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ShipModul MiniPlex-42USB
#1
Hi,

I'm using a ShipModul MiniPlex-42USB to combine my nmea183 data. Untill now I connected out-1 to a serial to usb convertor to get the data to the raspberry.

I saw somebody else was trying to connect a shipmodul multiplexer (altough a never version if i'm remembering correctly) in the cruiserforum thread. This was before the usb manager was in place and I don't think it was mentioned again in that thread.

So, here it goes:

Miniplex is getting data on channel 1 from a laptop running VDRplayer and outputting that on the serial port.

Miniplex is recognised by raspbian

Code:
pi@openplotter:~ $ lsusb
Bus 001 Device 008: ID 046d:c326 Logitech, Inc.
Bus 001 Device 007: ID 05ac:921b Apple, Inc.
Bus 001 Device 006: ID 046d:c52e Logitech, Inc.
Bus 001 Device 005: ID 05ac:911b Apple, Inc.
Bus 001 Device 004: ID 0403:fd49 Future Technology Devices International, Ltd ShipModul MiniPlex-4xUSB-AIS NMEA Multiplexer
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@openplotter:~ $

Code:
pi@openplotter:~ $ dmesg | grep tty
[    0.000000] Kernel command line: 8250.nr_uarts=0 dma.dmachans=0x7f35 bcm2708_fb.fbwidth=1680 bcm2708_fb.fbheight=1050 bcm2709.boardrev=0xa02082 bcm2709.serial=0x5c05c3b0 smsc95xx.macaddr=B8:27:EB:05:C3:B0 bcm2708_fb.fbswap=1 bcm2709.uart_clock=48000000 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.001339] console [tty1] enabled
[    1.871184] 3f201000.uart: ttyAMA0 at MMIO 0x3f201000 (irq = 87, base_baud = 0) is a PL011 rev2
[    5.533914] usb 1-1.2: FTDI USB Serial Device converter now attached to ttyUSB0
[   47.055980] ttyUSB0: 6 input overrun(s)

The usb manager recognises the usb device as well.

[Image: 2016_05_18_18h52_37.png]

[Image: 2016_05_18_18h52_54.png]


When I open Inspector, no nmea183 data is shown.

any ideas?
Reply
#2
Do you press apply changes?
Are you sure bauds are 4800?
Are you sure you have data traffic?
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#3
(2016-05-18, 06:59 PM)Sailoog Wrote: Do you press apply changes?
Are you sure bauds are 4800?
Are you sure you have data traffic?

it was the baudrate. It needed to be 57600. I've should have checked that  Blush

thx for pointing it out!
Reply
#4
Here is the typical problem. You have a multiport FTDI Chip 4232.
Delete your sentence with remember by device. (this blocks recognizing the other 3 ports)
Open add Window again
-now you will see 4 ports! But only difference is the port number not the serial -> so you must select remember by port
-do it with all 4 ports
Thats it.
Keep in mind that you bound the serial ports to the USB port. (When you change the USB port, the udev rule doesn't find the ports)
Reply
#5
i don't realy see the difference.

if i remove the usb device and press the add button again I get the folowing screen:

[Image: 2016_05_19_18h35_35.png]
Reply
#6
Sorry i was wrong its only one port and you already solved your problem.
There are some multiport serial adapter on the market but shipmodul isn't a multiport adapter.
Reply
#7
It might be a good idea to start a thread with the different Multiplexers people have tested so we have a compatibility list. Maybe accompanied by any special settings that where needed to get it running. As more people will start using this it will be helpfull to have this in the documentation.

Is there allready information available on this topic? I saw one other post about another multiplexer, but that is about it.
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#8
Good idea. I have written this sticky post: http://forum.openmarine.net/showthread.php?tid=109
Might be valid for other devices too...
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