Something about TJA1042 CAN transceiver wake-up event

[charlesc]

I set the STB pin to HIGH to make the CAN  transceiver enter to STANDBY MODE ,but i can not wake-up the CAN  transceiver by sending a CAN messege .As followed shows requirement how to wake-up CAN requirement:

 I do make sure the CAN bus dominant and bus recessive states is longer than  tfltr(wake)bus ,but the RXD pin is still HIGH and would not be LOW.

Anyone can help me to slove this problem?

Thanks!

[lukasfakier]

Hello, I have the same problem with TJA1042,

it is marked TJA1042 52 26 6431,

it is connected to 5V uC, and on (floating) split pin I have 5V,

when I set 5V on STB pin it is not possible to wake it up, no low signal on RX pin.

When I solder MCP2551 in same circuit, everything is OK,

any suggestions?