Gumstix User Wiki - User contributions [en]

AudioIn

2010-11-11T03:20:48Z

Gaoerer:

Some Overo expansion boards provide a standard Audio Out and an Audio Line-in. Without a pre-amplifier, plugging a microphone into this Line-In port just won't work.

To use a microphone with the Overo, connect a microphone to the Mic-in lines available on the Overo connectors (and broken out on the pin headers of some boards). In addition, you need to be using a kernel that is more recent that 25 Sept. 2010 (see [http://www.sakoman.com/feeds/omap3/glibc/images/overo/ here] for recent pre-built images.

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== Capture Interface Settings ==
The audio Line-in uses the 'Analog Right AUXR' and the 'Analog Left AUXL' lines; the Mic-in uses the 'Analog Left Main Mic' and the 'Analog Right Sub Mic' lines. Use ''amixer'' or ''alsamixer'' to select the correct capture interface for your application.

Currently, Line-in is selected as the default capture interface. You could switch to the Mic-in interface like this:
<code>
$ amixer -c 0 sset 'Analog Right AUXR' nocap
$ amixer -c 0 sset 'Analog Left AUXL' nocap
$ amixer -c 0 sset 'Analog Left Main Mic' cap
$ amixer -c 0 sset 'Analog Right Sub Mic' cap
</code>

Projects - 2007

2010-11-11T03:19:33Z

Gaoerer:

See [http://www.gumstix.net/wiki/index.php?title=Category:Projects_-Research_and_Education customer projects listed here].
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On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

Supported hardware

2010-11-11T03:18:54Z

Gaoerer: /* Partially Supported Hardware: */

Please contribute your knowledge to the gumstix community!

==Supported Hardware:==

===Universal Serial Bus (USB) Devices===

*USB Hubs
*USB Mice
*USB Keyboards
*USB Mass Storage devices, i.e., USB floppy drives and USB memory stick controllers
*USB Generic Human Interface Devices

'''todo:''' webcams, bluetooth/wlan/ethernet adapters, usb audio, usb modems, usb printer

===CompactFlash I/O Devices===

*D-Link DCF-660W Wireless CF Type I Card

==Partially Supported Hardware:==

.
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On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

==Unsupported Hardware:==

.
[[Category:Literature]]

Eclipse from Box to Debug

2010-11-11T03:18:39Z

Gaoerer: /* Setting up Minicom */

This page is meant to serve as a quickstart guide that takes you from opening an Overo + Expansion out of the Box up to Remote Debugging with Eclipse on Ubuntu.

== Setting up Minicom ==
# sudo apt-get install minicom
# sudo minicom -s
# [Serial port setup] -> A - Serial Device -> /dev/ttyUSB0 -> [enter]
# [Serial port setup] -> F - Hardware Flow Control -> NO -> [enter]
# [Modem and dialing] -> A - Init String -> [empty] -> [enter]
# [Modem and dialing] -> B - Reset String -> [empty] -> [enter]
# [Modem and dialing] -> K - Hang-up String -> [empty] -> [enter]
# [Save as dfl]
# [Exit from Minicom]
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On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

== Power & Boot ==
# Plug the gumstix into the expansion board
# Plug the expansion board into your ethernet router / switch / whatever
# Plug in the micro-SD
# Plug a mini-usb plug (as you would use with a camera) into the mini-usb port labeled console
# sudo minicom -o # disables modem and dialing settings
# Plug in the 5v power supply
# Watch the system boot

== OpenEmbedded [OE] Toolchain on Ubuntu ==
[http://www.gumstix.net/Setup-and-Programming/view/Overo-Setup-and-Programming/Setting-up-a-build-environment/111.html Official (and Thorough) Documentation]

sudo apt-get install git-core
cd
mkdir -p ~/overo-oe/user.collection
cd ~/overo-oe
git clone git://gitorious.org/gumstix-oe/mainline.git org.openembedded.dev
cd org.openembedded.dev
git checkout --track -b overo origin/overo
cd ~/overo-oe
git clone git://git.openembedded.net/bitbake bitbake # just try this again if it hangs up
cd bitbake
git checkout 1.8.18
cd ~/overo-oe
cp -r org.openembedded.dev/contrib/gumstix/build .
cp ~/.bashrc ~/bashrc.bak
cat ~/overo-oe/build/profile >> ~/.bashrc
source ~/overo-oe/build/profile

