AWR1843: AWR1843 EVM CANFD interface has no data

Annie Liu

Part Number: AWR1843

Hi Team,

Customer is using lab0007_medium_range_radar project under mmwave_automotive_toolbox_2_7_1. It has not been changed after downloading on the official website. There is CANFD in this project. Test target results are also sent using CANFD. But he can’t receive data and no bus errors when using Kvaser CAN TOOL. He used the oscilloscope to test the CANFD interface waveform as follows:

Customer would like to know is there data transmission for such a waveform?

Thanks,

Annie

over 5 years ago

0 Raghunandan Kamath over 5 years ago

TI__Mastermind 22155 points

Hi Annie,

Does the Kvaser tool baudrate settings match the baudrate from the device? What version of the EVM is being used by the customer? There is a switch setting "S2" that need to be used for selecting CAN interface. Is this setting right?

-Raghu

0 Annie Liu over 5 years ago in reply to Raghunandan Kamath

TI__Genius 10295 points

Hi Raghu,

Customer is using AWR1843 EVM development board, S2 switch is set. The baud rates of the EVM and Kvaser tools are the same, but the specific parameter settings are a bit different. It does not affect communication when testing with 2M baud rate. Because Kvaser's host computer does not have a baud rate of 5M, he initially configured it with 8M, so he had the upper waveform.

Thanks.

Annie

0 Raghunandan Kamath over 5 years ago in reply to Annie Liu

TI__Mastermind 22155 points

Annie,

Can you post the bittiming values of the both the device side and the Kvaser tool?

-Raghu

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AWR1843: AWR1843 EVM CANFD interface has no data