AN4228 datasheet(64/90 Pages) STMICROELECTRONICS

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Firmware migration using the library

AN4228

64/90

DocID024110 Rev 5

The main changes in the source code/procedure in STM32F3 series versus STM32F1

series are described below:



Dual Clock Source (Refer to section for more details).



No Prescaler feature configuration.



It supports more than one address (multiple addressing).



Each event flag has an associate enable control bit to generate the adequate interrupt.



In the CEC structure definition, seven fields should be initialized.

The example below shows how to configure the CEC STM32F1 series:

/* Configure the CEC peripheral */

CEC_InitStructure.CEC_BitTimingMode = CEC_BitTimingStdMode;

CEC_InitStructure.CEC_BitPeriodMode = CEC_BitPeriodStdMode;

CEC_Init(&CEC_InitStructure);

In F37 series, you have to update this code as follows:

/* Configure CEC */

CEC_InitStructure.CEC_SignalFreeTime = CEC_SignalFreeTime_Standard;

CEC_InitStructure.CEC_RxTolerance = CEC_RxTolerance_Standard;

CEC_InitStructure.CEC_StopReception = CEC_StopReception_Off;

CEC_InitStructure.CEC_BitRisingError = CEC_BitRisingError_Off;

CEC_InitStructure.CEC_LongBitPeriodError = CEC_LongBitPeriodError_Off;

CEC_InitStructure.CEC_BRDNoGen = CEC_BRDNoGen_Off;

CEC_InitStructure.CEC_SFTOption = CEC_SFTOption_Off;

CEC_Init(&CEC_InitStructure);

4.13

I2C driver

STM32F3xx devices incorporate new I2C features. The table below presents the I2C driver

API correspondence between STM32F10x and STM32F3xx Libraries. Update your

application code by replacing STM32F10x functions by the corresponding functions of the

STM32F3xx library.

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