topic MPC-LS-VNP-RDB Configure various CAN channels in MPC5xxx

MPC-LS-VNP-RDB Configure various CAN channels

alberto_ruiz — Tue, 17 Oct 2023 15:30:28 GMT

Hi I am working with MPC-LS-VNP-RDB, and I want to configure more than one CAN channel, to receive and send frames, even CAN FD frames.

I have seen the example in S32DS for Power Architecture however I have not seen the possibility of controlling all the CAN inputs, there are 12.

Thanks.

Re: MPC-LS-VNP-RDB Configure various CAN channels

PetrS — Thu, 19 Oct 2023 12:28:04 GMT

Hi,

the board User Manual (https://www.nxp.com/webapp/Download?colCode=MPC-LS-VNP-RD-UM) shows the CAN interface block diagram. You can use that (or board schematic) to know how CAN transceivers are connected to each FlexCAN modules. You can reuse S32DS examples to init desired FlexCAN modules and thus use more CAN buses.
Besides 8 FlexCAN modules, there are four standalone CAN controllers (MCP2515, SPI to CAN) available to extend above direct CAN solution. However I am not aware there is any demo for MCP2515 usage. You can use demo/driver for DSPI from S32DS but you need to write communication protocol for this device by yourself. Or maybe there's general C driver - you can check with manufacturer of this part.

BR, Petr

Re: MPC-LS-VNP-RDB Configure various CAN channels

alberto_ruiz — Wed, 25 Oct 2023 10:10:48 GMT

Hi, thanks for the information.

I have been looking at it and I am no understanding everything I see in the examples, is there any tutorial realted to this product or in how to program the different modules of the MCU?

I mean I need to understand what I am doing, and having the examples is not so easy.

BR, Alberto.

Re: MPC-LS-VNP-RDB Configure various CAN channels

PetrS — Thu, 26 Oct 2023 08:26:52 GMT

Hi,

depends what kind of programming/example do you want to use, baremetal examples with direct peripheral register setting or using SDK drivers.
For both cases the S32DS provides set of examples for almost all peripherals, definitely a FlexCAN.
For baremetal examples I guess no further guide is available. You should know how module is functional, check device RM for this. Also you can refer to https://www.nxp.com/docs/en/application-note/AN4830.pdf

For SDK usage you can refer to https://community.nxp.com/t5/S32-Design-Studio-Knowledge-Base/HOWTO-Create-a-Blinking-LED-Project-MPC5748G/ta-p/1114912 or https://www.nxp.com/webapp/Download?colCode=MPC574xG-SDK-HOT

BR, Petr