Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Fork of
TUKS-COURSE-TIMER
by 
TUKS MCU Introductory course
Data_Management
[I2C Exported Functions]
Functions | |
| __STATIC_INLINE void | LL_I2C_EnableAutoEndMode (I2C_TypeDef *I2Cx) |
| Enable automatic STOP condition generation (master mode). | |
| __STATIC_INLINE void | LL_I2C_DisableAutoEndMode (I2C_TypeDef *I2Cx) |
| Disable automatic STOP condition generation (master mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_IsEnabledAutoEndMode (I2C_TypeDef *I2Cx) |
| Check if automatic STOP condition is enabled or disabled. | |
| __STATIC_INLINE void | LL_I2C_EnableReloadMode (I2C_TypeDef *I2Cx) |
| Enable reload mode (master mode). | |
| __STATIC_INLINE void | LL_I2C_DisableReloadMode (I2C_TypeDef *I2Cx) |
| Disable reload mode (master mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_IsEnabledReloadMode (I2C_TypeDef *I2Cx) |
| Check if reload mode is enabled or disabled. | |
| __STATIC_INLINE void | LL_I2C_SetTransferSize (I2C_TypeDef *I2Cx, uint32_t TransferSize) |
| Configure the number of bytes for transfer. | |
| __STATIC_INLINE uint32_t | LL_I2C_GetTransferSize (I2C_TypeDef *I2Cx) |
| Get the number of bytes configured for transfer. | |
| __STATIC_INLINE void | LL_I2C_AcknowledgeNextData (I2C_TypeDef *I2Cx, uint32_t TypeAcknowledge) |
| Prepare the generation of a ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte. | |
| __STATIC_INLINE void | LL_I2C_GenerateStopCondition (I2C_TypeDef *I2Cx) |
| Generate a STOP condition after the current byte transfer (master mode). | |
| __STATIC_INLINE void | LL_I2C_GenerateStartCondition (I2C_TypeDef *I2Cx) |
| Generate a START or RESTART condition. | |
| __STATIC_INLINE void | LL_I2C_EnableAuto10BitRead (I2C_TypeDef *I2Cx) |
| Enable automatic RESTART Read request condition for 10bit address header (master mode). | |
| __STATIC_INLINE void | LL_I2C_DisableAuto10BitRead (I2C_TypeDef *I2Cx) |
| Disable automatic RESTART Read request condition for 10bit address header (master mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_IsEnabledAuto10BitRead (I2C_TypeDef *I2Cx) |
| Check if automatic RESTART Read request condition for 10bit address header is enabled or disabled. | |
| __STATIC_INLINE void | LL_I2C_SetTransferRequest (I2C_TypeDef *I2Cx, uint32_t TransferRequest) |
| Configure the transfer direction (master mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_GetTransferRequest (I2C_TypeDef *I2Cx) |
| Get the transfer direction requested (master mode). | |
| __STATIC_INLINE void | LL_I2C_SetSlaveAddr (I2C_TypeDef *I2Cx, uint32_t SlaveAddr) |
| Configure the slave address for transfer (master mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_GetSlaveAddr (I2C_TypeDef *I2Cx) |
| Get the slave address programmed for transfer. | |
| __STATIC_INLINE void | LL_I2C_HandleTransfer (I2C_TypeDef *I2Cx, uint32_t SlaveAddr, uint32_t SlaveAddrSize, uint32_t TransferSize, uint32_t EndMode, uint32_t Request) |
| Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set). | |
| __STATIC_INLINE uint32_t | LL_I2C_GetTransferDirection (I2C_TypeDef *I2Cx) |
| Indicate the value of transfer direction (slave mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_GetAddressMatchCode (I2C_TypeDef *I2Cx) |
| Return the slave matched address. | |
| __STATIC_INLINE void | LL_I2C_EnableSMBusPECCompare (I2C_TypeDef *I2Cx) |
| Enable internal comparison of Packet Error byte (transmission or reception mode). | |
| __STATIC_INLINE uint32_t | LL_I2C_IsEnabledSMBusPECCompare (I2C_TypeDef *I2Cx) |
| Check if Packet Error byte internal comparison is requested or not. | |
| __STATIC_INLINE uint32_t | LL_I2C_GetSMBusPEC (I2C_TypeDef *I2Cx) |
| Get the Packet Error byte calculated. | |
| __STATIC_INLINE uint8_t | LL_I2C_ReceiveData8 (I2C_TypeDef *I2Cx) |
| Read Receive Data register. | |
| __STATIC_INLINE void | LL_I2C_TransmitData8 (I2C_TypeDef *I2Cx, uint8_t Data) |
| Write in Transmit Data Register . | |
Function Documentation
| __STATIC_INLINE void LL_I2C_AcknowledgeNextData | ( | I2C_TypeDef * | I2Cx, |
| uint32_t | TypeAcknowledge | ||
| ) |
Prepare the generation of a ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte.
