hostpc like send data to nios II via jtag (nios2-terminal.exe, jtag_atlantis.dll)

You're probably best off looking at the matlab documentation for how to load java objects into matlab. I'm not an expert, but I think there may be some tinkering with class-paths required to get the jars to load. If the matlab JVM uses the manifest files in the jars (open them with zip to take a look) then just loading matlabapi should get things working.

Once you have it loading you'll need to use the appropriate matlab APIs to create a matlab wrapper around a com.altera.systemconsole.matlabapi.SystemConsoleLink object. I'm not a matlab expert so I can't tell you exactly what the commands are to do that, but I have seen it done.

There are JAVA tools which display all the public APIs available on that object, and my posts above describe the interesting ones. I suggest you start with executeTcl which takes a string and returns a string.

Hi!

does anybody know how to use the matlabapi???

after days of trying - no success.

i have no problems of using other java classes in matlab.

i cant find the consturctor. i dont know how to use the methods and which methods. at the moment i use java decompiler and lock into

com.altera.systemconsole.matlabapi

com.altera.systemconsole.matlabapi.SystemConsoleLink

com.altera.systemconsole.matlabapi.MatlabMethod

com.altera.systemconsole.matlabapi.MasterLink

now i can see the methods but i have no success of creating a javaobject and can not use the classes´ methods.

anybody any suggestion???

i really need help or a link to a manual or documentation...

hi!

the following command should create an object:

----------------------------------------------

"L1 = javaObject('com.altera.systemconsole.matlabapi.SystemConsoleLink')"

----------------------------------------------

and now my error from matlab console:

----------------------------------------------

??? Error using ==> javaObject

Java exception occurred:

java.lang.NoClassDefFoundError: com/altera/service/Service

at com.altera.systemconsole.core.SystemConsoleProvider.knownProviders(SystemConsoleProvider.java:91)

at com.altera.systemconsole.core.SystemConsoleProvider.createDebugModel(SystemConsoleProvider.java:74)

at com.altera.systemconsole.core.SystemConsoleProvider.createDefault(SystemConsoleProvider.java:63)

at com.altera.systemconsole.matlabapi.SystemConsoleLink.<init>(SystemConsoleLink.java:31)

Caused by: java.lang.ClassNotFoundException: com.altera.service.Service

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at com.mathworks.jmi.CustomURLClassLoader.findClass(ClassLoaderManager.java:754)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClassInternal(Unknown Source)

... 4 more

Error in ==> test_jar at 27

L1 = javaObject('com.altera.systemconsole.matlabapi.SystemConsoleLink')

----------------------------------------------

... so i think - i have to create the class first... how???

what is the constructor???

which *.jar files do i need ???

do i also need the sopc***.jar ??

it would be nice if someone can help me!!

hi!

perhaps one of you have a suggestion or simple solution for my main-problem because its do difficult to solve the problem via matlabapi...

the only thing that i wanna do is,

to send and read x*32 bit from/to nios memory!

i wanna do this automatically(polling) or after pressing a button

from my selfcreated matlabgui via the connected usbblaster.

perhaps one of you has a solution and you can tell me how to realize it!

greets

Hi,

The root of your problems is this one:java.lang.NoClassDefFoundError: com/altera/service/Service

This indicates that java couldn't find a jar file providing this class.

When it's looking for classes java checks all the jars on the class path and load the class from the first jar file it sees it in. A class might refer to another class, in which case java will search again and load the second class from the appropriate jar.

It looks like you need to add some jars to your class path.

The matlab Java API lets you see what the class path is by running the `javaclasspath` command. If you are still stuck then please post the results of running this command.

You may be able to solve the problem yourself by adding plausible looking jars to the class path yourself. You can extend the classpath in two ways:

1. You can `edit classpath.txt` and add the full paths to the jars you need. After editing classpath.txt you will need to restart matlab - the jars should then be on the static classpath

2. You can use the command `javaaddpath('full/path/to.jar')` to add jars to the dynamic class path. You don't need to restart matlab to see changes to the dynamic class path, but any changes you make are lost on a restart so you might want to store your commands in startup.m or somewhere like that

Which jars do you need? All the jars you need should be in quartus/sopc_builder/model/lib. You could add all the jars from this directory, or you could just add the ones you need. You will certainly need com.altera.(systemconsole.*; version ; utilities ; ui.* ; tcl.interpreter ; service.jre ) .jar - I think there are a couple more needed too. You can normally tell which jar you need because it matches the missing class name in the error message.

