AM263P4-Q1: How to covert MCAN FD example from MCU+SDK 10.0.0.35 into standard CAN

TARUN SATYA SAI BALAJI PITTAPURAPU

Part Number: AM263P4-Q1
Other Parts Discussed in Thread: TMDSCNCD263P

Tool/software:

I am currently working with the AM263Px Control Card using the CCS Theia environment and MCU+ SDK version 10.0.0.35. I would like to understand how to convert the provided CAN FD example for the MCAN (Modular CAN) module into Standard CAN.

Specifically, I would appreciate your guidance on the following:

Any changes or modifications required in the code to switch from CAN FD to Standard CAN.
Settings or selections to be made in sys_config for proper configuration.
Any additional steps or considerations to ensure successful implementation.

9 months ago

0 Nilabh Anand 9 months ago

TI__Mastermind 45154 points

Hi Tarun,

You can refer to the MCAN example for standard CAN packets based example:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM263X/latest/exports/docs/api_guide_am263x/EXAMPLES_DRIVERS_MCAN_EXTERNAL_READ_WRITE.html

There is a bug in documentation that we say we are using CAN FD packets but in example code we are using standard can packets

...

0 Nilabh Anand 9 months ago in reply to Nilabh Anand

TI__Mastermind 45154 points

You can look into the example code to verify the buffer that is a standard CAN packet.

0 TARUN SATYA SAI BALAJI PITTAPURAPU 9 months ago in reply to Nilabh Anand

Prodigy 140 points

Dear Nilabh Anand,

Thank you for your prompt response.

I would like to use the onboard CAN transceiver, as I am working with the AM263Px Control Card (Part No: TMDSCNCD263P), which has the MCAN4 pins available out through the 3Pin (CAN_L, CAN_H, GND) header.

However, in the suggested example, the sys_config selection is only showing up to MCAN3, which corresponds to the AM263x Control Card.

I tried using the same example from MCU+SDK 10.0.0.35 for the AM263Px Control Card, and it works when the CAN FD tool is used. However, I am unable to capture transmitted signal from the CC when attempting to access the Standard CAN.

Could you kindly assist with this issue?

Best regards,
Tarun

0 Nilabh Anand 9 months ago in reply to TARUN SATYA SAI BALAJI PITTAPURAPU

TI__Mastermind 45154 points

Hi Tarun,

TARUN SATYA SAI BALAJI PITTAPURAPU said:
I tried using the same example from MCU+SDK 10.0.0.35 for the AM263Px Control Card

Are you using the SDK of AM263Px ?

0 TARUN SATYA SAI BALAJI PITTAPURAPU 9 months ago in reply to Nilabh Anand

Prodigy 140 points

Hi Nilabh,

Yes, I am using MCU+SDK of AM263Px and working on AM263Px Control Card (TMDSCNCD263P)

0 Nilabh Anand 9 months ago in reply to TARUN SATYA SAI BALAJI PITTAPURAPU

TI__Mastermind 45154 points

Allow me to check this, I will get back on it by Wednesday next week.

Meanwhile can you try changing the packets being transmitted i.e application buffer to generate a MCAN packet instead of CAN-FD

+1 Akash Soni 9 months ago in reply to TARUN SATYA SAI BALAJI PITTAPURAPU

Intellectual 340 points

Hi Tarun,

Switching from Extended to Standard CAN in canfd_loopback_polling/interrupt examples, kindly follow below steps:

Untick FD mode and Bit switching in the syscfg gui.
Configure TxMsgObject and RxMsgobject to CANFD_MCANXidType_11_BIT in canfd_loopback_polling/interrupt example
Update CANFD_write API's argument from CANFD_MCANFrameType_FD to CANFD_MCANFrameType_CLASSIC in canfd_loopback_polling/interrupt example.
Update MCAN_APP_TEST_DATA_SIZE to 8, as classic CAN support data size of 8 bytes

Feel free to reach me, in case you have any query.

Regards,

Akash Soni

0 TARUN SATYA SAI BALAJI PITTAPURAPU 9 months ago in reply to Akash Soni

Prodigy 140 points

Hi Akash,

I have modified Bit Switching setting with my current example mcan_external_read_write, which is working.

Thanks for your great support.

Regards,

Tarun

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AM263P4-Q1: How to covert MCAN FD example from MCU+SDK 10.0.0.35 into standard CAN