ea_lpc2478

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ea_lpc2478 [2011/09/27 19:51] – adminea_lpc2478 [2011/09/27 21:26] (current) – [Building uClinux] admin
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 Embedded Artists provides patches for u-boot 1.1.6. This is a very old U-boot but we have to use it as our board is not supported on the main u-boot development line. The version of U-boot that we are using, 1.1.6, does not seem to be compilable under Codesourcery g++. A non-EABI tool is needed, like bare metal, therefore crosstool-ng is needed. Embedded Artists provides patches for u-boot 1.1.6. This is a very old U-boot but we have to use it as our board is not supported on the main u-boot development line. The version of U-boot that we are using, 1.1.6, does not seem to be compilable under Codesourcery g++. A non-EABI tool is needed, like bare metal, therefore crosstool-ng is needed.
  
-build a u-boot.hex+  # build a u-boot.hex
   cd u-boot   cd u-boot
   make distclean   make distclean
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 We can connect to the serial port terminal with minicom, using these settings: 115200 8N1 no flow control. We can connect to the serial port terminal with minicom, using these settings: 115200 8N1 no flow control.
  
 +===== Building uClinux =====
 +
 +   tar -xzvf /home/juan/projects/ARM/arm7dev/uClinux-dist-20070130.tar.gz 
 +   cd uClinux-dist/
 +   rm -r linux-2.*
 +   tar -xzvf /home/juan/projects/ARM/arm7dev/linux-2.6.21.tar.gz 
 +   mv linux-2.6.21/ linux-2.6.x
 +   patch -p1 < /home/juan/projects/ARM/arm7dev/lpc2478_ea_patches/ea-uClinux-081020.diff 
 +   patch -p1 < /home/juan/projects/ARM/arm7dev/lpc2478_ea_patches/ea-v3_1_incr1.diff 
 +   export ARCH=arm
 +   export CPU=arm7tdmi 
 +   PATH=$HOME/install/usr/local/bin:${PATH}
 +   make menuconfig
 +   make CROSS_COMPILE=arm-elf-
 +
 +   compile problem, adding '#include <limits.h>' after strings.h in scripts/mod/sumversion.c fixes the issue. 
 +
 +   make CROSS_COMPILE=arm-elf- clean
 +   make CROSS_COMPILE=arm-elf- 
 +
 +   make ARCH=arm CROSS_COMPILE=arm-uclinuxeabi- menuconfig
 +   make ARCH=arm CROSS_COMPILE=arm-uclinuxeabi- all
 +   
 +   disable I2C in linux config
 +   
 +   make ARCH=arm CROSS_COMPILE=arm-uclinuxeabi- CC=/home/juan/CodeSourcery/Sourcery_G++_Lite/bin/arm-uclinuxeabi-gcc LD=/home/juan/CodeSourcery/Sourcery_G++_Lite/bin/arm-uclinuxeabi-ld AR=/home/juan/CodeSourcery/Sourcery_G++_Lite/bin/arm-uclinuxeabi-ar NM=/home/juan/CodeSourcery/Sourcery_G++_Lite/bin/arm-uclinuxeabi-nm OBJCOPY=/home/juan/CodeSourcery/Sourcery_G++_Lite/bin/arm-uclinuxeabi-objcopy all
 +   
 +   why isn't CROSS_COMPILE variable recognized within linux/Makefile?
 +   
 ====== Some links ====== ====== Some links ======
 our development kit:\\ our development kit:\\
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