Merge pull request #123 from FrozenFire/master

Allow running a specifically-named file from SD on startup if found.

2 files changed, 13 insertions, 2 deletions

diff --git a/Sprinter/Configuration.h b/Sprinter/Configuration.h
index df52a08..d594094 100644
--- a/Sprinter/Configuration.h
+++ b/Sprinter/Configuration.h
@@ -49,6 +49,8 @@ const bool Z_ENDSTOP_INVERT = false;
 
 // Comment out (using // at the start of the line) to disable SD support:
 #define SDSUPPORT
+// Uncomment to make Sprinter run init.g from SD on boot
+//#define SDINITFILE
 
 
 //// ADVANCED SETTINGS - to tweak parameters
diff --git a/Sprinter/Sprinter.pde b/Sprinter/Sprinter.pde
index 657efed..e3126b8 100644
--- a/Sprinter/Sprinter.pde
+++ b/Sprinter/Sprinter.pde
@@ -176,8 +176,17 @@ unsigned long stepper_inactive_time = 0;
           Serial.println("volume.init failed");
     else if (!root.openRoot(&volume)) 
           Serial.println("openRoot failed");
-    else 
-            sdactive = true;
+    else{
+          sdactive = true;
+          #ifdef SDINITFILE
+            file.close();
+            if(file.open(&root, "init.g", O_READ)){
+                sdpos = 0;
+                filesize = file.fileSize();
+                sdmode = true;
+            }
+          #endif
+    }
   #endif
   }