TCAN1146-Q1: TCAN1146-Q1 selective wake

youlian chen

Part Number: TCAN1146-Q1

I set TCAN1146 selective wake,but TCAN1146 Cannot be awakened.The following is Registers’ data

CAN 收发器代码中用于唤醒帧(WUF)的选择性唤醒寄存器配置：
扩展 CAN ID：0x1E384000x
掩码：0xFFF
数据掩码不启用。
CANFD 仲裁段500kbps 数据波特率：2000kbps
SW_ID_1	10
SW_ID_2	0
SW_ID_3	3E
SW_ID_4	38
SW_ID_MASK_1.	0
SW_ID_MASK_2	0f
SW_ID_MASK_3.	ff
SW_ID_MASK_4	0
SW_ID_MASK_DLC	0
SW_CONFIG_1	d0
SW_CONFIG_4	80

10 months ago

0 Eric Hackett 10 months ago

TI__Guru 71792 points

Youlian,

An engineer has been assigned this thread and will respond by end of business 03/12/2024.

Regards,

Eric Hackett

0 Eric Schott1 10 months ago

TI__Guru 50835 points

Hi Youlian,

The configuration settings here look correct for the application you describe. The WAKE ID is properly set, data mask is disabled, the data rate is set at 500kbps, and SW_FD_PASSIVE is set so all CAN FD traffic will be ignored.

Partial networking does not support wake via CAN FD frames. Only classic CAN frames can be used where the data rate of the whole from is the same. Please ensure that the wake up frame that you are sending on the bus to wake TCAN1145 does not have the FDE bit set so that it is transmitted in the proper format for selective wake.

If this is already done, please share a scope shot of the CANH and CANL signals while the wake up frame is being sent on the bus so I can confirm that the proper information in being received by the transceiver.

Regards,
Eric Schott

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TCAN1146-Q1: TCAN1146-Q1 selective wake