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89 Threads found on Regarding Usb
Native usb interface of my custom designed board around ATSAM3X8E cpu (the one used in Arduino DUE) does not works. I had posted the issue in a thread some time back : but i was unable to get any result oriented answer to fix the issue. Details regarding the issue faced can be seen in t
hi, I'm doing a project for storing data to the usb sent from PIC controller(PIC30F6012A) using Vinculum(VNC2-32L1B) controller through UART communication. I am creating a file in the usb its created well and Read/write works properly.Now what is my problem is the file is created with the default date(1/1/2010 12:00 AM).I want to change
In case this helps, regarding the feasibility of video sources... Digital camera... Mine is inexpensive. It sends a video signal to my tv (either digital or old-fashioned crt). The cable is a common coax type, to the yellow-colored jack. The tv shows the same image as the camera shows. I can playback from the camera's internal memory stick. Or, th
We are having a trouble regarding the firebird V ATmega2560. When we try to connect the Firebird to the PC via usb but it does not detects the robot. I guess we have pressed the reset button and boot button in the wrong sequence and we might have accidently erased the boot loader software. Can anybody suggest the method to connect the firebird V vi
Hi There. I have a usb Sensor Device which I can connect to PC. By installing Driver on PC, I got Virtual COM to send Serial Command to control the Sensor Device. Now I want to control the Sensor Device through MCU UART. Can you advise what interfacing Chip I need to use to achieve Serial Communication between Sensor usb Terminal and MCU UART
Hello Folks I have a question regarding usb. In usb 2.0 Host can only return ACK for correct data. Lets suppose we got corrupted data from slave device then what master(Host) will do ?. If slave didn't got any response then what it will do ? Thanks & Regards Mukesh Goyal
i have some basic doubts regarding fpga. i am studying fpga now. IS fpga have ROM like controller? i got the doubt becasue i read it on one website.
If you are using these interfaces on a PCB then I would suggest you go online and get the relevant details regarding each interface, its layout requirements (impedance, length matching etc.) all of these interfaces have defined standards for usb) a search will get you all the information you require. I keep this (and tons of other document
Hello All, Can anyone please help me in finding out the implementation of usb Device Descriptors at RTL level? Actually, I want to find out how information written by Host into descriptors is communicated to the concerned internal blocks. Suppose, one descriptor that contains information regarding some internal block of device is wr
Hello, I have read all the posts regarding this program but still I am unable to program my ATMega128 via usb. Please help as it is a matter of urgency!!! Thankyou.. Creating load file for EEPROM: on_off1.eep avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" \ --change-section-lma .eeprom=0 --no-change-warnings -O ihex on
Hello I am using PIC16F887 with MPLAB X IDE and Pikkit2. i have bought one pikkit programmer as shown in below the problem is my MP LAB x IDE can not
usb hub usb2514 - implementation doubt I'm using usb2514 to design a BUS powered system which has 3 devices to be connected at present . My doubt is regarding the SUSP_IND/LOCAL_PWR/NON_REM0 pin . My system is bus powered so the pin has to be LOW . The device on my port 1 is non removable so the pin has to be HIGH . (...)
97492 This is a diagram from the MCP3901 reference design. This part is required to connect the energy meter to a PC for calibration. Most of these IC's in the diagram are not available in my local market and even if I import these I can't test it in a breadboard since its packaging is either SSOP or SOIC. My question is
I don't know what you want to achieve with simulation in this case. regarding the said link, jayanth already stated that the circuit can't work as shown. It's not even clear what's the intended pupose of usb interface in this case. Apparently the author has only vague ideas about usb, e.g. when he mentions communication with (...)
i am doing a project speech controlled robotic car ..i have written code for parallel communication. here are the code %%%%%%%% Training Process %%%%%%%% % Prepare the user to record voice 'record your commands' l=0; m=0; avg=0; for j=1:4 'record command' disp(j) input ('You will have 2 seconds
First of all I am newbie in microcontrollers. I have a ATmega8L. I have written my code in C. Code consists 12 lines & programme is straight & simple. I have Run & Compiled my code with no warning & errors in AVR Studio 4.19 & create .hex file. Now to burn this code I used Ponyprogv206f. Ponyprogv207c somehow haven't run in my PC & off course my PC
Hi all. I'm trying to make a data logger utilizing usb interface using a p18f4550. My requirement is that the data converted by the PIC's ADC would be available in MATLAB. I need help regarding the following - I'm confused as to which driver to use in the firmware. Should I go with the HID drivers or the custom MCHPusb drivers by (...)
I have Question regarding the Current limits of usb2.0 COmplaint Power distribution switches... From my understanding, the maximum current drawn from any usb port by a peripheral is 500mA. Please correct if i am wrong. I Have seen usb power distribution power switches datasheets like MIC2077 or TPS2041A etc, the (...)
