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

os/hal/ports/STM32/LLD/TIMv1/st_lld.c

@@ -205,7 +205,7 @@ void st_lld_init(void) {
                   SysTick_CTRL_TICKINT_Msk;
 
   /* IRQ enabled.*/
-  nvicSetSystemHandlerPriority(SysTick_IRQn, STM32_ST_IRQ_PRIORITY);
+  nvicSetSystemHandlerPriority(HANDLER_SYSTICK, STM32_ST_IRQ_PRIORITY);
 #endif /* OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC */
 }
 

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);
+}
+
 /** @} */

os/hal/ports/common/ARMCMx/nvic.h

@@ -29,6 +29,24 @@
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
+/**
+ * @name System vectors numbers
+ * @{
+ */
+#define HANDLER_MEM_MANAGE      0       /**< MEM MANAGE vector id.          */
+#define HANDLER_BUS_FAULT       1       /**< BUS FAULT vector id.           */
+#define HANDLER_USAGE_FAULT     2       /**< USAGE FAULT vector id.         */
+#define HANDLER_RESERVED_3      3
+#define HANDLER_RESERVED_4      4
+#define HANDLER_RESERVED_5      5
+#define HANDLER_RESERVED_6      6
+#define HANDLER_SVCALL          7       /**< SVCALL vector id.              */
+#define HANDLER_DEBUG_MONITOR   8       /**< DEBUG MONITOR vector id.       */
+#define HANDLER_RESERVED_9      9
+#define HANDLER_PENDSV          10      /**< PENDSV vector id.              */
+#define HANDLER_SYSTICK         11      /**< SYS TCK vector id.             */
+/** @} */
+
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
@@ -59,6 +77,7 @@ extern "C" {
 #endif
   void nvicEnableVector(uint32_t n, uint32_t prio);
   void nvicDisableVector(uint32_t n);
+  void nvicSetSystemHandlerPriority(uint32_t handler, uint32_t prio);
 #ifdef __cplusplus
 }
 #endif