Can I use HSE oscillator clock for bxCAN?

[Ajith P V]

Posted on April 28, 2017 at 11:37

Hi,

Currently, I'm working on a project where LCD, Camera and CAN are involved.

I'm using STM32F769I-EVAL platform for my work with 'SetupSTM32CubeMX-4.19.0' installation and 'STM32Cube_FW_F7_V1.6.0' firmware package.

As far as my understanding, Camera and LCD required accurate clocks hence, I have to use HSE oscillator clock for the same.When it comes to bxCAN, I have seen many of the example source initialize HSI clock for the same. When I try to make it into HSE, then BxCAN is not functioning properly!

The only CAN example I have found with HSE clock is 'CAN_Networking' example from

'

STM32Cube_FW_F7_V1.6.0' firmware package, in which only one side (transmitting) is working properly and other side (receiving) not.

So, I would like to know whether bxCAN can work with HSE oscillator clock. If yes, then which values (such as SYSCLK,HCLK, AHB Prescaler, PLLM etc. ) I have to put for the HSE clock configuration in-order to make it work for LCD, Camera and CAN.

Thank you in advance,

Ajith P V#hse-config #stm32f769i-eval #can-bxcan #clock-configuration #stm32f7 #hsi #stm #stm32

[Ajith P V · Accepted solution]

Posted on May 15, 2017 at 07:39

I have made it work after carefully selected the HSE clock values.