The important part:
bitbake gdb-cross

== Gumstix Setup ==
From the previous step your Gumstix should have started configuring itself and hopefully is done, leaving you at the login prompt
root
passwd #(change your password)
ifconfig # configure as necessary. I assume that your IP address is 192.168.1.150
opkg install gdbserver

== Hello World! ==
This is all taking place on the Ubuntu system (192.18.1.100)

=== hello.c ===
mkdir ~/overo-oe/Code/
cd ~/overo-oe/Code/
vim hello.c

#include <cstdio>

int main(int argc, char ** argv) {
printf("Hello World!\n");
}

=== Makefile ===
vim Makefile

CGTOOLS = ~/overo-oe/tmp/cross/armv7a

# Compiler and Linker flags
C_FLAGS += -Wall -g
CPP_FLAGS += -Iinclude
LD_FLAGS += -g -lm

# compiler
CC = $(CGTOOLS)/bin/arm-angstrom-linux-gnueabi-g++ $(C_FLAGS) $(CPP_FLAGS) -c
LINK = $(CGTOOLS)/bin/arm-angstrom-linux-gnueabi-g++ $(LD_FLAGS)
STRIP = $(CGTOOLS)/bin/arm-angstrom-linux-gnueabi-strip

.PHONY: all clean
all: clean hello
clean:
rm hello *.o -rf
hello: hello.o
$(LINK) -o hello hello.o
cp hello hello.debug
$(STRIP) hello
hello.o: hello.c
$(CC) -o hello.o hello.c

=== Compile ===
Now we'll compile the program with the debug symbols, strip the symbols, and copy it to the gumstix (192.168.1.150)

make
cp ./hello ./hello.debug
~/overo-oe/tmp/cross/armv7a/bin/arm-angstrom-linux-gnueabi-strip ./hello

./hello # fails because it can't run on your architecture
ssh-copy-id root@192.168.1.150
scp ./hello root@192.168.1.150:/hello #
ssh root@192.168.1.150 "/hello" # succeeds
ssh root@192.168.1.150 "gdbserver 192.168.1.100:43276 /hello" # starts remote gdb
# use ctrl-z and then bg 1 to background this process, or run it from another ssh session
~/overo-oe/tmp/cross/armv7a/bin/arm-angstrom-linux-gnueabi-gdb --symbols ./hello.debug
target remote 192.168.1.150:43276
continue

=== Debug ===
Now we can introduce a bug and test again
mkdir ~/overo-oe/Code/
cd ~/overo-oe/Code/
vim hello.c

#include <cstdio>

int main(int argc, char ** argv) {
printf("Hello World!\n");
char * h;
delete h;
delete h;
}

== Eclipse ==
We explore how to use eclipse.

I'm currently grokking through
http://old.nabble.com/Solution:-Using-Eclipse-CDT-for-Gusmtix-development-tt18251552.html#a18251552
and
http://krupets.com/index.php?option=com_content&view=article&id=18&Itemid=20

=== Plugins ===
Update sites and plugins

=== Configuration ===
Navigating through menus

=== Remote Deployment Debugging ===
Having it somehow all come together to this culminating point

[[Category:How_to_-_eclipse]]

Projects - 2007 audio

2010-11-11T03:18:04Z

Gaoerer:

===Audio===
====PersonalSoundtrack: Greg Elliott====
<strong>Location: University of California, Irvine: Irvine, CA</strong>

PersonalSoundtrack, a tiny wearable computer, detects your walking or running speed and plays songs from your music library that match your pace. Song speed is adjusted in real-time to match subtle variations in your gait, while larger, deliberate pace changes cause the device to change songs. You simply put it on and begin moving; that's it.

Most computational devices require the user to adapt to the machine. PersonalSoundtrack offers, instead, a symbiotic relationship: both human and machine actively adapt to each other in real-time. The 'interface' is one's natural gait. There is no optimal or pre-defined experience, encouraging meandering, wasting time, and loitering. On this site in the lowest consumption 60 USD
[http://www.ck-wholeslae.com calvin klein] Underwear Known as the world's finest designer underwear, Calvin Klein Underwear was formed in 1982 and would forever alter the way the world viewed-and bought - Men's Calvin klein underwear.
On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

This project has been demonstrated at several shows and featured in several magazines.

