210 lines
8.1 KiB
C
210 lines
8.1 KiB
C
/**************************************************************************//**
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* @file nu_opa.h
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* @version V3.00
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* @brief M480 series OPA driver header file
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*
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* SPDX-License-Identifier: Apache-2.0
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* @copyright (C) 2016-2020 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __NU_OPA_H__
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#define __NU_OPA_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup Standard_Driver Standard Driver
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@{
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*/
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/** @addtogroup OPA_Driver OPA Driver
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@{
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*/
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/** @addtogroup OPA_EXPORTED_CONSTANTS OPA Exported Constants
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@{
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*/
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#define OPA_CALIBRATION_CLK_1K (0UL) /*!< OPA calibration clock select 1 KHz \hideinitializer */
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#define OPA_CALIBRATION_RV_1_2_AVDD (0UL) /*!< OPA calibration reference voltage select 1/2 AVDD \hideinitializer */
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#define OPA_CALIBRATION_RV_H_L_VCM (1UL) /*!< OPA calibration reference voltage select from high vcm to low vcm \hideinitializer */
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/*@}*/ /* end of group OPA_EXPORTED_CONSTANTS */
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/** @addtogroup OPA_EXPORTED_FUNCTIONS OPA Exported Functions
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* Define OPA functions prototype */
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/*---------------------------------------------------------------------------------------------------------*/
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__STATIC_INLINE int32_t OPA_Calibration(OPA_T *opa, uint32_t u32OpaNum, uint32_t u32ClockSel, uint32_t u32LevelSel);
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/**
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* @brief This macro is used to power on the OPA circuit
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will set OPx_EN (x=0, 1) bit of OPACR register to power on the OPA circuit.
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* @note Remember to enable HIRC clock while power on the OPA circuit.
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* \hideinitializer
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*/
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#define OPA_POWER_ON(opa, u32OpaNum) ((opa)->CTL |= (1UL<<(OPA_CTL_OPEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to power down the OPA circuit
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will clear OPx_EN (x=0, 1) bit of OPACR register to power down the OPA circuit.
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* \hideinitializer
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*/
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#define OPA_POWER_DOWN(opa, u32OpaNum) ((opa)->CTL &= ~(1UL<<(OPA_CTL_OPEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to enable the OPA Schmitt trigger buffer
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will set OPSCHx_EN (x=0, 1) bit of OPACR register to enable the OPA Schmitt trigger buffer.
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* \hideinitializer
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*/
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#define OPA_ENABLE_SCH_TRIGGER(opa, u32OpaNum) ((opa)->CTL |= (1UL<<(OPA_CTL_OPDOEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to disable the OPA Schmitt trigger buffer
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will clear OPSCHx_EN (x=0, 1) bit of OPACR register to disable the OPA Schmitt trigger buffer.
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* \hideinitializer
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*/
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#define OPA_DISABLE_SCH_TRIGGER(opa, u32OpaNum) ((opa)->CTL &= ~(1UL<<(OPA_CTL_OPDOEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to enable OPA Schmitt trigger digital output interrupt
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will set OPDIEx (x=0, 1) bit of OPACR register to enable the OPA Schmitt trigger digital output interrupt.
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* \hideinitializer
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*/
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#define OPA_ENABLE_INT(opa, u32OpaNum) ((opa)->CTL |= (1UL<<(OPA_CTL_OPDOIEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to disable OPA Schmitt trigger digital output interrupt
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will clear OPDIEx (x=0, 1) bit of OPACR register to disable the OPA Schmitt trigger digital output interrupt.
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* \hideinitializer
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*/
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#define OPA_DISABLE_INT(opa, u32OpaNum) ((opa)->CTL &= ~(1UL<<(OPA_CTL_OPDOIEN0_Pos+(u32OpaNum))))
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/**
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* @brief This macro is used to get OPA digital output state
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return OPA digital output state
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* @details This macro will return the OPA digital output value.
