Develop Bugs

TMC to USB Port (for Chinese GPS)

Dear All,
I would like to share my experience in this TMC project.
Recently I bought a Chinese GPS 100 unit to connect to my JVC KD AVX40
This has an av out in 320x240 and JVC has an AV in.
You can control the unit via touchpad.
It works correctly to my unit so I decided to get a TMC for this product.
This unit has One USB port which is in Host mode.
So Put a normal USB hub on it and it worked well with Pendrive and External Mouse
Next step, I got a FTDI USB to Rs232 device.
It has FTDI 232BM chip for UART connection it's very important to use chip like this , because of the windows ce driver
I've opened it and I removed chip called SP213EHCA.
In every RS232 there are 2 chips on the board. One is for USB to UART , and the second is for Uart To Rs232.
Because the every TMC receiver uses TTL communication which is working on 3.3v I need to "convert" the unit to USB to UART TTL only.
Obviously you can build a small circuit for this communication, but for myself it was easier to use this solution.
After I removed the Rs232 chip.
Datasheet Page 5 for picture of the pin outs.
You can download it from the FTDI website
The Tmc Receiver pin out is :
Pin definition:
Pin1 Vcc: 5V +- 10%
Pin2 TX: 3.3V TTL level, TMC data output.
Pin3 RX: 3.3V TTL level, receive commands.
Pin4 GND <-- It's not ground It's 5V !!!
Pin5 GND (for mini-USB only)
I soldered a mini USB mother type connector to the chip legs:
PIN2 goes to chip leg 24
PIN3 goes to chip leg 25
PIN5 goes to chip leg 17
So after this I connected the Royaltek TMC unit to my "hacked Rs232" board.
I put the "hacked rs232" to hub and I used a USB mini usb cable for power the tmc unit, so I connect the cable to hub and after that to the tmc.
After this I used this driver for windows ce 5.0
You can download it from the ftdi web site
I have to use mortscript which copy a self made reg file to the registry and copy the ftdi dll to /windows/ folder
Reg:
REGEDIT4
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\1027_24577]
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\1027_24577\Default]
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\1027_24577\Default\Default]
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\1027_24577\Default\Default\FTDI_DEVICE]
"DLL"="ftdi_ser"
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\Default\Default\255]
[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\Default\Default\255\FTDI_DEVICE]
"DLL"="ftdi_ser"
[HKEY_LOCAL_MACHINE\Drivers\USB\ClientDrivers\FTDI_DEVICE]
"Index"=dword:00000001
"InitialIndex"=dword:00000001 <--- This is for which com port to use 1...9
"Dll"="ftdi_ser"
"Prefix"="COM"
"Version"="1.0.2.11"
"ActiveSyncSetting"=dword:0003e880
"LatencyTimer"=dword:00000010
"DeviceArrayIndex"=dword:00000000
This reg file is directly uses COM PORT 1 (It was free in my device )
After this I created a very small circuit which holds the usb power for 20sec
parallely my reg and driver is installing in this time.
When I reached 20sec My Hive based Windows Registry will recognize the FTDI device and there are no pop up meassegas appear ....
IGO recognized the TMC device hardware
The reason I write this how to , because I read so many forums ,and web pages to find a solution for this , but i didn't find anything.
GNS is providing a TMC receiver for CAR PC but with a prolific based USB to UART chip, and the ARM based cpu is not understanding the driver
Ough I forget the tmc receiver what used:
Royaltek RTA-3000
Have a nince day I hope that I could help to someone

guika said:
Dear All,
Snip, snip
Have a nince day I hope that I could help to someone
Click to expand...
Click to collapse
I got the same JVC stereo, how can I unlock for multizone DVD? Thank!

If i understand it correctly that you mean, you want to unlock the dvd region limitation.
I didn't unlocked it, but the main problem, that the unlock lock status is came from the dvd FW, which is not possible to reach it, via this unit. I searched for the web, and JVC also, for some FW update. There isn't any. So from my side i say it's not possible in easy way.

I have tested this solution and since half year aho its working fine under -20 to +50 so it is a solution.
Sent from my GT-I9000 using XDA App

Compatibility
Also tested with FT2232H
This soultion is working , only bug that because of the dual uart the windows device pop up a notification for the second uart driver.
Also working.
Not working with Moxa chip.
Not working with Prolific PL-2303. ( Because the driver for the chip is not going to get open com port in wince 5 :S )
It seems that the only solution is the FTDI chip.

