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| Compliling Python in uClinux-dist |
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xinyz writes "I'm trying to compiling python2.5 in the software packet uClinux-dist-20040408, but I get the error below:
arm-elf-gcc -O2 -g -fomit-frame-pointer -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED \
-I/home/xinyz/uClinux-dist/lib/uClibc/include -I/home/xinyz/uClinux-dist/lib/libm \
-I/home/xinyz/uClinux-dist/lib/libcrypt_old -I/home/xinyz/uClinux-dist -fno-builtin -nostartfiles \
-I/home/xinyz/uClinux-dist/linux-2.4.x/include -g -O2 -Wall \
-Wstrict-prototypes -I. -DHAVE_CONFIG_H -g -O2 -Wall -Wstrict-prototypes -I./../Include -I.. \
-DHAVE_CONFIG_H -c -o object.o object.c
cc1: warning: -g with -fomit-frame-pointer may not give sensible debugging
object.c: In function `_Py_HashDouble':
object.c:566: incompatible types in assignment
object.c:544: warning: `plong' might be used uninitialized in this function
I'm using a board with CPU S3C2510, whose core is arm940t. The cross compliler is arm-elf-gcc 2.95.3. I choose the uclibc in the menuconfig. My uclinux is 2.4, which is provided by samsung and is called linux2510.
Does anyone know this question?
xinyz
2009.6.16"
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| Freescale 5329 And uClinux (with LTIB) |
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| Open Source smart camera uses uCLinux |
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Stephan Moser writes "The leanxcam is an Analog Devices DSP smart camera (ADSB-BF537) aimed at industrial computer vision applications and hobby/student projects. The entire camera - hardware as well as software - is open source.
It features a 752x480 pixel CMOS sensor, 64MB of SDRAM and 4MB of flash, Ethernet and div. IOs.
The camera runs a uClinux and comes with an image processing framework. Further details are available under http://www.scs-vision.ch/en/leanxcam/index.html or www.leanxcam.ch.
The camera won the 2008 Vision Award."
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rgetz writes "Analog Devices has set up a survey in an attempt to determine how people use their (or other) processors. If you have 5-8 minutes, please fill it out, telling them how your experience with processors running uClinux (and other open source applications) has been (good or bad).
http://www.zoomerang.com/Survey/survey.zgi?p=WEB22 96CKJ5YNP
Thanks for taking the time to complete the survey.
Results will be shared when (a) we get enough people responding or (b) a few weeks goes by."
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| vfork with child and parent commication? |
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Frank writes "Hi ,
I tried to replace fork with vfork inside a program. I found the program is hung in child process . the "read()" inside (send_receive function call)child process is blocking the program.
I am kind of new to uClinux or linux. please correct me if I stated something wrong.
I guess the reason:
- vfork is always to start a child process
- we can't execute parent process until child process has done.
- read() inside the child process is blocking call and waiting for parent but parent is waiting child to exit. there is a deadlock???
my question is :
How to resolve this problem?
regards
Frank"
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| Serial Communication Problem with Wildfire using uClinux |
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Anonymous Brave Man writes "Hi,
I am using a Wildfire board which has Coldfire MCF5282 controller and uses uclinux v. 2.95.3.
I tried to configure it for serial communication using following settings:
9600 baud rate,7 bits data,even parity,1 stop bit and no flow control.
Every other setting works fine except the 7 data bits setting.
I am using struct termios for these settings.
And defining 7 databits using: c_cflag |= CS7;
I have included a code snippet below that I used for checking 7 bits.
And the code returns true for the if condition which doesn't make sense.The code works fine for parity setting but not for databits settings.
What could be the reasons for this problem?"
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| Distributed Data Solution |
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philwil writes "I have been asked many times over the last 10 Years for details on a "Simple" Web interface.
CGI based web pages are pretty much standard but how does the small system provide this information. You don't want to install Perl, SQL or PHP.
I have given small pieces of an answer away in my training classes over the last 10 years but I have not, until now, managed to put anything close to complete working system together.
I have helped put massive control and data systems together when working with Large Industrial Control Systems, but how do we make it all work with a resource starved embedded system.
It time for SSDS - Small System Data Server"
Read on for more info about this new product.
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| How to get uClinux to display different characters ? |
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yrs7 writes "I use a FrameBuffer Console to display all 256 characters. However, it won't display the right chars after the first 127 chars. The console use the same symbol to replace the right chars from the 128th to 255th char. Anyone has an idea how to get uClinux to recognize different char sets? Thank you!"
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malav writes "Does any body know about a course or training on Embedded Linux in the US ? Thanks in advance."
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| SYSGO celebrates 10th anniversary of ELinOS™ |
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Jacques Brygier writes "Embedded World - Nuremberg, March 3, 2009
SYSGO, leading supplier of software solutions for the world’s most demanding safety and security applications, announces the release of ELinOS 5.0, the most widely used embedded Linux commercial product in Europe for 10 years. This new major version of Industrial Grade Linux brings to Linux developers a large range of new functionality and improvements such as a new version of the Eclipse™-based IDE CODEO, new kernel 2.6.27 support, more than 2000 precompiled applications and libraries, and the just released support of Adobe Flash Lite."
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