- Note:
- Usage in Slave mode only. CR2 NACK LL_I2C_AcknowledgeNextData
- Parameters:
-
I2Cx I2C Instance. TypeAcknowledge This parameter can be one of the following values: - LL_I2C_ACK
- LL_I2C_NACK
- Return values:
-
None
Definition at line 1964 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_DisableAuto10BitRead | ( | I2C_TypeDef * | I2Cx ) |
Disable automatic RESTART Read request condition for 10bit address header (master mode).
- Note:
- The master only sends the first 7 bits of 10bit address in Read direction. CR2 HEAD10R LL_I2C_DisableAuto10BitRead
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 2013 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_DisableAutoEndMode | ( | I2C_TypeDef * | I2Cx ) |
Disable automatic STOP condition generation (master mode).
- Note:
- Software end mode : TC flag is set when NBYTES data are transferre, stretching SCL low. CR2 AUTOEND LL_I2C_DisableAutoEndMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1879 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_DisableReloadMode | ( | I2C_TypeDef * | I2Cx ) |
Disable reload mode (master mode).
- Note:
- The transfer is completed after the NBYTES data transfer(STOP or RESTART will follow). CR2 RELOAD LL_I2C_DisableReloadMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1914 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_EnableAuto10BitRead | ( | I2C_TypeDef * | I2Cx ) |
Enable automatic RESTART Read request condition for 10bit address header (master mode).
- Note:
- The master sends the complete 10bit slave address read sequence : Start + 2 bytes 10bit address in Write direction + Restart + first 7 bits of 10bit address in Read direction. CR2 HEAD10R LL_I2C_EnableAuto10BitRead
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 2001 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_EnableAutoEndMode | ( | I2C_TypeDef * | I2Cx ) |
Enable automatic STOP condition generation (master mode).
- Note:
- Automatic end mode : a STOP condition is automatically sent when NBYTES data are transferred. This bit has no effect in slave mode or when RELOAD bit is set. CR2 AUTOEND LL_I2C_EnableAutoEndMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1867 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_EnableReloadMode | ( | I2C_TypeDef * | I2Cx ) |
Enable reload mode (master mode).
- Note:
- The transfer is not completed after the NBYTES data transfer, NBYTES will be reloaded when TCR flag is set. CR2 RELOAD LL_I2C_EnableReloadMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1902 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_EnableSMBusPECCompare | ( | I2C_TypeDef * | I2Cx ) |
Enable internal comparison of Packet Error byte (transmission or reception mode).
- Note:
- Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not SMBus feature is supported by the I2Cx Instance.
- This feature is cleared by hardware when the PEC byte is transferred, or when a STOP condition or an Address Matched is received. This bit has no effect when RELOAD bit is set. This bit has no effect in device mode when SBC bit is not set. CR2 PECBYTE LL_I2C_EnableSMBusPECCompare
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 2164 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_GenerateStartCondition | ( | I2C_TypeDef * | I2Cx ) |
Generate a START or RESTART condition.
- Note:
- The START bit can be set even if bus is BUSY or I2C is in slave mode. This action has no effect when RELOAD is set. CR2 START LL_I2C_GenerateStartCondition
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1988 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_GenerateStopCondition | ( | I2C_TypeDef * | I2Cx ) |
Generate a STOP condition after the current byte transfer (master mode).
