added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

Revision:
144:ef7eb2e8f9f7
Parent:
50:a417edff4437
--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_prs.c	Tue Aug 02 14:07:36 2016 +0000
+++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_prs.c	Fri Sep 02 15:07:44 2016 +0100
@@ -1,126 +1,126 @@
-/***************************************************************************//**
- * @file em_prs.c
- * @brief Peripheral Reflex System (PRS) Peripheral API
- * @version 4.2.1
- *******************************************************************************
- * @section License
- * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
- *******************************************************************************
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
- *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
- *
- ******************************************************************************/
-
-#include "em_prs.h"
-#if defined(PRS_COUNT) && (PRS_COUNT > 0)
-
-#include "em_assert.h"
-
-/***************************************************************************//**
- * @addtogroup EM_Library
- * @{
- ******************************************************************************/
-
-/***************************************************************************//**
- * @addtogroup PRS
- * @brief Peripheral Reflex System (PRS) Peripheral API
- * @{
- ******************************************************************************/
-
-/*******************************************************************************
- **************************   GLOBAL FUNCTIONS   *******************************
- ******************************************************************************/
-
-/***************************************************************************//**
- * @brief
- *   Set source and signal to be used for a channel.
- *
- * @param[in] ch
- *   Channel to define signal and source for.
- *
- * @param[in] source
- *   Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
- *
- * @param[in] signal
- *   Signal (for selected @p source) to use. Use one of PRS_CH_CTRL_SIGSEL_x
- *   defines.
- *
- * @param[in] edge
- *   Edge (for selected source/signal) to generate pulse for.
- ******************************************************************************/
-void PRS_SourceSignalSet(unsigned int ch,
-                         uint32_t source,
-                         uint32_t signal,
-                         PRS_Edge_TypeDef edge)
-{
-  EFM_ASSERT(ch < PRS_CHAN_COUNT);
-
-  PRS->CH[ch].CTRL = (source & _PRS_CH_CTRL_SOURCESEL_MASK)
-                     | (signal & _PRS_CH_CTRL_SIGSEL_MASK)
-                     | (uint32_t)edge;
-}
-
-#if defined( PRS_CH_CTRL_ASYNC )
-/***************************************************************************//**
- * @brief
- *   Set source and asynchronous signal to be used for a channel.
- *
- * @details
- *   Asynchronous reflexes are not clocked on HFPERCLK, and can be used even in
- *   EM2/EM3.
- *   There is a limitation to reflexes operating in asynchronous mode: they can
- *   only be used by a subset of the reflex consumers. Please refer to PRS
- *   chapter in the reference manual for the complete list of supported
- *   asynchronous signals and consumers.
- *
- * @note
- *   This function is not supported on EFM32GxxxFyyy parts.
- *   In asynchronous mode, the edge detector only works in EM0, hence it shall
- *   not be used. The EDSEL parameter in PRS_CHx_CTRL register is set to 0 (OFF)
- *   by default.
- *
- * @param[in] ch
- *   Channel to define source and asynchronous signal for.
- *
- * @param[in] source
- *   Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
- *
- * @param[in] signal
- *   Asynchronous signal (for selected @p source) to use. Use one of the
- *   PRS_CH_CTRL_SIGSEL_x defines that support asynchronous operation.
- ******************************************************************************/
-void PRS_SourceAsyncSignalSet(unsigned int ch,
-                              uint32_t source,
-                              uint32_t signal)
-{
-  EFM_ASSERT(ch < PRS_CHAN_COUNT);
-
-  PRS->CH[ch].CTRL = PRS_CH_CTRL_ASYNC
-                     | (source & _PRS_CH_CTRL_SOURCESEL_MASK)
-                     | (signal & _PRS_CH_CTRL_SIGSEL_MASK)
-                     | PRS_CH_CTRL_EDSEL_OFF;
-}
-#endif
-
-/** @} (end addtogroup PRS) */
-/** @} (end addtogroup EM_Library) */
-#endif /* defined(PRS_COUNT) && (PRS_COUNT > 0) */
+/***************************************************************************//**
+ * @file em_prs.c
+ * @brief Peripheral Reflex System (PRS) Peripheral API
+ * @version 4.2.1
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
+ * obligation to support this Software. Silicon Labs is providing the
+ * Software "AS IS", with no express or implied warranties of any kind,
+ * including, but not limited to, any implied warranties of merchantability
+ * or fitness for any particular purpose or warranties against infringement
+ * of any proprietary rights of a third party.
