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/**
**************************************************************************
* @file at32f421_cmp.h
* @brief at32f421 cmp header file
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
/* define to prevent recursive inclusion -------------------------------------*/
#ifndef __AT32F421_CMP_H
#define __AT32F421_CMP_H
#ifdef __cplusplus
extern "C" {
#endif
/* includes ------------------------------------------------------------------*/
#include "at32f421.h"
/** @addtogroup AT32F421_periph_driver
* @{
*/
/** @addtogroup CMP
* @{
*/
/** @defgroup CMP_exported_types
* @{
*/
/**
* @brief cmp non-inverting type
*/
typedef enum
{
CMP_NON_INVERTING_PA5 = 0x00, /*!< comparator non-inverting connect to pa5 */
CMP_NON_INVERTING_PA1 = 0x01, /*!< comparator non-inverting connect to pa1 */
CMP_NON_INVERTING_PA0 = 0x02, /*!< comparator non-inverting connect to pa0 */
CMP_NON_INVERTING_VSSA = 0x03 /*!< comparator non-inverting connect to vssa */
} cmp_non_inverting_type;
/**
* @brief cmp inverting type
*/
typedef enum
{
CMP_INVERTING_1_4VREFINT = 0x00, /*!< comparator inverting connect to 1_4vrefint */
CMP_INVERTING_1_2VREFINT = 0x01, /*!< comparator inverting connect to 1_2vrefint */
CMP_INVERTING_3_4VREFINT = 0x02, /*!< comparator inverting connect to 3_4vrefint */
CMP_INVERTING_VREFINT = 0x03, /*!< comparator inverting connect to vrefint */
CMP_INVERTING_PA4 = 0x04, /*!< comparator inverting connect to pa4 */
CMP_INVERTING_PA5 = 0x05, /*!< comparator inverting connect to pa5 */
CMP_INVERTING_PA0 = 0x06, /*!< comparator inverting connect to pa0 */
CMP_INVERTING_PA2 = 0x07 /*!< comparator inverting connect to pa2 */
} cmp_inverting_type;
/**
* @brief cmp speed type
*/
typedef enum
{
CMP_SPEED_FAST = 0x00, /*!< comparator selected fast speed */
CMP_SPEED_MEDIUM = 0x01, /*!< comparator selected medium speed */
CMP_SPEED_SLOW = 0x02, /*!< comparator selected slow speed */
CMP_SPEED_ULTRALOW = 0x03 /*!< comparator selected ultralow speed */
} cmp_speed_type;
/**
* @brief cmp output type
*/
typedef enum
{
CMP_OUTPUT_NONE = 0x00, /*!< comparator has no output */
CMP_OUTPUT_TMR1BRK = 0x01, /*!< comparator output connect to tmr1brk */
CMP_OUTPUT_TMR1CH1 = 0x02, /*!< comparator output connect to tmr1ch1 */
CMP_OUTPUT_TMR1CHCLR = 0x03, /*!< comparator output connect to tmr1chclr */
CMP_OUTPUT_TMR3CH1 = 0x06, /*!< comparator output connect to tmr3ch1 */
CMP_OUTPUT_TMR3CHCLR = 0x07 /*!< comparator output connect to tmr3chclr */
} cmp_output_type;
/**
* @brief cmp polarity type
*/
typedef enum
{
CMP_POL_NON_INVERTING = 0x00, /*!< comparator polarity non-inverting */
CMP_POL_INVERTING = 0x01, /*!< comparator polarity inverting */
} cmp_polarity_type;
/**
* @brief cmp hysteresis type
*/
typedef enum
{
CMP_HYSTERESIS_NONE = 0x00, /*!< comparator selected no hysteresis */
CMP_HYSTERESIS_LOW = 0x01, /*!< comparator selected low hysteresis */
CMP_HYSTERESIS_MEDIUM = 0x02, /*!< comparator selected medium hysteresis */
CMP_HYSTERESIS_HIGH = 0x03 /*!< comparator selected high hysteresis */
} cmp_hysteresis_type;
/**
* @brief cmp blanking type
*/
typedef enum
{
CMP_BLANKING_NONE = 0x00, /*!< comparator no blanking */
CMP_BLANKING_TMR1_CH4 = 0x01, /*!< comparator selected tmr1 ch4 as blanking */
CMP_BLANKING_TMR3_CH3 = 0x03, /*!< comparator selected tmr3 ch3 as blanking */
CMP_BLANKING_TMR15_CH2 = 0x04, /*!< comparator selected tmr15 ch2 as blanking */
