STM32. GPT. Added abillity to change interval of running GPT unit on the fly.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5510 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 18 insertions, 0 deletions

diff --git a/os/hal/include/gpt.h b/os/hal/include/gpt.h
index 4a8245df5..379b90be9 100644
--- a/os/hal/include/gpt.h
+++ b/os/hal/include/gpt.h
@@ -76,6 +76,23 @@ typedef void (*gptcallback_t)(GPTDriver *gptp);
 /* Driver macros.                                                            */

 /*===========================================================================*/

 

+/**

+ * @brief   Changes the interval of GPT peripheral.

+ * @details This function changes the interval of a running GPT unit.

+ * @pre     The GPT unit must have been activated using @p gptStart().

+ * @pre     The GPT unit must have been running in continuous mode using

+ *          @p gptStartContinuous().

+ * @post    The GPT unit interval is changed to the new value.

+ *

+ * @param[in] gptp      pointer to a @p GPTDriver object

+ * @param[in] interval  new cycle time in timer ticks

+ *

+ * @iclass

+ */

+#define stm32_gptChangeIntervalI(gptp, interval) {                            \

+  gpt_lld_change_interval(gptp, interval);                                    \

+}

+

 /*===========================================================================*/

 /* External declarations.                                                    */

 /*===========================================================================*/

@@ -89,6 +106,7 @@ extern "C" {
   void gptStop(GPTDriver *gptp);

   void gptStartContinuous(GPTDriver *gptp, gptcnt_t interval);

   void gptStartContinuousI(GPTDriver *gptp, gptcnt_t interval);

+  void stm32_gptChangeInterval(GPTDriver *gptp, gptcnt_t interval);

   void gptStartOneShot(GPTDriver *gptp, gptcnt_t interval);

   void gptStartOneShotI(GPTDriver *gptp, gptcnt_t interval);

   void gptStopTimer(GPTDriver *gptp);