Changes for page LEGO Mindstorms with leJOS and SCCharts
Last modified by Alexander Schulz-Rosengarten on 2023/09/11 16:17
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... ... @@ -77,8 +77,12 @@ 77 77 78 78 If you have an **NXT** **brick**, install the **leJOS NXJ** Plug-in. If you have an **EV3 brick**, install the **leJOS EV3** plugin. 79 79 80 -[[image:attach: lejos_eclipse_plugin.png]]80 +[[image:attach:Screenshot_20171016_130805.png]] 81 81 82 +**Tip:** To speed up the installation, uncheck the option "Contact all update sites during install to find required software". This will reduce the installation time from drastically (around 30 seconds instead 10 minutes). 83 + 84 +\\ 85 + 82 82 After the installation, the plugin requires a **little configuration**. Go to //Window > Preferences > leJOS NXJ// (//Window > Preferences > leJOS EV3 //respectively) and enter the base directory of your **leJOS** **installation** in the **NXJ_HOME field**. 83 83 84 84 For EV3, the plugin requires the IP address to connect to the brick (it may work without, but its safer to directly set the name. Reduces headache ). Check **Connect to named brick** and enter the **IP adress** of the brick (displayed on the brick at startup). ... ... @@ -96,7 +96,7 @@ 96 96 1. The project wizard from the leJOS plugin opens. Set the project name to //Flashlight// and click //finish//. 97 97 1. The project is created and the model file is opened in an editor (This might take a few seconds). 98 98 99 -=== Edit the model: ===103 +=== Edit the Model: === 100 100 101 101 Change the contents of the model file to the following code and save it. 102 102 ... ... @@ -121,24 +121,38 @@ 121 121 122 122 The annotations on the input and output variable are used to define which wrapper code is used to set / read them. **@Wrapper TouchSensor, S4** will set the input variable to true iff the touch sensor on the port S4 is pressed. **@Wrapper Floodlight, S1** on the output variable will turn on the red led of the light sensor that is attatched to port S1 iff the variable is true. 123 123 124 -The available wrapper code snippets are defined in the //snippets//directoryof theroject in ftl files (FreeMarker template files). The table below gives an overview of the available wrapper code snippets.128 +The available wrapper code snippets are defined in the directory //assets/snippets// in ftl files (FreeMarker template files). The table below gives an overview of the available wrapper code snippets. 125 125 126 126 **Note:** The Floodlight of the EV3 has a pretty high latency when switching between on and off. 127 127 128 -**Note: **To view ftl files with highlighting, you may want to install the //FreeMarker IDE// feature from the JBoss Tools. However, this is not necessary to work with KIELER. JBoss Tools is available in the Eclipse Market Place and via update site. The update site for EclipseLuna isupdates/stable/luna/>>url:http://download.jboss.org/jbosstools/updates/stable/luna/||shape="rect"]]132 +**Note: **To view ftl files with highlighting, you may want to install the //FreeMarker IDE// feature from the JBoss Tools. However, this is not necessary to work with KIELER. JBoss Tools is available in the Eclipse Market Place and via update site. The update site for stable releases is [[http:~~/~~/download.jboss.org/jbosstools/neon/stable/updates/ >>url:http://download.jboss.org/jbosstools/neon/stable/updates/||shape="rect"]]. Note that only the //FreeMarker IDE// feature is required (Abridged JBoss Tools > FreeMarker IDE).** 129 129 ** 130 130 131 -=== Launchtheproject: ===135 +=== Build the Project: === 132 132 133 - Withthe mouse over theSCTfile in the projectexplorer,perform//RightClick>RunAs>KiCoCompilation.//137 +The model is now ready to be compiled. Compilation is done in the background when the project is built. There are two ways to build a project: manually using //Project > Build Project//, or automatically via //Project > Build Automatically//. If the automatic build is enabled, resources are built when they are saved. 