Difference between revisions of "User:Batydm"

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== Contributions ==
 
== Contributions ==
 
Most of my work is with the BeagleBoard hardware.  I helped with pages on [[BeagleBoardPWM|PWM on the BeagleBoard]] and [[Interfacing with I2C Devices|I2C on the BeagleBoard]].  I created the page on [[BeagleBoard Hardware Interfacing|Interfacing with the BeagleBoard hardware]].  This page contains a variety of information on how to make a board to interface with the BeagleBoard, including dealing with power and level shifting.
 
Most of my work is with the BeagleBoard hardware.  I helped with pages on [[BeagleBoardPWM|PWM on the BeagleBoard]] and [[Interfacing with I2C Devices|I2C on the BeagleBoard]].  I created the page on [[BeagleBoard Hardware Interfacing|Interfacing with the BeagleBoard hardware]].  This page contains a variety of information on how to make a board to interface with the BeagleBoard, including dealing with power and level shifting.
 
== Listings From Embedded Linux Primer ==
 
 
{|
 
! Number
 
! Page
 
! Caption
 
! Listing
 
! Notes
 
|-
 
| 2-1
 
| 2-6
 
| Initial Bootloader Serial Output
 
| <pre>
 
Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
 
Reading boot sector
 
Loading u-boot.bin from mmc
 
 
 
U-Boot 2009.11-rc1 (Jan 08 2010 - 21:19:52)
 
 
OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz
 
OMAP3 Beagle board + LPDDR/NAND
 
I2C:  ready
 
DRAM:  256 MB
 
NAND:  256 MiB
 
In:    serial
 
Out:  serial
 
Err:  serial
 
Board revision C1/C2/C3
 
Die ID #5160000300000000040323091101f01a
 
Hit any key to stop autoboot:  0
 
OMAP3 beagleboard.org #
 
</pre>
 
| This is from a Revision C3 Beagle.
 
|-
 
| 2-2
 
| 2-7
 
| Loading the Linux Kernel
 
| <pre>
 
3001004 bytes read
 
Booting from mmc ...
 
## Booting kernel from Legacy Image at 82000000 ...
 
  Image Name:  Angstrom/2.6.29/beagleboard
 
  Image Type:  ARM Linux Kernel Image (uncompressed)
 
  Data Size:    3000940 Bytes =  2.9 MB
 
  Load Address: 80008000
 
  Entry Point:  80008000
 
  Verifying Checksum ... OK
 
  Loading Kernel Image ... OK
 
OK
 
 
Starting kernel ...
 
 
Uncompressing Linux.... done, booting the kernel.
 
</pre>
 
|
 
|-
 
| 2-3
 
| 2-9
 
| Linux Final Boot Messages
 
| <pre>
 
Starting portmap daemon: portmap.
 
Unknown HZ value! (75) Assume 100.
 
net.ipv4.conf.default.rp_filter = 1
 
net.ipv4.conf.all.rp_filter = 1
 
hwclock: can't open '/dev/misc/rtc': No such file or directory
 
Sat Mar 13 23:56:00 GMT 2010
 
hwclock: can't open '/dev/misc/rtc': No such file or directory
 
INIT: Entering runlevel: 5
 
Starting system message bus: dbus.
 
Starting Hardware abstraction layer hald
 
Configuring leds:
 
  beagleboard::usr0: heartbeat
 
  beagleboard::usr1: mmc0
 
Starting Dropbear SSH server: modprobe: FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/net/ipv6/ipv6.ko': No such file or directory
 
 
modprobe: FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/net/ipv6/ipv6.ko': No such file or directory
 
 
dropbear.
 
Starting advanced power management daemon: No APM support in kernel
 
(failed.)
 
Starting Samba: smbd nmbd.
 
Starting syslogd/klogd: done
 
Starting internet superserver: xinetd.
 
* Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon
 
[ ok ]
 
Starting Network connection manager daemon: NetworkManager.
 
