243 lines
11 KiB
C
243 lines
11 KiB
C
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//*****************************************************************************
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//
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// am_hal_stimer.h
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//! @file
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//!
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//! @brief Functions for accessing and configuring the STIMER.
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//!
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//! @addtogroup stimer2 Counter/Timer (STIMER)
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//! @ingroup apollo2hal
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//! @{
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// Copyright (c) 2017, Ambiq Micro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.2.9 of the AmbiqSuite Development Package.
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//
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//*****************************************************************************
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#ifndef AM_HAL_STIMER_H
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#define AM_HAL_STIMER_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//
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// Compute address of a given COMPARE or CAPTURE register.
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// Note - For Apollo2, the parameter n should be 0 (as only 1 stimer module
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// exists) and the parameter r should be 0-7 (compare) or 0-3 (capture).
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//
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#define AM_REG_STIMER_COMPARE(n, r) (AM_REG_CTIMERn(n) + \
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AM_REG_CTIMER_SCMPR0_O + (r * 4))
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#define AM_REG_STIMER_CAPTURE(n, r) (AM_REG_CTIMERn(n) + \
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AM_REG_CTIMER_SCAPT0_O + (r * 4))
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//*****************************************************************************
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//
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//! @name Interrupt Status Bits
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//! @brief Interrupt Status Bits for enable/disble use
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//!
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//! These macros may be used to set and clear interrupt bits
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//! @{
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//
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//*****************************************************************************
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#define AM_HAL_STIMER_INT_COMPAREA AM_REG_CTIMER_STMINTSTAT_COMPAREA_M
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#define AM_HAL_STIMER_INT_COMPAREB AM_REG_CTIMER_STMINTSTAT_COMPAREB_M
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#define AM_HAL_STIMER_INT_COMPAREC AM_REG_CTIMER_STMINTSTAT_COMPAREC_M
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#define AM_HAL_STIMER_INT_COMPARED AM_REG_CTIMER_STMINTSTAT_COMPARED_M
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#define AM_HAL_STIMER_INT_COMPAREE AM_REG_CTIMER_STMINTSTAT_COMPAREE_M
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#define AM_HAL_STIMER_INT_COMPAREF AM_REG_CTIMER_STMINTSTAT_COMPAREF_M
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#define AM_HAL_STIMER_INT_COMPAREG AM_REG_CTIMER_STMINTSTAT_COMPAREG_M
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#define AM_HAL_STIMER_INT_COMPAREH AM_REG_CTIMER_STMINTSTAT_COMPAREH_M
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#define AM_HAL_STIMER_INT_OVERFLOW AM_REG_CTIMER_STMINTSTAT_OVERFLOW_M
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#define AM_HAL_STIMER_INT_CAPTUREA AM_REG_CTIMER_STMINTSTAT_CAPTUREA_M
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#define AM_HAL_STIMER_INT_CAPTUREB AM_REG_CTIMER_STMINTSTAT_CAPTUREB_M
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#define AM_HAL_STIMER_INT_CAPTUREC AM_REG_CTIMER_STMINTSTAT_CAPTUREC_M
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#define AM_HAL_STIMER_INT_CAPTURED AM_REG_CTIMER_STMINTSTAT_CAPTURED_M
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//! @}
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//*****************************************************************************
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//
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//! @name STimer Configuration Bits
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//! @brief Interrupt Status Bits for enable/disble use
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//!
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//! These macros may be used to set and clear interrupt bits
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//! @{
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//
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//*****************************************************************************
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#define AM_HAL_STIMER_CFG_THAW \
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AM_REG_CTIMER_STCFG_FREEZE_THAW
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#define AM_HAL_STIMER_CFG_FREEZE \
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AM_REG_CTIMER_STCFG_FREEZE_FREEZE
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#define AM_HAL_STIMER_CFG_RUN \
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AM_REG_CTIMER_STCFG_CLEAR_RUN
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#define AM_HAL_STIMER_CFG_CLEAR \
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AM_REG_CTIMER_STCFG_CLEAR_CLEAR
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#define AM_HAL_STIMER_CFG_COMPARE_A_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_A_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_B_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_B_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_C_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_C_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_D_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_D_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_E_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_E_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_F_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_F_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_G_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_G_EN_ENABLE
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#define AM_HAL_STIMER_CFG_COMPARE_H_ENABLE \
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AM_REG_CTIMER_STCFG_COMPARE_H_EN_ENABLE
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//! @}
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//*****************************************************************************
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//
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//! @name Clock Configuration options
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//! @brief STimer Configuration register options.
