Does anyone out there who has developed on a dev board attached to a Mac OSX machine's USB port know how to send AT tty modem commands to the board? Arduino folks? Anyone?
TL;DR
I purchased a development STEVAL-SPBT2ATV2 "USB Dongle for the Bluetooth class 2 SPBT2532C2.AT module", which, according to the docs and spec has "downloaded FW, enabling the user to create a Bluetooth link with simple AT commands."
Which would be great, except all the documentation is only for old MS Windows, and doesn't give any hints on how to program this device from OSX or Linux.
Do I need to install a driver of some sort? Everything I've tried is like talking to a brick wall: I send commands, but nothing comes back from the board.
Things I've tried:
/dev/tty.Bluetooth-Modem already existed. Didn't seem to do anything. I think that's the built-in bluetooth device.
/dev/tty.AmpedUp-AMP-SPP and /dev/cu.AmpedUp-AMP-SPP showed up when I went to "Network -> set up bluetooth device" - which is good (correct device name) but strange, why under network?
Then under Bluetooth I can add a "serial port used to connect to this computer" and get the choice of Modem or RS-232. I guessed Modem.
I really hope I don't have to mess with the /etc/tty files
Nothing. the device never seems to react, or send any data back. I've tried several ways to send data to the device. Silence.
echo "AT+AB GPIOConfig 2 O^M" > /dev/cu.AmpedUp-AMP-SPP # ctrl-v ctrl-m for the ^M
screen /dev/tty.AmpedUp-AMP-SPP
cat /dev/tty.AmpedUp-AMP-SPP
minicom # via brew
chat /dev/cu.AmpedUp-AMP-SPP
From the docs:
Each dongle has the following factory default:
UART: 115200 baud, no parity,1 stop bit,8 data bits
Local name: “Amp'ed UP!’
Class of device: Misc Device
Profile: SPP (serial port profile)
Service name: “AMP-SPP”
Deep sleep: disabled
Page and inquiry scan: 1.28s interval, 11 ms duration
Security: disabled
Bonding PIN: “1234”
Bonding allowed: always enabled
I figured out where I was wayyy off-base with some help from a friend.
I thought that I was trying to establish a OSX->Terminal->Serial (Over USB)->Chip communication channel to program the chip.
When in reality, I was trying to establish a OSX->Terminal->Serial (over Bluetooth->Bluetooth) -> Chip channel to talk to the chip using the existing firmware, which includes enough defaults to have 4 GPIO/LED outputs. The USB only comes in later if I want to change the firmware.
Which means plugging the board into my laptop's USB port isn't necessary and only complicates the issue - better is plugging it into a spare USB charger next to my laptop.
... Which let me narrow down the problem to 2 things:
OSX isn't holding an open bluetooth communication channel to the BT device, so of course I won't be able to talk to it, even if the serial port is set up right
Even if I could talk to it, Apple iOS is so locked down that I won't be able to connect to it from an iPhone/iPad. :(
Related
Trying to test my program. Plugged my arduino in. Got a message saying it's drawing too much power and the USB ports have been disabled. Now when I go to tools > port, the "serial port" option is grayed out. I've tried powering the arduino with the 9v battery, but the battery started to get hot, so I disconnected it again. I've found solutions for this on Linux and Windows but as far as I can tell absolutely nobody uses macOS if they don't have to. It just so happens that I have to.
The MacOsx protect USB ports, disconnecting if the current drain is too high. Its good to not burn the USB port.
The fact of battery is get hot, indicates that your board is consuming much current. Can be a short cut, deffect in board, or in any that you plugged in Arduino.
Please try connect the Arduino without any wire connections in battery,
if still get hot, your Arduino board has burn-out and must be replaced.
How can I monitor all USB traffic on OSX? I downloaded the USB monitoring extensions from the Apple Dev website and ran USB Prober. Nothing shows up when I start the monitoring, and there is data being sent to and from the USB device while monitoring.
I found 2 similar topics on this site, but neither gave an answer aside from using libusb. I was hoping I wouldn't have to write my own monitor from scratch using libusb. Seeing as the questions were asked in 2010, I'm hoping tools have been developed since then to accomplish this on OSX.
It's possible in high sierra (and maybe older versions), you'll need Wireshark's nightly build (I am using V2.5.0rc0). After you install it, you'll need to bring up the USB "interface":
sudo ifconfig XHC20 up
And after that you can use wireshark to sniff all the traffic in the XHC20 interface. When you finish, remember to turn the interface down:
sudo ifconfig XHC20 down
Source: aud-ios.
USB Prober doesn't log all USB traffic. It only logs USB/HID driver messages (diagnostic/info messages posted by USB/HID drivers).
I've never tried libusb for this but I suspect that it can't capture all USB traffic ether (but I could be wrong).
If you're at all serious about monitoring USB traffic you should consider a hardware USB Protocol Analyzer like the Beagle 12 from Total Phase: http://www.totalphase.com/products/beagle_usb12/
Or the USB Explorer 200 from Ellisys: http://www.ellisys.com/products/usbex200/index.php
You might be interested in contributing to this kickstarted project:
http://www.kickstarter.com/projects/bushing/openvizsla-open-source-usb-protocol-analyzer?ref=card
usbtracer is included in USB Prober.app:
https://developer.apple.com/library/mac/qa/qa1370/_index.html
no HTML anchors there, so search for
"Where do I find the usbtracer tool and how can I use it?"
i don't know if it shows all traffic or not, but at least in my case it shows something, and USB Prober shows nothing
I have an Arduino application talking over USB to an application on Windows 8 using the MAVLINK protocol. The connection appears as COM3.
