CAN BUS on Nucleo H743ZI2 - clock configuration issue

[AmGo]

Hello,

I’ve recently started using ST products and the IDE with CubeMX, which is why I’m asking for your help. I’ve just begun developing a communication system using a Nucleo H743ZI2; my goal is to set up a UART and a CAN bus.

The UART is done; I used DMA access to optimize it. However, when I try to enable the CAN bus in Cube MX, I run into a problem with the clock configuration related to the bus.

When I use the “Resolve Clock Issues” function, I get the error: “Cannot find a solution for some constraints.”

Does anyone have any ideas to help me solve this problem?

Thank you in advance, and have a great day,

 

 

 

 

[mƎALLEm]

---

@AmGo wrote:

Is it the clock speed generated by my ST-Link ? 

---

Yes. By selecting Bypass mode, the clock source arrives to OSC_IN pin to feed the RCC which is generated by ST-LINK.

[AmGo]

Oh, right, that’s exactly what I did. I chose 64 MHz for convenience. It’s not a specific requirement for my project.

Thank you very much for your help. 

Have a nice day ! 

[mƎALLEm]

Ok good.

So please accept as solution the post that answered your original question (asked in your first post).