Loading kernel modules for gstreamer-ti... FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/dsp/cmemk.ko': No such file or directory
 
FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/dsp/dsplinkk.ko': No such file or directory
 
WARNING: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/dsp/dsplinkk.ko': No such file or directory
 
FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/dsp/lpm_omap3530.ko': No such file or directory
 
FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/dsp/sdmak.ko': No such file or directory
 
  done
 
Loading [g_cdc]
 
FATAL: Could not open '/lib/modules/2.6.29-omap1/kernel/drivers/usb/gadget/g_cdc.ko': No such file or directory
 
Starting web server: apache2.
 
Starting GNOME Display Manager gdm
 
Starting GPE display manager: gpe-dm
 
[ 1486.575927] OMAPFB: Closing fb with plane index 0
 
 
.-------.
 
|      |                  .-.
 
|  |  |-----.-----.-----.| |  .----..-----.-----.
 
|      |    | __  |  ---'| '--.|  .-'|    |    |
 
|  |  |  |  |    |---  ||  --'|  |  |  '  | | | |
 
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
 
                -'  |
 
                '---'
 
 
The Angstrom Distribution beagleboar ttyS2
 
 
Angstrom 2009.X-test-20100104 beagleboar ttyS2
 
</pre>
 
|
 
|-
 
| 2-4
 
| 2-21
 
| Hello World, Embedded Style
 
| <pre>
 
#include <stdio.h>
 
 
int bss_var;        /* Uninitialized global variable */
 
 
int data_var = 1;  /* Initialized global variable */
 
 
int main(int argc, char **argv)
 
{
 
  void *stack_var;            /* Local variable on the stack */
 
 
 
  stack_var = (void *)main;  /* Don't let the compiler */
 
                              /* optimize it out */
 
 
  printf("Hello, World! Main is executing at %p\n", stack_var);
 
  printf("This address (%p) is in our stack frame\n", &stack_var);
 
 
  /* bss section contains uninitialized data */
 
  printf("This address (%p) is in our bss section\n", &bss_var);
 
 
  /* data section contains initializated data */
 
  printf("This address (%p) is in our data section\n", &data_var);
 
 
  return 0;
 
}
 
</pre>
 
|
 
|-
 
| 2-5
 
| 2-22
 
| Hello Output for Host Computer
 
| <pre>
 
Hello, World! Main is executing at 0x400524
 
This address (0x7fff6c261d58) is in our stack frame
 
This address (0x601038) is in our bss section
 
This address (0x601020) is in our data section
 
</pre>
 
| Intel Atom, Ubuntu 9.10 64-bit
 
|-
 
| 2-5
 
| 2-22
 
| Hello Output for Beagle
 
| <pre>
 
Hello, World! Main is executing at 0x8380
 
This address (0xbedddc44) is in our stack frame
 
This address (0x10670) is in our bss section
 
This address (0x10668) is in our data section
 
</pre>
 
| Beagleboard rev C3, Angstrom remote compiled
 
|-
 
|
 
|
 
|
 
| <pre>
 
U-Boot 2009.06-rc2 (Apr 13 2010 - 17:33:55)
 
 
OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz
 
OMAP3 Beagle board + LPDDR/NAND
 
 
DRAM:  256 MB
 
NAND:  256 MiB
 
In:    serial
 
Out:  serial
 
Err:  serial
 
 
 
 
Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
 
Reading boot sector
 
Loading u-boot.bin from mmc
 
 
 
U-Boot 2009.06-rc2 (Apr 13 2010 - 17:33:55)
 
 
OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz
 
OMAP3 Beagle board + LPDDR/NAND
 
DRAM:  256 MB
 
NAND:  256 MiB
 
In:    serial
 
Out:  serial
 
Err:  serial
 
Board revision C
 
Die ID #5160000300000000040323091101f01a
 
Hit any key to stop autoboot:  0
 
DB, TM and MJ -- OMAP3 beagleboard.org #
 
</pre>
 
|-
 
| 4-3
 
| 4-15
 
|
 
| <pre>
 
total 423
 
drwxr-xr-x  3 batydm students  776 2010-04-28 00:05 .
 
drwxr-xr-x 87 batydm students  2696 2010-04-28 00:05 ..
 
