Wrong Iden about vanbus HOT 7 CLOSED

from vanbus.

Oh yeah... sorry for bothering you for nothing. I missed that information. Thanks for your reply.

from vanbus.

Thanks @morcibacsi !

@Romain-GABET , I would like to do some testing on the 62.5 kbit/s bus. Do you have a test setup? Or are you tapping a wire from your vehicle? I would be interested in setting up a small test environment, maybe you can give me some hints.

from vanbus.

My ultimate goal is to handle requests solely through the ESP32.

I've got everything set up on my workbench.

Using a DOIT ESP32 DEVKIT V1 connected to a SN65HVD230D, following a similar schematic from your repository.

I've got a COM2000 DAV, but a Delphi version would do the job too. Here's the pinout on the grey connector:

VAN Data: 1
VAN Data\ : 3
GND: 4
+12V: 5, 6

For testing, I'm using a USB-MUX-C3V, which can send and receive Van frames.

If there's anything I missed, feel free to ask.

Considering adding 62.5 kbit/s support on my end. I'll update you if I make any progress.

from vanbus.

Thanks @Romain-GABET ! Will the COMM2000 unit start sending VAN packets even in when not connected to any other equipment (i.e., standalone)?

My test setup for the 125 kbit/s system required at least a head unit and an MFD, like the one shown in this forum post *) (I think the original picture is from @morcibacsi ?)

*) btw, that schematic is wrong: as drawn there, pins 4 and 18 of the MFD socket must be swapped. MFD pin 4 is "VAN data bar" or "/DATA", pin 18 is "VAN data" or "DATA". As is pin 17 btw.

from vanbus.

Oh yeah, I forgot about that. Well, thanks again to @morcibacsi who previously helped me with that. The COM2000 won't send packets on its own; it needs a specific packet sent by the BSI with the ID 450 and a reply in request type of frame. Basically, the BSI only sends the beginning of a packet (SOF, ID, and Command flags), and the COM2000 adds its status in the next 8 bytes. I can find some resources about that if you want.

from vanbus.

So, I assume you can either use a BSI or simulate it with a microcontroller.

from vanbus.