Hello,
I'd like to read car speed and engine RPM Peugeot 206 1.4 HDI 2002 and other if possible in similar fashion.
Maybe someone knows or have some hints how to do it with a little help of MPU in custom PCB?
Is it possible using eg. such simple VAN bus interface described there:
http://graham.auld.me.uk/projects/vanbus/van-pc.html connect to AVR MPU in this way
based on
Microchip MCP2551 CAN Transceiver connect to car bus?
For the moment, only connecting to car bus is the most important thing, since I wonder where I could plug such VAN/CAN connector to my car vehicle electronics network?
They mentioned on VAN bus interface to usb page linked above that:
The software in the PIC was hacked together by observing the output from a Peugeot head unit and reading the Atmel TSS461F VAN Datalink controller datasheet. I would have liked to use one of the Atmel VAN controllers but I was not able to purchase one easily.
This looks like they successfully connected to Peugeot car somewhere, but I have no idea where to connect it in car to be able monitor car VAN in real time?
Inside Peugeot BSI unit -probably it is MUX version in my car, whatever it means
I read somewhere that such Peugeot external radio connectors like this is interface between black oryginal radio v8 connector in this Peugeot 206 car (or similar?):
Pin nr. 1 – free
Pin nr. 2 – 9004 Van Data
Pin nr. 3 – 9005 Van Data Bar
Pin nr. 4 – XE24 + Van
Pin nr. 5 – 8409 antenna amplifier
Pin nr. 6 – CE18 + ignition
Pin nr.7 – BE11 + BSI
Pin nr. 8 – MC30 GND car
We have pins: 2 ,3 , 4 for VAN (I guess) and pin 8 as GND on VAN plug side in schematics above?
This what I wanted to do for the moment is basicly find place where to connect to car VAN and using fast optocoupler monitor car VAN network, so it looks like MCP2551 in read mode could be fine, but I'm a little bit overhelmed by amount of infrmation needed and lack of easy available car detailed datasheets howto interface this Peugeot 206 1.4 HDI 2002 year production VAN/CAN/MUX - what ever it has (probably MUX BSI version) to try sniff and detect vehicle speed and engine RPM
I'm looking for some hints to speed up learning curve in this new very interesting topic.
I've found also another CAN/VAN bus interface manuals
Vehicle Bus Analyzer Operator's Manual
http://cdn.teledynelecroy.com/files/manuals/vba_om_reva.pdfCAN BUS Analyzer User's Guide
http://ww1.microchip.com/downloads/en/DeviceDoc/51848B.pdfProtocols_for_Wired_and_wireless_networks_in_vehicle_systems
http://graham.auld.me.uk/projects/vanbus/datasheets/vehicle_networks_mammhud_s1.pdfA CAN Physical Layer Discussion
http://ww1.microchip.com/downloads/en/AppNotes/00228a.pdfAn introduction to the CAN protocol that discusses the basics and key features
Controller Area Network (CAN) Basics
http://ww1.microchip.com/downloads/en/AppNotes/00713a.pdfMCP2551 High-Speed CAN Transceiver (receiver)
http://ww1.microchip.com/downloads/en/DeviceDoc/21667f.pdfAnyway this CAN IC is available in my favourite store at ~$1 price, so... I should have it in hands soon
http://www.tme.eu/en/details/mcp2551-e_sn/can-integrated-circuits/microchip-technology/Update: In this VAN Interface IC MTC-30521 hopefully Data and DataB pins are explained
http://nicozone.free.fr/206/VAN/MTC-30521.pdfData - positive interface pin
DataB - negative interface pin
It is time to make teardown and see how non factory car radio was connected in car service a few years ago