*Website - [http://ace.uci.edu/~gelliott/personalsoundtrack PersonalSoundtrack]
*Contact - gelliott followed by an at sign then uci dot edu

====PublicSoundtrack: Greg Elliott====
<strong>Location: University of California, Irvine: Irvine, CA</strong>

*Website - [http://ace.uci.edu/~gelliott/publicsoundtrack PublicSoundtrack]
*Contact - gelliott followed by an at sign then uci dot edu

====Tunestix====
Project, open to all to contribute to, working towards a framework making it easier for people to construct their own portable music player using a gumstix computer as the base. At present only mp3s can be played off a CF card however many additions planned such as voice synthesis using flite of Wikipedia and the use of CF Wireless Card to stream iTunes shares.

* Website: [http://www.srcf.ucam.org/~jac208/dokuwiki-2006-11-06/doku.php Tunestix]
* Contact: James Coxon <jac208@cam.ac.uk>

Overo Tobi Ethernet

2010-11-11T03:17:17Z

Gaoerer:

[[Category:How_to_-_ethernet]]
Some Overo boards do not properly bring up the eth0 wired Ethernet interface when booting up with the Tobi expansion board. The result is that the Overo will not have a working wired Ethernet connection after booting, even though you may have eth0 properly configured in ''/etc/network/interfaces''. The problem appears to be caused by a version mismatch between the ''dhclient'' and ''ifupdown'' packages on the Overo images.
On this site in the lowest consumption 60 USD
[http://www.ck-wholeslae.com calvin klein] Underwear Known as the world's finest designer underwear, Calvin Klein Underwear was formed in 1982 and would forever alter the way the world viewed-and bought - Men's Calvin klein underwear.
On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

=Software=

Official Overo [http://www.gumstix.net/Setup-and-Programming/view/Overo-Setup-and-Programming/Downloading-pre-built-images/111.html pre-built Linux images] or [http://www.sakoman.com/feeds/omap3/glibc/images/overo/ developer images] have support for wired Ethernet networking and DHCP.

==Configuring eth0==

Edit ''/etc/network/interfaces'' to enable eth0:

auto eth0
iface eth0 inet dhcp

The above configuration should already be there, you would just have to uncomment it.

==Boot Messages==

After you have eth0 configured, reboot your Overo. You should see the following messages during boot:

<pre>
Configuring network interfaces... net eth0: SMSC911x/921x identified at 0xd08cc000, IRQ: 336
eth0 no wireless extensions.

Internet Systems Consortium DHCP Client V3.1.2p1
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Usage: dhclient [-1dqrx] [-nw] [-p <port>] [-s server]
[-cf config-file] [-lf lease-file][-pf pid-file] [-e VAR=val]
[-sf script-file] [interface]

If you did not get this software from ftp.isc.org, please
get the latest from ftp.isc.org and install that before
requesting help.

If you did get this software from ftp.isc.org and have not
yet read the README, please read it before requesting help.
If you intend to request help from the dhcp-server@isc.org
mailing list, please read the section on the README about
submitting bug reports and requests for help.

Please do not under any circumstances send requests for
help directly to the authors of this software - please
send them to the appropriate mailing list as described in
the README file.

exiting.
Failed to bring up eth0.
done.
</pre>

Even though you have eth0 configured properly, ''ifup'' fails to bring up the eth0 interface.

==Apparent Version Mismatch Problem==

The above errors during boot appear to be caused by some kind of version mismatch between the ''dhclient'' and ''ifupdown'' packages installed in the Overo images.

The ''ifupdown'' package source code has a file named ''inet.defn''. Here are lines 76 through 81 from that file:

<pre>
76: up
77: [[ifconfig %iface% hw %hwaddress%]]
78: dhclient3 -pf /var/run/dhclient.%iface%.pid -lf /var/lib/dhcp3/dhclient.%iface%.leases %iface% \
79: if (execable("/sbin/dhclient3"))
80: dhclient -v -pf /var/run/dhclient.%iface%.pid -lf /var/lib/dhcp/dhclient.%iface%.leases %iface% \
81: elsif (execable("/sbin/dhclient"))
</pre>

As you can see, if ''dhclient3'' is not found on the system, then at line 80 ''dhclient'' is invoked with the -v flag. This is the problem, because the Overo image has ''/sbin/dhclient'', not ''/sbin/dhclient3''. The ''dhclient'' version on the Overo image does not support the -v flag, and this is why the error message appears during boot, and the eth0 interface does not get initialized.

===Solution===

It is possible to manually run '''dhclient''' from the command line after you log into the Overo. This should make eth0 get an IP address from DHCP. This solution is fine for development, but it is not acceptable for an embedded computer that is supposed to boot up and get on the network without supervision.

