A USB host port implements the upstream end of a USB connection
0
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0answers
13 views
Can USB 3.0 device initiate communication with USB 2.0 computer? [migrated]
I want to copy files from a computer with USB 2.0 support to an external drive with USB 3.0 support, but do not trust that the external drive is free of malware. Can a USB 3.0 device initiate ...
-3
votes
0answers
43 views
raspberry pi auto [closed]
Got a question on the raspberry pi, can you have an autoexec type file like in the old pc dos.
Am thinking of trying to make a pi download my photos from a card reader to a usb stick when travelling.
...
0
votes
2answers
69 views
Arduino Clone is not talking to my Mac
When I plugin my Osepp Uno (off-brand of Arduino Uno), the LED flickers a bunch, then the RX and TX lights do the same. But when I
ls /dev/ | grep -i usb
I get ...
3
votes
2answers
91 views
“Wireless” USB cable, via RF / 3G
I'm looking into the feasibility of a project to develop a USB-over-RF device for physical penetration testing engagements. The idea is that our tester could connect a device to a USB port on a ...
0
votes
1answer
117 views
Arduino MEGA ADK: read data from usb(not serial)
I'm new on this field and I've spent my last 3 days searching for a way to read some data from a usb device(http://www.willow.co.uk/TelosB_Datasheet.pdf). It sends packets of 12 octest and all I want ...
0
votes
0answers
33 views
Replacement for ISP1760
We have been using ISP1760 in our designs with Altium Nanoboard. The design uses a shared menory between the SRAM, USB interface, Flash component. Now, the USB controller for the Nanoboard ISP1760 is ...
0
votes
0answers
92 views
VDIP1/VNC1L: command failed when setting the baudrate for the device
In order to interface a USB device with an AVR microcontroller I'm using an FTDI VDIP1, that is a development module for the VNC1L chip which provides USB host capability.
The USB device that I need ...
-1
votes
1answer
658 views
What exactly are the difference between a USB host and device
Came across some doubts:
What exactly are the differences between a USB host and device? Is it just that who powers the bus?
When two devices connect how the device say "hey I will be the host and ...
3
votes
1answer
164 views
Circuit explanation, role of the trimpot and capacitor, as shown in a part of the circuit
Here is a part of the IOIO circuit
.
Wondering if someone could explain the role played by the trimpot (R2) there (why not a fixed resistor?) and the role of the capacitor (C5).
1
vote
3answers
237 views
Are pull-down resistors included in the mbed USB ports?
For the mbed LPC 1768, I am trying to establish a USB connection with an external device (pins 31, 32, and 39 for D+, D-, and Vbus, respectively). According to USB in a NutShell: Connectors, a 15kΩ ...
0
votes
1answer
98 views
USB hosting options
I'm looking at a USB hosting application for the PIC platform, and it just seems that none of the compilers have good stacks available for USB hosting (though I've used CCS for usb devices with no ...
1
vote
3answers
324 views
Drawing 100mA / common ground for a bus-powered USB hub
I am trying to provide an external 5V power supply to a (previously) bus-powered USB hub.
My first attempt at this was to just connect the USB host's data pins to the hub's data pins, and the ...
0
votes
1answer
228 views
Does Arduino ADK shield for android, serves like a regular USB host shield?
I'm from Argentina and the guy whom I bought the Arduino accesories from doesn't have any USB hosts. But he has this.
I'm not interested in connecting an Android phone to it but I certainly would in ...
8
votes
5answers
7k views
Can an Android tablet serve as USB Host and be charged simultaneously through a single port?
A number of Android tablets are powered through the Micro B USB port but also provide USB Host support through the same port (e.g. Motorola Xoom 2, Acer A510/700). I need to be able to use USB Host ...
2
votes
1answer
485 views
iPad Doc connector: is it possible to using the camera connection kit while charging the ipad
I'm building a touch screen kiosk using an iPad and a USB BarCode Scanner (through the camera connection kit).
the problem:
The pinout here shows the USB pin that the scanner would connect to. ...
0
votes
2answers
290 views
USB Device Sharing
I have a product (or concept of) based on a microcontroller acting as a USB host to control a given device. The device also needs to be controlled by another device (host). Assume that my device has ...
6
votes
1answer
4k views
Converting passive USB Hub to powered USB Hub, by adding regulated wall-wart as power supply?
From a quick price-check on ebay,
Passive (bus-powered) USB Hubs - ~ $2-$5
Powered (externally) USB Hubs - ~ $15-$20
My use-case is to expand the no. of USB ports on a ARM-based SBC, and to embed ...
4
votes
1answer
351 views
USB host-mode on uC, to support small pre-defined set of USB devices
Apparently, one of the main reasons why most 8-bit/16-bit uC's do not support USB host-mode operation is because of the rather expensive process called "enumeration". From my research, this step seems ...
1
vote
1answer
2k views
FT232R eeprom problem .. how to make PC recognize it
it's my first time to use FT232R ..
when i connected it to the USB for the first time .. my Windows recognized it well, and its drivers were successfully installed ..
and even after programming it ...
3
votes
2answers
301 views
Can USB host controllers be used for device identification?
Does any USB host device provides any unique IDs which are available from USB controller to device? At software side, I can get the vendor ID (along with other hardware identification data such as ...
5
votes
1answer
587 views
TI LM3S ARM Cortex M3 with USB 3G Modem
I've got a TI LM3S Cortex-M3 Development board with USB host. I've done quite a bit of TCP/IP programming through the Ethernet and using SPI/UART GSM modems, but I was wondering the feasibility of ...
2
votes
1answer
352 views
PIC 32 interface to Logitech force feedback USB joystick
I am doing a project which requires interfacing the Force feedback USB joystick to a microcontroller, I came across pic32 which has USB hosting capability, now my question is: do I need to develop the ...
4
votes
4answers
2k views
Is it possible to use a Microchip PIC32 as a USB host and device at the same time?
I'm designing a system and maybe (if I don't find better alternatives) I will need to use a PIC32 as a handler in between two USB devices and a host. My plan is to use the PIC32 to hide the devices, ...
6
votes
4answers
532 views
Microcontroller acting as USB host for an audio device
Are there any microcontrollers which are able to act as a USB host for audio devices?
Basically I'd like to create an interface which allows my to connect my USB headset to the analog ...
