You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
266 lines
9.4 KiB
266 lines
9.4 KiB
5 months ago
|
/**
|
||
|
|
* @file tmr.h
|
||
|
|
* @brief Timer (TMR) function prototypes and data types.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* ****************************************************************************
|
||
|
|
* 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: 2019-09-11 14:32:22 -0500 (Wed, 11 Sep 2019) $
|
||
|
|
* $Revision: 46047 $
|
||
|
|
*
|
||
|
|
*************************************************************************** */
|
||
|
|
|
||
|
|
/* Define to prevent redundant inclusion */
|
||
|
|
#ifndef _TMR_H_
|
||
|
|
#define _TMR_H_
|
||
|
|
|
||
|
|
/* **** Includes **** */
|
||
|
|
#include "mxc_config.h"
|
||
|
|
#include "tmr_regs.h"
|
||
|
|
#include "mxc_sys.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @defgroup tmr Timer (TMR)
|
||
|
|
* @ingroup periphlibs
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Timer prescaler values
|
||
|
|
*/
|
||
|
|
typedef enum {
|
||
|
|
TMR_PRES_1 = MXC_S_TMR_CN_PRES_DIV1, /// Divide input clock by 1
|
||
|
|
TMR_PRES_2 = MXC_S_TMR_CN_PRES_DIV2, /// Divide input clock by 2
|
||
|
|
TMR_PRES_4 = MXC_S_TMR_CN_PRES_DIV4, /// Divide input clock by 4
|
||
|
|
TMR_PRES_8 = MXC_S_TMR_CN_PRES_DIV8, /// Divide input clock by 8
|
||
|
|
TMR_PRES_16 = MXC_S_TMR_CN_PRES_DIV16, /// Divide input clock by 16
|
||
|
|
TMR_PRES_32 = MXC_S_TMR_CN_PRES_DIV32, /// Divide input clock by 32
|
||
|
|
TMR_PRES_64 = MXC_S_TMR_CN_PRES_DIV64, /// Divide input clock by 64
|
||
|
|
TMR_PRES_128 = MXC_S_TMR_CN_PRES_DIV128, /// Divide input clock by 128
|
||
|
|
TMR_PRES_256 = MXC_F_TMR_CN_PRES3 | MXC_S_TMR_CN_PRES_DIV1, /// Divide input clock by 256
|
||
|
|
TMR_PRES_512 = MXC_F_TMR_CN_PRES3 | MXC_S_TMR_CN_PRES_DIV2, /// Divide input clock by 512
|
||
|
|
TMR_PRES_1024 = MXC_F_TMR_CN_PRES3 | MXC_S_TMR_CN_PRES_DIV4, /// Divide input clock by 1024
|
||
|
|
TMR_PRES_2048 = MXC_F_TMR_CN_PRES3 | MXC_S_TMR_CN_PRES_DIV8, /// Divide input clock by 2048
|
||
|
|
TMR_PRES_4096 = MXC_F_TMR_CN_PRES3 | MXC_S_TMR_CN_PRES_DIV16 /// Divide input clock by 4096
|
||
|
|
} tmr_pres_t;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Timer modes
|
||
|
|
*/
|
||
|
|
typedef enum {
|
||
|
|
TMR_MODE_ONESHOT = MXC_V_TMR_CN_TMODE_ONESHOT, /// Timer Mode ONESHOT
|
||
|
|
TMR_MODE_CONTINUOUS = MXC_V_TMR_CN_TMODE_CONTINUOUS, /// Timer Mode CONTINUOUS
|
||
|
|
TMR_MODE_COUNTER = MXC_V_TMR_CN_TMODE_COUNTER, /// Timer Mode COUNTER
|
||
|
|
TMR_MODE_PWM = MXC_V_TMR_CN_TMODE_PWM, /// Timer Mode PWM
|
||
|
|
TMR_MODE_CAPTURE = MXC_V_TMR_CN_TMODE_CAPTURE, /// Timer Mode CAPTURE
|
||
|
|
TMR_MODE_COMPARE = MXC_V_TMR_CN_TMODE_COMPARE, /// Timer Mode COMPARE
|
||
|
|
TMR_MODE_GATED = MXC_V_TMR_CN_TMODE_GATED, /// Timer Mode GATED
|
||
|
|
TMR_MODE_CAPTURE_COMPARE = MXC_V_TMR_CN_TMODE_CAPTURECOMPARE /// Timer Mode CAPTURECOMPARE
|
||
|
|
} tmr_mode_t;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Timer units of time enumeration
|
||
|
|
*/
|
||
|
|
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;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Timer Configuration
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
tmr_mode_t mode; /// Desired timer mode
|
||
|
|
uint32_t cmp_cnt; /// Compare register value in timer ticks
|
||
|
|
unsigned pol; /// Polarity (0 or 1)
|
||
|
|
} tmr_cfg_t;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Timer PWM Configuration
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
unsigned pol; /// PWM polarity (0 or 1)
|
||
|
|
uint32_t per_cnt; /// PWM period in timer ticks
|
||
|
|
uint32_t duty_cnt; /// PWM duty in timer ticks
|
||
|
|
} tmr_pwm_cfg_t;
|
||
|
|
|
||
|
|
/* **** Definitions **** */
|
||
|
|
|
||
|
|
/* **** Function Prototypes **** */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initialize timer module clock.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param pres Prescaler value.
