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314 Threads found on Usb Example
Hello 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? thanks
Hi 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
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
Hi All, 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.
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. Case 1: When switc
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
Hi, 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. for example: 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
Hello, 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.
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.???
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 (...)
That means that differencial pair is used, like in usb, Ethernet, CAN and e.t.c, but most simplest example.
Dear All, 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
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. Brian.
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
Hello 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.
Hi all 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 ScsiInit(); __enable_in
hello, 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.
Hi, Here is worked example where we send and read data from ModBus Energy Meter using usb<>RS485 adapter: Hope this help you. Regards KMtonic
Hello!! Everyone 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 (...)
Hi, 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...