Difference between revisions of "Category:BareMetal"

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'''Code used:'''<br />
 
'''Code used:'''<br />
The Hello World C code is from:<br />
+
:The Hello World C code is from:<br />
http://balau82.wordpress.com/2010/02/28/hello-world-for-bare-metal-arm-using-qemu/<br />
+
:http://balau82.wordpress.com/2010/02/28/hello-world-for-bare-metal-arm-using-qemu/<br />
The commands used in serial console are from:<br />
+
:The commands used in serial console are from:<br />
http://gumstix.8.n6.nabble.com/Running-program-on-bare-metal-Overo-td4965440.html<br />
+
:http://gumstix.8.n6.nabble.com/Running-program-on-bare-metal-Overo-td4965440.html<br />
The code used in Hello World is modified from:<br />
+
:The code used in Hello World is modified from:<br />
The Definitive Guide to the ARM Cortex-M3 P172-174<br />
+
:The Definitive Guide to the ARM Cortex-M3 P172-174<br />
  
 
'''Cross compiling tool used:'''<br />
 
'''Cross compiling tool used:'''<br />
http://www.mentor.com/embedded-software/sourcery-tools/sourcery-codebench/editions/lite-edition/<br />
+
:http://www.mentor.com/embedded-software/sourcery-tools/sourcery-codebench/editions/lite-edition/<br />
  
 
'''Manuals:'''<br />
 
'''Manuals:'''<br />
Uboot:<br />
+
:Uboot:<br />
http://www.denx.de/wiki/view/DULG/Manual<br />
+
:http://www.denx.de/wiki/view/DULG/Manual<br />
Linker script:<br />
+
:Linker script:<br />
http://sourceware.org/binutils/docs/ld/Scripts.html#Scripts<br />
+
:http://sourceware.org/binutils/docs/ld/Scripts.html#Scripts<br />
ftp://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_mono/ld.html<br />
+
:ftp://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_mono/ld.html<br />
Compiler:<br />
+
:Compiler:<br />
http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html<br />
+
:http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html<br />
  
 
'''Futher readings:'''<br />
 
'''Futher readings:'''<br />
http://stackoverflow.com/questions/6870712/beagleboard-bare-metal-programming<br />
+
:http://stackoverflow.com/questions/6870712/beagleboard-bare-metal-programming<br />
http://wiki.osdev.org/Beagleboard<br />
+
:http://wiki.osdev.org/Beagleboard<br />
 +
:Building Bare-Metal ARM Systems with GNU
 +
'''TRM(Technical Reference Manuals):'''<br />
 +
:TI OMAP35x Applications Processor Technical Reference Manual<br />
 +
:ARM Architecture Reference Manual<br />
 +
:ARM Assembly Language Tools User's Guide<br />
 +
:RealView Platform Baseboard for Cortex-A8 User Guide<br />

Latest revision as of 16:05, 21 September 2012

Setup the cross compiling environment

The one I used is Sourcery CodeBench Lite Edition, you can get it from its website.
Please choose the eabi verison and the tar.bz2 one. I used arm-2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
Untar the file:

$ mkdir ~/overo-standalone
$ cd ~/overo-standalone
$ tar xvjf arm-2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2

Add the bin to your PATH:

$ export PATH=$PATH:~/overo-standalone/arm-2008q3/bin

Write the program

The following two Hello World programs have been tested on an overo.
You can get source files from here.

Compile the program

Assembly verison:

$ cd asm/

Use make to compile the asm program

$ make

C version:

$ cd c/

Run the compile file in c program folder

$ sh compile

Run the program

You needed a flashed, bootable MicroSD. You can make one by using Sakoman's scripts (mkcard.sh and mksdcard.sh).
Copy the .bin file generated by the compiler to the boot drive on the SD card:

$ cp *.bin /media/boot/

Umount the SD card

$ umount /media/boot
$ umount /media/rootfs

Plug the SD card in overo and connect the overo on a Tobi expansion board.
Power it up and go into serial console.

When the console prompt "Hit any key to stop autoboot", please hit any key to interrupt.
And run:

# mmc list
# mmc part
# fatls mmc 0:1
# fatload mmc 0:1 0x80200000 boot.bin
# go 0x80200000

By now you should see "Hello world!" poping in the console.

References

Code used:

The Hello World C code is from:
http://balau82.wordpress.com/2010/02/28/hello-world-for-bare-metal-arm-using-qemu/
The commands used in serial console are from:
http://gumstix.8.n6.nabble.com/Running-program-on-bare-metal-Overo-td4965440.html
The code used in Hello World is modified from:
The Definitive Guide to the ARM Cortex-M3 P172-174

Cross compiling tool used:

http://www.mentor.com/embedded-software/sourcery-tools/sourcery-codebench/editions/lite-edition/

Manuals:

Uboot:
http://www.denx.de/wiki/view/DULG/Manual
Linker script:
http://sourceware.org/binutils/docs/ld/Scripts.html#Scripts
ftp://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/html_mono/ld.html
Compiler:
http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html

Futher readings:

http://stackoverflow.com/questions/6870712/beagleboard-bare-metal-programming
http://wiki.osdev.org/Beagleboard
Building Bare-Metal ARM Systems with GNU

TRM(Technical Reference Manuals):

TI OMAP35x Applications Processor Technical Reference Manual
ARM Architecture Reference Manual
ARM Assembly Language Tools User's Guide
RealView Platform Baseboard for Cortex-A8 User Guide

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