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Java vs digital i/o card (CIO-PDISO8) from Omega UK

Hi Experts,

I installed a digital i/o card (CIO-PDISO8) in my company's PC which I use to do the signal communication with machines.

Currently my Visual Basic base firmware is using "vbInp" (to read port from address &H301) & "vbOut" (to write port from address &H300) public methods provided by windows driver "win95io.dll".

I am going to develope a pure java based tools to do the same communication with CIO-PDISO8 but currently the vendor has no driver/api for java?

Does anybody can help on this.

P/S: You can find the device info as at http://www.omega.com/pptst/CIO-PDISO8.html

Thanks,
jiada
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jiada
Asked:
jiada
1 Solution
 
pellepCommented:
Hi,

Sounds like you're going to have to use JNI. JNI is the method by which JAVA interfaces into platform-specific code. Basically, you write a .dll to wrap the win95io.dll where you expose the proper functions to the JVM using the JNI spec. Look at

http://java.sun.com/products/jdk/1.2/docs/guide/jni/spec/jniTOC.doc.html

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jiadaAuthor Commented:
I am looking for a straight forward PURE java solution to access the I/O addressing for reading/writing without any windows component such as dll.

Anyway, thanks for your time. Sorry for the late reply.
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pellepCommented:
well, there is no pure JAVA sollution to it. JAVA was designed so that hardware would not be an issue, hence direct hardware control (or in this case, access to the I/O bus) is not possible with JAVA. The way to make such services available to JAVA is to create a native interface (JNI). Now, there may be someone out there who has already created a native implementation to do what you require, but i know of none such. since this question is pretty old, i suggest you delete it and post a new one and maybe someone else here can help you out.
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Venci75Commented:
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
Answered by: pellep
Please leave any comments here within the next seven days.
 
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
 
Venci75
EE Cleanup Volunteer
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Computer101Commented:
A request for deletion has been made.  If no response or you feel this is in error, comment.  If no objection, I will delete in three days.

Computer101
E-E Admin
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Venci75Commented:
I really think that pellep answered this question.
In the worse case the question should be PAQ'd and proints removed.
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moduloCommented:
Finalized as proposed

modulo

Community Support Moderator
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