CAN on STM32F756xx

robert239955_stm1_st · ‎2015-12-10

Posted on December 10, 2015 at 16:12

Hello,

I try to send CAN frame from CAN1 to CAN2 on STM32F756xx. CAN1 works in a master mode and CAN2 in a slave mode.

I can transmit frames from CAN1 as well as from CAN2 but I can't receive any messages.

Also when I transmitted frames from PC using CAN analyzer I couldn't receive it on my uC.

I'm using HAL drivers. Configuration should be fine, because I can transmit frames from CAN1 and CAN2.

Do you have any working example or suggestion what should I do?

Thanks in advance,

Regards,

Robert

Amel NASRI · ‎2015-12-10

Posted on December 10, 2015 at 17:40

Hi serafiniak.robert,

You have the example STM32Cube_FW_F7_V1.2.0\Projects\STM32756G_EVAL\Examples\CAN\CAN_Networking where CAN1 is used. In this example, CAN1 is configured to send and receive CAN frames in normal mode.

-Mayla-

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

jpeacock · ‎2015-12-10

Posted on December 10, 2015 at 19:14

Have you checked the RX filters? Messages are ignored if they don't match a filter.

robert239955_stm1_st · ‎2015-12-10

Posted on December 11, 2015 at 08:29

I had bad CAN2 filter configuration