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Managing midlets? | Telit Cinterion IoT Developer Community

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micha's picture
micha

June 5, 2014 - 7:09pm, 6564 views

Hi, I'm looking for information about how to manage midlets. Q1: How can I read and write midlets in Windows Explorer in Module Disk (A:). I cannot see any *.jar midlet files listed although I can see that two are installed by issuing: AT^SJAM=4 ^SJAM: "http://192.168.244.2:50643/Test1.jad","Test1","Vendor","1.0",0,3080,0 ^SJAM: "a:/JRC-1.50.9.jad","Java Remote Control MIDlet Suite","Cinterion","1.50.9",1,669007,0 Q2: How can I delete the Test1.jad midlet above? I tried AT^SJAM=3,"http://192.168.244.2:50643/Test1.jad" but it resulted in an error. What is its corresponding path? Q3: If user autostart is enabled (^SCFG: "Userware/Autostart","1") does this mean that ALL available midlets in the EHS6 flash are automatically started? Q4: links to any sources of information about inter-midlet communications (examples?) Thanks for any help with the above, Micha
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Jędrzej Gemalto Moderator's picture
Jędrzej Gemalto...
Jun 6 2014 - 1:04pm
Hi! Here are the answers for your questions: A1: When the MIDlet is installed with AT^SJAM=0,... it's copied to the part of flash that is accessible for the only using AT^SJAM command. When you're listing MIDlets parameters inform you where specific MIDlets were installed from. After installation you can safely remove MIDlet files from A:/ flash drive as they are running from that hidden part. A2: You have to pass userware password parameter when installing, running, stopping or removing midlets. If has not been changed pass empty string as follows: AT^SJAM=3,"http://192.168.244.2:50643/Test1.jad","" A3: Every MIDlet's autostart setting is configured separately in Java Application Descriptor. If AT^SCFG "Userware/Autostart" is enabled then all Java Midlets with active property will start automatically when the ME is powered up. You need to add following line to your jad file to get it working for your MIDlet: Oracle-MIDlet-Autostart: [0-5] Please refer to Java Userguide chapter 9.4 "Run on the Module with Autostart" for details. A4: You can use PipeConnection interface described in Java API documentation. Remember that general documentation is placed in our knowledge base: https://iot-developer.thalesgroup.com/documentation/cinterion%C2%AE-conc... Please note that some part of module's functionality is delegated to JRC MIDlet. When experimenting with MIDlet autostart remember that if you disable autostart, the JRC MIDlet will not start and module's functionality will be significantly limited. Hope my hints will help you! Regards Jedrzej