Add LM3S6918 support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1756 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 123 insertions, 0 deletions

diff --git a/nuttx/configs/eagle100/README.txt b/nuttx/configs/eagle100/README.txt
new file mode 100644
index 000000000..f60dcd48c
--- /dev/null
+++ b/nuttx/configs/eagle100/README.txt
@@ -0,0 +1,123 @@
+README
+^^^^^^
+
+Toolchain
+^^^^^^^^^
+
+  A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
+  be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
+  different from the default).
+
+  If you have no Cortex-M3 toolchain, one can be downloaded from the NuttX
+  SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
+
+  1. You must have already configured Nuttx in <some-dir>/nuttx.
+
+     cd tools
+     ./configure.sh eagle100/<sub-dir>
+
+  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/cortexm3-defconfig-4.3.3 .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.
+
+Eagle100-specific Configuration Options
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+	CONFIG_ARCH - Identifies the arch/ subdirectory.  This should
+	   be set to:
+
+	   CONFIG_ARCH=arm
+
+	CONFIG_ARCH_name - For use in C code:
+
+	   CONFIG_ARCH_ARM=y
+
+	CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+
+	   CONFIG_ARCH_CHIP=lm3s
+
+	CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
+	   chip:
+
+	   CONFIG_ARCH_CHIP_LM3S6918
+
+	CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
+	   hence, the board that supports the particular chip or SoC.
+
+	   CONFIG_ARCH_BOARD=eagle100 (for the MicroMint Eagle-100 development board)
+
+	CONFIG_ARCH_BOARD_name - For use in C code
+
+	   CONFIG_ARCH_BOARD_EAGLE100
+
+	CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
+	   of delay loops
+
+	CONFIG_ENDIAN_BIG - define if big endian (default is little
+	   endian)
+
+	CONFIG_DRAM_SIZE - Describes the installed DRAM (SRAM in this case):
+
+	   CONFIG_DRAM_SIZE=0x00010000 (64Kb)
+
+	CONFIG_DRAM_START - The start address of installed DRAM
+
+	   CONFIG_DRAM_SIZE=0x00000000
+
+	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_BOOTLOADER - Configure to use the MicroMint Eagle-100
+	   Ethernet bootloader.
+
+  LM3S6818 specific device driver settings
+
+	CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
+	   console and ttys0 (default is the UART0).
+	CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
+	   This specific the size of the receive buffer
+	CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
+	   being sent.  This specific the size of the transmit buffer
+	CONFIG_UARTn_BAUD - The configure BAUD of the UART.  Must be
+	CONFIG_UARTn_BITS - The number of bits.  Must be either 7 or 8.
+	CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+	CONFIG_UARTn_2STOP - Two stop bits
+
+Configurations
+^^^^^^^^^^^^^^
+
+Each Eagle-100 configuration is maintained in a sudirectory and
+can be selected as follow:
+
+	cd tools
+	./configure.sh eagle100/<subdir>
+	cd -
+	. ./setenv.sh
+
+Where <subdir> is one of the following:
+
+ostest
+^^^^^^
+
+This configuration directory, performs a simple OS test using
+examples/ostest.