134 134 135 - A launchconfigiscreated,whichcompilesthemodel toJava code and createswrappercode from the annotationsinthe modelfile.Afterwardsthis outputiscompiledand deployed to the Mindstormsbrick, by using the launch shortcut from the leJOS plugin.If any errors occur, you can see them in the Console View.139 +Building the project will create a new folder //kieler-gen// in which all results are saved. This includes the compiled code from the model, an executable simulation for the model and wrapper code that is ready to be deployed to the Mindstorms Brick. 136 136 137 - For a deeperunderstandingoftheprojectlaunchandinitialization,take alook atthe [[wikipageforProm>>url:http://rtsys.informatik.uni-kiel.de/confluence/pages/viewpage.action?pageId=13762626||shape="rect"]].141 +The simulation is saved as JAR file in //kieler-gen/sim/bin// and can be started via //Right Click > Run as > KIELER Simulation//. Models and variables of a running simulation are displayed in the Data Pool View. 138 138 143 +[[image:attach:Screenshot_20171016_110005.png]] 144 + 145 +Besides the simulation, the finished wrapper code that can be uploaded to the Mindstorms brick is created as part of the project build. It is saved in //kieler-gen/model//. To upload it to the Mindstorms brick, use //Right Click > Run as > leJOS NXT Program//. 146 + 147 +[[image:attach:Screenshot_20171016_120554.png]] 148 + 149 +==== Excluding the Simulation from the NXT Build ==== 150 + 151 +It is necessary to exclude the simulation directory and org.json directory inside kieler-gen from the NXT project specific build via //Right Click > Build Path > Exclude//. Afterwards the project has to be build again to remove all error markers in these directories. 152 + 153 +[[image:attach:Screenshot_20171016_105821.png]] 154 + 155 +Normally the NXT project attempts to compile all Java files in the kieler-gen directory for the platform. However, the simulation that is generated is not targeted at the Mindstorms brick and has compilation errors. It is compiled separately by KIELER. 156 + 139 139 === Available Wrapper Code Snippets === 140 140 141 -There are several wrapper code snippets that can be used as annotations on input and output variables in the model file. These snippets are inserted in the main file template as part of the project launch. The available snippets are listed below.159 +There are several wrapper code snippets that can be used as annotations on input and output variables in the model file. These snippets are inserted in the main file template as part of the project build. The available snippets are listed below. 142 142 143 143 For sensors, the port has to be on of S1, S2, S3, S4. 144 144 ... ... @@ -165,7 +165,7 @@ 165 165 **Clock,** milliseconds 166 166 )))|(% colspan="1" %)(% colspan="1" %) 167 167 ((( 168 -Sets a variable to true if the time in milliseconds passed 186 +Sets a variable to true for one tick if the time in milliseconds passed since the last time it was set to true. 169 169 )))|(% colspan="1" %)(% colspan="1" %) 170 170 ((( 171 171 input ... ... @@ -205,7 +205,7 @@ 205 205 **Time** 206 206 )))|(% colspan="1" %)(% colspan="1" %) 207 207 ((( 208 -Reads the elapsed time since program start 226 +Reads the elapsed time since program start (milliseconds) 209 209 )))|(% colspan="1" %)(% colspan="1" %) 210 210 ((( 211 211 input ... ... @@ -214,7 +214,7 @@ 214 214 int 215 215 )))|(% colspan="1" %)(% colspan="1" %) 216 216 ((( 217 - 235 +\\ 218 218 )))|(% colspan="1" %)(% colspan="1" %) 219 219 ((( 220 220 timing.ftl ... ... @@ -221,7 +221,7 @@ 221 221 ))) 222 222 |(% colspan="1" %)(% colspan="1" %) 223 223 ((( 224 -**TickDuration,** targetInMilliseconds 242 +**TickLoopDuration,** targetInMilliseconds 225 225 )))|(% colspan="1" %)(% colspan="1" %) 226 226 ((( 227 227 Delays the execution until the tick loop takes at least as long as the given target duration. ... ... @@ -236,6 +236,8 @@ 236 236 )))|(% colspan="1" %)(% colspan="1" %) 237 237 ((( 238 238 Should be used on the very first input variable in the model, such that waiting is the last action in the tick loop. 257 + 258 +In case the actual tick loop duration is longer than the target duration, the modeler can provide some error handling. 