Pico: No CANBUS?

saden123
Posts: 12
Joined: Tue Jul 24, 2018 12:18 am

Pico: No CANBUS?

Postby saden123 » Thu Feb 14, 2019 2:50 pm

CAN IDF API calls work fine, but there is no subsequent CAN signalling on Pico.
Can anyone confirm that the Pico chip is missing the bits required for CAN please?
If so, this should probably be made clear in the Pico documentation, I certainly hadn't realised until way too late :shock: !
Anything else missing worth knowing?

Many thanks
Si.

ESP_igrr
Posts: 2067
Joined: Tue Dec 01, 2015 8:37 am

Re: Pico: No CANBUS?

Postby ESP_igrr » Thu Feb 14, 2019 11:48 pm

I know that the driver was developed using a PICO-KIT board, so CAN should definitely be working there. Can you post more details on how you are testing (what is the hardware, what are the connections etc)

saden123
Posts: 12
Joined: Tue Jul 24, 2018 12:18 am

Re: Pico: No CANBUS?

Postby saden123 » Fri Feb 15, 2019 12:23 am

Hi Igrr
Thanks for the reply. All details is first job for (my) tomorrow...
Good to know it should work and may just be me.
Si.

saden123
Posts: 12
Joined: Tue Jul 24, 2018 12:18 am

Re: Pico: No CANBUS?

Postby saden123 » Fri Feb 15, 2019 10:58 am

Hi Igrr,
I've taken another look; It's the CAN driver I'm using. I believe it is a VP230 (hard to read to confirm authenticity) and is supposed to run at 3.3v, but for whatever reason, it doesn't. I have switched to a TJA1051 which is working fine.
I found a post elsewhere that indicated a lack of CAN in Pico and jumped to the wrong conclusion, my apologies for not scoping the TTL side before posting here.
Thanks again for your offer of support.
Si.

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