mirror of
https://github.com/IcedRooibos/py32f0-template.git
synced 2025-10-31 01:42:04 -07:00
265 lines
9.8 KiB
C
265 lines
9.8 KiB
C
/**
|
|
******************************************************************************
|
|
* @file py32f0xx_ll_comp.c
|
|
* @author MCU Application Team
|
|
* @brief COMP LL module driver.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) Puya Semiconductor Co.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under BSD 3-Clause license,
|
|
* the "License"; You may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at:
|
|
* opensource.org/licenses/BSD-3-Clause
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#if defined(USE_FULL_LL_DRIVER)
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "py32f0xx_ll_comp.h"
|
|
#include "py32f0xx_ll_bus.h"
|
|
|
|
|
|
|
|
#ifdef USE_FULL_ASSERT
|
|
#include "py32_assert.h"
|
|
#else
|
|
#define assert_param(expr) ((void)0U)
|
|
#endif /* USE_FULL_ASSERT */
|
|
|
|
/** @addtogroup PY320xx_LL_Driver
|
|
* @{
|
|
*/
|
|
|
|
#if defined (COMP1) || defined (COMP2)
|
|
|
|
/** @addtogroup COMP_LL COMP
|
|
* @{
|
|
*/
|
|
|
|
/* Private types -------------------------------------------------------------*/
|
|
/* Private variables ---------------------------------------------------------*/
|
|
/* Private constants ---------------------------------------------------------*/
|
|
/* Private macros ------------------------------------------------------------*/
|
|
|
|
/** @addtogroup COMP_LL_Private_Macros
|
|
* @{
|
|
*/
|
|
|
|
/* Check of parameters for configuration of COMP hierarchical scope: */
|
|
/* COMP instance. */
|
|
|
|
#define IS_LL_COMP_POWER_MODE(__POWER_MODE__) \
|
|
( ((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED) \
|
|
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_MEDIUMSPEED) \
|
|
)
|
|
|
|
/* Note: On this PY32 series, comparator input plus parameters are */
|
|
/* the same on all COMP instances. */
|
|
/* However, comparator instance kept as macro parameter for */
|
|
/* compatibility with other PY32 families. */
|
|
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
|
|
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|
|
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) \
|
|
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO3) \
|
|
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO4) \
|
|
)
|
|
|
|
/* Note: On this PY32 series, comparator input minus parameters are */
|
|
/* the same on all COMP instances. */
|
|
/* However, comparator instance kept as macro parameter for */
|
|
/* compatibility with other PY32 families. */
|
|
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
|
|
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VCC) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_TS) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|
|
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO3) \
|
|
)
|
|
|
|
#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__) \
|
|
( ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_DISABLE) \
|
|
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_ENABLE) \
|
|
)
|
|
|
|
#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__) \
|
|
( ((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED) \
|
|
|| ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED) \
|
|
)
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
|
|
/* Exported functions --------------------------------------------------------*/
|
|
/** @addtogroup COMP_LL_Exported_Functions
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup COMP_LL_EF_Init
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief De-initialize registers of the selected COMP instance
|
|
* to their default reset values.
|
|
* @note If comparator is locked, de-initialization by software is
|
|
* not possible.
|
|
* The only way to unlock the comparator is a device hardware reset.
|
|
* @param COMPx COMP instance
|
|
* @retval An ErrorStatus enumeration value:
|
|
* - SUCCESS: COMP registers are de-initialized
|
|
* - ERROR: COMP registers are not de-initialized
|
|
*/
|
|
ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
|
|
{
|
|
ErrorStatus status = SUCCESS;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
|
|
|
|
/* Note: Hardware constraint (refer to description of this function): */
|
|
/* COMP instance must not be locked. */
|
|
/* Note: If Deint the COMP1, The HYST and SCALER_EN of COMP2 will be cleared together */
|
|
|
|
if (LL_COMP_IsLocked(COMPx) == 0U)
|
|
{
|
|
LL_COMP_WriteReg(COMPx, CSR, 0x00000000U);
|
|
LL_COMP_WriteReg(COMPx, FR, 0x00000000U);
|
|
}
|
|
else
|
|
{
|
|
/* Comparator instance is locked: de-initialization by software is */
|
|
/* not possible. */
|
|
/* The only way to unlock the comparator is a device hardware reset. */
|
|
status = ERROR;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Initialize some features of COMP instance.