|
||
|
|
* @param sys_cfg System configuration object
|
||
|
|
* @return #E_NO_ERROR if successful, error code otherwise.
|
||
|
|
*/
|
||
|
|
int TMR_Init(mxc_tmr_regs_t *tmr, tmr_pres_t pres, const sys_cfg_tmr_t* sys_cfg);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Shutdown timer module clock.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @return #E_NO_ERROR if successful, error code otherwise.
|
||
|
|
*/
|
||
|
|
int TMR_Shutdown(mxc_tmr_regs_t *tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Enable the timer.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
*/
|
||
|
|
void TMR_Enable(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Disable the timer.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
*/
|
||
|
|
void TMR_Disable(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Configure the timer.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param cfg Pointer to timer configuration struct.
|
||
|
|
* @return #E_NO_ERROR if successful.
|
||
|
|
*/
|
||
|
|
int TMR_Config(mxc_tmr_regs_t *tmr, const tmr_cfg_t *cfg);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Configure the timer for PWM operation.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param cfg Pointer to timer PWM configuration struct.
|
||
|
|
* @note Can cause a glitch if the Timer is currently running.
|
||
|
|
* @return #E_BAD_PARAM if duty_cnt > per_cnt.
|
||
|
|
*/
|
||
|
|
int TMR_PWMConfig(mxc_tmr_regs_t *tmr, const tmr_pwm_cfg_t *cfg);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set the timer duty cycle.
|
||
|
|
* @param tmr Pointer to timer module to initialize
|
||
|
|
* @param duty New duty cycle count
|
||
|
|
* @note Will block until safe to change the duty count.
|
||
|
|
* @return #E_BAD_PARAM if duty_cnt > per_cnt.
|
||
|
|
*/
|
||
|
|
int TMR_PWMSetDuty(mxc_tmr_regs_t *tmr, uint32_t duty);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set the timer period.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param per New period count.
|
||
|
|
* @note Will block until safe to change the period count.
|
||
|
|
* @return #E_BAD_PARAM if duty_cnt > per_cnt.
|
||
|
|
*/
|
||
|
|
int TMR_PWMSetPeriod(mxc_tmr_regs_t* tmr, uint32_t per);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Get the timer compare count.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @return Returns the current compare count.
|
||
|
|
*/
|
||
|
|
uint32_t TMR_GetCompare(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Get the timer capture count.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @return Returns the most recent capture count.
|
||
|
|
*/
|
||
|
|
uint32_t TMR_GetCapture(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Get the timer count.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @return Returns the current count.
|
||
|
|
*/
|
||
|
|
uint32_t TMR_GetCount(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Clear the timer interrupt.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
*/
|
||
|
|
void TMR_IntClear(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Get the timer interrupt status.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @return Returns the interrupt status. 1 if interrupt has occurred.
|
||
|
|
*/
|
||
|
|
uint32_t TMR_IntStatus(mxc_tmr_regs_t* tmr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set the timer compare count.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param cmp_cnt New compare count.
|
||
|
|
* @note This function does not protect against output glitches in PWM mode.
|
||
|
|
* Use TMR_PWMSetPeriod when in PWM mode.
|
||
|
|
*/
|
||
|
|
void TMR_SetCompare(mxc_tmr_regs_t *tmr, uint32_t cmp_cnt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set the timer count.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param cnt New count.
|
||
|
|
*/
|
||
|
|
void TMR_SetCount(mxc_tmr_regs_t *tmr, uint32_t cnt);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Convert real time to timer ticks.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param time Number of units of time.
|
||
|
|
* @param units Which units of time you want to convert.
|
||
|
|
* @param ticks Pointer to store the number of ticks calculated.
|
||
|
|
* @return #E_NO_ERROR if successful, error code otherwise.
|
||
|
|
*/
|
||
|
|
int TMR_GetTicks(mxc_tmr_regs_t *tmr, uint32_t time, tmr_unit_t units, uint32_t *ticks);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Convert timer ticks to real time.
|
||
|
|
* @param tmr Pointer to timer module to initialize.
|
||
|
|
* @param ticks Number of ticks.
|
||
|
|
* @param time Pointer to store number of units of time.
|
||
|
|
* @param units Pointer to store the units that time represents.
|
||
|
|
* @return #E_NO_ERROR if successful, error code otherwise.
|
||
|
|
*/
|
||
|
|
int TMR_GetTime(mxc_tmr_regs_t *tmr, uint32_t ticks, uint32_t *time, tmr_unit_t *units);
|
||
|
|
|
||
|
|
/**@} end of group tmr */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _TMR_H_ */
|