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 Posted: Wed Jun 24, 2015 8:09 pm |
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Joined: Jun 24, 2015
Posts: 5
Trade Rating: 0
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Posted: Thu Jun 25, 2015 12:37 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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Would it not be easier to get a bluetooth EOBD reader and download an app so you can see the details on your phone screen?
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Posted: Thu Jun 25, 2015 5:19 am |
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Joined: Jun 24, 2015
Posts: 5
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Nope, because of I need monitor vehicle speed and engine RPM revolutions in realtime and microcontroler preprogrammed to do specific tasks based on those readings 
So, this is not for diagnostics purpose, but as enhancement CAN module.
Using builtin car clock display (CAN bus, one line of characters PPT40 = Multiplexed, I hope ) to display some data including custom GPS module could be nice feature, so reading CAN bus is first step-control car clock display is another step...
Probably I will try to see how this car clock display is connected-there must be CAN bus wires, since some messages like opened doors, danger ice flashing temperature, etc are displayed in real time, so if I were able to crack at least this CAN bus communication it could be good starting point 
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Posted: Thu Jun 25, 2015 7:09 am |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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The interior of the vehicle runs van, the only can network is between the abs, engine ecu and bsi
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
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144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
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Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Thu Jun 25, 2015 7:48 am |
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Joined: Jun 24, 2015
Posts: 5
Trade Rating: 0
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| Addaz wrote: |
| ...the only can network is between the abs, engine ecu and bsi |
Hmm, in VAN bus interface project described there
graham.auld.me.uk/proj...an-pc.html
Microchip MCP2551 CAN Transceiver (Reader) is used to interface to the VAN bus, so this what I wonna do is use the same chip but with other MPU (Atmel AVR, not PIC used in that project).
So, VAN bus is the only available at LCD display module or close to external radio connectors? It should be possible to connect to CAN bus in read only mode, since I wouldn't like interfere with CAN bus, while it looks like critical systems are there-just read CAN bus frames-detect those those with vehicle speed or engine RPM, than in a optoisolated way (no electrical connection) drive VAN bus, eg. to display custom message on car clock display LCD.
I do not need transmit enything to CAN bus, but optionally to car LCD, so it is not a problem if VAN and CAN buses are separated 
Anyway, thanks for sharing this.
I believe in after looking into linked above Alarm connection to CAN bus BSI in other cars including Citroen and other Peugeot models, that those CAN bus wires in Peugeot 206 might be on back side of BSI module and maybe marked CAN-H: black/pink and CAN-L white/pink in BSI blue connector as shown below (from Alarm CAN bus setup) 
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Posted: Thu Jun 25, 2015 10:13 am |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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I seriously have no idea what the flying f*** your going on about
The can connections are on the front of the bsi, im trying to grasp your logic on what your doing and how but i cant
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
Click to see more
144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
Click to see more
For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Thu Jun 25, 2015 1:33 pm |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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I can see this ending up with needing to order some new magic smoke as some is going to escape 
I've got visions of a 206 on the back of a recovery wagon requiring a replacement BSI unit.
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Thu Jun 25, 2015 4:20 pm |
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Joined: Jun 20, 2012
Posts: 1171
Trade Rating: +1
Location: West Country
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He wants to wire tap (in good sense) into the CAN bus and read off broadcast messages
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Posted: Thu Jun 25, 2015 4:35 pm |
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Joined: Jun 24, 2015
Posts: 5
Trade Rating: 0
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| Addaz wrote: |
| The can connections are on the front of the bsi, im trying to grasp your logic on what your doing and how but i cant |
Yep, copy that -I've at least found them by looking more carefully in those scans
Electric system Multi-plex built from October 2001
www.206info.co.uk/Foru...39224.html
They are not at great resolution, but especially this page is what I was interested in, since it shows VAN 9004/9005 between BSI and Instrument cluster, but also VAN 9004A/9005A between Instrument cluster and car MFD display, so basicly it looks like there is no need to touch CAN 9000/9001 bus between BSI and ECU, while I guess that instrument cluster speedometer and tachometer receive vehicle speed and engine RPM from engine speed sensor 110 connected to ECU as well as vehicle speed sensor 109 wired to engine fusebox (5) and via VAN 9012/9013 to BSI, so BSI can send this unformation to head display (instrument cluster) on steering wheel head display
Thank you @Addaz , you helped me a lot since information that thare are VAN buses and CAN bus between BSI and ECU was essensial to solve this puzzle
@MrBSI No worry, since I have wiring diagram of audio and instrumentation cluster with MFD display connections, my plan is make teardown of MFD module and logs its VAN bus first using modified code from already linked previous work graham.auld.me.uk/proj...an-pc.html and the only physical contact with VAN bus will be using mentioned IC Microchip MCP2551 CAN in read only mode, so its time to know better VAN bus internals.
I hope, I'l be able determine properly VAN bus pins and its connectors in MFD, Internal cluster and audio connector which seams to have also BSI VAN 9004/9005 pins
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Posted: Mon Aug 24, 2015 5:56 pm |
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Joined: Aug 24, 2015
Posts: 1
Trade Rating: 0
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Hello,
I can confirm the data you are searching is on the VAN bus. However, you cannot
write to the display.
the display updates its data by reading what's available on the
bus, I was unable to find any message that allows to display arbitrary characters.
check the following link for a documentation
of the known frame types
github.com/dwery/van-b...rames.text
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