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/**
*********************************************************************************
*
* @file ald_tsense.c
* @brief TSENSE module driver.
*
* @version V1.0
* @date 15 Dec 2017
* @author AE Team
* @note
*
* Copyright (C) Shanghai Eastsoft Microelectronics Co. Ltd. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*********************************************************************************
*/
#include "ald_tsense.h"
#include "ald_bkpc.h"
/** @addtogroup ES32FXXX_ALD
* @{
*/
/** @defgroup TSENSE TSENSE
* @brief TSENSE module driver
* @{
*/
#ifdef ALD_TSENSE
/** @defgroup TSENSE_Private_Variables TSENSE Private Variables
* @{
*/
tsense_cbk __tsense_cbk;
/**
* @}
*/
/** @defgroup TSENSE_Public_Functions TSENSE Public Functions
* @{
*/
/** @addtogroup TSENSE_Public_Functions_Group1 Initialization functions
* @brief Initialization functions
*
* @verbatim
==============================================================================
##### Initialization functions #####
==============================================================================
[..] This section provides functions allowing to initialize the TSENSE:
(+) This parameters can be configured:
(++) Update Cycle
(++) Output Mode
(++) Perscaler
(+) Select TSENSE source clock(default LOSC)
@endverbatim
* @{
*/
/**
* @brief Initializes the TSENSE according to the specified
* @retval None
*/
void ald_tsense_init(void)
{
uint16_t tempt, temptinv;
uint32_t tscic, tscicinv;
TSENSE_UNLOCK();
TSENSE->CR = 0;
MODIFY_REG(TSENSE->CR, TSENSE_CR_CTN_MSK, 0x1 << TSENSE_CR_CTN_POS);
MODIFY_REG(TSENSE->CR, TSENSE_CR_TSU_MSK, 0x4 << TSENSE_CR_TSU_POSS);
MODIFY_REG(TSENSE->CR, TSENSE_CR_TOM_MSK, 0x3 << TSENSE_CR_TOM_POSS);
MODIFY_REG(TSENSE->PSR, TSENSE_PSR_PRS_MSK, 0x1 << TSENSE_PSR_PRS_POSS);
TSENSE->HTGR = 0x88F18;
TSENSE->LTGR = 0x85C39;
tempt = *(volatile uint16_t *)0x40348;
temptinv = *(volatile uint16_t *)0x4034A;
tscic = *(volatile uint32_t *)0x40350;
tscicinv = *(volatile uint32_t *)0x40358;
if ((tempt == (uint16_t)(~temptinv)) && (tscic == (~tscicinv))) {
TSENSE->TBDR = tempt;
TSENSE->TCALBDR = (tscic & 0x1FFFFFF) >> 6;
}
else {
TSENSE->TBDR = 0x1E00;
TSENSE->TCALBDR = 0x1FE70;
}
TSENSE_LOCK();
return;
}
/**
* @brief Configure the TSENSE source.
* @param sel: TSENSE source type.
* @retval None
*/
void ald_tsense_source_select(tsense_source_sel_t sel)
{
assert_param(IS_TSENSE_SOURCE_SEL(sel));
BKPC_UNLOCK();
MODIFY_REG(BKPC->PCCR, BKPC_PCCR_TSENSECS_MSK, sel << BKPC_PCCR_TSENSECS_POSS);
if (sel == TSENSE_SOURCE_LOSC) {
SET_BIT(BKPC->CR, BKPC_CR_LOSCEN_MSK);
}
else if (sel == TSENSE_SOURCE_LRC) {
SET_BIT(BKPC->CR, BKPC_CR_LRCEN_MSK);
}
else {
; /* do nothing */
}
BKPC_LOCK();
return;
}
/**
* @}
*/
/** @addtogroup TSENSE_Public_Functions_Group2 Peripheral Control functions
* @brief Peripheral Control functions
*
* @verbatim
==============================================================================
##### Peripheral Control functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) ald_tsense_get_value() API can get the current temperature.
(+) ald_tsense_get_value_by_it() API can get the current temperature by interrupt.
(+) ald_tsense_irq_handler() API can handle the interrupt request.
@endverbatim
* @{
*/
/**
* @brief Get the current temperature
* @param tsense: 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 ald_tsense_get_value(uint16_t *tsense)
{
uint32_t tmp = 0;
TSENSE_UNLOCK();
SET_BIT(TSENSE->IFCR, TSENSE_IFCR_TSENSE_MSK);
SET_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
while ((!(READ_BIT(TSENSE->IF, TSENSE_IF_TSENSE_MSK))) && (tmp++ < 1000000));
if (tmp >= 1000000) {
TSENSE_UNLOCK();
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return TIMEOUT;
}
TSENSE_UNLOCK();
SET_BIT(TSENSE->IFCR, TSENSE_IFCR_TSENSE_MSK);
TSENSE_LOCK();
if (READ_BIT(TSENSE->DR, TSENSE_DR_ERR_MSK)) {
TSENSE_UNLOCK();
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return ERROR;
}
*tsense = READ_BITS(TSENSE->DR, TSENSE_DR_DATA_MSK, TSENSE_DR_DATA_POSS);
TSENSE_UNLOCK();
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return OK;
}
/**
* @brief Get the current temperature by interrupt
* @param cbk: The callback function
* @retval None
*/
void ald_tsense_get_value_by_it(tsense_cbk cbk)
{
__tsense_cbk = cbk;
TSENSE_UNLOCK();
SET_BIT(TSENSE->IFCR, TSENSE_IFCR_TSENSE_MSK);
SET_BIT(TSENSE->IE, TSENSE_IE_TSENSE_MSK);
SET_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return;
}
/**
* @brief This function handles TSENSE interrupt request.
* @retval None
*/
void ald_tsense_irq_handler(void)
{
TSENSE_UNLOCK();
SET_BIT(TSENSE->IFCR, TSENSE_IFCR_TSENSE_MSK);
TSENSE_LOCK();
if (__tsense_cbk == NULL) {
TSENSE_UNLOCK();
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return;
}
if (READ_BIT(TSENSE->DR, TSENSE_DR_ERR_MSK)) {
TSENSE_UNLOCK();
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
__tsense_cbk(0, ERROR);
return;
}
__tsense_cbk(READ_BITS(TSENSE->DR, TSENSE_DR_DATA_MSK, TSENSE_DR_DATA_POSS), OK);
TSENSE_UNLOCK();
SET_BIT(TSENSE->IFCR, TSENSE_IFCR_TSENSE_MSK);
CLEAR_BIT(TSENSE->CR, TSENSE_CR_EN_MSK);
TSENSE_LOCK();
return;
}
/**
* @}
*/
/**
* @}
*/
#endif /* ALD_TSENSE */
/**
* @}
*/
/**
* @}
*/
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