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This is the progress that I had made before putting this project on GitHub
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Merrick 2019-11-08 00:28:18 -05:00
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Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_lptim.c Normal file
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/**
******************************************************************************
* @file stm32f4xx_ll_lptim.c
* @author MCD Application Team
* @brief LPTIM LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_lptim.h"
#include "stm32f4xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32F4xx_LL_Driver
* @{
*/
#if defined (LPTIM1) || defined (LPTIM2)
/** @addtogroup LPTIM_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup LPTIM_LL_Private_Macros
* @{
*/
#define IS_LPTIM_CLOCK_SOURCE(__VALUE__) (((__VALUE__) == LL_LPTIM_CLK_SOURCE_INTERNAL) \
|| ((__VALUE__) == LL_LPTIM_CLK_SOURCE_EXTERNAL))
#define IS_LPTIM_CLOCK_PRESCALER(__VALUE__) (((__VALUE__) == LL_LPTIM_PRESCALER_DIV1) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV2) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV4) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV8) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV16) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV32) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV64) \
|| ((__VALUE__) == LL_LPTIM_PRESCALER_DIV128))
#define IS_LPTIM_WAVEFORM(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_PWM) \
|| ((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_SETONCE))
#define IS_LPTIM_OUTPUT_POLARITY(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_REGULAR) \
|| ((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_INVERSE))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup LPTIM_LL_Exported_Functions
* @{
*/
/** @addtogroup LPTIM_LL_EF_Init
* @{
*/
/**
* @brief Set LPTIMx registers to their reset values.
* @param LPTIMx LP Timer instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: LPTIMx registers are de-initialized
* - ERROR: invalid LPTIMx instance
*/
ErrorStatus LL_LPTIM_DeInit(LPTIM_TypeDef* LPTIMx)
{
ErrorStatus result = SUCCESS;
/* Check the parameters */
assert_param(IS_LPTIM_INSTANCE(LPTIMx));
if (LPTIMx == LPTIM1)
{
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM1);
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM1);
}
#if defined(LPTIM2)
else if (LPTIMx == LPTIM2)
{
LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_LPTIM2);
LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_LPTIM2);
}
#endif
else
{
result = ERROR;
}
return result;
}
/**
* @brief Set each fields of the LPTIM_InitStruct structure to its default
* value.
* @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
* @retval None
*/
void LL_LPTIM_StructInit(LL_LPTIM_InitTypeDef* LPTIM_InitStruct)
{
/* Set the default configuration */
LPTIM_InitStruct->ClockSource = LL_LPTIM_CLK_SOURCE_INTERNAL;
LPTIM_InitStruct->Prescaler = LL_LPTIM_PRESCALER_DIV1;
LPTIM_InitStruct->Waveform = LL_LPTIM_OUTPUT_WAVEFORM_PWM;
LPTIM_InitStruct->Polarity = LL_LPTIM_OUTPUT_POLARITY_REGULAR;
}
/**
* @brief Configure the LPTIMx peripheral according to the specified parameters.
* @note LL_LPTIM_Init can only be called when the LPTIM instance is disabled.
* @note LPTIMx can be disabled using unitary function @ref LL_LPTIM_Disable().
* @param LPTIMx LP Timer Instance
* @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
* @retval An ErrorStatus enumeration value:
* - SUCCESS: LPTIMx instance has been initialized
* - ERROR: LPTIMx instance hasn't been initialized
*/
ErrorStatus LL_LPTIM_Init(LPTIM_TypeDef * LPTIMx, LL_LPTIM_InitTypeDef* LPTIM_InitStruct)
{
ErrorStatus result = SUCCESS;
/* The LPTIMx_CFGR register must only be modified when the LPTIM is disabled
(ENABLE bit is reset to 0).
*/
if (LL_LPTIM_IsEnabled(LPTIMx))
{
result = ERROR;
}
else
{
/* Check the parameters */
assert_param(IS_LPTIM_INSTANCE(LPTIMx));
assert_param(IS_LPTIM_CLOCK_SOURCE(LPTIM_InitStruct->ClockSource));
assert_param(IS_LPTIM_CLOCK_PRESCALER(LPTIM_InitStruct->Prescaler));
assert_param(IS_LPTIM_WAVEFORM(LPTIM_InitStruct->Waveform));
assert_param(IS_LPTIM_OUTPUT_POLARITY(LPTIM_InitStruct->Polarity));
/* Set CKSEL bitfield according to ClockSource value */
/* Set PRESC bitfield according to Prescaler value */
/* Set WAVE bitfield according to Waveform value */
/* Set WAVEPOL bitfield according to Polarity value */
MODIFY_REG(LPTIMx->CFGR,
(LPTIM_CFGR_CKSEL | LPTIM_CFGR_PRESC | LPTIM_CFGR_WAVE| LPTIM_CFGR_WAVPOL),
LPTIM_InitStruct->ClockSource | \
LPTIM_InitStruct->Prescaler | \
LPTIM_InitStruct->Waveform | \
LPTIM_InitStruct->Polarity);
}
return result;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined (LPTIM1) || defined (LPTIM2) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/