Hope that helps, if you can't find any of the other missing classes then please post a followup.

hi!

i found this

http://www.alteraforum.com/forum/showthread.php?t=6682

(4 links)

sounds that there is no other way :( and i have to get the matlabapi work!

mhhh...

hi!

your information takes me one step further. but now - i get the following error:

-------------------------------

??? Error using ==> javaObject

Java exception occurred:

java.lang.NullPointerException

at com.altera.systemconsole.matlabapi.SystemConsoleLink.<init>(SystemConsoleLink.java:46)

at com.altera.systemconsole.matlabapi.SystemConsoleLink.<init>(SystemConsoleLink.java:31)

Error in ==> test_jar at 29

L1 = javaObject('com.altera.systemconsole.matlabapi.SystemConsoleLink')

-------------------------------

L1 should be my object. in this message i can read, that the function/class want to use something that isnt there and so i get an initialisation problem.

the board is connected and i can see the connection working by starting system-console.exe. - so i dont think that it is a connection-problem...

is com.altera.systemconsole.matlabapi.SystemConsoleLink the constructor?

i think, that i dont have to give arguments to the SystemConsoleLink(), right?

i also dont know, perhaps i have to use the MatlabMethod ? but how?

or is it an matlabapi internal class for using the matlabapi?

in my opinion i have to do the following in matlab:

L1 = javaObject('com.altera.systemconsole.matlabapi.SystemConsoleLink');

L1.onemethod(argument)

L1.onemethod(argument)

L1.onemethod(argument)

L1.closeconnection ....

delete L1 after complete transmission.

anyway - thank you for your time and the very helpful informations !!!

greets

at the moment i use the following:

com.altera.version.jar

com.altera.utilities.jar

com.altera.ui.jar

com.altera.tcl.interpreter.jar

com.altera.service.jre.jar

com.altera.systemconsole.app.jar

com.altera.systemconsole.dashboard.jar

com.altera.systemconsole.designs.jar

com.altera.systemconsole.gdbserver.jar

com.altera.systemconsole.gui.jar

com.altera.systemconsole.issp.jar

com.altera.systemconsole.jar

com.altera.systemconsole.matlabapi.jar

com.altera.systemconsole.monitor.jar

com.altera.systemconsole.nios2.dpx.jar

com.altera.systemconsole.plugin.elf.jar

com.altera.systemconsole.plugin.jtag.jar

com.altera.systemconsole.plugin.memory.jar

com.altera.systemconsole.plugin.pli.jar

com.altera.systemconsole.scripting.jar

com.altera.systemconsole.tcpchannel.jar

com.altera.systemconsole.transceivers.jar

com.altera.systemconsole.usb.jar

com.altera.tcl.ui.jar

com.altera.tools.exampledesigns.jar

com.altera.tools.sopcformats.jar

com.altera.ui.ientity.jar

i also tryed to use all *.jar from quartus/sopc_builder/model/lib

- no success.

i thought about a problem with different versions of java.

but i use the newest one (Java VM Version: Java 1.6.0_12-b04 with Sun Microsystems Inc. Java HotSpot(TM) Client VM mixed mode)

i know the the com.altera.* was generated with 1.6.0_02-b06 (Sun Microsystems Inc.) and i tryed to find it, but i think problems could only occur with older java versions.

greets

Hi out there!

in this moment - i found the following datasheet:

http://www.altera.com/literature/ds/ds01023.pdf

for me its not very funny but there on page 4 is a very very very small

"example" of using the Matlabapi - i think.

i know the command MasterRead32( ... ) from my studies of the informations, wombat gave me. i was searching many hours - and now that piece of zero information! on page 4 they tell me to visit altera.com :) very funny hohoho...

i think, someone from altera is listening to my messages and laughing with his developer friends :(

Nowhere on altera.com is any information about how do get the matlabapi work. i know its brand new - quartus2 10.1 or later - but how can i get the informations i need???

why doesn´t altera publish the information on that data sheet or give a link or something?

greets