I need to operate my wireless mesh network on the European ISM band at 868 MHz. My interest has fallen upon Contiki-OS, and Thingsquare Mist is a Contiki port that supports some of Texas Instruments 868MHz transceivers.
Now, I have successfully finished the simulation in Instant Contiki from the starting guide, but I have trouble compiling the example codes from Thingsquare Mist.
When trying to add a mote in the simulation with firmware from
thingsquare-mist-1.0.1/platform/mist-exp5438/contiki-exp5438-main.c
I get:
$ make contiki-exp5438-main.exp5438 TARGET=exp5438
make: *** No rule to make target `contiki-exp5438-main.exp5438'
Trying to compile some of the examples states that ip64-conf.h is missing from apps/ip64/, and renaming the existing file ip64-conf-example.h to ip64-conf.h in said folder just gives me a lot of compile time errors.
Obviously I am doing some fundamentally wrong here, could someone point me in the right direction?
contiki-exp5438-main.c isn't an application, try building anything from the examples directory instead.
That said, I don't really know what I'm doing and I haven't managed to successfully simulate any Mist applications in Cooja myself, but trying to build anything from the examples directory at least gives you a valid make target
Edit: Oops I didn't read the entire question, I saw now that you already tried that as well. The other answer suggested building for mist-exp5438, but as suggested here you should use exp1101 or exp1120 instead. Except that the application doesn't fit in ROM for those targets...
Try with this command:
make contiki-exp5438-main.exp5438 TARGET=mist-exp5438
Related
My Octave crashes when I execute plot command. I found a solution in Assad Ebrahim's answer. He mentioned to switch the default toolkit to gnuplot, and change it in octave.rc file if I want to make the change permanently but I'm not clear about the permanent change in octaverc. When I open my octaverc with notepad++, it looks like this:
## System-wide startup file for Octave.
##
## This file should contain any commands that should be executed each
## time Octave starts for every user at this site.
EXEC_PATH (cstrcat (fullfile (OCTAVE_HOME, 'notepad++'), pathsep,
EXEC_PATH));
EXEC_PATH (cstrcat (fullfile (OCTAVE_HOME, 'bin'), pathsep, EXEC_PATH));
EDITOR (fullfile (OCTAVE_HOME, 'notepad++', 'notepad++.exe'));
What should I change and how?
First, the direct answer to your question is to append any command you want executed on startup to the end of the .octaverc file. So, to set a particular graphics toolkit you would add the line:
graphics_toolkit("gnuplot")
Or
graphics_toolkit("qt")
Or
graphics_toolkit("fltk")
For whichever toolkit you want.
Now, as pointed out by #Andy, if you are using Windows, it may be that you are misinterpreting a long delay for a crash. A still not entirely resolved windows bug concerns the fact that on the first plot Windows might need to create a font cache file. This can take a long time. Once this is complete, most subsequent plots will be much faster. Some info can be found about it at the following bug report page:
https://savannah.gnu.org/bugs/?45458
EDIT: in the time since this answer was posted, the bug linked above has been largely resolved. Part of the installation process now updates the font-cache file. If using a zip package rather than an executable installer, there is a batch file that should be run after extracting octave to ensure that this is done. Details are available at:
http://wiki.octave.org/Octave_for_Microsoft_Windows
I work on several R projects at the same time. One of them involves a simulation with a for-loop, which I hope to speed up by using a JIT-compiler. To do so, I added to the file Rcmd_environ in my R-directory/etc the lines following this recommendation.
R_COMPILE_PKGS=TRUE
R_ENABLE_JIT=3
Now I wonder, whether it is possible, to turn this on and off via a script. This way, I wouldn't have JIT-compilation in my other projects. Any ideas?
You can load the compiler library and then set the JIT level via calling the 'enableJIT` function.
For e.g. you can do
require(compiler)
enableJIT(3)
to get full JIT compilation.
I'm trying to get package references resolved during a build, using GNAT Programming Suite (hosted on Win XP). In the Builder Results, I get errors like this one:
file "ac_configuration_s.ada" not found
Clicking on the error takes me to a line like this:
with
Ac_Configuration,
Dispense_Timer,
...
The first item (Ac_Configuration) isn't resolved, but the second item (Dispense_Time) is resolved. I have several others that do or don't resolve. All of the files in question (spec and body) are identified as source files.
When I hover my mouse over the line with the error, a popup shows up that offers this:
(Cross-references info not up to date. This is a guess.)
Ac_Configuration
local package declared at D_Ac_Config_S.Ada:85
The guess is correct, but I don't know how to use this. How do I get this to correctly build?
Update
Here is teh call to gcc
gcc -c "-gnatec=C:\Source\build\GNAT-TEMP-000001.TMP" -I- -gnatA
-x ada "-gnatem=C:\Source\build\GNAT-TEMP-000002.TMP" "C:\Source\C_Cbt_Main_B.Ada"
I don't see a reference to teh "miimal" switch.
In this case, there is no corresponding body file file D_Ac_Config_S.Ada. So the is no body file to compile separately.
When I right click on the package reference inside the with, I can goto the declaration of Ac_Configuration and every other package name that is the source of an error. So these lreferences are being resolved somehow.
By the way, I have not used ADA before, so I'm still trying to understand everything.
It looks as though you're using _s.ada as the suffix for specs, and I'm guessing _b.ada for bodies?
