Migrate I2C Block Usage to STM32 Processor Based Library Block

When you migrate I2C block usage in STMicroelectronics hardware board models from using Simulink Coder support package blocks to using Embedded Coder support package blocks, there is a workflow you should use. This table lists the blocks that should be migrated with this workflow.

Migrate Block Usage

Migrate from Blocks in Simulink Coder Support Package for STMicroelectronics Nucleo Boards Library	Migrate to Blocks in Embedded Coder Support Package for STMicroelectronics STM32 Processor Library
I2C Controller Read	I2C Controller Read
I2C Controller Write	I2C Controller Write

To migrate your model from using these blocks to using the corresponding blocks in an STM32Fxx Based Board block library, follow these steps. These example steps show the process for migrating usage from the Nucleo library I2C Controller Read block and I2C Controller Write block to the STM32 processor library I2C Controller Read block and I2C Controller Write block:

1. Open the Simulink model in which you are migrating block usage.

2. From Configuration Parameters > Hardware Implementation > Target hardware resources > Group, select the I2C0 (default) resource. Note the pin selections for SCL (D15 corresponds to external pin PB_8) and SDA (D14 corresponds to external pin PB_9).

   

3. Change Hardware board selection to STM32F4xx Based. After the dialog box updates to match this selection, From Target hardware resources > Build options, use the Browse or Create buttons to select an STM32CubMX project file.

   

4. To open the STM32 CubeMX configuration software and configure pin selections, click the Launch button.

5. In the STM32 CubeMX configuration software, configure the I2C1 port serial clock (SCL) pin usage to PB8 and the serial data (SDA) pin usage to PB9.

   

6. In the Simulink model, replace the I2C Controller Read from the Nucleo library with a I2C Controller Read from the STM32F4xx Based Boards library or STM32F7xx Based Boards library.

7. View the block configuration parameters. Confirm that the I2C module selection is configured for the default I2C module which is I2C1. This setting matches the pin mapping that you assigned in the CubeMX configuration IOC file.