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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-04-22 14:05:22 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-04-22 14:05:22 +0000 |
| commit | 1b12b909635477ebe6ff2b273cfbcd7247473740 (patch) | |
| tree | a09bafea0a53e7c63f26cec497a6f1efb4b1c4cd /os/ports/RVCT/ARMCMx | |
| parent | f0152ab13b753d4e0ebfacc9afa7c574e5c6979a (diff) | |
| download | ChibiOS-1b12b909635477ebe6ff2b273cfbcd7247473740.tar.gz ChibiOS-1b12b909635477ebe6ff2b273cfbcd7247473740.tar.bz2 ChibiOS-1b12b909635477ebe6ff2b273cfbcd7247473740.zip | |
PRIGROUP setting is now configurable.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4121 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/ports/RVCT/ARMCMx')
| -rw-r--r-- | os/ports/RVCT/ARMCMx/chcore_v7m.c | 2 | ||||
| -rw-r--r-- | os/ports/RVCT/ARMCMx/chcore_v7m.h | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/os/ports/RVCT/ARMCMx/chcore_v7m.c b/os/ports/RVCT/ARMCMx/chcore_v7m.c index 90dcbf32e..fb11547c6 100644 --- a/os/ports/RVCT/ARMCMx/chcore_v7m.c +++ b/os/ports/RVCT/ARMCMx/chcore_v7m.c @@ -114,7 +114,7 @@ void _port_init(void) { /* Initialization of the vector table and priority related settings.*/
SCB_VTOR = CORTEX_VTOR_INIT;
- SCB_AIRCR = AIRCR_VECTKEY | AIRCR_PRIGROUP(0);
+ SCB_AIRCR = AIRCR_VECTKEY | AIRCR_PRIGROUP(CORTEX_PRIGROUP_INIT);
#if CORTEX_USE_FPU
{
diff --git a/os/ports/RVCT/ARMCMx/chcore_v7m.h b/os/ports/RVCT/ARMCMx/chcore_v7m.h index 98bbb6358..c31bbcffe 100644 --- a/os/ports/RVCT/ARMCMx/chcore_v7m.h +++ b/os/ports/RVCT/ARMCMx/chcore_v7m.h @@ -132,6 +132,15 @@ #define CORTEX_VTOR_INIT 0x00000000
#endif
+/**
+ * @brief NVIC PRIGROUP initialization expression.
+ * @details The default assigns all available priority bits as preemption
+ * priority with no sub-priority.
+ */
+#if !defined(CORTEX_PRIGROUP_INIT) || defined(__DOXYGEN__)
+#define CORTEX_PRIGROUP_INIT (7 - CORTEX_PRIORITY_BITS)
+#endif
+
/*===========================================================================*/
/* Port derived parameters. */
/*===========================================================================*/
|