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TARGET_EFM32WG_STK3800/TARGET_Silicon_Labs/TARGET_EFM32/emlib/inc/em_prs.h
- Committer:
- AnnaBridge
- Date:
- 2017-11-08
- Revision:
- 156:ff21514d8981
- Child:
- 159:7130f322cb7e
File content as of revision 156:ff21514d8981:
/***************************************************************************//** * @file em_prs.h * @brief Peripheral Reflex System (PRS) peripheral API * @version 5.1.2 ******************************************************************************* * @section License * <b>Copyright 2016 Silicon Laboratories, Inc. 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. * ******************************************************************************/ #ifndef EM_PRS_H #define EM_PRS_H #include "em_device.h" #if defined(PRS_COUNT) && (PRS_COUNT > 0) #ifdef __cplusplus extern "C" { #endif /***************************************************************************//** * @addtogroup emlib * @{ ******************************************************************************/ /***************************************************************************//** * @addtogroup PRS * @{ ******************************************************************************/ /******************************************************************************* ******************************** ENUMS ************************************ ******************************************************************************/ /** Edge detection type. */ typedef enum { prsEdgeOff = PRS_CH_CTRL_EDSEL_OFF, /**< Leave signal as is. */ prsEdgePos = PRS_CH_CTRL_EDSEL_POSEDGE, /**< Generate pules on positive edge. */ prsEdgeNeg = PRS_CH_CTRL_EDSEL_NEGEDGE, /**< Generate pules on negative edge. */ prsEdgeBoth = PRS_CH_CTRL_EDSEL_BOTHEDGES /**< Generate pules on both edges. */ } PRS_Edge_TypeDef; /******************************************************************************* ***************************** PROTOTYPES ********************************** ******************************************************************************/ /***************************************************************************//** * @brief * Set level control bit for one or more channels. * * @details * The level value for a channel is XORed with both the pulse possible issued * by PRS_PulseTrigger() and the PRS input signal selected for the channel(s). * * @param[in] level * Level to use for channels indicated by @p mask. Use logical OR combination * of PRS_SWLEVEL_CHnLEVEL defines for channels to set high level, otherwise 0. * * @param[in] mask * Mask indicating which channels to set level for. Use logical OR combination * of PRS_SWLEVEL_CHnLEVEL defines. ******************************************************************************/ __STATIC_INLINE void PRS_LevelSet(uint32_t level, uint32_t mask) { PRS->SWLEVEL = (PRS->SWLEVEL & ~mask) | (level & mask); } /***************************************************************************//** * @brief * Trigger a high pulse (one HFPERCLK) for one or more channels. * * @details * Setting a bit for a channel causes the bit in the register to remain high * for one HFPERCLK cycle. The pulse is XORed with both the corresponding bit * in PRS SWLEVEL register and the PRS input signal selected for the * channel(s). * * @param[in] channels * Logical ORed combination of channels to trigger a pulse for. Use * PRS_SWPULSE_CHnPULSE defines. ******************************************************************************/ __STATIC_INLINE void PRS_PulseTrigger(uint32_t channels) { PRS->SWPULSE = channels & _PRS_SWPULSE_MASK; } void PRS_SourceSignalSet(unsigned int ch, uint32_t source, uint32_t signal, PRS_Edge_TypeDef edge); #if defined( PRS_CH_CTRL_ASYNC ) void PRS_SourceAsyncSignalSet(unsigned int ch, uint32_t source, uint32_t signal); #endif /** @} (end addtogroup PRS) */ /** @} (end addtogroup emlib) */ #ifdef __cplusplus } #endif #endif /* defined(PRS_COUNT) && (PRS_COUNT > 0) */ #endif /* EM_PRS_H */