[Solved] Compatibility of ESP32-C3 TWAI bus and TCAN3413

[julienD]

Hello,

I'm building an app that reads data from a car CAN bus.
It uses TCAN3413DDFR (https://www.ti.com/lit/ds/symlink/tcan3414.pdf) connected
to an ESP32-C3 module.
The test app is built around the listen-only example of esp-idf.

The signal looks good at the output of the TCAN3413 but I receive nothing of the ESP32-C3 side.
The device is wired to IO9 and IO10.

Here are screenshots of what is beetween the transceiver and the microcontroler. One is a full frame
and the other one is the smallest bit I was able to capture. It leads to a 500KHz frequency (validated with
a microchip can analyzer directly plugged into the car OBD plug).

Before going to software. I would like to know if there could be a hardware incompatibility
that I was unable to spot in the datasheets beetween the two devices?

Thanks
Julien

[julienD]

Ok, just to know, it works. RX pin on the transceiver is the output pin.