Opel Meriva 2008: Baud Rate Settings

Hello,
I've connected to the CAN bus between the Body Control Module (BCM) and the instrument cluster. Does anyone know what the baud rate is? I'm not receiving any messages with CanHack. I'm looking for the IDs for lights, central locking, etc.!
Thank you and best regards.
Frank.

Want to experiment with bitrate? I have no idea how that works on your Opel.

Common mistake: Swapping CAN-H and CAN-L.

Hello,
habe alle gängigen Baudraten ausprobiert. High und Low vertauscht. Without success.
Frank.

Hello,
habe alle gängigen Baudraten ausprobiert. High und Low vertauscht. Without success.
Frank.
Hello Franky,

Please try 95.2 kbit/s.

Bye.
Andi.

Hello,
I was already able to successfully read the value of 95.2 on the radio.
I've now figured out that the ID I need is likely on the Single Wire Low bus, which has a speed of 33.33 kbps. Is it possible to read this data using the can tool?
Ultimately, I want to read and process the data using an Atmega and an MCP (as I did with the 95.2). But how do I do that with a single-wire CAN bus?
Frank.

Hello,

It's simple. You connect the single-wire CAN transceiver to your microcontroller's pins, for example:
http://www.nxp.com/documents/data_sheet/AU5790.pdf
And that's pretty much it.

Regards,
Okay, hier ist die Übersetzung:

'Vlad.'

@Wladi
Thank you for the information.
Do you have any example code for an Atmega microcontroller?
Could I use a PCA82C250 instead of the SJA1000?
Regards,
Frank.

So, if your Atmega microcontroller doesn't have a built-in CAN interface, you will need either a PCA82C250 for 2-wire CAN or an SJA1000 plus an AU5790 for 1-wire CAN. And if you use, for example, an AT90CAN128 microcontroller, the SJA1000 is not required.

SJA1000 is a controller, while PCA82C250/AU5790 are merely CAN transceivers.

There are plenty of example codes available on the internet.

Sure!
Could I also use an Atmega32 with an MCP2515 and an AU5790?
I haven't been able to find a sample circuit diagram for connecting the AU5790 to the MCP2515.
What could I use to calculate the register values for 33.33 kbps?
Frank.

Could I also use an Atmega32 with a MCP2515 and an AU5790?
Yes.
I haven't been able to find a sample circuit diagram for connecting the AU5790 to the MCP2515.
'Why a schematic diagram? All you need to do is connect CAN_RX and CAN_TX. Datasheets provide that information.'
What could I use to calculate the register values for 33.33 kbps?
You can also find the instructions for calculating this in the datasheet.

Can anyone recommend a source for the AU5790? I haven't been able to find it at major distributors like Reichelt and others.
Thank you.
Sure, here is the translation of the text from German to English:

'Fanky' translates to 'Thank you' in English.

Available at Farnell...

Hello,
Can I only order as a registered business?
Frank.

As a private individual, you can obtain Farnell products through http://www.hbe-shop.de/.

I've already tried that before. However, the AU5790 is no longer listed or available for purchase there?
Is that difficult ?
Frank.

There are many 'single-wire CAN transceivers' available from various manufacturers. Just choose the one that your trusted supplier can provide.