Now able to write more data that is needed.

Pi4J · Sep 16, 2024 · 20d71f2 · 20d71f2
1 parent 98fecbc
commit 20d71f2
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Showing 2 changed files with 14 additions and 5 deletions.
diff --git a/...ries/pi4j-library-pigpio/src/main/java/com/pi4j/library/pigpio/impl/PiGpioNativeImpl.java b/...ries/pi4j-library-pigpio/src/main/java/com/pi4j/library/pigpio/impl/PiGpioNativeImpl.java
@@ -1454,8 +1454,17 @@ public int spiWrite(int handle, byte[] data, int offset, int length) {
         Objects.checkFromIndexSize(offset, length, data.length);
         validateHandle(handle);
         // write data array to SPI bus/channel
-        int result = PIGPIO.spiWrite(handle, data, offset, length);
-        logger.trace("[SPI::WRITE] <- HANDLE={}; SUCCESS={}", handle, (result>=0));
+        int result = 0;
+        byte[] someData = Arrays.copyOfRange(data, offset, length);
+        int chunksize = 4096;
+        int start = 0;
+        while (start < someData.length) {
+            int end = Math.min(someData.length, start + chunksize);
+            byte[] chunk = Arrays.copyOfRange(someData, start, end);
+            result += PIGPIO.spiWrite(handle, chunk, 0, chunk.length );
+            logger.trace("[SPI::WRITE] <- HANDLE={}; SUCCESS={}", handle, (result>=0));
+            start += chunksize;
+        }
         validateResult(result, false);
         return result;
     }

diff --git a/pom.xml b/pom.xml
@@ -274,10 +274,10 @@
         <maven-antrun-plugin.version>3.1.0</maven-antrun-plugin.version>
         <maven-assembly-plugin.version>3.3.0</maven-assembly-plugin.version>
         <maven-bundle-plugin.version>5.1.2</maven-bundle-plugin.version>
-        <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
+        <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
         <maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>
         <maven-gpg-plugin.version>3.2.1</maven-gpg-plugin.version>
-        <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
+        <maven-jar-plugin.version>3.4.2</maven-jar-plugin.version>
         <maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
         <maven-release-plugin.version>3.0.0-M4</maven-release-plugin.version>
         <maven-resource-plugin.version>3.2.0</maven-resource-plugin.version>
@@ -668,7 +668,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-enforcer-plugin</artifactId>
-                    <version>3.0.0-M2</version>
+                    <version>3.5.0</version>
                 </plugin>
 
                 <!-- Deploy to Maven plugin -->