Merge pull request #27 from ARMmbed/make_heap_size_configurable

Make nanostack heap size configurable via yotta.
ARMmbed · May 24, 2016 · 341c5a0 · 341c5a0
2 parents b1b6cbf + ca78dd9
commit 341c5a0
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diff --git a/README.md b/README.md
@@ -21,6 +21,7 @@ This module supports static configuration via [yotta configuration](#http://yott
 
 ```
   "mbed-mesh-api": {
+    "heap_size": 32500,
     "thread": {
       "pskd": "\"Secret password\"",
       "device_type": "MESH_DEVICE_TYPE_THREAD_ROUTER",
@@ -42,6 +43,12 @@ This module supports static configuration via [yotta configuration](#http://yott
   }
 ```
 
+Configurable parameters in section: mbed-mesh-api
+
+| Parameter name  | Value         | Description |
+| --------------- | ------------- | ----------- |
+| heap_size       | number [0-0xfffe] | Nanostack internal heap size |
+
 Configurable parameters in section: mbed-mesh-api/thread
 
 | Parameter name  | Value         | Description |

diff --git a/source/mesh_system.c b/source/mesh_system.c
@@ -32,7 +32,11 @@
 #define TRACE_GROUP  "m6-mesh-system"
 
 /* Heap for NanoStack */
+#ifdef YOTTA_CFG_MBED_MESH_API_HEAP_SIZE
+#define MESH_HEAP_SIZE YOTTA_CFG_MBED_MESH_API_HEAP_SIZE
+#else
 #define MESH_HEAP_SIZE 32500
+#endif
 static uint8_t app_stack_heap[MESH_HEAP_SIZE + 1];
 static bool mesh_initialized = false;