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TARGET_LPC54114/TOOLCHAIN_ARM_STD/fsl_fmeas.h@171:3a7713b1edbc, 2018-11-08 (annotated)
- Committer:
- AnnaBridge
- Date:
- Thu Nov 08 11:45:42 2018 +0000
- Revision:
- 171:3a7713b1edbc
- Parent:
- TARGET_LPC54114/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC54114/drivers/fsl_fmeas.h@148:fd96258d940d
mbed library. Release version 164
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Kojto | 148:fd96258d940d | 1 | /* |
Kojto | 148:fd96258d940d | 2 | * Copyright (c) 2016, Freescale Semiconductor, Inc. |
Kojto | 148:fd96258d940d | 3 | * All rights reserved. |
Kojto | 148:fd96258d940d | 4 | * |
Kojto | 148:fd96258d940d | 5 | * Redistribution and use in source and binary forms, with or without modification, |
Kojto | 148:fd96258d940d | 6 | * are permitted provided that the following conditions are met: |
Kojto | 148:fd96258d940d | 7 | * |
Kojto | 148:fd96258d940d | 8 | * o Redistributions of source code must retain the above copyright notice, this list |
Kojto | 148:fd96258d940d | 9 | * of conditions and the following disclaimer. |
Kojto | 148:fd96258d940d | 10 | * |
Kojto | 148:fd96258d940d | 11 | * o Redistributions in binary form must reproduce the above copyright notice, this |
Kojto | 148:fd96258d940d | 12 | * list of conditions and the following disclaimer in the documentation and/or |
Kojto | 148:fd96258d940d | 13 | * other materials provided with the distribution. |
Kojto | 148:fd96258d940d | 14 | * |
Kojto | 148:fd96258d940d | 15 | * o Neither the name of Freescale Semiconductor, Inc. nor the names of its |
Kojto | 148:fd96258d940d | 16 | * contributors may be used to endorse or promote products derived from this |
Kojto | 148:fd96258d940d | 17 | * software without specific prior written permission. |
Kojto | 148:fd96258d940d | 18 | * |
Kojto | 148:fd96258d940d | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
Kojto | 148:fd96258d940d | 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
Kojto | 148:fd96258d940d | 21 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
Kojto | 148:fd96258d940d | 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
Kojto | 148:fd96258d940d | 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
Kojto | 148:fd96258d940d | 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
Kojto | 148:fd96258d940d | 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
Kojto | 148:fd96258d940d | 26 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
Kojto | 148:fd96258d940d | 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
Kojto | 148:fd96258d940d | 28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Kojto | 148:fd96258d940d | 29 | */ |
Kojto | 148:fd96258d940d | 30 | #ifndef _FSL_FMEAS_H_ |
Kojto | 148:fd96258d940d | 31 | #define _FSL_FMEAS_H_ |
Kojto | 148:fd96258d940d | 32 | |
Kojto | 148:fd96258d940d | 33 | #include "fsl_common.h" |
Kojto | 148:fd96258d940d | 34 | |
Kojto | 148:fd96258d940d | 35 | /*! |
Kojto | 148:fd96258d940d | 36 | * @addtogroup fmeas |
Kojto | 148:fd96258d940d | 37 | * @{ |
Kojto | 148:fd96258d940d | 38 | */ |
Kojto | 148:fd96258d940d | 39 | |
Kojto | 148:fd96258d940d | 40 | /*! @file */ |
Kojto | 148:fd96258d940d | 41 | |
Kojto | 148:fd96258d940d | 42 | /******************************************************************************* |
Kojto | 148:fd96258d940d | 43 | * Definitions |
Kojto | 148:fd96258d940d | 44 | *******************************************************************************/ |
Kojto | 148:fd96258d940d | 45 | |
Kojto | 148:fd96258d940d | 46 | /*! @name Driver version */ |