-rw-r--r--  1 batydm students 11124 2010-04-28 00:05 clock.c
 
-rw-r--r--  1 batydm students  8805 2010-04-28 00:05 common.c
 
-rw-r--r--  1 batydm students  4033 2010-04-28 00:05 cpu-omap.c
 
-rw-r--r--  1 batydm students  2192 2010-04-28 00:05 debug-devices.c
 
-rw-r--r--  1 batydm students  7170 2010-04-28 00:05 debug-leds.c
 
-rw-r--r--  1 batydm students 10914 2010-04-28 00:05 devices.c
 
-rw-r--r--  1 batydm students 52795 2010-04-28 00:05 dma.c
 
-rw-r--r--  1 batydm students 22660 2010-04-28 00:05 dmtimer.c
 
-rw-r--r--  1 batydm students 10055 2010-04-28 00:05 fb.c
 
-rw-r--r--  1 batydm students 61383 2010-04-28 00:05 gpio.c
 
-rw-r--r--  1 batydm students  5568 2010-04-28 00:05 i2c.c
 
drwxr-xr-x  3 batydm students    72 2010-04-28 00:05 include
 
-rw-r--r--  1 batydm students  6265 2010-04-28 00:05 io.c
 
-rw-r--r--  1 batydm students 20789 2010-04-28 00:05 iommu.c
 
-rw-r--r--  1 batydm students  9141 2010-04-28 00:05 iommu-debug.c
 
-rw-r--r--  1 batydm students  2745 2010-04-28 00:05 iopgtable.h
 
-rw-r--r--  1 batydm students 19344 2010-04-28 00:05 iovmm.c
 
-rw-r--r--  1 batydm students  4819 2010-04-28 00:05 Kconfig
 
-rw-r--r--  1 batydm students  8546 2010-04-28 00:05 mailbox.c
 
-rw-r--r--  1 batydm students  882 2010-04-28 00:05 Makefile
 
-rw-r--r--  1 batydm students 43754 2010-04-28 00:05 mcbsp.c
 
-rw-r--r--  1 batydm students  2263 2010-04-28 00:05 mux.c
 
-rw-r--r--  1 batydm students  2739 2010-04-28 00:05 ocpi.c
 
-rw-r--r--  1 batydm students 21421 2010-04-28 00:05 omap_device.c
 
-rw-r--r--  1 batydm students  7069 2010-04-28 00:05 omap-pm-noop.c
 
-rw-r--r--  1 batydm students 12878 2010-04-28 00:05 sram.c
 
-rw-r--r--  1 batydm students 18770 2010-04-28 00:05 usb.c
 
</pre>
 
|-
 
| 4-6
 
|
 
| Makefile targets
 
| <pre>
 
Cleaning targets:
 
  clean          - Remove most generated files but keep the config and
 
                    enough build support to build external modules
 
  mrproper        - Remove all generated files + config + various backup files
 
  distclean      - mrproper + remove editor backup and patch files
 
 
Configuration targets:
 
  config          - Update current config utilising a line-oriented program
 
  menuconfig      - Update current config utilising a menu based program
 
  xconfig        - Update current config utilising a QT based front-end
 
  gconfig        - Update current config utilising a GTK based front-end
 
  oldconfig      - Update current config utilising a provided .config as base
 
  localmodconfig  - Update current config disabling modules not loaded
 
  localyesconfig  - Update current config converting local mods to core
 
  silentoldconfig - Same as oldconfig, but quietly, additionally update deps
 
  randconfig      - New config with random answer to all options
 
  defconfig      - New config with default answer to all options
 
  allmodconfig    - New config selecting modules when possible
 
  allyesconfig    - New config where all options are accepted with yes
 
  allnoconfig    - New config where all options are answered with no
 
 
Other generic targets:
 
  all            - Build all targets marked with [*]
 
* vmlinux        - Build the bare kernel
 
* modules        - Build all modules
 
  modules_install - Install all modules to INSTALL_MOD_PATH (default: /)
 
  firmware_install- Install all firmware to INSTALL_FW_PATH
 
                    (default: $(INSTALL_MOD_PATH)/lib/firmware)
 
  dir/            - Build all files in dir and below
 
  dir/file.[ois]  - Build specified target only
 
  dir/file.ko    - Build module including final link
 
  modules_prepare - Set up for building external modules
 
  tags/TAGS      - Generate tags file for editors
 
  cscope          - Generate cscope index
 
  kernelrelease  - Output the release version string
 
  kernelversion  - Output the version stored in Makefile
 
  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH
 
                    (default: /home/users/batydm/omap/linux-omap-2.6/usr)
 