239 239 )))|(% colspan="1" %)(% colspan="1" %) 240 240 ((( 241 241 timing.ftl ... ... @@ -242,6 +242,32 @@ 242 242 ))) 243 243 |(% colspan="1" %)(% colspan="1" %) 244 244 ((( 265 +**TickWakeUp** 266 +)))|(% colspan="1" %)(% colspan="1" %) 267 +((( 268 +(% class="content-wrapper" %) 269 +((( 270 +Sets the input variable to the current system time (milliseconds). The model can add to this variable to get a new value. This is the next system time the tick function will be called. 271 + 272 +In other words, the next tick function call is delayed until the wake up time has been reached. 273 + 274 +For instance the statement **nextTickWakeUp += 500** could be used to call the tick function again in 500 milliseconds, if nextTickWakeUp is an input with the corresponding annotation. 275 +))) 276 +)))|(% colspan="1" %)(% colspan="1" %) 277 +((( 278 +input 279 +)))|(% colspan="1" %)(% colspan="1" %) 280 +((( 281 +int 282 +)))|(% colspan="1" %)(% colspan="1" %) 283 +((( 284 +Should be used on the very last input variable in the model, such that waiting and settings the system time is the last action done, before the tick function call. 285 +)))|(% colspan="1" %)(% colspan="1" %) 286 +((( 287 +timing.ftl 288 +))) 289 +|(% colspan="1" %)(% colspan="1" %) 290 +((( 245 245 **Sleep** 246 246 )))|(% colspan="1" %)(% colspan="1" %) 247 247 ((( ... ... @@ -254,7 +254,7 @@ 254 254 int 255 255 )))|(% colspan="1" %)(% colspan="1" %) 256 256 ((( 257 - 303 +\\ 258 258 )))|(% colspan="1" %)(% colspan="1" %) 259 259 ((( 260 260 timing.ftl ... ... @@ -292,7 +292,7 @@ 292 292 string 293 293 )))|(% colspan="1" %)(% colspan="1" %) 294 294 ((( 295 - 341 +\\ 296 296 )))|(% colspan="1" %)(% colspan="1" %) 297 297 ((( 298 298 print.ftl ... ... @@ -330,7 +330,7 @@ 330 330 bool 331 331 )))|(% colspan="1" %)(% colspan="1" %) 332 332 ((( 333 - 379 +\\ 334 334 )))|(% colspan="1" %)(% colspan="1" %) 335 335 ((( 336 336 touch_and_buttons.ftl ... ... @@ -391,7 +391,7 @@ 391 391 bool 392 392 )))|(% colspan="1" %)(% colspan="1" %) 393 393 ((( 394 - 440 +\\ 395 395 )))|(% colspan="1" %)(% colspan="1" %) 396 396 ((( 397 397 light.ftl ... ... @@ -410,7 +410,7 @@ 410 410 bool 411 411 )))|(% colspan="1" %)(% colspan="1" %) 412 412 ((( 413 - 459 +\\ 414 414 )))|(% colspan="1" %)(% colspan="1" %) 415 415 ((( 416 416 light.ftl ... ... @@ -450,7 +450,7 @@ 450 450 bool 451 451 )))|(% colspan="1" %)(% colspan="1" %) 452 452 ((( 453 - 499 +\\ 454 454 )))|(% colspan="1" %)(% colspan="1" %) 455 455 ((( 456 456 motor.ftl ... ... @@ -469,7 +469,7 @@ 469 469 int 470 470 )))|(% colspan="1" %)(% colspan="1" %) 471 471 ((( 472 - 518 +\\ 473 473 )))|(% colspan="1" %)(% colspan="1" %) 474 474 ((( 475 475 motor.ftl ... ... @@ -549,7 +549,7 @@ 549 549 int 550 550 )))|(% colspan="1" %)(% colspan="1" %) 551 551 ((( 552 - 598 +\\ 553 553 )))|(% colspan="1" %)(% colspan="1" %) 554 554 ((( 555 555 ultrasonic.ftl ... ... @@ -597,7 +597,7 @@ 597 597 gyro.ftl 598 598 ))) 599 599 600 - 646 +\\ 601 601 602 602 ---- 603 603 ... ... @@ -641,7 +641,7 @@ 641 641 Uploading to the brick does not respond 642 642 )))|(% colspan="1" %)(% colspan="1" %) 643 643 ((( 644 - 690 +\\ 645 645 )))|(% colspan="1" %)(% colspan="1" %) 646 646 ((( 647 647 You compile a file successfully and when uploading the result, the connected brick is found. Anyway the upload does not terminate and does not react. ... ... @@ -667,7 +667,7 @@ 667 667 Brick does nothing after program finished and prints "Program exit" 668 668 )))|(% colspan="1" %)(% colspan="1" %) 669 669 ((( 670 - 716 +\\ 671 671 )))|(% colspan="1" %)(% colspan="1" %) 672 672 ((( 673 673 A program was uploaded and finished without errors. Afterwards the brick prints "Program exit" but does not open the main menu. ... ... @@ -676,8 +676,6 @@ 676 676 This is normal behaviour if uploading a program in debug mode instead run mode (//Debug As// instead //Run As// in Eclipse). To get back to the main menu, press the ENTER and ESCAPE button of the brick at the same time. 677 677 ))) 678 678 679 - 725 +\\ 680 680 681 - 682 - 683 -input 727 +\\
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... ... @@ -1,1 +1,1 @@ 1 - 201539111 +37814289 - URL
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... ... @@ -1,1 +1,1 @@ 1 -https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/ 20153911/LEGO Mindstorms with leJOS and SCCharts1 +https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/37814289/LEGO Mindstorms with leJOS and SCCharts