STM32C0116-DK has I2C pinout discrepancy

Karl Yamashita · ‎2024-09-30

I am currently ordering the STM32C0116-DK to start developing some FW before getting the shipment. I've also sent the pinout to the EE team so they can start the schematic and laying out the PCB

I started the project using the Board Selector. I've set up the UART and I2C which the pinout is shown below. The I2C peripheral is using PA9 and PA10

However, when I set up a new project using the MCU selector, the I2C peripheral are on other pins. I am selecting the same MCU where it shows the STM32C0116-DK as the development board to use.

But when I set up the I2C peripheral, it uses PB7 and PC14

I thought I could maybe remap the pins but there is no option for I2C on PA12 pin as shown below.

So which pinout is correct? Or are they actually 2 different MCU's?

I was told that if a devices starts to smoke, put the smoke back in. I guess I never got all the smoke because the device never worked afterwards.
Don't worry, I won't byte.
TimerCallback tutorial! | UART and DMA Idle tutorial!

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TDK · ‎2024-09-30

Same chip. In the SYS tab, remap the pins to PA9/PA10. After that, you can select the I2C1 functions for the pins.

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TDK · ‎2024-09-30

Same chip. In the SYS tab, remap the pins to PA9/PA10. After that, you can select the I2C1 functions for the pins.

If you feel a post has answered your question, please click "Accept as Solution".

Karl Yamashita · ‎2024-09-30

Ahh! That's the first time seeing swapping pins using check box. Or maybe I've just never noticed.

Thanks TDK!

I was told that if a devices starts to smoke, put the smoke back in. I guess I never got all the smoke because the device never worked afterwards.
Don't worry, I won't byte.
TimerCallback tutorial! | UART and DMA Idle tutorial!

If you find my solution useful, please click the Accept as Solution so others see the solution.