|
|
* @note This function configures features of the selected COMP instance.
|
|
* Some features are also available at scope COMP common instance
|
|
* (common to several COMP instances).
|
|
* Refer to functions having argument "COMPxy_COMMON" as parameter.
|
|
* @param COMPx COMP instance
|
|
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
|
|
* @retval An ErrorStatus enumeration value:
|
|
* - SUCCESS: COMP registers are initialized
|
|
* - ERROR: COMP registers are not initialized
|
|
*/
|
|
ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, LL_COMP_InitTypeDef *COMP_InitStruct)
|
|
{
|
|
ErrorStatus status = SUCCESS;
|
|
|
|
/* Check the parameters */
|
|
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
|
|
assert_param(IS_LL_COMP_POWER_MODE(COMP_InitStruct->PowerMode));
|
|
assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
|
|
assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
|
|
assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
|
|
assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
|
|
|
|
/* Note: Hardware constraint (refer to description of this function) */
|
|
/* COMP instance must not be locked. */
|
|
if (LL_COMP_IsLocked(COMPx) == 0U)
|
|
{
|
|
/* Configuration of comparator instance : */
|
|
/* - PowerMode */
|
|
/* - InputPlus */
|
|
/* - InputMinus */
|
|
/* - OutputPolarity */
|
|
MODIFY_REG(COMPx->CSR,
|
|
COMP_CSR_PWRMODE
|
|
| COMP_CSR_INPSEL
|
|
| COMP_CSR_INMSEL
|
|
| COMP_CSR_POLARITY
|
|
,
|
|
COMP_InitStruct->PowerMode
|
|
| COMP_InitStruct->InputPlus
|
|
| COMP_InitStruct->InputMinus
|
|
| COMP_InitStruct->OutputPolarity
|
|
);
|
|
/* Set comparator hysteresis mode */
|
|
MODIFY_REG(COMP12_COMMON->CSR_ODD, COMP_CSR_HYST,COMP_InitStruct->InputHysteresis);
|
|
|
|
/* Set Vrefint Scaler Enable */
|
|
if ((COMP_InitStruct->InputMinus==LL_COMP_INPUT_MINUS_1_4VREFINT)||(COMP_InitStruct->InputMinus==LL_COMP_INPUT_MINUS_1_2VREFINT)
|
|
||(COMP_InitStruct->InputMinus==LL_COMP_INPUT_MINUS_3_4VREFINT)||(COMP_InitStruct->InputMinus==LL_COMP_INPUT_MINUS_VREFINT))
|
|
{
|
|
SET_BIT(COMP12_COMMON->CSR_ODD, COMP_CSR_SCALER_EN);
|
|
}
|
|
if (COMP_InitStruct->DigitalFilter == 0)
|
|
{
|
|
/* Disable digital filter */
|
|
CLEAR_BIT(COMPx->FR, COMP_FR_FLTEN);
|
|
}
|
|
else
|
|
{
|
|
WRITE_REG(COMPx->FR, (COMP_FR_FLTEN | (COMP_InitStruct->DigitalFilter << COMP_FR_FLTCNT_Pos)));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Initialization error: COMP instance is locked. */
|
|
status = ERROR;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Set each @ref LL_COMP_InitTypeDef field to default value.
|
|
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
|
|
* whose fields will be set to default values.
|
|
* @retval None
|
|
*/
|
|
void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
|
|
{
|
|
/* Set COMP_InitStruct fields to default values */
|
|
COMP_InitStruct->PowerMode = LL_COMP_POWERMODE_MEDIUMSPEED;
|
|
COMP_InitStruct->InputPlus = LL_COMP_INPUT_PLUS_IO1;
|
|
COMP_InitStruct->InputMinus = LL_COMP_INPUT_MINUS_VREFINT;
|
|
COMP_InitStruct->InputHysteresis = LL_COMP_HYSTERESIS_DISABLE;
|
|
COMP_InitStruct->OutputPolarity = LL_COMP_OUTPUTPOL_NONINVERTED;
|
|
COMP_InitStruct->DigitalFilter = 0;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* COMP1 || COMP2 */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* USE_FULL_LL_DRIVER */
|
|
|
|
|
|
/************************ (C) COPYRIGHT Puya *****END OF FILE****/
|