CR2 STOP LL_I2C_GenerateStopCondition
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
None
Definition at line 1975 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetAddressMatchCode | ( | I2C_TypeDef * | I2Cx ) |
Return the slave matched address.
ISR ADDCODE LL_I2C_GetAddressMatchCode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Value between Min_Data=0x00 and Max_Data=0x3F
Definition at line 2148 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetSlaveAddr | ( | I2C_TypeDef * | I2Cx ) |
Get the slave address programmed for transfer.
CR2 SADD LL_I2C_GetSlaveAddr
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Value between Min_Data=0x0 and Max_Data=0x3F
Definition at line 2076 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetSMBusPEC | ( | I2C_TypeDef * | I2Cx ) |
Get the Packet Error byte calculated.
- Note:
- Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not SMBus feature is supported by the I2Cx Instance. PECR PEC LL_I2C_GetSMBusPEC
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Value between Min_Data=0x00 and Max_Data=0xFF
Definition at line 2190 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetTransferDirection | ( | I2C_TypeDef * | I2Cx ) |
Indicate the value of transfer direction (slave mode).
- Note:
- RESET: Write transfer, Slave enters in receiver mode. SET: Read transfer, Slave enters in transmitter mode. ISR DIR LL_I2C_GetTransferDirection
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Returned value can be one of the following values: - LL_I2C_DIRECTION_WRITE
- LL_I2C_DIRECTION_READ
Definition at line 2137 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetTransferRequest | ( | I2C_TypeDef * | I2Cx ) |
Get the transfer direction requested (master mode).
CR2 RD_WRN LL_I2C_GetTransferRequest
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Returned value can be one of the following values: - LL_I2C_REQUEST_WRITE
- LL_I2C_REQUEST_READ
Definition at line 2052 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_GetTransferSize | ( | I2C_TypeDef * | I2Cx ) |
Get the number of bytes configured for transfer.
CR2 NBYTES LL_I2C_GetTransferSize
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Value between Min_Data=0x0 and Max_Data=0xFF
Definition at line 1949 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_HandleTransfer | ( | I2C_TypeDef * | I2Cx, |
| uint32_t | SlaveAddr, | ||
| uint32_t | SlaveAddrSize, | ||
| uint32_t | TransferSize, | ||
| uint32_t | EndMode, | ||
| uint32_t | Request | ||
| ) |
Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set).
CR2 SADD LL_I2C_HandleTransfer
CR2 ADD10 LL_I2C_HandleTransfer
CR2 RD_WRN LL_I2C_HandleTransfer
CR2 START LL_I2C_HandleTransfer
CR2 STOP LL_I2C_HandleTransfer
CR2 RELOAD LL_I2C_HandleTransfer
CR2 NBYTES LL_I2C_HandleTransfer
CR2 AUTOEND LL_I2C_HandleTransfer
CR2 HEAD10R LL_I2C_HandleTransfer
- Parameters:
-
I2Cx I2C Instance. SlaveAddr Specifies the slave address to be programmed. SlaveAddrSize This parameter can be one of the following values: - LL_I2C_ADDRSLAVE_7BIT
- LL_I2C_ADDRSLAVE_10BIT
TransferSize Specifies the number of bytes to be programmed. This parameter must be a value between 0 and 255. EndMode This parameter can be one of the following values: - LL_I2C_MODE_RELOAD
- LL_I2C_MODE_AUTOEND
- LL_I2C_MODE_SOFTEND
- LL_I2C_MODE_SMBUS_RELOAD
- LL_I2C_MODE_SMBUS_AUTOEND_NO_PEC
- LL_I2C_MODE_SMBUS_SOFTEND_NO_PEC
- LL_I2C_MODE_SMBUS_AUTOEND_WITH_PEC
- LL_I2C_MODE_SMBUS_SOFTEND_WITH_PEC
Request This parameter can be one of the following values: - LL_I2C_GENERATE_NOSTARTSTOP
- LL_I2C_GENERATE_STOP
- LL_I2C_GENERATE_START_READ
- LL_I2C_GENERATE_START_WRITE
- LL_I2C_GENERATE_RESTART_7BIT_READ
- LL_I2C_GENERATE_RESTART_7BIT_WRITE
- LL_I2C_GENERATE_RESTART_10BIT_READ
- LL_I2C_GENERATE_RESTART_10BIT_WRITE
- Return values:
-
None
Definition at line 2119 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_IsEnabledAuto10BitRead | ( | I2C_TypeDef * | I2Cx ) |
Check if automatic RESTART Read request condition for 10bit address header is enabled or disabled.
