VCMPEMLIB
Detailed Description
Voltage Comparator (VCMP) Peripheral API.
This module contains functions to control the VCMP peripheral of Silicon Labs 32-bit MCUs and SoCs. The VCMP monitors the input voltage supply and generates interrupts on events using as little as 100 nA.
Data Structures |
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struct | VCMP_Init_TypeDef |
Macros |
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#define | VCMP_INIT_DEFAULT |
Enumerations |
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enum |
VCMP_Hysteresis_TypeDef
{
vcmpHystNone , vcmpHyst20mV } |
enum |
VCMP_WarmTime_TypeDef
{
vcmpWarmTime4Cycles = _VCMP_CTRL_WARMTIME_4CYCLES, vcmpWarmTime8Cycles = _VCMP_CTRL_WARMTIME_8CYCLES, vcmpWarmTime16Cycles = _VCMP_CTRL_WARMTIME_16CYCLES, vcmpWarmTime32Cycles = _VCMP_CTRL_WARMTIME_32CYCLES, vcmpWarmTime64Cycles = _VCMP_CTRL_WARMTIME_64CYCLES, vcmpWarmTime128Cycles = _VCMP_CTRL_WARMTIME_128CYCLES, vcmpWarmTime256Cycles = _VCMP_CTRL_WARMTIME_256CYCLES, vcmpWarmTime512Cycles = _VCMP_CTRL_WARMTIME_512CYCLES } |
Functions |
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__STATIC_INLINE void | VCMP_Disable (void) |
Disable Voltage Comparator.
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__STATIC_INLINE void | VCMP_Enable (void) |
Enable Voltage Comparator.
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void | VCMP_Init (const VCMP_Init_TypeDef *vcmpInit) |
Configure and enable Voltage Comparator.
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__STATIC_INLINE void | VCMP_IntClear (uint32_t flags) |
Clear one or more pending VCMP interrupts.
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__STATIC_INLINE void | VCMP_IntDisable (uint32_t flags) |
Disable one or more VCMP interrupts.
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__STATIC_INLINE void | VCMP_IntEnable (uint32_t flags) |
Enable one or more VCMP interrupts.
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__STATIC_INLINE uint32_t | VCMP_IntGet (void) |
Get pending VCMP interrupt flags.
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__STATIC_INLINE uint32_t | VCMP_IntGetEnabled (void) |
Get enabled and pending VCMP interrupt flags.
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__STATIC_INLINE void | VCMP_IntSet (uint32_t flags) |
Set one or more pending VCMP interrupts from SW.
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void | VCMP_LowPowerRefSet (bool enable) |
Enable or disable Low Power Reference setting.
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__STATIC_INLINE bool | VCMP_Ready (void) |
VCMP output is ready.
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void | VCMP_TriggerSet (int level) |
Configure trigger level of voltage comparator.
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__STATIC_INLINE bool | VCMP_VDDHigher (void) |
Returns true, if Voltage Comparator indicated VDD > trigger level, else false.
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__STATIC_INLINE bool | VCMP_VDDLower (void) |
Returns true, if Voltage Comparator indicated VDD < trigger level, else false.
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__STATIC_INLINE uint32_t | VCMP_VoltageToLevel (float v) |
Calculate voltage to trigger level.
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Macro Definition Documentation
#define VCMP_INIT_DEFAULT |
Default VCMP initialization structure
Definition at line
120
of file
em_vcmp.h
.
Referenced by VDDCHECK_LowVoltage() .
Enumeration Type Documentation
Warm-up Time in High Frequency Peripheral Clock cycles
Definition at line
61
of file
em_vcmp.h
.
Function Documentation
void VCMP_Init | ( | const VCMP_Init_TypeDef * |
vcmpInit
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) |
Configure and enable Voltage Comparator.
- Parameters
-
[in] vcmpInit
VCMP Initialization structure
Definition at line
60
of file
em_vcmp.c
.
References _VCMP_CTRL_BIASPROG_MASK , _VCMP_CTRL_BIASPROG_SHIFT , _VCMP_CTRL_INACTVAL_SHIFT , _VCMP_CTRL_WARMTIME_MASK , _VCMP_CTRL_WARMTIME_SHIFT , VCMP_Init_TypeDef::biasProg , VCMP_Init_TypeDef::enable , VCMP_Init_TypeDef::halfBias , VCMP_Init_TypeDef::hyst , VCMP_Init_TypeDef::inactive , VCMP_Init_TypeDef::irqFalling , VCMP_Init_TypeDef::irqRising , VCMP_Init_TypeDef::lowPowerRef , VCMP_Init_TypeDef::triggerLevel , VCMP , VCMP_CTRL_EN , VCMP_CTRL_HALFBIAS , VCMP_CTRL_HYSTEN , VCMP_CTRL_IFALL , VCMP_CTRL_IRISE , VCMP_IF_EDGE , VCMP_IntClear() , VCMP_LowPowerRefSet() , VCMP_Ready() , VCMP_TriggerSet() , vcmpHyst20mV , vcmpHystNone , and VCMP_Init_TypeDef::warmup .