 
Static analysers
 
  checkstack      - Generate a list of stack hogs
 
  namespacecheck  - Name space analysis on compiled kernel
 
  versioncheck    - Sanity check on version.h usage
 
  includecheck    - Check for duplicate included header files
 
  export_report  - List the usages of all exported symbols
 
  headers_check  - Sanity check on exported headers
 
  headerdep      - Detect inclusion cycles in headers
 
 
Kernel packaging:
 
  rpm-pkg        - Build both source and binary RPM kernel packages
 
  binrpm-pkg      - Build only the binary kernel package
 
  deb-pkg        - Build the kernel as an deb package
 
  tar-pkg        - Build the kernel as an uncompressed tarball
 
  targz-pkg      - Build the kernel as a gzip compressed tarball
 
  tarbz2-pkg      - Build the kernel as a bzip2 compressed tarball
 
 
Documentation targets:
 
Linux kernel internal documentation in different formats:
 
  htmldocs        - HTML
 
  pdfdocs        - PDF
 
  psdocs          - Postscript
 
  xmldocs        - XML DocBook
 
  mandocs        - man pages
 
  installmandocs  - install man pages generated by mandocs
 
  cleandocs      - clean all generated DocBook files
 
 
Architecture specific targets (arm):
 
* zImage        - Compressed kernel image (arch/arm/boot/zImage)
 
  Image        - Uncompressed kernel image (arch/arm/boot/Image)
 
* xipImage      - XIP kernel image, if configured (arch/arm/boot/xipImage)
 
  uImage        - U-Boot wrapped zImage
 
  bootpImage    - Combined zImage and initial RAM disk
 
                  (supply initrd image via make variable INITRD=<path>)
 