Kojto | 148:fd96258d940d | 47 | /*@{*/ |
Kojto | 148:fd96258d940d | 48 | /*! @brief Defines LPC Frequency Measure driver version 2.0.0. |
Kojto | 148:fd96258d940d | 49 | * |
Kojto | 148:fd96258d940d | 50 | * Change log: |
Kojto | 148:fd96258d940d | 51 | * - Version 2.0.0 |
Kojto | 148:fd96258d940d | 52 | * - initial version |
Kojto | 148:fd96258d940d | 53 | */ |
Kojto | 148:fd96258d940d | 54 | #define FSL_FMEAS_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) |
Kojto | 148:fd96258d940d | 55 | /*@}*/ |
Kojto | 148:fd96258d940d | 56 | |
Kojto | 148:fd96258d940d | 57 | /******************************************************************************* |
Kojto | 148:fd96258d940d | 58 | * API |
Kojto | 148:fd96258d940d | 59 | *******************************************************************************/ |
Kojto | 148:fd96258d940d | 60 | |
Kojto | 148:fd96258d940d | 61 | #if defined(__cplusplus) |
Kojto | 148:fd96258d940d | 62 | extern "C" { |
Kojto | 148:fd96258d940d | 63 | #endif /* __cplusplus */ |
Kojto | 148:fd96258d940d | 64 | |
Kojto | 148:fd96258d940d | 65 | /*! |
Kojto | 148:fd96258d940d | 66 | * @name FMEAS Functional Operation |
Kojto | 148:fd96258d940d | 67 | * @{ |
Kojto | 148:fd96258d940d | 68 | */ |
Kojto | 148:fd96258d940d | 69 | |
Kojto | 148:fd96258d940d | 70 | /*! |
Kojto | 148:fd96258d940d | 71 | * @brief Starts a frequency measurement cycle. |
Kojto | 148:fd96258d940d | 72 | * |
Kojto | 148:fd96258d940d | 73 | * @param base : SYSCON peripheral base address. |
Kojto | 148:fd96258d940d | 74 | */ |
Kojto | 148:fd96258d940d | 75 | static inline void FMEAS_StartMeasure(SYSCON_Type *base) |
Kojto | 148:fd96258d940d | 76 | { |
Kojto | 148:fd96258d940d | 77 | base->FREQMECTRL = 0; |
Kojto | 148:fd96258d940d | 78 | base->FREQMECTRL = (1UL << 31); |
Kojto | 148:fd96258d940d | 79 | } |
Kojto | 148:fd96258d940d | 80 | |
Kojto | 148:fd96258d940d | 81 | /*! |
Kojto | 148:fd96258d940d | 82 | * @brief Indicates when a frequency measurement cycle is complete. |
Kojto | 148:fd96258d940d | 83 | * |
Kojto | 148:fd96258d940d | 84 | * @param base : SYSCON peripheral base address. |
Kojto | 148:fd96258d940d | 85 | * @return true if a measurement cycle is active, otherwise false. |
Kojto | 148:fd96258d940d | 86 | */ |
Kojto | 148:fd96258d940d | 87 | static inline bool FMEAS_IsMeasureComplete(SYSCON_Type *base) |
Kojto | 148:fd96258d940d | 88 | { |
Kojto | 148:fd96258d940d | 89 | return (bool)((base->FREQMECTRL & (1UL << 31)) == 0); |
Kojto | 148:fd96258d940d | 90 | } |
Kojto | 148:fd96258d940d | 91 | |
Kojto | 148:fd96258d940d | 92 | /*! |
Kojto | 148:fd96258d940d | 93 | * @brief Returns the computed value for a frequency measurement cycle |
Kojto | 148:fd96258d940d | 94 | * |
Kojto | 148:fd96258d940d | 95 | * @param base : SYSCON peripheral base address. |
Kojto | 148:fd96258d940d | 96 | * @param refClockRate : Reference clock rate used during the frequency measurement cycle. |
Kojto | 148:fd96258d940d | 97 | * |
Kojto | 148:fd96258d940d | 98 | * @return Frequency in Hz. |
Kojto | 148:fd96258d940d | 99 | */ |
Kojto | 148:fd96258d940d | 100 | uint32_t FMEAS_GetFrequency(SYSCON_Type *base, uint32_t refClockRate); |
Kojto | 148:fd96258d940d | 101 | |
Kojto | 148:fd96258d940d | 102 | /*@}*/ |
Kojto | 148:fd96258d940d | 103 | |
Kojto | 148:fd96258d940d | 104 | #if defined(__cplusplus) |
Kojto | 148:fd96258d940d | 105 | } |
Kojto | 148:fd96258d940d | 106 | #endif /* __cplusplus */ |
Kojto | 148:fd96258d940d | 107 | |
Kojto | 148:fd96258d940d | 108 | /*! @}*/ |
Kojto | 148:fd96258d940d | 109 | |
Kojto | 148:fd96258d940d | 110 | #endif /* _FSL_FMEAS_H_ */ |