I've made a test with bluepanter and Wayteq and a very old Blaupunkt.
Solution is worked when I changed the usb mode to Host in wince.
It's seems for the blepanter and the wayteq it make not so much sense bacuse you could buy their original accessories.
For the blaupunkt is okay.
Also this could be okay for the 1-2 din chinese gps. Needs to be tested.

Reception improving
I had issue with the tmc reception.
So the solution is make a fm Y cable, and share the outdoor antenna to the head unit and to the tmc receiver.
After the installation, I realised that the reception was not so good, because I miss calculated with the phantom power to my roof antenna, after the phantom power installation everything went fine.
I got reception where I never had it before. TMC news downloading time improved as well.
Take care with the phantom power because it could kill the TMC receiver, use only one way adapter !

hi,
many many thanks for you thread...i had some questions...
i have bought an Dynavin DVN-MC2000 and this unit is without TMC but it have an GPS-In Mother-Usb cable...i think this goes directly to the wince5.0 system.
Where did you buy your RT-3000 and do you have the complete name of the FTDI Modul?!
Maybe we can develop a solution together i could make fotos from my open DVN-MC2000 if it helps

Maybe a ohoto would be great.
I bought the tmc unit in hungary in an avarage shop.
About ftdi i had one in my work desk. But it doesnt matter the meaing is it should any type which is supporting from the wince ftdi driver side. See ftdi web.
Sent from my GT-I9000

Hello all!!
I've been reading the post and I have to congratulate you, very interesting!
If you do not mind I'll use this thread because I want to ask you a question, I haven´t found any response in any expert forum.
I have a problem with my car radio. It is a chenese radio with GPS and TMC integrated.
From the beginning the TMC worked correctly but It had problems with the GPS. It didn´t work properly (may be the driver was wrong or it was bad installed on the WIN CE5). The provider din´t give me a solution and I found a forum in France. There someone sent me an European WIN CE 5 ROM with the GPS installed a working properly. The problem is that this guy didnt have any ROM with the TMC driver integrated and now I dont have it installed.
My actual state is: WIN CE + GPS HW (installed and working) + TMC HW (not insalled)
My question is:
How could I install the TMC in my radio WIN CE5? The HW exists but my WIN CE 5 does not have the drivers and of course the IGO can not find it.
Thank you very much!
pd: sorry about my english!!!

elmike1980 said:
Hello all!!
I've been reading the post and I have to congratulate you, very interesting!
If you do not mind I'll use this thread because I want to ask you a question, I haven´t found any response in any expert forum.
I have a problem with my car radio. It is a chenese radio with GPS and TMC integrated.
From the beginning the TMC worked correctly but It had problems with the GPS. It didn´t work properly (may be the driver was wrong or it was bad installed on the WIN CE5). The provider din´t give me a solution and I found a forum in France. There someone sent me an European WIN CE 5 ROM with the GPS installed a working properly. The problem is that this guy didnt have any ROM with the TMC driver integrated and now I dont have it installed.
My actual state is: WIN CE + GPS HW (installed and working) + TMC HW (not insalled)
My question is:
How could I install the TMC in my radio WIN CE5? The HW exists but my WIN CE 5 does not have the drivers and of course the IGO can not find it.
Thank you very much!
pd: sorry about my english!!!
Click to expand...
Click to collapse
From the first i need to know what kind of tmc chip do you have. Royaltek/GNS and after that we can get closer to the problem. Qhit the upper sokution you can put in the driver if we will figure out the chip manufacturel.
Sent from my GT-I9000

I am sure that the integrated chip is GNS tipe.
The only thing that can hapen if we install a wrong driver is that it would not work, wouldnt it?
But the other things would work good...
thank you!

elmike1980 said:
I am sure that the integrated chip is GNS tipe.
The only thing that can hapen if we install a wrong driver is that it would not work, wouldnt it?
But the other things would work good...
thank you!
Click to expand...
Click to collapse
Generally yes.
But first. You will need to do some test. I will post it later. Because right now in this days i have a lot to do. I wont forget your problem so i will post it here what to check first to start your problem solving....
Sent from my GT-I9000

thank you very much!
I will wait for your answer.
regards.

please dont forget me!!
bye!

Dony worry i wont
Sent from my GT-I9000 using XDA App

Hello Guika,
Where did you get your Chinease GPS 100? can you send me the link?
Thanks,

cjean said:
Hello Guika,
Where did you get your Chinease GPS 100? can you send me the link?
Thanks,
Click to expand...
Click to collapse
http://www.car-audio.hu/?base=items&filter=cat&type=item&catid=0&cid=141&id=714
Sent from my GT-I9000

elmike1980 said:
thank you very much!
I will wait for your answer.
regards.
Click to expand...
Click to collapse
I found something maybe from your IGO8 folder is missing one file called gpstmc.dll
Check this forum
http://www.mobilepassion.org/viewtopic.php?t=2355

I will check it.
Anyway I think that I need the driver for TMC receiver. I have the HW but it is not installed. Do you know were could I find TMC drivers for Win CE 5? with them the problem would be solved-install and the IGO would take it automatically (I had it installed the first time, but the GPS didnt work).

