topic MSCAN CRC on CAN Message in Kinetis Microcontrollers

MSCAN CRC on CAN Message

harish_shekarap — Fri, 05 Apr 2019 23:28:26 GMT

Hi,

The MSCAN CAN example CAN_CheckSendBufferFrame transmits the Data on the CAN bus, I wanted to know whether the CAN message is sent with CRC? or do we need to manually calculate the CRC and add to the Frame buffer?

Thanks

Re: MSCAN CRC on CAN Message

mjbcswitzerland — Sun, 07 Apr 2019 15:47:37 GMT

CRC is generated in the HW on transmission and check in the HW in reception. I don't think that any CAN controller will require it to be done in SW.

Regards

Mark

Re: MSCAN CRC on CAN Message

Robin_Shen — Fri, 12 Apr 2019 03:30:26 GMT

Hi Harish Shekarappa,

You don't need to manually calculate the CRC and add to the Frame buffer.

About the software, you can download the latest MCUXpresso SDK.
I don't know which Kinetis MCU are you using. If KE06 or KE16 are used, please refer the CAN examples in SDK_2.5.0_FRDM-KE06Z or SDK_2.5.0_FRDM-KE16Z.
...\SDK_2.5.0_FRDM-KE16Z\boards\frdmke16z\driver_examples\mscan\interrupt_transfer
...\SDK_2.5.0_FRDM-KE06Z\boards\frdmke06z\driver_examples\mscan\loopback_transfer

Best Regards,

Robin

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