The solution is to create a symlink to trick ''ifup'':

<pre>
ln -s /sbin/dhclient3 /sbin/dhclient
</pre>

This way, the ''inet.defn'' code will see that ''dhclient3'' is present, and (via the symlink) it will call ''dhclient'' without the troublesome -v flag.

Now when you boot the Overo, you should no longer get the error messages. Instead, eth0 should successfully get an IP address via DHCP and you should have a working wired Ethernet connection.

Manufacturer's specifications

2010-11-11T03:16:26Z

Gaoerer:

==Gumstix Product Pages==

The "details" tab of each product page at www.gumstix.com provides current spec sheet downloads and links.

eg. go to this [http://www.gumstix.com/store/catalog/product_info.php?products_id=227 Overo Fire COM product page] and click on the "details" tab.

=== Overo Product line documentation ===

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On this site in the lowest consumption 60 USD
Once a utilitarian product, Men's [http://www.ck-wholeslae.com calvin klein underwear]suddenly became an object of desire. New advertising campaigns communicated the message of the updated, sexy sensibility that distinguished ck underwear from all others. A complete woMen's [http://www.ck-wholeslae.com underwear] line followed in 1983. Each season since then, the brand has delivered a new line including basics, basics in fashion colors, as well as fashion-forward, trendy [http://www.ck-wholeslae.com ck underwear] to their customers. Defined by iconic simplicity and subtle seduction, there is nothing like a Calvin Klein design.

====Texas Instruments OMAP® 35x documentation====

* [http://focus.ti.com/general/docs/gencontent.tsp?contentId=46725&contentId=36915&DCMP=OMAP_Feb27_2008&HQS=Other+OT+omap35x Texas Instruments OMAP 35x Applications Processors]

* [http://focus.ti.com/docs/prod/folders/print/omap3503.html Texas Instruments OMAP3503 Applications Processor information]

* [http://focus.ti.com/docs/prod/folders/print/omap3530.html Texas Instruments OMAP3530 Applications Processor information]

====Cortex™-A8 documentation====

* [http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344b/Chdghddd.html Cortex™-A8 Technical Reference Manual]

* [http://www.arm.com/products/CPUs/ARM_Cortex-A8.html The ARM CortexTM-A8 processor - the first applications processor based on the ARMv7 architecture]

=== Verdex Pro product line ===

====Marvell® PXA270 with XScale™ Processor documentation====

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Processor%20Developer's%20Manual%20%5b280000-002%5d.pdf PXA270 Processor Developer's Manual]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Electrical,%20Mechanical,%20and%20Thermal%20Specification%20%5b280002-005%5d.pdf PXA270 Electrical, Mechanical, and Thermal Specifications]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Specification%20Update%20%5b280071-009%5d.pdf PXA270 Specification Update]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Processor%20Optimization%20Guide%20%5b280004-002%5d.pdf PXA270 Processor Optimization Guide]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Design%20Guide%20%5b280001-002%5d.pdf PXA270 Design Guide]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Connecting%20NAND%20Flash%20%5b28014402%5d.pdf PXA270 Connecting NAND Flash]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Connecting%20to%20HD%20via%20VLIO%20%5b30842202%5d.pdf PXA270 Connecting to HD via VLIO]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Video%20Decoder%20Performance%20Optimization%20%5b28000601%5d.pdf PXA270 Video Decoder Performance Optimization]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Smart%20LCD%20Panel%20%5b30968801%5d.pdf PXA270 Smart LCD Panel]

* [http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/PXA270%20Checklist%20%5b280013-001%5d.pdf PXA270 Checklist]

==== Bluetooth: PBA31308 ====
Infineon publishes [http://www.infineon.com/cms/en/product/channel.html?channel=ff80808112ab681d0112ab6aac4105c1&showAllDocuments=true&tab=2&ipt=false&documentGroup=db3a304412b407950112b408f713001d this PBA31308 documentation] for the Infineon PBA31308 module RoHS-compliant (Class 2 Bluetooth™) used in gumstix

==== Ethernet: SMSC module====
As of the Spring 2007, Gumstix uses the SMSC LAN91C111 ethernet module for the various 92-pin and 120-pin expansion boards. The manufacturer specs for the SMSC module are [http://www.smsc.com/main/catalog/lan91c111.html posted here].

==== Antenna: Wistron antenna used for wifi and verdex Bluetooth ====
The document has been [http://pubs.gumstix.com/documents/Approvals/ posted here].

Posting of this document to a gumstix wiki page was approved in February, 2007 by Kenny Young of
W-Neweb Corporation in San Jose, California.

.
[[Category:Resources]]