Merge pull request #58 from Autohome2/new_master

freeram calc
2016-11-21 23:15:08 +11:00 · 2016-11-21 23:15:08 +11:00 · bea6dd17bc
parent 8b551e6506 ef40a58716
commit bea6dd17bc
1 changed files with 13 additions and 1 deletions
--- a/utils.ino
+++ b/utils.ino
@ -17,7 +17,19 @@ int freeRam ()
  int v;
  return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval);
 #elif defined(CORE_TEENSY)
-  return 0;
+  uint32_t stackTop;
+  uint32_t heapTop;
+
+  // current position of the stack.
+  stackTop = (uint32_t) &stackTop;
+
+  // current position of heap.
+  void* hTop = malloc(1);
+  heapTop = (uint32_t) hTop;
+  free(hTop);
+
+  // The difference is the free, available ram.
+  return (uint16_t)stackTop - heapTop;
 #endif
 }