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//!
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//! These options are to be used with the am_hal_stimer_config() function.
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//! @{
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//
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//*****************************************************************************
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#define AM_HAL_STIMER_NO_CLK \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_NOCLK)
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#define AM_HAL_STIMER_HFRC_3MHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_HFRC_DIV16)
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#define AM_HAL_STIMER_HFRC_187_5KHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_HFRC_DIV256)
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#define AM_HAL_STIMER_XTAL_32KHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_XTAL_DIV1)
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#define AM_HAL_STIMER_XTAL_16KHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_XTAL_DIV2)
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#define AM_HAL_STIMER_XTAL_1KHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_XTAL_DIV32)
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#define AM_HAL_STIMER_LFRC_1KHZ \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_LFRC_DIV1)
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#define AM_HAL_STIMER_HFRC_CTIMER0A \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_CTIMER0A)
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#define AM_HAL_STIMER_HFRC_CTIMER0B \
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AM_REG_CTIMER_STCFG_CLKSEL(AM_REG_CTIMER_STCFG_CLKSEL_CTIMER0B)
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//! @}
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//*****************************************************************************
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//
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//! @name Capture Control Register options.
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//! @brief Configuration options for capture control register.
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//!
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//! These options are to be used with the am_hal_stimer_capture_control_set
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//! function.
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//! @{
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//
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//*****************************************************************************
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#define AM_HAL_STIMER_CAPTURE_A_ENABLE \
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AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_A_ENABLE
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#define AM_HAL_STIMER_CAPTURE_B_ENABLE \
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AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_B_ENABLE
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#define AM_HAL_STIMER_CAPTURE_C_ENABLE \
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AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_C_ENABLE
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#define AM_HAL_STIMER_CAPTURE_D_ENABLE \
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AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_D_ENABLE
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//! @}
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//*****************************************************************************
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//
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//
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// Stimer configuration structure
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! Configuration options for the STIMER
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//
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uint32_t ui32STimerConfig;
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}
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am_hal_stimer_config_t;
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//*****************************************************************************
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//
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// External function definitions
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//
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//*****************************************************************************
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extern uint32_t am_hal_stimer_config(uint32_t ui32STimerConfig);
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extern uint32_t am_hal_stimer_counter_get(void);
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extern void am_hal_stimer_counter_clear(void);
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extern void am_hal_stimer_compare_delta_set(uint32_t ui32CmprInstance,
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uint32_t ui32Delta);
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extern uint32_t am_hal_stimer_compare_get(uint32_t ui32CmprInstance);
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extern void am_hal_stimer_capture_start(uint32_t ui32CaptureNum,
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uint32_t ui32GPIONumber,
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bool bPolarity);
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extern void am_hal_stimer_capture_stop(uint32_t ui32CaptureNum);
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extern uint32_t am_hal_stimer_capture_get(uint32_t ui32CaptureNum);
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extern void am_hal_stimer_int_enable(uint32_t ui32Interrupt);
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extern uint32_t am_hal_stimer_int_enable_get(void);
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extern void am_hal_stimer_int_disable(uint32_t ui32Interrupt);
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extern void am_hal_stimer_int_set(uint32_t ui32Interrupt);
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extern void am_hal_stimer_int_clear(uint32_t ui32Interrupt);
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extern uint32_t am_hal_stimer_int_status_get(bool bEnabledOnly);
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#ifdef __cplusplus
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}
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#endif
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#endif // AM_HAL_STIMER_H
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//*****************************************************************************
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//
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// End Doxygen group.
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//! @}
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//
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//*****************************************************************************
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