git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6667 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 14 insertions, 3 deletions

diff --git a/os/hal/ports/common/ARMCMx/nvic.c b/os/hal/ports/common/ARMCMx/nvic.c
index 20bf60035..dbd165a9f 100644
--- a/os/hal/ports/common/ARMCMx/nvic.c
+++ b/os/hal/ports/common/ARMCMx/nvic.c
@@ -50,10 +50,9 @@
 

 /**

  * @brief   Sets the priority of an interrupt handler and enables it.

- * @note    The parameters are not tested for correctness.

  *

  * @param[in] n         the interrupt number

- * @param[in] prio      the interrupt priority mask

+ * @param[in] prio      the interrupt priority

  */

 void nvicEnableVector(uint32_t n, uint32_t prio) {

 

@@ -64,7 +63,6 @@ void nvicEnableVector(uint32_t n, uint32_t prio) {
 

 /**

  * @brief   Disables an interrupt handler.

- * @note    The parameters are not tested for correctness.

  *

  * @param[in] n         the interrupt number

  */

@@ -74,4 +72,17 @@ void nvicDisableVector(uint32_t n) {
   NVIC->IP[n]        = 0;

 }

 

+/**

+ * @brief   Changes the priority of a system handler.

+ *

+ * @param[in] handler   the system handler number

+ * @param[in] prio      the system handler priority

+ */

+void nvicSetSystemHandlerPriority(uint32_t handler, uint32_t prio) {

+

+  osalDbgCheck((handler >= 4) && (handler <= 15));

+

+  SCB->SHP[handler - 4] = NVIC_PRIORITY_MASK(prio);

+}

+

 /** @} */