mbed library sources. Supersedes mbed-src.
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Diff: targets/TARGET_Maxim/TARGET_MAX32630/mxc/tmr.h
- Revision:
- 157:ff67d9f36b67
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_Maxim/TARGET_MAX32630/mxc/tmr.h Thu Feb 02 17:01:33 2017 +0000 @@ -0,0 +1,611 @@ +/** + * @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 */