I would like to know how to configure RCC on my evaluation Board STM32L552E-EV.

[DYann.1]

I connect my I2C but when I connect an oscilloscope I have nothing on the clock signal. So probably I misconfigured my clock. Could you give me the information? Thanks in advance.

In this picture below I've a warning, do you know how to remove this warning please ?

Thank you for your helps.

Regards

Yann DO

[Foued_KH]

Hello @DYann.1​ ,

For the clock configuration, you can manager your clock with the tab "Clock Configuration"

You have to choose your Source:

• for the HSE source, please follow this step :

If you select the MCU selector, you will have all peripherals without default mode.

Hope my answer helped you!

Foued

[DYann.1]

Hi,

Thank you for your helps, I have STM32L552E-EV evaluation Board and in your first screenshot I can't see the bottom of the screenshot, could you send me a complete copy of the screenshot please ? Why in the left of your picture all is green and for me I have the yellow color with exclamation marks, I'm afraid something is wrong that why I don't have the Clock of I2C. Normally it's automatic.

Thank you for your helps.

[Foued_KH]

Hello,

Please find the screenshot in the attached file.

 

Foued

[DYann.1]

Hi,

Thank you but I can see only the picture above but I can't see the one below

Can you please show me of the rest of the picture.

Thank you

[Foued_KH]

Hello,

Foued

[DYann.1]

Thank you, I'll do the same configuration with my evaluation board and I hope I don't have any warning again.

[DYann.1]

Now with STM32cube i selected my evaluation board like this picture

I don't slected by default, because my configuration is probably not the same as default.

I don't have the possibilty to do the same as your configuration.

Do you also have the STM32L5 card? Or else it's not very important. And When I want to generate the code it shows me errors.

Do you know where this error comes from ?

[DYann.1]

I have always the warning about RCC.

Something is wrong ?

[Foued_KH]

I f you try with MCU selector and select the STM32L552ZE MCU:

Foued

[DYann.1]

I'll try it tomorrow. Thank you for your patience.

[DYann.1]

Hello,

I come back again, after having listened to your advice, I do not encounter any warnings or errors.

After, this step how can I check if my clock is running correctly on my evaluation board? For example, can I test the HAL delay function ?

I just to check this step before continuing to configure the I2C and then SAI.

Thank you for your helps

Regards

[DYann.1]

I also configure I2C and no warning and no errors.

[DYann.1]

After configuring the RCC, I2C and SAI I still have an error at the I2C level

 

Something is wrong but I don't know where it could come from

[Foued_KH]

Transmits in master mode an amount of data in blocking mode:

HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size,uint32_t Timeout)

• hi2c Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.
• DevAddress Target device address: The device 7 bits address value in datasheet must be shifted to the left before calling the interface
• pData Pointer to data buffer
• Size Amount of data to be sent
• Timeout Timeout duration