CR2 HEAD10R LL_I2C_IsEnabledAuto10BitRead
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
State of bit (1 or 0).
Definition at line 2024 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_IsEnabledAutoEndMode | ( | I2C_TypeDef * | I2Cx ) |
Check if automatic STOP condition is enabled or disabled.
CR2 AUTOEND LL_I2C_IsEnabledAutoEndMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
State of bit (1 or 0).
Definition at line 1890 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_IsEnabledReloadMode | ( | I2C_TypeDef * | I2Cx ) |
Check if reload mode is enabled or disabled.
CR2 RELOAD LL_I2C_IsEnabledReloadMode
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
State of bit (1 or 0).
Definition at line 1925 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPECCompare | ( | I2C_TypeDef * | I2Cx ) |
Check if Packet Error byte internal comparison is requested or not.
- Note:
- Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not SMBus feature is supported by the I2Cx Instance. CR2 PECBYTE LL_I2C_IsEnabledSMBusPECCompare
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
State of bit (1 or 0).
Definition at line 2177 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE uint8_t LL_I2C_ReceiveData8 | ( | I2C_TypeDef * | I2Cx ) |
Read Receive Data register.
RXDR RXDATA LL_I2C_ReceiveData8
- Parameters:
-
I2Cx I2C Instance.
- Return values:
-
Value between Min_Data=0x00 and Max_Data=0xFF
Definition at line 2201 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_SetSlaveAddr | ( | I2C_TypeDef * | I2Cx, |
| uint32_t | SlaveAddr | ||
| ) |
Configure the slave address for transfer (master mode).
- Note:
- Changing these bits when START bit is set is not allowed. CR2 SADD LL_I2C_SetSlaveAddr
- Parameters:
-
I2Cx I2C Instance. SlaveAddr This parameter must be a value between Min_Data=0x00 and Max_Data=0x3F.
- Return values:
-
None
Definition at line 2065 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_SetTransferRequest | ( | I2C_TypeDef * | I2Cx, |
| uint32_t | TransferRequest | ||
| ) |
Configure the transfer direction (master mode).
- Note:
- Changing these bits when START bit is set is not allowed. CR2 RD_WRN LL_I2C_SetTransferRequest
- Parameters:
-
I2Cx I2C Instance. TransferRequest This parameter can be one of the following values: - LL_I2C_REQUEST_WRITE
- LL_I2C_REQUEST_READ
- Return values:
-
None
Definition at line 2039 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_SetTransferSize | ( | I2C_TypeDef * | I2Cx, |
| uint32_t | TransferSize | ||
| ) |
Configure the number of bytes for transfer.
- Note:
- Changing these bits when START bit is set is not allowed. CR2 NBYTES LL_I2C_SetTransferSize
- Parameters:
-
I2Cx I2C Instance. TransferSize This parameter must be a value between Min_Data=0x00 and Max_Data=0xFF.
- Return values:
-
None
Definition at line 1938 of file stm32l4xx_ll_i2c.h.
| __STATIC_INLINE void LL_I2C_TransmitData8 | ( | I2C_TypeDef * | I2Cx, |
| uint8_t | Data | ||
| ) |
Write in Transmit Data Register .
TXDR TXDATA LL_I2C_TransmitData8
- Parameters:
-
I2Cx I2C Instance. Data Value between Min_Data=0x00 and Max_Data=0xFF
- Return values:
-
None
Definition at line 2213 of file stm32l4xx_ll_i2c.h.
Generated on Tue Jul 12 2022 17:38:57 by
1.7.2