OPA Exported Functions

Macros
#define	OPA_POWER_ON(opa, u32OpaNum)
	This macro is used to power on the OPA circuit. More...
#define	OPA_POWER_DOWN(opa, u32OpaNum)
	This macro is used to power down the OPA circuit. More...
#define	OPA_ENABLE_SCH_TRIGGER(opa, u32OpaNum)
	This macro is used to enable the OPA Schmitt trigger buffer. More...
#define	OPA_DISABLE_SCH_TRIGGER(opa, u32OpaNum)
	This macro is used to disable the OPA Schmitt trigger buffer. More...
#define	OPA_ENABLE_INT(opa, u32OpaNum)
	This macro is used to enable OPA Schmitt trigger digital output interrupt. More...
#define	OPA_DISABLE_INT(opa, u32OpaNum)
	This macro is used to disable OPA Schmitt trigger digital output interrupt. More...
#define	OPA_GET_DIGITAL_OUTPUT(opa, u32OpaNum)
	This macro is used to get OPA digital output state. More...
#define	OPA_GET_INT_FLAG(opa, u32OpaNum)
	This macro is used to get OPA interrupt flag. More...
#define	OPA_CLR_INT_FLAG(opa, u32OpaNum)
	This macro is used to clear OPA interrupt flag. More...
#define	OPA_Reset()
	This macro is used to generate asynchronous reset signals to OPA controller. More...

Functions
__STATIC_INLINE int32_t	OPA_Calibration (OPA_T *opa, uint32_t u32OpaNum, uint32_t u32ClockSel, uint32_t u32RefVol)
	This function is used to configure and start OPA calibration. More...

Detailed Description

Macro Definition Documentation

OPA_CLR_INT_FLAG

#define OPA_CLR_INT_FLAG	(		opa,
			u32OpaNum
	)

This macro is used to clear OPA interrupt flag.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will write 1 to OPDFx (x=0,1) bit of OPASR register to clear interrupt flag.

Definition at line 134 of file opa.h.

OPA_DISABLE_INT

#define OPA_DISABLE_INT	(		opa,
			u32OpaNum
	)

This macro is used to disable OPA Schmitt trigger digital output interrupt.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will clear OPDIEx (x=0, 1) bit of OPACR register to disable the OPA Schmitt trigger digital output interrupt.

Definition at line 103 of file opa.h.

OPA_DISABLE_SCH_TRIGGER

#define OPA_DISABLE_SCH_TRIGGER	(		opa,
			u32OpaNum
	)

This macro is used to disable the OPA Schmitt trigger buffer.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will clear OPSCHx_EN (x=0, 1) bit of OPACR register to disable the OPA Schmitt trigger buffer.

Definition at line 83 of file opa.h.

OPA_ENABLE_INT

#define OPA_ENABLE_INT	(		opa,
			u32OpaNum
	)

This macro is used to enable OPA Schmitt trigger digital output interrupt.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will set OPDIEx (x=0, 1) bit of OPACR register to enable the OPA Schmitt trigger digital output interrupt.

Definition at line 93 of file opa.h.

OPA_ENABLE_SCH_TRIGGER

#define OPA_ENABLE_SCH_TRIGGER	(		opa,
			u32OpaNum
	)

This macro is used to enable the OPA Schmitt trigger buffer.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will set OPSCHx_EN (x=0, 1) bit of OPACR register to enable the OPA Schmitt trigger buffer.

Definition at line 73 of file opa.h.

OPA_GET_DIGITAL_OUTPUT

#define OPA_GET_DIGITAL_OUTPUT	(		opa,
			u32OpaNum
	)

This macro is used to get OPA digital output state.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

OPA digital output state

This macro will return the OPA digital output value.

Definition at line 113 of file opa.h.

OPA_GET_INT_FLAG

#define OPA_GET_INT_FLAG	(		opa,
			u32OpaNum
	)

This macro is used to get OPA interrupt flag.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Return values

0	OPA interrupt does not occur.
1	OPA interrupt occurs.

This macro will return the ACMP interrupt flag.

Definition at line 124 of file opa.h.

OPA_POWER_DOWN

#define OPA_POWER_DOWN	(		opa,
			u32OpaNum
	)

This macro is used to power down the OPA circuit.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will clear OPx_EN (x=0, 1) bit of OPACR register to power down the OPA circuit.

Definition at line 63 of file opa.h.

OPA_POWER_ON

#define OPA_POWER_ON	(		opa,
			u32OpaNum
	)

This macro is used to power on the OPA circuit.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.

Returns

None

This macro will set OPx_EN (x=0, 1) bit of OPACR register to power on the OPA circuit.

Note

Remember to enable HIRC clock while power on the OPA circuit.

Definition at line 53 of file opa.h.

OPA_Reset

#define OPA_Reset

(

)

This macro is used to generate asynchronous reset signals to OPA controller.

Parameters

None

Returns

None

Definition at line 191 of file opa.h.

Function Documentation

OPA_Calibration()

__STATIC_INLINE int32_t OPA_Calibration	(	OPA_T *	opa,
		uint32_t	u32OpaNum,
		uint32_t	u32ClockSel,
		uint32_t	u32RefVol
	)

This function is used to configure and start OPA calibration.

Parameters

[in]	opa	The pointer of the specified OPA module
[in]	u32OpaNum	The OPA number. 0 for OPA0; 1 for OPA1; 2 for OPA2.
[in]	u32ClockSel	Select OPA calibration clock OPA_CALIBRATION_CLK_1K
[in]	u32RefVol	Select OPA reference voltage OPA_CALIBRATION_RV_1_2_AVDD OPA_CALIBRATION_RV_H_L_VCM

Return values

0	PMOS and NMOS calibration successfully.
-1	only PMOS calibration failed.
-2	only NMOS calibration failed.
-3	PMOS and NMOS calibration failed.

Definition at line 151 of file opa.h.