topic About CAN Wakeup Pulse in MC33742 in Other NXP Products

About CAN Wakeup Pulse in MC33742

vinman0261 — Thu, 15 Feb 2018 08:33:17 GMT

Folks,

Using MC33742 (SBC - CAN Transceiver - 28 pin IC) in one of our project.

Initialized the Transceiver in Normal mode. After 100 milliseconds of Power up, CAN TX (Pin# - 2) is getting reset.

Due to this reset pulse, we couldn't able to transmit data via CAN bus. Attached the evidence for the same.

Can anyone tell me how to resolve this issue.

Thanks

Vinoth

Re: About CAN Wakeup Pulse in MC33742

TomasVaverka — Tue, 20 Feb 2018 11:55:42 GMT

It is being solved internally (Case 00151731).

Re: About CAN Wakeup Pulse in MC33742

andrea_costa — Wed, 28 Feb 2018 09:15:30 GMT

Hi Tomas,

i'm facing the same issue :smileysad: The SPI init sequence is the one suggested in the datasheet (DEBUG MODES WITH SOFTWARE WATCHDOG DISABLED THOUGH SPI) and i'm sending via SPI the commands {0xB5, 0x10, 0x15, 0x5F}.

What i'm missing? How did you manage to solve the problem?

Thanks,

Andrea