss     dec     hex filename
+      31064    1075     449   32588    7f4c nuttx
+
+    Strings are in SRAM.
+
   ostest:
     This configuration directory, performs a simple OS test using
-    apps/examples/ostest.
+    apps/examples/ostest. NOTE:  The OS test is quite large.  In order
+    to get it to fit within AVR memory constraints, it will probably be
+    necessary to disable some OS features.
+
+    As currently configured, This example will not fit into FLASH
+    or smaller AT90USB devices (or into the RAM of *any* AT90USB
+    devices).
+
+    FLASH/SRAM Requirements (as of 6/12/2011):
+
+      $ avr-elf-size nuttx
+       text    data   bss       dec    hex  filename
+      67386   15583   10414   93383   16cc7 nuttx
+
+    Strings are in SRAM.

configs/micropendous3/hello/Make.defs

@@ -0,0 +1,149 @@
+############################################################################
+# configs/micropendous3/hello/Make.defs
+#
+#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 ${TOPDIR}/.config
+
+# Setup for the selected toolchain
+
+ifeq ($(CONFIG_AVR_WINAVR),y)
+  # WinAVR toolchain under Windows/Cygwin
+  CROSSDEV = avr-
+  WINTOOL = y
+  MAXOPTIMIZATION = -O2
+  ARCHCPUFLAGS = -mmcu=at90usb647
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+
+ifeq ($(CONFIG_AVR_LINUXGCC),y)
+  # GCC toolchain under Linux
+  CROSSDEV = avr-
+  MAXOPTIMIZATION = -O2
+  ARCHCPUFLAGS = -mmcu=at90usb647
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+
+ifeq ($(CONFIG_AVR_BUILDROOT),y)
+  # NuttX buildroot GCC toolchain under Linux or Cygwin
+  CROSSDEV = avr-elf-
+  MAXOPTIMIZATION = -O2
+  ARCHCPUFLAGS = -mmcu=at90usb647
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) -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
+else
+  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.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+define PREPROCESS
+	@echo "CPP: $1->$2"
+	@$(CPP) $(CPPFLAGS) $1 -o $2
+endef
+
+define COMPILE
+	@echo "CC: $1"
+	@$(CC) -c $(CFLAGS) $1 -o $2
+endef
+
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
+define ASSEMBLE
+	@echo "AS: $1"
+	@$(CC) -c $(AFLAGS) $1 -o $2
+endef
+
+define ARCHIVE
+	echo "AR: $2"; \
+	$(AR) $1 $2 || { echo "$(AR) $1 $2 FAILED!" ; exit 1 ; }
+endef
+
+define CLEAN
+	@rm -f *.o *.a
+endef
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+

configs/micropendous3/hello/appconfig

@@ -0,0 +1,39 @@
+############################################################################
+# configs/micropendous3/hello/appconfig
+#
+#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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.
+#
+############################################################################
+
+# Path to example in apps/examples containing the user_start entry point
+
+CONFIGURED_APPS += examples/hello
+

configs/micropendous3/hello/ld.script

@@ -0,0 +1,202 @@
+/****************************************************************************
+ * configs/micropendous3/hello/ld.script
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 ***********************************************************/
+
+MEMORY
+{
+	flash    (rx) : ORIGIN = 0, LENGTH = 128K
+	sram   (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0
+	eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 64K
+}
+
+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(.);		/* See below										*/
+
+	.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/micropendous3/hello/setenv.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# configs/micropendous3/hello/setenv.sh
+#
+#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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="${PATH}"
+fi
+
+# This the Cygwin path to the location where I installed the WinAVR
+# toolchain under windows.  This is *not* the default install
+# location so you will probably have to edit this.  You will also have
+# to edit this if you install the Linux AVR toolchain as well
+#export TOOLCHAIN_BIN="/cygdrive/c/WinAVR/bin"
+
+# This the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${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/micropendous3/ostest/defconfig

@@ -142,7 +142,7 @@ CONFIG_AVR_TWI=n
 CONFIG_USART1_SERIAL_CONSOLE=y
 CONFIG_USART1_TXBUFSIZE=256
 CONFIG_USART1_RXBUFSIZE=256
-CONFIG_USART1_BAUD=115200
+CONFIG_USART1_BAUD=38400
 CONFIG_USART1_BITS=8
 CONFIG_USART1_PARITY=0
 CONFIG_USART1_2STOP=0