How to set CAN rx filter

JungkyuHan1 — Fri, 18 Oct 2024 09:59:08 GMT

Using KW38

I want to make a CAN RX filter

ex: 0x18FFB034 ~ 0x18FFB534 , 0x19FFB028

Please Guide me.

Thanks

Re: How to set CAN rx filter

EduardoZamora — Tue, 22 Oct 2024 18:33:55 GMT

Hello @JungkyuHan1

CAN controller affiliated with each node implements a filter that checks the arbitration ID of a broadcast message and either accepts messages when the arbitration ID is within a particular range, or ignores messages outside of that range. Matching to a range of IDs should be possible by using ID acceptance masks. FlexCAN supports individual masking per MB (IRMQ bit set) or global masking scheme (IRMQ cleared).

Although there may not be specific documentation for this scenario, I will recommend you checking the MCUXpresso SDK API Reference Manual_MKW38 included in KW38 SDK documentation > docs folder. Chapter 14 describes the peripheral driver for FlexCAN module; please refer to "Configuration" APIs.

Just for reference, you can take a look at the Controller Area Network (CAN) standard - NXP Community.

Regards,
Eduardo.

Re: How to set CAN rx filter

JungkyuHan1 — Wed, 23 Oct 2024 00:46:20 GMT

[Shelf Solved]
need 1bit shift toward register.

base->RXFGMASK = 0x10FFB034<<1;

topic Re: How to set CAN rx filter in Kinetis Microcontrollers

How to set CAN rx filter

Re: How to set CAN rx filter

Re: How to set CAN rx filter