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mbed-os/targets/TARGET_Maxim/TARGET_MAX32620C/mxc/tmr.h

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/**
* @file
* @brief Timer0 & Timer1 32/16-Bit Peripheral Driver.
*/
/* *****************************************************************************
* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*
* $Date: 2016-10-10 19:49:16 -0500 (Mon, 10 Oct 2016) $
* $Revision: 24675 $
*
*************************************************************************** */
/* Define to prevent redundant inclusion */
#ifndef _TIMER_H
#define _TIMER_H
/* **** Includes **** */
#include "mxc_config.h"
#include "tmr_regs.h"
#include "mxc_sys.h"
/* **** Extern CPP **** */
#ifdef __cplusplus
extern "C" {
#endif
/**
* @ingroup periphlibs
* @defgroup tmr Timers
* @brief 32/16-bit Timers
* @{
*/
/**
* Enumeration type for units of time.
*/
typedef enum {
TMR_UNIT_NANOSEC = 0, /**< Nanosecond Unit Indicator. */
TMR_UNIT_MICROSEC, /**< Microsecond Unit Indicator. */
TMR_UNIT_MILLISEC, /**< Millisecond Unit Indicator. */
TMR_UNIT_SEC, /**< Second Unit Indicator. */
} tmr_unit_t;
/**
* Enumeration type to select the 32-bit Timer Mode.
*/
typedef enum {
TMR32_MODE_ONE_SHOT = MXC_V_TMR_CTRL_MODE_ONE_SHOT, /**< One-shot Mode */
TMR32_MODE_CONTINUOUS = MXC_V_TMR_CTRL_MODE_CONTINUOUS, /**< Continuous Mode */
TMR32_MODE_COUNTER = MXC_V_TMR_CTRL_MODE_COUNTER, /**< Counter Mode */
TMR32_MODE_PWM = MXC_V_TMR_CTRL_MODE_PWM, /**< Pulse Width Modulation Mode */
TMR32_MODE_CAPTURE = MXC_V_TMR_CTRL_MODE_CAPTURE, /**< Capture Mode */
TMR32_MODE_COMPARE = MXC_V_TMR_CTRL_MODE_COMPARE, /**< Compare Mode */
TMR32_MODE_GATED = MXC_V_TMR_CTRL_MODE_GATED, /**< Gated Mode */
TMR32_MODE_MEASURE = MXC_V_TMR_CTRL_MODE_MEASURE /**< Measure Mode */
} tmr32_mode_t;
/**
* Enumeration type to select a 16-bit Timer Mode.
* @note 16-bit times only support One Shot and Continuous timers.
*/
typedef enum {
TMR16_MODE_ONE_SHOT = MXC_V_TMR_CTRL_MODE_ONE_SHOT, /**< One-Shot Mode. */
TMR16_MODE_CONTINUOUS = MXC_V_TMR_CTRL_MODE_CONTINUOUS /**< Continuous Mode. */
} tmr16_mode_t;
/**
* Enumeration type to select the Prescale Divider for the timer module. The prescaler
* divides the peripheral input clock to the timer by a selectable divisor.
*/
typedef enum {
TMR_PRESCALE_DIV_2_0 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_1, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{0} = 1 \f$ */
TMR_PRESCALE_DIV_2_1 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_2, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{1} = 2 \f$ */
TMR_PRESCALE_DIV_2_2 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_4, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{2} = 4 \f$ */
TMR_PRESCALE_DIV_2_3 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_8, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{3} = 8 \f$ */
TMR_PRESCALE_DIV_2_4 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_16, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{4} = 16 \f$ */
TMR_PRESCALE_DIV_2_5 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_32, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{5} = 32 \f$ */
TMR_PRESCALE_DIV_2_6 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_64, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{6} = 64 \f$ */
TMR_PRESCALE_DIV_2_7 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_128, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{7} = 128 \f$ */
TMR_PRESCALE_DIV_2_8 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_256, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{8} = 256 \f$ */
TMR_PRESCALE_DIV_2_9 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_512, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{9} = 512 \f$ */
TMR_PRESCALE_DIV_2_10 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_1024, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{10} = 1024 \f$ */
TMR_PRESCALE_DIV_2_11 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_2048, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{11} = 2048 \f$ */
TMR_PRESCALE_DIV_2_12 = MXC_V_TMR_CTRL_PRESCALE_DIVIDE_BY_4096, /**< Divide the peripheral input clock by \f$ TMR_{Prescaler} = 2^{12} = 4096 \f$ */
} tmr_prescale_t;
/**
* Enumeration type to set the polarity bit for pwm timer.