CMP_BLANKING_TMR15_CH1 = 0x06 /*!< comparator selected tmr15 ch1 as blanking */
} cmp_blanking_type;
/**
* @brief cmp scale voltage and voltage bridge type
*/
typedef enum
{
CMP_SCAL_BRG_00 = 0x00, /*!< comparator selected vrefint = 3/4 vrefint = 1/2 vrefint = 1/4 vrefint = 0v */
CMP_SCAL_BRG_10 = 0x02, /*!< comparator selected vrefint = 3/4 vrefint = 1/2 vrefint = 1/4 vrefint = 1.2v */
CMP_SCAL_BRG_11 = 0x03 /*!< comparator selected vrefint = 1.2v, 3/4 vrefint = 0.9v, 1/2 vrefint = 0.6v, 1/4 vrefint = 0.3v */
} cmp_scal_brg_type;
/**
* @brief cmp selection type
*/
typedef enum
{
CMP1_SELECTION = 0x00, /*!< select comparator 1 */
} cmp_sel_type;
/**
* @brief cmp init type
*/
typedef struct
{
cmp_non_inverting_type cmp_non_inverting; /*!< comparator non-inverting input selection */
cmp_inverting_type cmp_inverting; /*!< comparator inverting selection */
cmp_speed_type cmp_speed; /*!< comparator speed selection */
cmp_output_type cmp_output; /*!< comparator output target selection */
cmp_polarity_type cmp_polarity; /*!< comparator polarity selection */
cmp_hysteresis_type cmp_hysteresis; /*!< comparator hysteresis selection */
}cmp_init_type;
/**
* @brief type define cmp register all
*/
typedef struct
{
/**
* @brief cmp control and status register, offset:0x1C
*/
union
{
__IO uint32_t ctrlsts;
struct
{
__IO uint32_t cmpen : 1; /* [0] */
__IO uint32_t cmpis : 1; /* [1] */
__IO uint32_t cmpssel : 2; /* [3:2] */
__IO uint32_t cmpinvsel : 3; /* [6:4] */
__IO uint32_t cmpninvsel : 2; /* [8:7] */
__IO uint32_t reserved1 : 1; /* [9] */
__IO uint32_t cmptag : 3; /* [12:10] */
__IO uint32_t reserved2 : 2; /* [14:13] */
__IO uint32_t cmpp : 1; /* [15] */
__IO uint32_t cmphyst : 2; /* [17:16] */
__IO uint32_t cmpblanking : 3; /* [20:18] */
__IO uint32_t reserved3 : 1; /* [21] */
__IO uint32_t brgen : 1; /* [22] */
__IO uint32_t scalen : 1; /* [23] */
__IO uint32_t reserved4 : 6; /* [29:24] */
__IO uint32_t cmpvalue : 1; /* [30] */
__IO uint32_t cmpwp : 1; /* [31] */
} ctrlsts_bit;
};
/**
* @brief crm reserved1 register, offset:0x20
*/
__IO uint32_t reserved1;
/**
* @brief cmp Glitch filter enable register, offset:0x24
*/
union
{
__IO uint32_t g_filter_en;
struct
{
__IO uint32_t gfe : 1; /* [0] */
__IO uint32_t reserved1 : 31;/* [31:1] */
} g_filter_en_bit;
};
/**
* @brief cmp high pulse count register, offset:0x28
*/
union
{
__IO uint32_t high_pulse;
struct
{
__IO uint32_t h_pulse_cnt : 6; /* [5:0] */
__IO uint32_t reserved1 : 26;/* [31:6] */
} high_pulse_bit;
};
/**
* @brief cmp low pulse count register, offset:0x2C
*/
union
{
__IO uint32_t low_pulse;
struct
{
__IO uint32_t l_pulse_cnt : 6; /* [5:0] */
__IO uint32_t reserved1 : 26;/* [31:6] */
} low_pulse_bit;
};
} cmp_type;
/**
* @}
*/
#define CMP ((cmp_type *) (SCFG_CMP_BASE + 0x1C))
/** @defgroup CMP_exported_functions
* @{
*/
void cmp_reset(void);
void cmp_init(cmp_sel_type cmp_sel, cmp_init_type* cmp_init_struct);
void cmp_default_para_init(cmp_init_type *cmp_init_struct);
void cmp_enable(cmp_sel_type cmp_sel, confirm_state new_state);
void cmp_input_shift_enable(confirm_state new_state);
uint32_t cmp_output_value_get(cmp_sel_type cmp_sel);
void cmp_write_protect_enable(cmp_sel_type cmp_sel);
void cmp_filter_config(uint16_t high_pulse_cnt, uint16_t low_pulse_cnt, confirm_state new_state);
void cmp_blanking_config(cmp_blanking_type blank_sel);
void cmp_scal_brg_config(uint32_t scal_brg);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif
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