git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1820 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 7 insertions, 5 deletions

diff --git a/os/ports/GCC/ARMCMx/nvic.c b/os/ports/GCC/ARMCMx/nvic.c
index 67551ec1d..5b0dd9782 100644
--- a/os/ports/GCC/ARMCMx/nvic.c
+++ b/os/ports/GCC/ARMCMx/nvic.c
@@ -18,8 +18,9 @@
 */

 

 /**

- * @file ARMCMx/nvic.c

- * @brief Cortex-Mx NVIC support code.

+ * @file    ARMCMx/nvic.c

+ * @brief   Cortex-Mx NVIC support code.

+ *

  * @addtogroup ARMCMx_NVIC

  * @{

  */

@@ -31,7 +32,7 @@
  * @brief Sets the priority of an interrupt handler and enables it.

  *

  * @param n the interrupt number

- * @param prio the interrupt priority

+ * @param prio the interrupt priority mask

  *

  * @note The parameters are not tested for correctness.

  */

@@ -61,13 +62,14 @@ void NVICDisableVector(uint32_t n) {
  * @brief Changes the priority of a system handler.

  *

  * @param handler the system handler number

- * @param prio the system handler priority

+ * @param prio the system handler priority mask

  * @note The parameters are not tested for correctness.

  */

 void NVICSetSystemHandlerPriority(uint32_t handler, uint32_t prio) {

   unsigned sh = (handler & 3) * 8;

 

-  SCB_SHPR(handler >> 2) = (SCB_SHPR(handler >> 2) & ~(0xFF << sh)) | (prio << sh);

+  SCB_SHPR(handler >> 2) = (SCB_SHPR(handler >> 2) &

+                           ~(0xFF << sh)) | (prio << sh);

 }

 

 /** @} */