Getting started with CAN bus - raspberry-pi

I have configured the device as said in these links
1. http://www.cowfishstudios.com/blog/canned-pi-part1
2. http://lnxpps.de/rpie/
But the problem is the terminal hangs/ seems busy after i enter this command
candump -cae can0,0:0,#FFFFFFFF
What are the configurations i need to check again?..i guess the SPI works fine (as the red LED glows).

I found the problem ,i tried to install cross compiler modules for the older version 3.10.24+ but those configurations were already installed .so i just upgraded the version and it works fine now.

Related

Debugging MBED with Eclipse

I am currently using mac OS to set up a debugger to debug Mbed OS application , I followed the instruction from https://os.mbed.com/docs/mbed-os/v5.12/tutorials/eclipse.html .
I successfully set up the local debug toolchain and I am stuck at this error for quite awhile already. I install "make" as written in the documentary using homebrew and also set the path as suggested but still getting this error
00:13:27 **** Incremental Build of configuration Default for project mbed-os-example-blinky ****
make all
Cannot run program “make”: Unknown reason
Error: Program “make” not found in PATH
PATH=[/Users/roseyv/Developer/gcc-arm-none-eabi-6-2017-q2-update/bin/arm-none-eabi-g++]
00:13:27 Build Failed. 1 errors, 0 warnings. (took 4ms)
Any idea how to resolve this issue? or if there is any other better way we can set up debugger to debug MBED os application
Your help will be greatly appreciated, Thank you in advance!
In the mean time Mbed has updated their website. The link you posted is no longer valid. My suggestion now would be to use Mbed Studio.
Unfortunately Mbed is moving away from supporting Eclipse and only supports IDE's for which you have to be logged in with your account, Mbed Studio or the online compiler.
You could build from the command line option. Next use something like a Segger j-link and Segger Ozone to debug. I found Ozone easier to setup with random code compared to embedded debugging on Eclipse. This is what you pay for.

Pydev 3.0 + Eclipse + Google App Engine Debugging not working

I've been having problems getting debugging working with this setup for the past year. Supposedly, this is fixed in the latest versions, but I just can't seem to get it to work.
I'm using Mac OSX 10.8.5, Eclipse Keplar, PyDev 3.0.0, and Google App Engine 1.8.8.
I set up a run configuration to point to dev_appserver.py, running my project. That works fine. My python version is 2.7.3, and everything works in normal mode. When I try to run in debug mode, however, the app runs, the output specifically states:
pydev debugger: starting
pydev debugger: google app engine integration enabled
But after 20 seconds, the python process terminates with this error message:
'Launching New_configuration' has encountered a problem.
Timed out after 20.0 seconds while waiting for python script to connect.
Accept timed out
Execution works during those 20 seconds, because I can hit URLs connected to my app and see an effect. Breakpoints do not work, though. Is there something I need to do to get python to 'connect'?
Also - I should note that switching back to using 'old_dev_appserver.py' fixes this problem - debugging works fine when I do this. But, this is not really a solution, because I need to use the latest socket additions in the newer releases.
Thanks for any advice.
temporary solution:
edit the pydev_app_engine_debug_startup.py file:
eclipse/plugins/org.python.pydev_${VERSION}/pysrc/pydev_app_engine_debug_startup.py
change the line that reads:
if ':' not in config.version_id:
to:
if ':' not in config.version_id or config.version_id.startswith('default:'):
Looks like this is fixed in 1.9.0. I also had to make sure to update PyDev to the latest (3.3.3 at the time of this writing).
One more thing to add, and this one really tripped me up (on MacOS) -
In Eclipse, under Run -> Run Configurations, set the Main Module to point to this location:
/usr/local/google_appengine/dev_appserver.py
NOT the symlink:
/usr/local/bin/dev_appserver.py
Well, finally I found the answer. It is a Google's bug.
It has been reported and acknowledged.
see Debug is not working with PyDev again 1.8.8!
Update: Until the bug is fixed I am using PyCharm. The pro version has 30 days trial and works with GAE. It works like, well, a charm. I may even consider switching to it from Elicpse/PyDev
But I am used to JetBrains tools with Android Studio recnetly, and WebStorm and Resharper in the past, so I know to find my way around their IDEs. Your milage may and will vary.
Since the question, a new GAE has been released 1.8.9
Running GAE 1.8.9 with PyDev3.3.3 on Windows8.
This timeout issue still occurred.
When I entered the temporary workaround changes to pydev_app_engine_debug_startup described in the earlier answer, then the browser could not connect to the app.
However, on backing out this change, not only did the 'Launching New_configuration' not appear, but the breakpoints worked.
More info on the Python Tool Support for the App Engine Development Server is here
https://docs.google.com/document/d/1CCSaRiIWCLgbD3OwmuKsRoHHDfBffbROWyVWWL0ZXN4/edit

HelloCompute: where is the reflected layer?