Referenced by VDDCHECK_LowVoltage() .
__STATIC_INLINE void VCMP_IntClear | ( | uint32_t |
flags
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) |
Clear one or more pending VCMP interrupts.
- Parameters
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[in] flags
VCMP interrupt sources to clear. Use a set of interrupt flags OR-ed together to clear multiple interrupt sources for the VCMP module (VCMP_IFS_nnn).
Definition at line
225
of file
em_vcmp.h
.
References VCMP .
Referenced by VCMP_Init() .
__STATIC_INLINE void VCMP_IntDisable | ( | uint32_t |
flags
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) |
Disable one or more VCMP interrupts.
- Parameters
-
[in] flags
VCMP interrupt sources to enable. Use a set of interrupt flags OR-ed together to set multiple interrupt sources for the VCMP module (VCMP_IFS_nnn).
Definition at line
253
of file
em_vcmp.h
.
References VCMP .
__STATIC_INLINE void VCMP_IntEnable | ( | uint32_t |
flags
|
) |
Enable one or more VCMP interrupts.
- Parameters
-
[in] flags
VCMP interrupt sources to enable. Use a set of interrupt flags OR-ed together to set multiple interrupt sources for the VCMP module (VCMP_IFS_nnn).
Definition at line
267
of file
em_vcmp.h
.
References VCMP .
__STATIC_INLINE uint32_t VCMP_IntGet | ( | void |
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) |
Get pending VCMP interrupt flags.
- Note
- The event bits are not cleared by the use of this function
- Returns
- Pending VCMP interrupt sources. Returns a set of interrupt flags OR-ed together for multiple interrupt sources in the VCMP module (VCMP_IFS_nnn).
Definition at line
283
of file
em_vcmp.h
.
References VCMP .
__STATIC_INLINE uint32_t VCMP_IntGetEnabled | ( | void |
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) |
Get enabled and pending VCMP interrupt flags.
Useful for handling more interrupt sources in the same interrupt handler.
- Note
- The event bits are not cleared by the use of this function.
- Returns
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Pending and enabled VCMP interrupt sources. The return value is the bitwise AND combination of
- the OR combination of enabled interrupt sources in VCMP_IEN_nnn register (VCMP_IEN_nnn) and
- the OR combination of valid interrupt flags of the VCMP module (VCMP_IF_nnn).
Definition at line
306
of file
em_vcmp.h
.
References VCMP .
__STATIC_INLINE void VCMP_IntSet | ( | uint32_t |
flags
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) |
Set one or more pending VCMP interrupts from SW.
- Parameters
-
[in] flags
VCMP interrupt sources to set to pending. Use a set of interrupt flags OR-ed together to set multiple interrupt sources for the VCMP module (VCMP_IFS_nnn).
Definition at line
239
of file
em_vcmp.h
.
References VCMP .
void VCMP_LowPowerRefSet | ( | bool |
enable
|
) |
Enable or disable Low Power Reference setting.
- Parameters
-
[in] enable
If true, enables low power reference, if false disable low power reference
Definition at line
140
of file
em_vcmp.c
.
References VCMP , and VCMP_INPUTSEL_LPREF .
Referenced by VCMP_Init() .
void VCMP_TriggerSet | ( | int |
level
|
) |
Configure trigger level of voltage comparator.
- Parameters
-
[in] level
Trigger value, in range 0-63
Definition at line
156
of file
em_vcmp.c
.
References _VCMP_INPUTSEL_TRIGLEVEL_MASK , _VCMP_INPUTSEL_TRIGLEVEL_SHIFT , and VCMP .
Referenced by VCMP_Init() .
__STATIC_INLINE uint32_t VCMP_VoltageToLevel | ( | float |
v
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) |
Calculate voltage to trigger level.
- Note
- You need soft float support for this function to be working
- Parameters
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[in] v
Voltage Level for trigger
Definition at line
170
of file
em_vcmp.h
.
Referenced by VDDCHECK_LowVoltage() .