Call the function HAL_I2C_Init() to configure the selected device with the selected
configuration:
Communication Speed
Duty cycle
Addressing mode
Own Address 1
Dual Addressing mode
Own Address 2
General call mode
Nostretch mode
Call the function HAL_I2C_DeInit() to restore the default configuration of the selected
I2Cx peripheral.
This section contains the following APIs:
HAL_I2C_Init()
HAL_I2C_DeInit()
HAL_I2C_MspInit()
HAL_I2C_MspDeInit()
24.2.3 IO operation functions
This subsection provides a set of functions allowing to manage the I2C data transfers.
1. There are two modes of transfer:
Blocking mode : The communication is performed in the polling mode. The status
of all data processing is returned by the same function after finishing transfer.
No-Blocking mode : The communication is performed using Interrupts or DMA.
These functions return the status of the transfer startup. The end of the data
processing will be indicated through the dedicated I2C IRQ when using Interrupt
mode or the DMA IRQ when using DMA mode.
2. Blocking mode functions are :
HAL_I2C_Master_Transmit()
HAL_I2C_Master_Receive()
HAL_I2C_Slave_Transmit()
HAL_I2C_Slave_Receive()
HAL_I2C_Mem_Write()
HAL_I2C_Mem_Read()
HAL_I2C_IsDeviceReady()
3. No-Blocking mode functions with Interrupt are :
HAL_I2C_Master_Transmit_IT()
HAL_I2C_Master_Receive_IT()
HAL_I2C_Slave_Transmit_IT()
HAL_I2C_Slave_Receive_IT()
HAL_I2C_Master_Sequential_Transmit_IT()
HAL_I2C_Master_Sequential_Receive_IT()
HAL_I2C_Slave_Sequential_Transmit_IT()
HAL_I2C_Slave_Sequential_Receive_IT()
HAL_I2C_Mem_Write_IT()
HAL_I2C_Mem_Read_IT()
4. No-Blocking mode functions with DMA are :
HAL_I2C_Master_Transmit_DMA()
HAL_I2C_Master_Receive_DMA()
HAL_I2C_Slave_Transmit_DMA()
HAL_I2C_Slave_Receive_DMA()
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