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Update all config README.txt files to show that they use the EABI buildroot toolchain

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5218 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-10-06 17:29:36 +00:00
parent e9fade40d0
commit bd8716842c
24 changed files with 2648 additions and 1612 deletions
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configs/lpcxpresso-lpc1768/README.txt
+23 -6
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@@ -11,7 +11,9 @@ Contents
Embedded Artist's Base Board
Development Environment
GNU Toolchain Options
NuttX buildroot Toolchain
NuttX EABI "buildroot" Toolchain
NuttX OABI "buildroot" Toolchain
NXFLAT Toolchain
Code Red IDE
LEDs
LPCXpresso Configuration Options
@@ -406,8 +408,8 @@ Code Red IDE
All of the above steps are automated in the bash script flash.sh that can
be found in the configs/lpcxpresso/tools directory.
NuttX buildroot Toolchain
^^^^^^^^^^^^^^^^^^^^^^^^^
NuttX EABI "buildroot" 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
@@ -430,7 +432,7 @@ NuttX buildroot Toolchain
4. cd <some-dir>/buildroot
5. cp configs/cortexm3-defconfig-4.3.3 .config
5. cp configs/cortexm3-eabi-defconfig-4.6.3 .config
6. make oldconfig
@@ -440,10 +442,25 @@ NuttX buildroot Toolchain
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
details PLUS some special instructions that you will need to follow if you
are building a Cortex-M3 toolchain for Cygwin under Windows.
NOTE: This is an OABI toolchain.
NuttX OABI "buildroot" Toolchain
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The older, OABI buildroot toolchain is also available. To use the OABI
toolchain:
1. When building the buildroot toolchain, either (1) modify the cortexm3-eabi-defconfig-4.6.3
configuration to use EABI (using 'make menuconfig'), or (2) use an exising OABI
configuration such as cortexm3-defconfig-4.3.3
2. Modify the Make.defs file to use the OABI converntions:
+CROSSDEV = arm-nuttx-elf-
+ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
-CROSSDEV = arm-nuttx-eabi-
-ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
NXFLAT Toolchain
^^^^^^^^^^^^^^^^