Diff: TARGET_LPC54114/TOOLCHAIN_GCC_ARM/fsl_fmeas.h

Revision:

171:3a7713b1edbc

Parent:

148:fd96258d940d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_LPC54114/TOOLCHAIN_GCC_ARM/fsl_fmeas.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_FMEAS_H_
+#define _FSL_FMEAS_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup fmeas
+ * @{
+ */
+
+/*! @file */
+
+/*******************************************************************************
+ * Definitions
+ *******************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief Defines LPC Frequency Measure driver version 2.0.0.
+ *
+ * Change log:
+ * - Version 2.0.0
+ *   - initial version
+ */
+#define FSL_FMEAS_DRIVER_VERSION (MAKE_VERSION(2, 0, 0))
+/*@}*/
+
+/*******************************************************************************
+ * API
+ *******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+/*!
+ * @name FMEAS Functional Operation
+ * @{
+ */
+
+/*!
+ * @brief    Starts a frequency measurement cycle.
+ *
+ * @param    base : SYSCON peripheral base address.
+ */
+static inline void FMEAS_StartMeasure(SYSCON_Type *base)
+{
+    base->FREQMECTRL = 0;
+    base->FREQMECTRL = (1UL << 31);
+}
+
+/*!
+ * @brief    Indicates when a frequency measurement cycle is complete.
+ *
+ * @param    base : SYSCON peripheral base address.
+ * @return   true if a measurement cycle is active, otherwise false.
+ */
+static inline bool FMEAS_IsMeasureComplete(SYSCON_Type *base)
+{
+    return (bool)((base->FREQMECTRL & (1UL << 31)) == 0);
+}
+
+/*!
+ * @brief    Returns the computed value for a frequency measurement cycle
+ *
+ * @param    base         : SYSCON peripheral base address.
+ * @param    refClockRate : Reference clock rate used during the frequency measurement cycle.
+ *
+ * @return   Frequency in Hz.
+ */
+uint32_t FMEAS_GetFrequency(SYSCON_Type *base, uint32_t refClockRate);
+
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+/*! @}*/
+
+#endif /* _FSL_FMEAS_H_ */