  install      - Install uncompressed kernel
 
  zinstall      - Install compressed kernel
 
                  Install using (your) ~/bin/installkernel or
 
                  (distribution) /sbin/installkernel or
 
                  install to $(INSTALL_PATH) and run lilo
 
 
  acs5k_defconfig          - Build for acs5k
 
  acs5k_tiny_defconfig    - Build for acs5k_tiny
 
  afeb9260_defconfig      - Build for afeb9260
 
  am200epdkit_defconfig    - Build for am200epdkit
 
  am3517_evm_defconfig    - Build for am3517_evm
 
  ams_delta_defconfig      - Build for ams_delta
 
  ap4evb_defconfig        - Build for ap4evb
 
  assabet_defconfig        - Build for assabet
 
  at572d940hfek_defconfig  - Build for at572d940hfek
 
  at91cap9adk_defconfig    - Build for at91cap9adk
 
  at91rm9200dk_defconfig  - Build for at91rm9200dk
 
  at91rm9200ek_defconfig  - Build for at91rm9200ek
 
  at91sam9260ek_defconfig  - Build for at91sam9260ek
 
  at91sam9261ek_defconfig  - Build for at91sam9261ek
 
  at91sam9263ek_defconfig  - Build for at91sam9263ek
 
  at91sam9g20ek_defconfig  - Build for at91sam9g20ek
 
  at91sam9rlek_defconfig  - Build for at91sam9rlek
 
  ateb9200_defconfig      - Build for ateb9200
 
  badge4_defconfig        - Build for badge4
 
  bcmring_defconfig        - Build for bcmring
 
  cam60_defconfig          - Build for cam60
 
  carmeva_defconfig        - Build for carmeva
 
  cerfcube_defconfig      - Build for cerfcube
 
  cm_t35_defconfig        - Build for cm_t35
 
  cm_x2xx_defconfig        - Build for cm_x2xx
 
  cm_x300_defconfig        - Build for cm_x300
 
  colibri_pxa270_defconfig - Build for colibri_pxa270
 
  colibri_pxa300_defconfig - Build for colibri_pxa300
 
  collie_defconfig        - Build for collie
 
  corgi_defconfig          - Build for corgi
 
  cpu9260_defconfig        - Build for cpu9260
 
  cpu9g20_defconfig        - Build for cpu9g20
 
  cpuat91_defconfig        - Build for cpuat91
 
  csb337_defconfig        - Build for csb337
 
  csb637_defconfig        - Build for csb637
 
  da8xx_omapl_defconfig    - Build for da8xx_omapl
 
  davinci_all_defconfig    - Build for davinci_all
 
  devkit8000_defconfig    - Build for devkit8000
 
  dove_defconfig          - Build for dove
 
  ebsa110_defconfig        - Build for ebsa110
 
  ecbat91_defconfig        - Build for ecbat91
 
  edb7211_defconfig        - Build for edb7211
 
  em_x270_defconfig        - Build for em_x270
 
  ep93xx_defconfig        - Build for ep93xx
 
  eseries_pxa_defconfig    - Build for eseries_pxa
 
  ezx_defconfig            - Build for ezx
 
  footbridge_defconfig    - Build for footbridge
 
  fortunet_defconfig      - Build for fortunet
 
  g3evm_defconfig          - Build for g3evm
 
  g4evm_defconfig          - Build for g4evm
 
  h3600_defconfig          - Build for h3600
 
  h5000_defconfig          - Build for h5000
 
  h7201_defconfig          - Build for h7201
 
  h7202_defconfig          - Build for h7202
 
  hackkit_defconfig        - Build for hackkit
 
  htcherald_defconfig      - Build for htcherald
 
  igep0020_defconfig      - Build for igep0020
 
  imote2_defconfig        - Build for imote2
 
  integrator_defconfig    - Build for integrator
 
  iop13xx_defconfig        - Build for iop13xx
 
  iop32x_defconfig        - Build for iop32x
 
  iop33x_defconfig        - Build for iop33x
 
  ixp2000_defconfig        - Build for ixp2000
 
  ixp23xx_defconfig        - Build for ixp23xx
 
  ixp4xx_defconfig        - Build for ixp4xx
 
  jornada720_defconfig    - Build for jornada720
 
  kafa_defconfig          - Build for kafa
 
  kb9202_defconfig        - Build for kb9202
 
  kirkwood_defconfig      - Build for kirkwood
 
  ks8695_defconfig        - Build for ks8695
 
  lart_defconfig          - Build for lart
 
  loki_defconfig          - Build for loki
 
  lpd270_defconfig        - Build for lpd270
 
  lpd7a400_defconfig      - Build for lpd7a400
 
  lpd7a404_defconfig      - Build for lpd7a404
 
  lubbock_defconfig        - Build for lubbock
 
  lusl7200_defconfig      - Build for lusl7200
 
  magician_defconfig      - Build for magician
 
  mainstone_defconfig      - Build for mainstone
 
  mini2440_defconfig      - Build for mini2440
 
  mmp2_defconfig          - Build for mmp2
 
  msm_defconfig            - Build for msm
 
  mv78xx0_defconfig        - Build for mv78xx0
 
  mx1_defconfig            - Build for mx1
 
  mx21_defconfig          - Build for mx21
 
  mx27_defconfig          - Build for mx27
 
  mx31pdk_defconfig        - Build for mx31pdk
 