*/
typedef enum {
TMR_POLARITY_UNUSED = 0, /**< @internal Unused polarity @endinternal */
TMR_POLARITY_INIT_LOW = 0, /**< GPIO initial output level = low */
TMR_POLARITY_INIT_HIGH = 1, /**< GPIO initial output level = high */
TMR_POLARITY_RISING_EDGE = 0, /**< timer trigger on GPIO rising edge */
TMR_POLARITY_FALLING_EDGE = 1, /**< timer trigger on GPIO falling edge */
} tmr_polarity_t;
/**
* Enumeration type to set the polarity bit for pwm timer.
*/
typedef enum {
TMR_PWM_INVERTED = 0, /**< duty cycle = low pulse */
TMR_PWM_NONINVERTED, /**< duty cycle = high pulse */
} tmr_pwm_polarity_t;
/**
* Structure type for Configuring a 32-bit timer in all modes except PWM.
*/
typedef struct {
tmr32_mode_t mode; /**< Desired timer mode, see #tmr32_mode_t for valid modes. @note If PWM mode is desired, setting the mode to TMR32_MODE_PWM is valid. To configure PWM Mode, see #tmr32_cfg_pwm_t. */
tmr_polarity_t polarity; /**< Polarity for GPIO */
uint32_t compareCount; /**< Ticks to stop, reset back to 1, or compare timer */
} tmr32_cfg_t;
/**
* Structure type for Configuring PWM Mode for a 32-bit timer.
*/
typedef struct {
tmr_pwm_polarity_t polarity; /**< PWM polarity selection, see #tmr_pwm_polarity_t. */
uint32_t periodCount; /**< PWM period in number of timer ticks. */
uint32_t dutyCount; /**< PWM duty cycle in number of timer ticks. */
} tmr32_cfg_pwm_t;
/**
* Structure type for Configuring a 16-bit Timer.
*/
typedef struct {
tmr16_mode_t mode; /**< 16-bit timer mode, see #tmr16_mode_t for supported modes. */
uint16_t compareCount; /**< Number of timer ticks to either stop or reset the timer. */
} tmr16_cfg_t;
/**
* @brief Initializes the timer to a known state.
* @details This function initializes the timer to a known state and saves
* the prescaler. The timer will be left disabled. TMR_Init should
* be called before TMR_Config.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param prescale clock divider for the timer clock
* @param sysCfg Pointer to the timer system GPIO configuration. If not
* using GPIO for the timer instance, set this parameter
* to NULL.
*
* @retval #E_NO_ERROR Timer initialized successfully.
* @retval Error Code Timer was not initialized, see @ref MXC_Error_Codes.
*/
int TMR_Init(mxc_tmr_regs_t *tmr, tmr_prescale_t prescale, const sys_cfg_tmr_t *sysCfg);
/**
* @brief Configures the timer in the specified mode.
* @details The parameters in config structure must be set before calling
* this function. This function should be used for configuring the
* timer in all 32 bit modes other than PWM.
* @note The timer cannot be running when this function is called
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param config pointer to timer configuration
*/
void TMR32_Config(mxc_tmr_regs_t *tmr, const tmr32_cfg_t *config);
/**
* @brief Configures the timer in PWM mode.
* @details The parameters in config structure must be set before calling
* this function. This function should be used for configuring the
* timer in PWM mode only.
* @note The timer cannot be running when this function is called
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param config pointer to timer configuration
*/
void TMR32_PWMConfig(mxc_tmr_regs_t *tmr, const tmr32_cfg_pwm_t *config);
/**
* @brief Configures the timer in the specified mode.
* @details The parameters in config structure must be set before calling
* this function. This function should be used for configuring the
* timer in all 16 bit modes.
* @note The timer cannot be running when this function is called
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
* @param config pointer to timer configuration
*/
void TMR16_Config(mxc_tmr_regs_t *tmr, uint8_t index, const tmr16_cfg_t *config);
/**
* @brief Starts the specified timer.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*/
void TMR32_Start(mxc_tmr_regs_t *tmr);
/**
* @brief Starts the specified timer.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*/
void TMR16_Start(mxc_tmr_regs_t *tmr, uint8_t index);
/**
* @brief Stops the specified 32 bit timer.
* @details All other timer states are left unchanged.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*/
__STATIC_INLINE void TMR32_Stop(mxc_tmr_regs_t *tmr)
{
tmr->ctrl &= ~MXC_F_TMR_CTRL_ENABLE0;
}
/**
* @brief Stop the specified 16 bit timer.
