git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2084 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 6 insertions, 4 deletions

diff --git a/os/ports/GCC/ARMCMx/chcore_v6m.h b/os/ports/GCC/ARMCMx/chcore_v6m.h
index 0b0a41858..1a086b2bf 100644
--- a/os/ports/GCC/ARMCMx/chcore_v6m.h
+++ b/os/ports/GCC/ARMCMx/chcore_v6m.h
@@ -102,8 +102,9 @@ struct intctx {
  * @details This size depends on the idle thread implementation, usually

  *          the idle thread should take no more space than those reserved

  *          by @p INT_REQUIRED_STACK.

- * @note    In this port it is set to 4 because the idle thread does have

- *          a stack frame when compiling without optimizations.

+ * @note    In this port it is set to 8 because the idle thread does have

+ *          a stack frame when compiling without optimizations. You may

+ *          reduce this value to zero when compiling with optimizations.

  */

 #ifndef IDLE_THREAD_STACK_SIZE

 #define IDLE_THREAD_STACK_SIZE      8

@@ -116,8 +117,9 @@ struct intctx {
  *          This value can be zero on those architecture where there is a

  *          separate interrupt stack and the stack space between @p intctx and

  *          @p extctx is known to be zero.

- * @note    This port requires some extra stack space for interrupt handling

- *          representing the frame of the function @p chSchDoRescheduleI().

+ * @note    In this port it is conservatively set to 16 because the function

+ *          @p chSchDoRescheduleI() can have a stack frame, expecially with

+ *          compiler optimizations disabled.

  */

 #ifndef INT_REQUIRED_STACK

 #define INT_REQUIRED_STACK          16