  mx3_defconfig            - Build for mx3
 
  mx51_defconfig          - Build for mx51
 
  n770_defconfig          - Build for n770
 
  n8x0_defconfig          - Build for n8x0
 
  neocore926_defconfig    - Build for neocore926
 
  neponset_defconfig      - Build for neponset
 
  netwinder_defconfig      - Build for netwinder
 
  netx_defconfig          - Build for netx
 
  nhk8815_defconfig        - Build for nhk8815
 
  ns9xxx_defconfig        - Build for ns9xxx
 
  nuc910_defconfig        - Build for nuc910
 
  nuc950_defconfig        - Build for nuc950
 
  nuc960_defconfig        - Build for nuc960
 
  omap_2430sdp_defconfig  - Build for omap_2430sdp
 
  omap_3430sdp_defconfig  - Build for omap_3430sdp
 
  omap_3630sdp_defconfig  - Build for omap_3630sdp
 
  omap3_beagle_defconfig  - Build for omap3_beagle
 
  omap3_defconfig          - Build for omap3
 
  omap3_evm_defconfig      - Build for omap3_evm
 
  omap3_pandora_defconfig  - Build for omap3_pandora
 
  omap3_touchbook_defconfig - Build for omap3_touchbook
 
  omap_4430sdp_defconfig  - Build for omap_4430sdp
 
  omap_apollon_2420_defconfig - Build for omap_apollon_2420
 
  omap_generic_1510_defconfig - Build for omap_generic_1510
 
  omap_generic_1610_defconfig - Build for omap_generic_1610
 
  omap_generic_1710_defconfig - Build for omap_generic_1710
 
  omap_generic_2420_defconfig - Build for omap_generic_2420
 
  omap_h2_1610_defconfig  - Build for omap_h2_1610
 
  omap_h4_2420_defconfig  - Build for omap_h4_2420
 
  omap_innovator_1510_defconfig - Build for omap_innovator_1510
 
  omap_innovator_1610_defconfig - Build for omap_innovator_1610
 
  omap_ldp_defconfig      - Build for omap_ldp
 
  omap_osk_5912_defconfig  - Build for omap_osk_5912
 
  omap_perseus2_730_defconfig - Build for omap_perseus2_730
 
  omap_zoom2_defconfig    - Build for omap_zoom2
 
  omap_zoom3_defconfig    - Build for omap_zoom3
 
  onearm_defconfig        - Build for onearm
 
  orion5x_defconfig        - Build for orion5x
 
  overo_defconfig          - Build for overo
 
  palmte_defconfig        - Build for palmte
 
  palmtt_defconfig        - Build for palmtt
 
  palmz71_defconfig        - Build for palmz71
 
  palmz72_defconfig        - Build for palmz72
 
  pcm027_defconfig        - Build for pcm027
 
  picotux200_defconfig    - Build for picotux200
 
  pleb_defconfig          - Build for pleb
 
  pnx4008_defconfig        - Build for pnx4008
 
  pxa168_defconfig        - Build for pxa168
 
  pxa255-idp_defconfig    - Build for pxa255-idp
 
  pxa3xx_defconfig        - Build for pxa3xx
 
  pxa910_defconfig        - Build for pxa910
 
  qil-a9260_defconfig      - Build for qil-a9260
 
  raumfeld_defconfig      - Build for raumfeld
 
  realview_defconfig      - Build for realview
 
  realview-smp_defconfig  - Build for realview-smp
 
  rpc_defconfig            - Build for rpc
 
  rx51_defconfig          - Build for rx51
 
  s3c2410_defconfig        - Build for s3c2410
 
  s3c6400_defconfig        - Build for s3c6400
 
  s5p6440_defconfig        - Build for s5p6440
 
  s5p6442_defconfig        - Build for s5p6442
 
  s5pc100_defconfig        - Build for s5pc100
 
  s5pc110_defconfig        - Build for s5pc110
 
  s5pv210_defconfig        - Build for s5pv210
 
  sam9_l9260_defconfig    - Build for sam9_l9260
 
  shannon_defconfig        - Build for shannon
 
  shark_defconfig          - Build for shark
 
  simpad_defconfig        - Build for simpad
 
  spitz_defconfig          - Build for spitz
 
  stmp378x_defconfig      - Build for stmp378x
 
  stmp37xx_defconfig      - Build for stmp37xx
 
  sx1_defconfig            - Build for sx1
 
  tct_hammer_defconfig    - Build for tct_hammer
 
  trizeps4_defconfig      - Build for trizeps4
 
  u300_defconfig          - Build for u300
 
  u8500_defconfig          - Build for u8500
 
  usb-a9260_defconfig      - Build for usb-a9260
 
  usb-a9263_defconfig      - Build for usb-a9263
 
  versatile_defconfig      - Build for versatile
 
  viper_defconfig          - Build for viper
 
  xcep_defconfig          - Build for xcep
 
  yl9200_defconfig        - Build for yl9200
 
  zeus_defconfig          - Build for zeus
 
 
  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build
 
  make V=2  [targets] 2 => give reason for rebuild of target
 
  make O=dir [targets] Locate all output files in "dir", including .config
 
  make C=1  [targets] Check all c source with $CHECK (sparse by default)
 
  make C=2  [targets] Force check of all c source with $CHECK
 
 
Execute "make" or "make all" to build all targets marked with [*]
 