New to Android. I'm trying to build the HelloCompute sample code for API 17 with ADT v22.0.1 under Windows 7. I do File:New Project:Android Sample Project, and select HelloCompute. In the Package Explorer I see HelloCompute.java and mono.rs in src under com.example.android.rs.hellocompute. However, I don't see any reflected layer code under gen, and I get the error "ScriptC_mono cannot be resolved to a type". I have tried re-installing eclipse / adt, and re-installing the sample code.
Is there some manual step I need to perform to generate the reflected layer?
Thanks.
I ran into a similar problem.
I got around it by running llvm-rs-cc on mono.rs and generating the ScriptC_mono.java file. Eclipse then picks up this source and compiles everything successfully.
I do not know yet whether is there a way of telling eclipse to do it automatically.
The latest ADT does have a problem in generating RenderScript code as part of the build process, so you need to do this step manually right now (or look at other threads suggesting workarounds). Hopefully the upcoming ADT will actually fix this issue so that everything gets created automatically.
Had the same problem.
Win 7 64bit.
Eclipse 4.2.2.
Upgraded to:
SDK Tools: 22.0.5.
Platform-tools: 18.0.1.
Build-tols: 18.0.1.
Problem solved.
Renderscript compilation was broken in ADT 22.0.1. Fixed for non-Windows platforms on 22.0.4. Fixed for Windows platform on 22.0.5.

FB4Linux―debugger disconnects after a while

I am running ubuntu 12.04 64 bit, I have set up FB4Linux (FlashBuilder for Linux) and installed the »flash-installer« installer plugin via »apt-get«. I downloaded the latest version of the plugin-debugger from adobe and followed the install instructions from the included README.txt file. Running eclipse (Version: 3.7.2, Build id: I20110613-1736), creating a new as3 project works, build works, everything fine, I can start the debugger and step through the code BUT after a while the debugger just disconnects and stops. No error, no crashes, debug session just over.
Any Ideas?
.log
about:plugins:
Flash - Version: 11.2 r202
Shockwave Flash 11.2 r202
I think , this is happenning more fequently due the enhanced breakpoint listener support in eclipse.When a breakpoint is removed, it is trying to notify its "breakpoint specific" listeners, which were stored in the breakpoint. Of course, this will not work since the underlying marker has been deleted. but things will happen after removing break point. so one way to resolve this problem is to try to un-select
Window > Preferences > Java > Debug : Suspend execution on uncaught exceptions
may this will help you!!
The solution to this issue occurred as side effect after I applied the changes from the answer of this question. When I tried to set the compiler options to target version 11.2, which is actually installed on my system errors occurred because their were files missing in the sdk folder (which are the described changes) and I could only develop for version 11.1. Kind of wired but the update of the sdk made the debugger run stable.

Getting CUSP working in Eclipse

I have just installed the latest unofficial version of Cusp to go along with this tutorial on Cusp. I do exactly as it says, verbatim, and when I save my main.lisp file, I see an error on the (in-package :new-lisp1) line which says
Package NEW-LISP1 not loaded
Right click on corresponding .asd file and select
Load Package
I right-click new-lisp1.asd, select "Load Package," the red error goes away, I try compiling again, and tada--it's back!
Also, another (related?) problem is that down in the REPL, I keep seeing that I am disconnected from SBCL, and I keep trying to reconnect. Basically, the window looks like these lines repeated over and over:
Reconnecting...done.
"You are running SBCL 1.0.8.48 via Cusp 0.9.375"
Disconnected
What can I do to fix these problems? (If it is any help, I'm using Eclipse on Mac OS X)
EDIT: and I would also like to note that simply selecting "Load Package" on new-lisp1.asd generates two more "Disconnected" messages immediately...
Okay, so I'm still not sure what caused the problem, but I reinstalled Eclipse fresh and then manually added the older, official release of Cusp to Eclipse. Everything is working fine.
In addition, I tried installing the newer Cusp on Eclipse on the Leopard machines at school, and it works fine. So perhaps it is a problem with Snow Leopard or the Lion beta that I am currently using.