Running CAN-BUS Sample with different shield (NRF52840DK & Seeed CAN BUS Shield V2.0)

[ejromero2]

Hi All, 

Im very new to this how firmware space and would love some help.

Currently i have a NRF52840 DK Board with a Seeed Canbus shield. (CAN-BUS Shield V2.0 | Seeed Studio Wiki)

From what i have read is very similar to the DFROBOT CanBus Shield. (Only changing the default pinout for the CS from D10 to D9)

- I have been able to succesfully comple and flash the firmware but i get the following error :

Error starting CAN controller [-5]

I have tried modifying the dfrobot_can_bus_v2_0.overlay to make it work with my seeed shield.  (changing the CS-GPIOS to 15 (D9) instead of 16 (D10).

The error remains the same, and i dont really know how to get a little bit more information to progress on this.

Im trying to run this sample: zephyr/samples/drivers/can/counter at main · zephyrproject-rtos/zephyr (github.com)

[smh02]

Hi  ovrebekk , I was wondering if you could take a look at this ticket I made. I was finally able to send frames from my NRF to Arduino in normal mode, but when I try to recieve frames form Arduino to my NRF don't get anything.

(+) Recieve CAN BUS frames using Seeed CAN BUS Shield V2.0 & NRF52840DK - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Everything seems to work using the logic shifter TXS0108E.

Thanks for your time! 

[ovrebekk]

Hi Sofia

Sorry for the missing response from my side. I see similar issues on my side, but unfortunately I haven't really had time to investigate it further. Next week I am on travel, so I will have to follow this up when I'm back in office the second week of June. 

Again sorry for the delay, and if you discover anything interesting in the mean time please update the case. 

Best regards
Torbjørn

[smh02]

Hi Torbjørn

Don't worry, I appreciate your time and I'll be waiting for you when you get back. If I get a new result I will be commenting to you.

Regards