For further info see the ./README file
 
</pre>
 
|
 
|-
 
| 4-8
 
|
 
| Bit from arch/arm/Kconfig
 
| <pre>
 
#
 
# For a description of the syntax of this configuration file,
 
# see Documentation/kbuild/kconfig-language.txt.
 
#
 
 
mainmenu "Linux Kernel Configuration"
 
 
config ARM
 
        bool
 
        default y
 
        select HAVE_AOUT
 
        select HAVE_IDE
 
        select RTC_LIB
 
        select SYS_SUPPORTS_APM_EMULATION
 
        select GENERIC_ATOMIC64 if (!CPU_32v6K)
 
        select HAVE_OPROFILE
 
        select HAVE_ARCH_KGDB
 
        select HAVE_KPROBES if (!XIP_KERNEL)
 
        select HAVE_KRETPROBES if (HAVE_KPROBES)
 
        select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
 
        select HAVE_GENERIC_DMA_COHERENT
 
        select HAVE_KERNEL_GZIP
 
        select HAVE_KERNEL_LZO
 
        select HAVE_PERF_EVENTS
 
        select PERF_USE_VMALLOC
 
        help
 
          The ARM series is a line of low-power-consumption RISC chip designs
 
          licensed by ARM Ltd and targeted at embedded applications and
 
          handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
 
          manufactured, but legacy ARM-based PC hardware remains popular in
 
          Europe.  There is an ARM Linux project with a web page at
 
          <http://www.arm.linux.org.uk/>.
 
</pre>
 
|-
 
| 4-9
 
|
 
| arch/arm/mach-omap2/Kconfig
 
| <pre>
 
|
 
comment "OMAP Core Type"
 
        depends on ARCH_OMAP2
 
 
config ARCH_OMAP2420
 
        bool "OMAP2420 support"
 
        depends on ARCH_OMAP2
 
        select OMAP_DM_TIMER
 
        select ARCH_OMAP_OTG
 
 
config ARCH_OMAP2430
 
        bool "OMAP2430 support"
 
        depends on ARCH_OMAP2
 
 
config ARCH_OMAP3430
 
        bool "OMAP3430 support"
 
        depends on ARCH_OMAP3
 
        select ARCH_OMAP_OTG
 
 
config OMAP_PACKAGE_CBC
 
      bool
 
 
</pre>
 
|
 
|-
 
| 5-2
 
|
 
| piggy.S
 
| <pre>
 
.section .piggydata,#alloc
 
      .globl  input_data
 
  input_data:
 
      .incbin "arch/arm/boot/compressed/piggy.gzip"
 
      .globl  input_data_end
 
  input_data_end:
 
</pre>
 
|
 
|-
 
| 5-2
 
|
 
| piggy.gzip.S
 
| <pre>
 
        .section .piggydata,#alloc
 
        .globl  input_data
 
input_data:
 
        .incbin "arch/arm/boot/compressed/piggy.lzo"
 
        .globl  input_data_end
 
input_data_end:
 
</pre>
 
|
 
|}
 

Revision as of 22:03, 14 March 2011


I am currently a Graduate student at Rose-Hulman Institute of Technology pursuing my MECE (Masters of Electrical and Computer Enginnering) degree. My undergraduate degree was in Computer Engineering, also from Rose-Hulman. I am the Public Relations officer of the Rose-Hulman Linux Users' Group. I am working on another project using the BeagleBoard to control a walking four legged robot.

Contributions

Most of my work is with the BeagleBoard hardware. I helped with pages on PWM on the BeagleBoard and I2C on the BeagleBoard. I created the page on Interfacing with the BeagleBoard hardware. This page contains a variety of information on how to make a board to interface with the BeagleBoard, including dealing with power and level shifting.