Is there a Windows application that can spy on this connection and display the traffic going in both directions? Raw bytes are fine, I don't need the protocol decoded.
You could log serial port activity using Portmon. (Edit: You need to first connect to the local computer via the Computer menu, and you must start capture on the port before a program opens it.)
You may not want to log USB traffic. Such a log would include a lot of extra information relating to the USB to serial adapter which is providing COM3. Portmon would only give you the bytes transferred over COM3, and the Mavlink protocol is entirely contained within that data stream. If you're sure you want to log all USB traffic to and from that device, then I recommend SnoopyPro. In Windows 7, you need to run it as administrator.
If you can use Windows XP in your environment, USB sniff should work for you. If you need something more powerful (and are willing to pay a fee for it) then USBLyzer might be a viable option.
The answer is SnoopyPro, and you can download it at:
SnoopyPro Sourceforge
This tool allows you to get USB information and also USB communication data. I used it in the past to know how a USB device worked in order to do its driver on Linux. I used this tool as a sniffer.
Basically, SnoopyPro allows you to intercept, display, record and analyze the USB protocol and all transferred data between any USB device connected to your PC and applications. It can be successfully used in application development, USB device driver or hardware development and offers the powerful platform for effective coding, testing and optimization.
I am trying find out how and with which program for OSX (10.5.8) I can configure serial ports? I am trying to establish a wireless connection between two Xbee´s (RF modules) and cannot figure out how to use ZTerm nor screen under Terminal. The setup I am using is: an Arduino+Xbeeshield+Xbee with external power supply, and an xbee on the xbee explorer connected to the Computer via USB.
I am trying to gather information on this through various forums, but most of them cover the configuration issue for PC using X-CTU (which I tried with CrossOver but it doesn´t recognize ny of my ports). According to one source, using screen under Terminal should show me all my serial ports, particularly /dev/tty.KeySerial1 - but it doesn´t show, even though I´ve plugged in both my arduino+xbee shield and the xbee on the explorer.
/dev/tty.KeySerial1 is incorrect.
First step is to get the FTDI USB driver installed if it has not yet been installed. The fastest way to determine if it is installed or not is to connect the XBee Explorer board. Then go look in /dev for a device named tty.usbserial-XXXXXXXX (Xs will be a unique hex ID). If you see multiple devices like this, then you probably have the Arduino plugged in too and you will need to disconnect it to determine what the device name is for the XBee Explorer board.
Once you know the device name, all you need to do is the command "screen /dev/tty.usbserial-XXXXXXXXX 9600". That should do it for you.
You can configure the tty device itself using stty. Be sure to redirect input from the terminal you want to configure, as stty operates on it's input. For instance, to set a serial port to 9600, no parity, 8 data bits, and 1 stop bit, aka "9600N81" in Windows parlance, try:
stty 9600 cs8 -cstopb -parenb < /dev/tty.usbserial-xxxxxxxx
Programmatically, you do this by opening the serial port and using the termios(4) ioctls on the device. See the termios(4) man page for more assistance.
I'm looking for a very specific USB device for debugging systems that may use USB but not with a regular computer (proprietary hardware). I want a device that has a USB host controller and two USB device connections. The device to be debugged is connected to the USB host controller and one of the device connections is connected to another device with it's own host controller on it. The the other device connection is connected to a pc. The point being that all USB data travelling through the device (from the device connected to the host controller to the device connected to the first device connection) is reported to the pc.
I'll happily write software to do the logging (in fact I want to) but I can't seem to find a board like this anywhere. Can anyone help?
I have an Ellisys USB analyser, which isn't exactly what you describe internally, but does sit between a peripheral and a host and use a separate PC to collect the data.
(i.e. it has two 'B' and one 'A' connectors on it.)
Excellent product, and very helpful company.
Sniffing the USB shouldn't be too hard if you have the right hardware. And that is the tricky question. I haven't seen anything that describes the USB breakout box that you want. However I can say that this is in the realm of the following two magazines:
Nuts and Volts
Circuit Cellar
If they don't have a USB breakout box project in their archives, then at least they will have advertisements for small cheap single board computers that would have multiple USB ports that you can use for buffering the signals and reporting it back to your PC.
Alternatively is it possible to just wire your PC up to the middle of your two devices and write a custom drive that echos data back and forth while sniffing off a stream for you?
Sorry for the long delay in my reply -- I checked out one of our USB developer's toolchain, and he uses a Beagle USB Sniffer. He seems happy with it.
You're looking for a USB device with two upstream outputs. I think according to the USB spec, this is not possible. You will have two USB hosts trying to send messages and control the USB devices at the same time.
What if you were to look for a device which allowed you to view the data going through a hub via something other than a usb output?
If you're building something custom, take a look at this USB chip site. The chips are programmable via a windows application. Once you define how you want it to operate, it's saved on an EPROM on the dev board ($30-$50).
Sorry if this isn't helpful!