* @details All other timer states are left unchanged.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*/
__STATIC_INLINE void TMR16_Stop(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
tmr->ctrl &= ~MXC_F_TMR_CTRL_ENABLE1;
else
tmr->ctrl &= ~MXC_F_TMR_CTRL_ENABLE0;
}
/**
* @brief Determines if the timer is running
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*
* @return 0 = timer is off, non-zero = timer is on
*/
__STATIC_INLINE uint32_t TMR32_IsActive(mxc_tmr_regs_t *tmr)
{
return (tmr->ctrl & MXC_F_TMR_CTRL_ENABLE0);
}
/**
* @brief Determines if the timer is running
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*
* @return 0 Timer is off.
* @return Non-zero Timer is on.
*/
__STATIC_INLINE uint32_t TMR16_IsActive(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
return (tmr->ctrl & MXC_F_TMR_CTRL_ENABLE1);
else
return (tmr->ctrl & MXC_F_TMR_CTRL_ENABLE0);
}
/**
* @brief Enables the timer's interrupt
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*/
__STATIC_INLINE void TMR32_EnableINT(mxc_tmr_regs_t *tmr)
{
tmr->inten |= MXC_F_TMR_INTEN_TIMER0;
}
/**
* @brief Enables the timer's interrupt
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*/
__STATIC_INLINE void TMR16_EnableINT(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
tmr->inten |= MXC_F_TMR_INTEN_TIMER1;
else
tmr->inten |= MXC_F_TMR_INTEN_TIMER0;
}
/**
* @brief Disables the timer's interrupt
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*/
__STATIC_INLINE void TMR32_DisableINT(mxc_tmr_regs_t *tmr)
{
tmr->inten &= ~MXC_F_TMR_INTEN_TIMER0;
}
/**
* @brief Disables the timer's interrupt
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*/
__STATIC_INLINE void TMR16_DisableINT(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
tmr->inten &= ~MXC_F_TMR_INTEN_TIMER1;
else
tmr->inten &= ~MXC_F_TMR_INTEN_TIMER0;
}
/**
* @brief Gets the timer's interrupt flag
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*
* @return 0 = flag not set, non-zero = flag is set
*/
__STATIC_INLINE uint32_t TMR32_GetFlag(mxc_tmr_regs_t *tmr)
{
return (tmr->intfl & MXC_F_TMR_INTFL_TIMER0);
}
/**
* @brief Gets the timer's interrupt flag
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*
* @return 0 = flag not set, non-zero = flag is set
*/
__STATIC_INLINE uint32_t TMR16_GetFlag(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
return (tmr->intfl & MXC_F_TMR_INTFL_TIMER1);
else
return (tmr->intfl & MXC_F_TMR_INTFL_TIMER0);
}
/**
* @brief Clears the timer interrupt flag
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*/
__STATIC_INLINE void TMR32_ClearFlag(mxc_tmr_regs_t *tmr)
{
tmr->intfl = MXC_F_TMR_INTFL_TIMER0;
}
/**
* @brief Clears the timer interrupt flag for the specified index
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
*/
__STATIC_INLINE void TMR16_ClearFlag(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
tmr->intfl = MXC_F_TMR_INTFL_TIMER1;
else
tmr->intfl = MXC_F_TMR_INTFL_TIMER0;
}
/**
* @brief Set the current tick value to start counting from.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param count value to set the current ticks
*/
__STATIC_INLINE void TMR32_SetCount(mxc_tmr_regs_t *tmr, uint32_t count)
{
tmr->count32 = count;
}
/**
* @brief Set the current tick value to start counting from.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
* @param count value to set the current ticks
*/
__STATIC_INLINE void TMR16_SetCount(mxc_tmr_regs_t *tmr, uint8_t index, uint16_t count)
{
if (index)
tmr->count16_1 = count;
else
tmr->count16_0 = count;
}
/**
* @brief Gets the most current count value.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*
* @return current count value in ticks
*/
__STATIC_INLINE uint32_t TMR32_GetCount(mxc_tmr_regs_t *tmr)
{
return (tmr->count32);
}
/**
* @brief Gets the most current count value.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer(0 = 16_0 or 1 = 16_1)
*
* @return current count value in ticks
*/
__STATIC_INLINE uint32_t TMR16_GetCount(mxc_tmr_regs_t *tmr, uint8_t index)
{
if(index)
return tmr->count16_1;
else
return tmr->count16_0;
}
/**
* @brief Gets the most recent capture value.
* @details Used in Capture or Measure timer modes
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*
* @return capture value in ticks
*/
__STATIC_INLINE uint32_t TMR32_GetCapture(mxc_tmr_regs_t *tmr)
{
return (tmr->pwm_cap32);
}
/**
* @brief Set a new compare tick value for timer
* @details Depending on the timer mode this is the tick value to stop the
* timer, reset ticks to 1, or compare the timer
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param count new terminal/compare value in timer counts
*/
__STATIC_INLINE void TMR32_SetCompare(mxc_tmr_regs_t *tmr, uint32_t count)
{
tmr->term_cnt32 = count;
}
/**
* @brief Get compare tick value for timer
* @param tmr Pointer to timer registers for the timer instance to modify.
