#54 Define complete set of access permissions for MPU port

[Anonymous]

Cortex-M3 MPU, memory regions.
Not all access permissions combinations can be achieved from defined macros in MPU port. For example, I have to define additionally 0x2 value (priveleged read/write and unpriveleged read-only).

[Freddie Chopin]

A small patch as my proposal:

Index: portmacro.h

--- portmacro.h (revision 1751)
+++ portmacro.h (working copy)
@@ -104,6 +104,8 @@
#define portUSING_MPU_WRAPPERS 1
#define portPRIVILEGE_BIT ( 0x80000000UL )

+#define portMPU_REGION_NO_ACCESS ( 0x00UL << 24UL )
+#define portMPU_REGION_READ_ONLY_PRIVILEGED_READ_WRITE ( 0x02UL << 24UL )
#define portMPU_REGION_READ_WRITE ( 0x03UL << 24UL )
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 0x05UL << 24UL )
#define portMPU_REGION_READ_ONLY ( 0x06UL << 24UL )