How do mtcmusic, mtcradio send out status messages to car

Hello,
I've got an Eonon MTCB unit (with Malaysk 4.4.4) on a Opel/Vauxhall Astra H (MK5).
The way the car is designed means that I get to keep my old LCD display in the dash, positioned above the MTCB unit.
The original car music player displayed current song title or radio station name on that display.
The MTCB unit displays much less useful info like "MUSIC MM:SS", "RADIO", "AVIN" or "OTHER", depending on current input source, but never
something specific like song name or radio station name.
I would like to reverse engineer how the unit sends out these messages so that I can send my own, more meaningful ones.
The unit came with a CAN bus decoder, so I bet that's how messages go out. However, regarding the software side I have no clue.
Does anyone have an idea how I can go about this?

Someone tried to change that thing. There other threads to. But no solution at the moment because it takes a very long time (I believe to read that) :/

Seicane H6044L-L can_app.iap missing

I bought this Android 9.1 stereo on eBay. The seller sent me the wrong one and won't return it. I wanted an am radio and Android 8.1 but this one doesn't come with it. Anyways. I went to install the steering wheel controls for a BMW through the settings but I get "Using a local file to upgrade:/mnt/udiskh/canupdate/can_app.iap Does not exist". It came with a BMW canbus box. Does anyone have that file or know where to get it? I emailed Seicane and they never got back to me. There is so many problems with this unit. Ugh. The reverse camera doesn't shut off. No steering wheel controls. No AM radio.

Software errore
Hello i have the same problem iv installed the screen 48 hours ago and iv put the can buss on bmw x3 and same problem missing files and i cant find it online
Software version 19.10.23a c.15 i need help please
Care model x3 2008
Email: [email protected]

[MTCD/E/P] CanBus app reverse engineering

I have started reverse engineering the HCTCanBus app.
The reason was that I wanted to display the outdoor temperature in my custom launcher.
But one thing in advance that was only possible because I built my own cunBus box. The radio can only process data it receives and the original canbus boxes only have a very limited number of canBus messages integrated.
The data from the box is transferred to the Android system via the serial port "/dev/ttyV0".
What I found out was that the steering wheel buttons are not transmitted to this serial port.
But all other data with the correct format is transferred there and processed by the HCTCanBus app.
So we can use it to implement our own messages.
I also managed to send data back to the box.
The serial port is not used for this...
The original app processes data on the door contacts, air conditioning, parking sensors and TPMS.
These are at least the things I've found out so far.
In the original app is the handling of the data for the different settings in the factory settings for the canBus.
For each manufacturer there is a file that decides what the message means and how it is to be processed.
I own a Chrysler 300C and use the setting "30 CHRYSLER(Bagoo)".
I have only worked on this. Because I have no access to the data of the other manufacturers.
To read this data from the code is almost impossible with decompiled code, at least for me...
So far I only integrated the door contacts as activity.
For the other displays my car simply does not provide any data (air conditioning) or I have not yet been able to identify the correct can messages (TPMS, radar sensors)
What I have integrated, because of which I have built my own box, is a settings window where I can for example set the events when the radio is switched on or off.
I have uploaded the current state of my work to github.
Even if I am still in the middle of my work it might be interesting for some people.
I would be happy if others would join in and we could integrate the canBus message for the other manufacturers.
github.com/zebbel/MTCD-E_CanBus
Sorry but it's annoying to post stuff here when you can't even insert links...

Hey, zebbel.
You're up to a pretty good start, keep up the good work!
I've also started research in that direction, decompiled HCTCanBus.apk with apktools and started looking at smali code.
(It's pretty readable to my surprise)
But soon I came to the conclusion that there is not much we can do from only the android side.
Canbox itself translates commands it gets from UART into CAN messages using custom firmware on the box. And that is the problem - we don't have access to it.
So, to extend the functionality of "HU-CanBox-Car" system we would need to re-engineer not only CanBox hardware (I've seen some reverse-engineered schematics laying around the forum somewhere) but also it's firmware. A hell of a lot of work, if you ask me...
PS: I personally own Citroen DS5 with HU from Peugeot 508, PX6 platform 4G/64G and PA-SS canbox module. The good thing that almost everything working oob. The sad thing is my pretty "analog" dash clock are not working - That's why I start digging into this, just to find that Canbox App ignores the Time changes completely (e/g not sending to CanBox any information on Clock updates)