* @return compare value in ticks
*/
__STATIC_INLINE uint32_t TMR32_GetCompare(mxc_tmr_regs_t *tmr)
{
return tmr->term_cnt32;
}
/**
* @brief Set a new compare tick value for timer
* @details Depending on the timer mode this is the tick value to stop the
* timer, reset ticks to 1, or compare the timer
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
* @param count new terminal/compare value in timer counts
*/
__STATIC_INLINE void TMR16_SetCompare(mxc_tmr_regs_t *tmr, uint8_t index, uint16_t count)
{
if (index)
tmr->term_cnt16_1 = count;
else
tmr->term_cnt16_0 = count;
}
/**
* @brief Get compare tick value for timer
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param index selects which 16 bit timer (0 = 16_0 or 1 = 16_1)
* @return compare value in ticks
*/
__STATIC_INLINE uint32_t TMR16_GetCompare(mxc_tmr_regs_t *tmr, uint8_t index)
{
if (index)
return tmr->term_cnt16_1;
return tmr->term_cnt16_0;
}
/**
* @brief Returns the prescale value used by the timer
*
* @param tmr Pointer to timer registers for the timer instance to modify.
*
* @return prescaler
*/
uint32_t TMR_GetPrescaler(mxc_tmr_regs_t *tmr);
/**
* @brief Set a new duty cycle when the timer is used in PWM mode.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param dutyCount duty cycle value in timer counts
*/
__STATIC_INLINE void TMR32_SetDuty(mxc_tmr_regs_t *tmr, uint32_t dutyCount)
{
tmr->pwm_cap32 = dutyCount;
}
/**
* @brief Set a new duty cycle when the timer is used in PWM mode.
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param dutyPercent duty cycle value in percent (0 to 100%)
*/
__STATIC_INLINE void TMR32_SetDutyPer(mxc_tmr_regs_t *tmr, uint32_t dutyPercent)
{
uint32_t periodCount = tmr->term_cnt32;
tmr->pwm_cap32 = ((uint64_t)periodCount * dutyPercent) / 100;
}
/**
* @brief Set a new period value for PWM timer
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param period new period value in timer counts
*/
__STATIC_INLINE void TMR32_SetPeriod(mxc_tmr_regs_t *tmr, uint32_t period)
{
tmr->term_cnt32 = period;
}
/**
* @brief Converts frequency and duty cycle % to period and duty ticks
* @note TMR_Init should be called before this function to set the prescaler
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param dutyPercent duty cycle in percent (0 to 100%)
* @param freq frequency of pwm signal in Hz
* @param dutyTicks calculated duty cycle in ticks
* @param periodTicks calculated period in ticks
*
* @returns #E_NO_ERROR if everything is successful, error if unsuccessful.
*
*/
int TMR32_GetPWMTicks(mxc_tmr_regs_t *tmr, uint8_t dutyPercent, uint32_t freq, uint32_t *dutyTicks, uint32_t *periodTicks);
/**
* @brief Converts a time and units to a number of ticks for the 32-bit timer.
* @note TMR_Init should be called before this function to set the prescaler
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param time time value.
* @param units time units.
* @param ticks calculated number of ticks.
*
* @returns #E_NO_ERROR if everything is successful, error if unsuccessful.
*/
int TMR32_TimeToTicks(mxc_tmr_regs_t *tmr, uint32_t time, tmr_unit_t units, uint32_t *ticks);
/**
* @brief Converts a time and units to a number of ticks for the 16-bit timer.
* @note TMR_Init should be called before this function to set the prescaler
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param time time value.
* @param units time units.
* @param ticks calculated number of ticks.
*
* @returns #E_NO_ERROR if everything is successful, error if unsuccessful.
*/
int TMR16_TimeToTicks(mxc_tmr_regs_t *tmr, uint32_t time, tmr_unit_t units, uint16_t *ticks);
/**
* @brief Converts a number of ticks to a time and units for the timer.
* @note TMR_Init should be called before this function to set the prescaler
*
* @param tmr Pointer to timer registers for the timer instance to modify.
* @param ticks number of ticks.
* @param time calculated time value.
* @param units calculated time units.
*
* @returns #E_NO_ERROR if everything is successful, error if unsuccessful.
*/
int TMR_TicksToTime(mxc_tmr_regs_t *tmr, uint32_t ticks, uint32_t *time, tmr_unit_t *units);
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _TIMER_H */
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