GNAT may have difficulty with this naming convention. It's possible, using a GNAT Project file (.gpr), to alter GNAT's default convention ({unit-name}.ads for specs, {unit-name}.adb for bodies) but the rules (see "Spec_Suffix") say "It cannot start with an underscore followed by an alphanumeric character" (I haven't tried this, but you can see that it would confuse the issue if you had a package Foo_S, for example).
LATER: It turns out that GNAT (GPL, 4.7, 4.8) is quite happy with your suffixes!
If the package Ac_Configuration is really a local package declared at line 85 of D_Ac_Config_S.Ada, then there's your problem; you can only with a library unit, which in this case would be D_Ac_Config.
with D_Ac_Config;
...
package Foo is
...
Bar : D_Ac_Config.Ac_Configuration.Baz;
I wonder whether D_Ac_Config_S.Ada (for example) actually contains multiple Ada units? (if so, compiling that file should result in a compilation error such as end of file expected, file can have only one compilation unit). GNAT doesn't support this at compile time, providing instead a utility gnatchop.
Would it be possible to just gnatchop all the source and be done with it?
Hm, I think it sounds like the compiler's got a bad set of objects/ALIs it's working with, hence the cross-reference not up to date error. (Usually the compiler's good about keeping things up to date; but you may want to check to see if the "minimal recompilation" switch is set for the project.)
Have you tried compiling just the ["owning"] file D_Ac_Config_S.Ada? (i.e. if it were a spec, go to the corresponding body and compile that.) That should force its ALI/object files to be updated.
Then try building as normal.
-- PS: you might have to clean first.
I am attempting to automate the insertion of JPEG images into Powerpoint. I have a macro done for that already, except using R would be infinitely better for my purposes.
The package R2PPT should do this, I understand. However, I cannot use it. For example, when I try to use PPT.Open, I understand I can do it two different ways by calling method = "rcom" or method = "RDCOMClient". Using the latter, R will always crash, sending an error report to windows. Using the former, it tells me I need to install statconnDCOM , before giving the error:
Error in PPT.Open(x) : attempt to apply non-function.
I cannot install statconnDCOM freely, as I wouldn't call this work non-commercial. So if there isn't a way to get around this issue, are there at least some free alternatives to R2PPT so that I can save several hours of manual work with a simple R code? If there is a way for me to use R2PPT, that would be ideal.
Thanks!
Edit:
I'm using R version 2.15 and downloaded the most recent version of R2PPT. Powerpoint is 2007.
Do you have administrative privileges on this machine?
There is an issue with package RDCOMClient. It needs permissions to write file rdcom.err in the root of drive C:. If you don't have privileges to write to c:, there is a rather cumbersome workaround:
Close R
Create "c:\temp" folder if it doesn't exist.
Locate on your hard drive file rdcomclient.dll. It usually placed in \R\library\RDCOMClient\libs\i386\ and in \R\library\RDCOMClient\libs\x64\ (you need to patch file which corresponds your Windows version - 32 bit or 64 bit). It's recommended to make backup copy of this files before patching.
Open rdcomclient.dll in text editor (Notepad++, for example -http://notepad-plus-plus.org/)
Find in file string c:\rdcom.err - it occurs only once.
Go into overwrite mode (usually by pressing "Ins" key). It is very important that new path will have the same number of characters as original one. Type C:\temp\e.rr instead of c:\rdcom.err
Save the file.
Now all should work fine.
Arguably not an answer, but have you looked at using Sweave/knitr to render your presentations in LaTeX using something like Beamer? (As discussed on slide 17 here.)
Wouldn't help any with getting JPGs into a PowerPoint, but would certainly make putting R-output (numerical or graphical) into a presentation much easier!
Edit: if you want to use knitr (which I recommend), here's another reference.
I've been working on trying to automate the complicated process of building source code on a build machine and then transferring the compiled image files over to my embedded ARMv7 device to be flashed. Each step by itself is easy to automate with standard Linux Shell Script, but when trying to do everything in one giant script things get complicated. Thus far I've been using expect-lite to do the work, which is working except now I've run into a problem. When transferring the images over I have expect-lite code that looks like the following:
$imageDestination="/the/destination"
$imageSource="/the/source/"
>sftp $userName'#'$buildMachine
>$password
>get $imageSource'/'x-load_sdcard.bin.ift $imageDestination'/'MLO
>echo "Finished"
>bye
If you know a thing or two about expect-lite, then you'll know that the above variables will be read as "Shell" variables. The problem is that as far as I know SFTP doesn't allow the use of variables. Is there a way to tell expect-lite to use the predefined variables instead of trying to use "Shell" variables? Or, is there some cleaver way to get around this limitation without removing the variables?
All help is greatly appreciated.
Dreligor,
There is no scope issue. Expect-lite variables are all of global scope (as stated in the documentation). I think the problem is that you are using quotes which is making things more difficult. You should try:
$imageDestination=/the/destination
$imageSource=/the/source
>sftp $userName'#'$buildMachine
>$password
>get $imageSource/x-load_sdcard.bin.ift $imageDestination/MLO
>echo "Finished"
>bye
Craig Miller - author and maintainer of expect-lite
After some experimentation it turns out that this is a scope issue. The solution is to simply move the variable declarations down. They need to be declared after the script has connected to the remote machine via sftp. The fixed code is as follows:
>sftp $userName'#'$buildMachine
>$password
$imageDestination="/the/destination"
$imageSource="/the/source/"
>get $imageSource'/'x-load_sdcard.bin.ift $imageDestination'/'MLO
>echo "Finished"
>bye
Hopefully this will help others.