+ *
+ * Silicon Labs will not be liable for any consequential, incidental, or
+ * special damages, or any other relief, or for any claim by any third party,
+ * arising from your use of this Software.
+ *
+ ******************************************************************************/
+
+#include "em_prs.h"
+#if defined(PRS_COUNT) && (PRS_COUNT > 0)
+
+#include "em_assert.h"
+
+/***************************************************************************//**
+ * @addtogroup EM_Library
+ * @{
+ ******************************************************************************/
+
+/***************************************************************************//**
+ * @addtogroup PRS
+ * @brief Peripheral Reflex System (PRS) Peripheral API
+ * @{
+ ******************************************************************************/
+
+/*******************************************************************************
+ **************************   GLOBAL FUNCTIONS   *******************************
+ ******************************************************************************/
+
+/***************************************************************************//**
+ * @brief
+ *   Set source and signal to be used for a channel.
+ *
+ * @param[in] ch
+ *   Channel to define signal and source for.
+ *
+ * @param[in] source
+ *   Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
+ *
+ * @param[in] signal
+ *   Signal (for selected @p source) to use. Use one of PRS_CH_CTRL_SIGSEL_x
+ *   defines.
+ *
+ * @param[in] edge
+ *   Edge (for selected source/signal) to generate pulse for.
+ ******************************************************************************/
+void PRS_SourceSignalSet(unsigned int ch,
+                         uint32_t source,
+                         uint32_t signal,
+                         PRS_Edge_TypeDef edge)
+{
+  EFM_ASSERT(ch < PRS_CHAN_COUNT);
+
+  PRS->CH[ch].CTRL = (source & _PRS_CH_CTRL_SOURCESEL_MASK)
+                     | (signal & _PRS_CH_CTRL_SIGSEL_MASK)
+                     | (uint32_t)edge;
+}
+
+#if defined( PRS_CH_CTRL_ASYNC )
+/***************************************************************************//**
+ * @brief
+ *   Set source and asynchronous signal to be used for a channel.
+ *
+ * @details
+ *   Asynchronous reflexes are not clocked on HFPERCLK, and can be used even in
+ *   EM2/EM3.
+ *   There is a limitation to reflexes operating in asynchronous mode: they can
+ *   only be used by a subset of the reflex consumers. Please refer to PRS
+ *   chapter in the reference manual for the complete list of supported
+ *   asynchronous signals and consumers.
+ *
+ * @note
+ *   This function is not supported on EFM32GxxxFyyy parts.
+ *   In asynchronous mode, the edge detector only works in EM0, hence it shall
+ *   not be used. The EDSEL parameter in PRS_CHx_CTRL register is set to 0 (OFF)
+ *   by default.
+ *
+ * @param[in] ch
+ *   Channel to define source and asynchronous signal for.
+ *
+ * @param[in] source
+ *   Source to select for channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
+ *
+ * @param[in] signal
+ *   Asynchronous signal (for selected @p source) to use. Use one of the
+ *   PRS_CH_CTRL_SIGSEL_x defines that support asynchronous operation.
+ ******************************************************************************/
+void PRS_SourceAsyncSignalSet(unsigned int ch,
+                              uint32_t source,
+                              uint32_t signal)
+{
+  EFM_ASSERT(ch < PRS_CHAN_COUNT);
+
+  PRS->CH[ch].CTRL = PRS_CH_CTRL_ASYNC
+                     | (source & _PRS_CH_CTRL_SOURCESEL_MASK)
+                     | (signal & _PRS_CH_CTRL_SIGSEL_MASK)
+                     | PRS_CH_CTRL_EDSEL_OFF;
+}
+#endif
+
+/** @} (end addtogroup PRS) */
+/** @} (end addtogroup EM_Library) */
+#endif /* defined(PRS_COUNT) && (PRS_COUNT > 0) */