Can't receive any CAN data on STM32F303CCT6

[MSzła.1]

Hello I tried to receive any CAN signal on my device based on STM32F303CCT6. Maybe you have solution :), CAN pins are remapped on PB9 and PB8 pins by STMCubeMX configurator

Below my code (main.c):

https://pastecode.io/s/7av2ge6m

and my settings in configurator:

I also set CAN RX pull HIGH using the internal pull-up, like in the tutorial https://controllerstech.com/can-protocol-in-stm32/

Thanks for help

[mƎALLEm]

Hello,

Same remark as this post:

You need to avoid low BSx values and need to increase as much as possible  BS1 and BS2 while decreasing the prescaler. You need to take care about the sample point that needs to be at around 87,5%.

hcan.Init.Prescaler = 18;
hcan.Init.TimeSeg1 = CAN_BS1_2TQ;
hcan.Init.TimeSeg2 = CAN_BS2_1TQ;

Please refer to these knowledge base articles for STM32 CAN in normal mode (bxCAN):

Hope that helps you and others ..