ST STM32F2 User Manual

LL I2C Generic Driver
UM1940
956/1371
DocID028236 Rev 2
Notes
Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to
check whether or not SMBus feature is supported by the I2Cx
Instance.
SMBus Device mode: SMBus Alert pin is not drived (can be
used as a standard GPIO) and Alert Response Address
Header acknowledge is disabled. SMBus Host mode:SMBus
Alert pin management is not supported.
Reference Manual to
LL API cross
reference:
CR1 ALERT LL_I2C_DisableSMBusAlert
LL_I2C_IsEnabledSMBusAlert
Function name
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusAlert
(I2C_TypeDef * I2Cx)
Function description
Check if SMBus alert (Host or Device mode) is enabled or
disabled.
Parameters
I2Cx: I2C Instance.
Return values
State: of bit (1 or 0).
Notes
Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to
check whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 ALERT LL_I2C_IsEnabledSMBusAlert
LL_I2C_EnableSMBusPEC
Function name
__STATIC_INLINE void LL_I2C_EnableSMBusPEC
(I2C_TypeDef * I2Cx)
Function description
Enable SMBus Packet Error Calculation (PEC).
Parameters
I2Cx: I2C Instance.
Return values
None:
Notes
Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to
check whether or not SMBus feature is supported by the I2Cx
Instance.
Reference Manual to
LL API cross
reference:
CR1 ENPEC LL_I2C_EnableSMBusPEC
LL_I2C_DisableSMBusPEC
Function name
__STATIC_INLINE void LL_I2C_DisableSMBusPEC
(I2C_TypeDef * I2Cx)
Function description
Disable SMBus Packet Error Calculation (PEC).
Parameters
I2Cx: I2C Instance.
Return values
None:

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English