Hi All,
I have been doing work on this already, see my post's here, we already have the canbus apk sources.
https://forum.xda-developers.com/showpost.php?p=81859661
darkspr1te

Hi, totally new on this just a questions with a new head unit 8227L and steering control. My car is a jeep compass 2008, the android unit os 9.1 XY Auto 3.3 seems to have some factory set options with can bus for many models but not for the jeep compass, I already identify the cables can high and low and imagine they need to be connected to key 1 and key 2 on the head unit but at the moment no luck with the right can bus selection, any ideas?

Hector114 said:
Hi, totally new on this just a questions with a new head unit 8227L and steering control. My car is a jeep compass 2008, the android unit os 9.1 XY Auto 3.3 seems to have some factory set options with can bus for many models but not for the jeep compass, I already identify the cables can high and low and imagine they need to be connected to key 1 and key 2 on the head unit but at the moment no luck with the right can bus selection, any ideas?
Click to expand...
Click to collapse
Is it an MTCD and is the question related to canbus reverse engineering or solving a problem with your headunit.

No, 8227L units are not MTCD/E.

Hal9K Android Head Unit - New User, with out a user's Manual

Greetings XDA Forum,
I am writing from Australia. A few days ago, I purchased a 2nd Hand Car.....a VW Multivan. This car has the Hal9K v3.1 Head Unit. (px5 Android Version 8)
The seller showed me some of the features with this Head Unit, when I did the test drive........Before buying the car, the seller said that he will remove his information from the Head Unit.....Upon collecting the car, he informed me that he Reset the Head Unit.....Now all of the wonderful features that he had shown me are gone.....He did not give me a user's manual, (he doesn't have it)......I have been able to discover some videos on Youtube.....but nothing that really shows me how to set up the Head Unit, and customize it to match my car, and my desires.
For example:
In the Head Unit Set-up, will like to Select the VW and Mulitvan setting, so that when I reverse, it displays a Multivan......I can easily locate the VW symbol, but can't find a Multivan/Transporter option, in the selection of cars in the list....at the moment, the visual shows a normal car. On the Test Drive, the reserve image displayed a Multivan, and the seller made a strong "Selling Point" of the positivity and customizing ability of this Head Unit. I will like to Customize the Head Unit to my specifications.
The Audio-input (3mm socket) doesn't respond, and there is no audio-in App, but there is an AVIN app (Audio-Visual-input).....so I cannot use my iPod (yes, an iPod...I am Old School).
I will like to set-up Apple Car Play, so that I can:
use the TomTom navigator app from the iPhone, onto the Head Unit.
make calls from the iphone contact list.
...........but I can't seem to understand how to create the connection between the Android Head Unit, to the iPhone.....Perhaps I need an app that will let the two Operating Systems work together. (iPhone connecting to Android Head Unit)
Prior to discovering this forum, I have been using the head unit. I am connecting the iPhone to the Head Unit, using "Bluetooth" & an internet "Hotspot"...I can receive & make calls, I have my iPhone attached to the windscreen, and I can select a contact from the iPhone, which then appears on the Head Unit as a number, not as the Contact name. I am using my gmail account through the Head Unit for Navigation purposes, which works great......But I wish to Customize it, to operate the TomTom navigator which is already on the iPhone.
I hope that you guys & gals can help.
All advice, suggestions and ideas, are truly appreciated.
Thank you.
Stephen

You need to look at this section of xda. Find your correct model from the "about" section of of settings, find the operating system installed for that model and follow all the guides.
This section will have all the answers you need
Head Units
forum.xda-developers.com

jbgooner said:
You need to look at this section of xda. Find your correct model from the "about" section of of settings, find the operating system installed for that model and follow all the guides.
This section will have all the answers you need
Head Units
forum.xda-developers.com
Click to expand...
Click to collapse
Thanks for your reply jbgooner......I clicked on the link that you shared, and I couldn't locate the MCU that matches the system in my car. The MCU in my car is: MTCE_HA_V3.30_1
I then completed a search for MTCE_HA_V3.30_1 and received no matches.
I am a complete beginner with these Android Head Units.....it seems that a person does require some computer skills (perhaps in computer programming??) to set up and customise these Head Units for the Make & Model of the Car......I am slowly researching what I can and realise that I have entered an entire new world of technology, that I didn't know existed. It will be pretty cool to understand this technology and use it accordingly.