examples/java: Port examples containing [Interesting] tag from C/C++

Signed-off-by: Petre Eftime <petre.p.eftime@intel.com> Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
2015-09-30 13:22:47 +03:00
parent 0e44dfac44
commit bda9f4d211
8 changed files with 598 additions and 0 deletions
--- a/examples/java/SpiMAX7219.java
+++ b/examples/java/SpiMAX7219.java
@@ -0,0 +1,93 @@
+/*
+ * Author: Michael Ring <mail@michael-ring.org>
+ * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ * Author: Petre Eftime <petre.p.eftime@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+import java.nio.ByteBuffer;
+import mraa.Result;
+import mraa.Spi;
+
+public class SpiMAX7219 {
+    static {
+        try {
+            System.loadLibrary("mraajava");
+        } catch (UnsatisfiedLinkError e) {
+            System.err.println(
+                    "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
+                            e);
+            System.exit(1);
+        }
+    }
+    public static void main(String argv[]) throws InterruptedException {
+        //! [Interesting]
+        Spi spi = new Spi(1);
+
+        spi.frequency(400000);
+        spi.lsbmode(false);
+
+        if(spi.bitPerWord(16) != Result.SUCCESS) {
+            System.err.println("Could not set SPI Device to 16Bit mode, exit...");
+            System.exit(1);
+        }
+
+        spi.write_word(0x0900); //Do not decode bits
+        spi.write_word(0x0a05); // Brightness of LEDs
+        spi.write_word(0x0b07); // Show all Scan Lines
+        spi.write_word(0x0c01); // Display on
+        spi.write_word(0x0f00); // Testmode off
+
+        short dataAA55[] = { 0x01aa, 0x0255, 0x03aa, 0x0455, 0x05aa, 0x0655, 0x07aa, 0x0855 };
+        ByteBuffer buf = ByteBuffer.allocate(dataAA55.length * 2);
+        for (int i = 0; i < dataAA55.length; i++)
+            buf.putShort(dataAA55[i]);
+
+        spi.write(buf.array());
+        Thread.sleep(2000);
+
+        short data55AA[] = { 0x0155, 0x02aa, 0x0355, 0x04aa, 0x0555, 0x06aa, 0x0755, 0x08aa };
+        buf = ByteBuffer.allocate(data55AA.length * 2);
+        for (int i = 0; i < data55AA.length; i++)
+            buf.putShort(data55AA[i]);
+
+        spi.write(buf.array());
+        Thread.sleep(2000);
+
+        short data[] = { 0x0100, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600, 0x0700, 0x0800 };
+        buf = ByteBuffer.allocate(data.length * 2);
+        for (int i = 0; i < data.length; i++)
+            buf.putShort(data[i]);
+
+        spi.write(buf.array());
+
+        for (int i = 1; i <= 8; i++) {
+            for (int j = 0; j < 8; j++) {
+                spi.write_word((i << 8) + (1 << j));
+                Thread.sleep(1000);
+            }
+            spi.write_word(i << 8);
+        }
+        //! [Interesting]
+    };
+}