diff --git a/SDK b/SDK
index b612c6f..7440098 160000
--- a/SDK
+++ b/SDK
@@ -1 +1 @@
-Subproject commit b612c6fda97a8d16de16b80bf06fa54f15043496
+Subproject commit 7440098831b16ed0b14e97004441bcabcc3f19b2
diff --git a/app_flash.ld b/app_flash.ld
index db5a2b8..ac38a8d 100644
--- a/app_flash.ld
+++ b/app_flash.ld
@@ -1,3 +1,5 @@
 _flash_size = 0x00400000;
+_stack_size = 0x1000;
+_heap_size  = 0x1000;
 
 INCLUDE flash_xip.ld;
\ No newline at end of file