314 Threads found on edaboard.com: Usb Example
I want to send something to my computer with usb interface. I am using AT32UC and atmel studio 6. there is example project but it doesn't work for me. when I plug it in to my computer I receive this error " A request for the usb device descriptor failed.". could you please tell me, what I should do?
Microcontrollers :: 03-26-2017 12:07 :: hamidkavianathar :: Replies: 5 :: Views: 776
I have a Hantek 6022BL PC usb Oscilloscope which I would like to use on linux. Hantek does not provide linux solutions but I found a wiki which refferes to openhantek.
However, openhantek was last updated in 2011 which is a bit old. Are there other known wa
Linux Software :: 02-18-2017 22:32 :: zainka :: Replies: 0 :: Views: 5562
I would suggest inserting a usb stick or DVD with a bootable version of Linux on it, Ubuntu for example. That will demonstrate whether the problem is hardware or software as none of the original software will be touched, it will boot entirely from the DVD. If it does boot up that way, you can run diagnostics or even repair the Windows installation
General Computer :: 01-29-2017 20:00 :: betwixt :: Replies: 10 :: Views: 6238
I want power my LED using I-Phone lightening connector.
Have anyone tried to do that or Did you have any suggestion for me?
For example:- Powering a usb fan. Instead of usb ,I want to use I-Phone to power on my LED.
Power Electronics :: 12-17-2016 14:17 :: Manivannan M :: Replies: 0 :: Views: 377
Hi a question has come into mind related to these HF HAM commercial transceivers. How do these handle the SSB and LSB related to the oscillator frequency? I can think of two cases. It is better to present an example, to understand my question.
For both cases LOSC=10MHz and transmitter baseband modulating audio signal=1KHz tone.
RF, Microwave, Antennas and Optics :: 10-20-2016 09:55 :: neazoi :: Replies: 7 :: Views: 355
We could use Z-turn board as an example. FPGA program of ZYNQ is conserved on RAM, you should redownload it when you electrify the board each time. We could utilize platform cable usb DLC9 to download it, vivado version is 2014.4. JTAG interface of Z-turn board could be used to download and debug program of ARM and FPGA, ARM and FPGA are linked to
Embedded Linux and Real-Time Operating Systems (RTOS) :: 09-29-2016 08:32 :: MYIR :: Replies: 0 :: Views: 1448
I?m trying to build a midterm system between a costly and highly custom VPX and a platform where each board interfaces with one another by cables.
imagine I have an off the shelf mini-itx motherboard, a switch, and 2 network video encoders
my idea is to have a back plane that would supply power, serial communication (if requ
Hobby Circuits and Small Projects Problems :: 06-03-2016 16:56 :: Sancrip :: Replies: 0 :: Views: 367
Trying to interface M590 with Arduino Uno. example sketches did not work. Then I connected GSM to my laptop via usb to serial FTDI module. Using arduino serial monitor, communication with GSM Module seems alright as all AT commands responded by M590 module is correct.
But M590 module does not recognize the SIM card. It says SIM FAILURE.
Digital communication :: 05-01-2016 13:51 :: Abdul Rauf Jangda :: Replies: 0 :: Views: 1351
When I connected a newbie LPC11u68 to usb port,it recognized in windows as an usb mass storage device.When I programmed LPCOPEN HID example by Flash magic to it,after resetting the board,my PC can't recognized it.Only when I pulled down PIO0_1(ISP selection pin)it still recognized as a Mass storage device.???
Microcontrollers :: 04-18-2016 06:53 :: dizgah :: Replies: 4 :: Views: 724
iam trying to follow this Sparkfun project example
I will be powering the circuit by a 3.7v single cell Lipo battery with built in protection board. Also I will be using the usb power to charge the battery when usb is plugged in.
I have few questions though:
1) in the first diagram picture I am not sure what they mean by "Vin must (...)
Analog Circuit Design :: 03-14-2016 04:49 :: aliyesami :: Replies: 5 :: Views: 616
That means that differencial pair is used, like in usb, Ethernet, CAN and e.t.c, but most simplest example.
Elementary Electronic Questions :: 10-13-2015 10:08 :: Easyrider83 :: Replies: 4 :: Views: 979
I've a question.
I'm still not quite understand when we should use SRC(synchronous) and when we need to use ASRC.
For example, If I need to get the I2S audio stram form the HDMI receiver chip. Can I use SRC(synchronous)?
It look like if you want to play the audio from the usb source you need to use ASRC.
Thanks in advace for a
Digital Signal Processing :: 09-22-2015 02:27 :: kudjung :: Replies: 0 :: Views: 696
They are just numbers allocated by Windows when it sees a serial port. The numbers themselves have no meaning, they are just to identify which port is to be used. The hardware allocated the number may be different from one port to another, for example, one may be a usb serial port and another may be RS232.
PC Programming and Interfacing :: 07-26-2015 21:34 :: betwixt :: Replies: 2 :: Views: 619
any microcontroller with a usb device interface would probably support a simple project such as this, e.g.
will you be writing the PC software? if so which language C++, C#, VB.NET, etc and which protocol, e.g. HID, Winusb, etc
look for example code for both the micro fir
Microcontrollers :: 06-25-2015 12:10 :: horace1 :: Replies: 4 :: Views: 609
I want to make an application in Labview which can communicate with PIC18F45K22 using UART. Please help me how to make the Labview file. It should be bi-directional that is I have to control PORT of PIC using Labview and also display the ADC value on Labview.
Microcontrollers :: 05-25-2015 07:31 :: milan.rajik :: Replies: 2 :: Views: 1008
I have a board with LPC2364 proccessor. i run usb mass storage application(IAR example) on my board and it work. but when I changed my start address of application from sector 0 to sector 2 and debug my application, it can't work.and stop or hang in bellow line ( h
// Init SCSI module
Microcontrollers :: 05-13-2015 07:41 :: shirvanitsh :: Replies: 0 :: Views: 386
i tested HID read write on a Startusb 18F2550..
need to have a bootloader allready intalled, to be able
to detect the usb deviceby PC HID terminal.
Microcontrollers :: 05-11-2015 05:55 :: paulfjujo :: Replies: 2 :: Views: 891
Here is worked example where we send and read data from ModBus Energy Meter using usb<>RS485 adapter:
Hope this help you.
Linux Software :: 04-24-2015 07:20 :: Kuzito :: Replies: 1 :: Views: 4632
I am new in the filed of Cortex-M3 and using LPC1343 micro-controller for my project, which also requires a usb HID.
I found usb HID demo in Keil example folders and by using the usb Stack i created my project, which is exactly similar to example project provided by Keil.
I have to send (...)
Microcontrollers :: 04-18-2015 13:41 :: xpress_embedo :: Replies: 0 :: Views: 823
I wanted to know why a certain component might require some minimum clock frequency in order to operate.
For example, I read somewhere that
when the usb interface is used in an application, the clock input must be at least 18 MHz in
order to support internal operations of the usb block...
Embedded Linux and Real-Time Operating Systems (RTOS) :: 03-22-2015 10:26 :: vreg :: Replies: 4 :: Views: 827