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/**
*********************************************************************************
*
* @file ald_temp.c
* @brief TEMP module driver.
*
* @version V1.0
* @date 15 Dec 2017
* @author AE Team
* @note
*
* Copyright (C) Shanghai Eastsoft Microelectronics Co. Ltd. All rights reserved.
*
*********************************************************************************
*/
#include "ald_temp.h"
#include "ald_bkpc.h"
/** @addtogroup ES32FXXX_ALD
* @{
*/
/** @defgroup TEMP TEMP
* @brief TEMP module driver
* @{
*/
#ifdef ALD_TEMP
/** @defgroup TEMP_Private_Variables TEMP Private Variables
* @{
*/
temp_cbk __temp_cbk;
/**
* @}
*/
/** @defgroup TEMP_Public_Functions TEMP Public Functions
* @{
*/
/** @addtogroup TEMP_Public_Functions_Group1 Initialization functions
* @brief Initialization functions
*
* @verbatim
==============================================================================
##### Initialization functions #####
==============================================================================
[..] This section provides functions allowing to initialize the TEMP:
(+) This parameters can be configured:
(++) Update Cycle
(++) Output Mode
(++) Perscaler
(+) Select TEMP source clock(default LOSC)
@endverbatim
* @{
*/
/**
* @brief Initializes the TEMP according to the specified
* parameters in the temp_init_t.
* @param init: Pointer to a temp_init_t structure that contains
* the configuration information.
* @retval None
*/
void temp_init(temp_init_t *init)
{
assert_param(IS_TEMP_UPDATE_CYCLE(init->cycle));
assert_param(IS_TEMP_OUTPUT_MODE(init->mode));
TEMP_UNLOCK();
MODIFY_REG(TEMP->CR, TEMP_CR_TSU_MSK, init->cycle << TEMP_CR_TSU_POSS);
MODIFY_REG(TEMP->CR, TEMP_CR_TOM_MSK, init->mode << TEMP_CR_TOM_POSS);
MODIFY_REG(TEMP->CR, TEMP_CR_CTN_MSK, init->ctn << TEMP_CR_CTN_POS);
MODIFY_REG(TEMP->PSR, TEMP_PSR_PRS_MSK, init->psc << TEMP_PSR_PRS_POSS);
TEMP_LOCK();
return;
}
/**
* @brief Configure the TEMP source.
* @param sel: TEMP source type.
* @retval None
*/
void temp_source_selcet(temp_source_sel_t sel)
{
assert_param(IS_TEMP_SOURCE_SEL(sel));
BKPC_UNLOCK();
MODIFY_REG(BKPC->PCCR, BKPC_PCCR_TEMPCS_MSK, sel << BKPC_PCCR_TEMPCS_POSS);
if (sel == TEMP_SOURCE_LOSC) {
SET_BIT(BKPC->CR, BKPC_CR_LOSCEN_MSK);
}
else if (sel == TEMP_SOURCE_LRC) {
SET_BIT(BKPC->CR, BKPC_CR_LRCEN_MSK);
}
else {
; /* do nothing */
}
BKPC_LOCK();
return;
}
/**
* @}
*/
/** @addtogroup TEMP_Public_Functions_Group2 Peripheral Control functions
* @brief Peripheral Control functions
*
* @verbatim
==============================================================================
##### Peripheral Control functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) temp_get_value() API can get the current temperature.
(+) temp_get_value_by_it() API can get the current temperature by interrupt.
(+) temp_irq_handle() API can handle the interrupt request.
@endverbatim
* @{
*/
/**
* @brief Get the current temperature
* @param temp: The value of current temperature.
* @retval ALD status:
* @arg @ref OK The value is valid
* @arg @ref ERROR The value is invalid
*/
ald_status_t temp_get_value(uint16_t *temp)
{
TEMP_UNLOCK();
SET_BIT(TEMP->IFCR, TEMP_IFCR_TEMP_MSK);
SET_BIT(TEMP->CR, TEMP_CR_EN_MSK);
TEMP_LOCK();
while (!(READ_BIT(TEMP->IF, TEMP_IF_TEMP_MSK)));
TEMP_UNLOCK();
SET_BIT(TEMP->IFCR, TEMP_IFCR_TEMP_MSK);
TEMP_LOCK();
if (READ_BIT(TEMP->DR, TEMP_DR_ERR_MSK))
return ERROR;
*temp = READ_BITS(TEMP->DR, TEMP_DR_DATA_MSK, TEMP_DR_DATA_POSS);
return OK;
}
/**
* @brief Get the current temperature by interrupt
* @param cbk: The callback function
* @retval None
*/
void temp_get_value_by_it(temp_cbk cbk)
{
__temp_cbk = cbk;
TEMP_UNLOCK();
SET_BIT(TEMP->IFCR, TEMP_IFCR_TEMP_MSK);
SET_BIT(TEMP->IE, TEMP_IE_TEMP_MSK);
SET_BIT(TEMP->CR, TEMP_CR_EN_MSK);
TEMP_LOCK();
return;
}
/**
* @brief This function handles TEMP interrupt request.
* @retval None
*/
void temp_irq_handle(void)
{
TEMP_UNLOCK();
SET_BIT(TEMP->IFCR, TEMP_IFCR_TEMP_MSK);
TEMP_LOCK();
if (__temp_cbk == NULL)
return;
if (READ_BIT(TEMP->DR, TEMP_DR_ERR_MSK)) {
__temp_cbk(0, ERROR);
return;
}
__temp_cbk(READ_BITS(TEMP->DR, TEMP_DR_DATA_MSK, TEMP_DR_DATA_POSS), OK);
return;
}
/**
* @}
*/
/**
* @}
*/
#endif /* ALD_TEMP */
/**
* @}
*/
/**
* @}
*/
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