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* \hideinitializer
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*/
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#define OPA_GET_DIGITAL_OUTPUT(opa, u32OpaNum) (((opa)->STATUS & (OPA_STATUS_OPDO0_Msk<<(u32OpaNum)))?1UL:0UL)
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/**
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* @brief This macro is used to get OPA interrupt flag
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @retval 0 OPA interrupt does not occur.
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* @retval 1 OPA interrupt occurs.
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* @details This macro will return the ACMP interrupt flag.
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* \hideinitializer
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*/
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#define OPA_GET_INT_FLAG(opa, u32OpaNum) (((opa)->STATUS & (OPA_STATUS_OPDOIF0_Msk<<(u32OpaNum)))?1UL:0UL)
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/**
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* @brief This macro is used to clear OPA interrupt flag
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @return None
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* @details This macro will write 1 to OPDFx (x=0,1) bit of OPASR register to clear interrupt flag.
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* \hideinitializer
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*/
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#define OPA_CLR_INT_FLAG(opa, u32OpaNum) ((opa)->STATUS = (OPA_STATUS_OPDOIF0_Msk<<(u32OpaNum)))
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/**
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* @brief This function is used to configure and start OPA calibration
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* @param[in] opa The pointer of the specified OPA module
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* @param[in] u32OpaNum The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
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* @param[in] u32ClockSel Select OPA calibration clock
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* - \ref OPA_CALIBRATION_CLK_1K
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* @param[in] u32RefVol Select OPA reference voltage
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* - \ref OPA_CALIBRATION_RV_1_2_AVDD
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* - \ref OPA_CALIBRATION_RV_H_L_VCM
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* @retval 0 PMOS and NMOS calibration successfully.
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* @retval -1 only PMOS calibration failed.
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* @retval -2 only NMOS calibration failed.
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* @retval -3 PMOS and NMOS calibration failed.
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*/
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__STATIC_INLINE int32_t OPA_Calibration(OPA_T *opa,
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uint32_t u32OpaNum,
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uint32_t u32ClockSel,
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uint32_t u32RefVol)
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{
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uint32_t u32CALResult;
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int32_t i32Ret = 0L;
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(opa)->CALCTL = (((opa)->CALCTL) & ~(OPA_CALCTL_CALCLK0_Msk << (u32OpaNum << 1)));
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(opa)->CALCTL = (((opa)->CALCTL) & ~(OPA_CALCTL_CALRVS0_Msk << (u32OpaNum))) | (((u32RefVol) << OPA_CALCTL_CALRVS0_Pos) << (u32OpaNum));
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(opa)->CALCTL |= (OPA_CALCTL_CALTRG0_Msk << (u32OpaNum));
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while((opa)->CALCTL & (OPA_CALCTL_CALTRG0_Msk << (u32OpaNum))) {}
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u32CALResult = ((opa)->CALST >> ((u32OpaNum)*4U)) & (OPA_CALST_CALNS0_Msk|OPA_CALST_CALPS0_Msk);
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if (u32CALResult == 0U)
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{
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i32Ret = 0L;
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}
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else if (u32CALResult == OPA_CALST_CALNS0_Msk)
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{
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i32Ret = -2L;
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}
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else if (u32CALResult == OPA_CALST_CALPS0_Msk)
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{
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i32Ret = -1L;
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}
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else if (u32CALResult == (OPA_CALST_CALNS0_Msk|OPA_CALST_CALPS0_Msk))
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{
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i32Ret = -3L;
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}
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return i32Ret;
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}
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/**
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* @brief This macro is used to generate asynchronous reset signals to OPA controller
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* @param None
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* @return None
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* \hideinitializer
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*/
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#define OPA_Reset() \
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do { \
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SYS->IPRST2 |= SYS_IPRST2_OPARST_Msk; \
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SYS->IPRST2 &= ~SYS_IPRST2_OPARST_Msk; \
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} while(0)
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/*@}*/ /* end of group OPA_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group OPA_Driver */
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/*@}*/ /* end of group Standard_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __NU_OPA_H__ */
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/*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
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