Hello frnds, I want to send sms via PC through nokia asha 311. I am doing this by using VB6. But i don't have any information regarding to NOKIA asha command list. It means how to send command for sending msgs and how to control my phone??? I am connecting my phone via usb cable. Pls help me.
can some one refer some documents or book regarding 1. usb working 2. pin description(what does D+, D- mean) 3. VHDL code
Hi i cant connect my jdm pro. With pc using serial to usb cable please help on how to connect it with pc step by step as i am new to this..78131
Any usb GSM/3G/4G modem or cell phone, if it have a FCC certification number can you find photos of the antennas at . Dominating type of antenna is multiband PIFA for both modem and cell phones regarding this type of wide band internet connection.
I need a little help with implementing and testing a UART that I have designed. I know to run the UART core on FPGA I will need to use HyperTerminal and then connect the FPGA through usb-UART of my Nexys3 FPGA to usb of my PC. But what I dont understand is which usb port on my PC I need to connect to. I mean there are 3 (...)
Hi, Can anyone Please let me know how to see the data filled in FPGA BRAM(256 x 8) location. I am having Platform cable usb II with me. Is there any possibility to monitor the datas in the BRAM location. Please let me know. Thanks, V. Prakash
Hi all, Can any one please provide me one example code for LM3S9B96 usb application. I am unable to get this on TI web site. Any one having an example regarding usb of LM3S9B96 please mail to me. my mail id: Thank
hello!!! i have selected this project as recommended by you bt i am facing many problems regarding the selection of suitable module.we have searched a module which is using usb port instead of serial port and it is much cheaper than others but the problem is that we have studied everything related to serial port so should we go for it or not?? if y
Hello Sir, In protocol layer CRC (Cyclic Redundancy Check) is used to check errors. The usb specification lists two generator polynomials - one for Tokens packet (ADDRESS + ENDPOINT = 11 bit field) and the other for data packets(0 - 8192 bit field). The generator polynomial for tokens is x5 + x2 + x0 while the generator polynomial for dat
AVR Doper too have no problem at all. regarding changing firmware, I think it is not possible unless the author uploads a new one. I dont have a pcb files. I downloaded it from the net and used it.
i would like to transmit a single character from my C++ program to my usb-Serial port device. how can i start? what c++ program should i use? plus how would i know the PORT ID of my COM port
Dear all, I want to implement usb controller on xilinx/ altera FPGA, my question is- 1. is it possible to directly connect usb data+ and data- pin to FPGA ? 2. is there any additional interface IC needed to achieve the same? 3. please provide links for usb Controller document details Regards Preet
Can you please try to explain which usb port type at which system you are talking about? Generally, you have host and device ports which have different roles regarding supply voltage. Also usb devices can be designed as bus-powered or self-powered.
I need the pcb layout, source code of the atmel 89 series usb programmer if anyone can help me in that......Note that any 89 series usb programmer would work but not SERIAL programmer..... one example of such programmer is here United 7 technologies ---------- Post added at 22:52
did you check the help option inkeil... it has lot of information with respect to your question.... and regarding the schematic it is not open source, they are copyrighted.....
You need to have a dedicated programmer for MSP430. I don't think you can use a avr programmer. You need to have either a paralllel port or usb Flash Emulation tool for MSP430. And use either Code Composer Studio or IAR software. You can find more information regarding MSP430 from TI website.
Hi all... i m working on a project, in which i will transmit sensor's outputs over internet using gprs modem.....right now i m facing problem regarding implementing TCP/IP stack in PIC controller... Any help or supporting material in this regard will be highly appreciated. Thanks
I would suggest you to use Blueboard from ngx electronics which is arm based board and it has everything you want I mean More ram , usb, etc. Now regarding Obstacle detection you can use Proximity sensors or Distance measurement devices like SHARP GD2D12 which you can get from DISTANCE MEA
I want to power my microcontroller board using a 7805 (which receives input power via a DC adapter) and a usb port. Assuming only one of these power sources is active at a time, can i just tie the output of the usb and the 7805 together without using a jumper to select the appropriate power? If I tie the outputs together and use the usb, the (...)
Hi, have you tried the Denali website, they have given a lot of support regarding their products (like web casts, white papers etc).
hi every one! i want to do my semester project on wireless usb.. means i have a usb and a bluetooth device.. i want to get the data from usb and send it via bluetooth to my laptop in real time.. can anyone help me out regarding this... right now i have no idea from where to start... thanks.
Here is an excellent resource for PIC microcontroller: regarding kits, there are plenty of then out there you can either buy or make one on your own. Interface can be usb, Serial or Parallel port depends on programming kit you're using.
i am doing project on FPGA which is development of a usb device core can anyone help me out with the coding. i want to do it in VHDl....... i searched for the code but did not find it thank you.......
I see three reasons for usb core in FPGA. 1. If the requirement of this design is only a few devices, then its not practical to go for ASIC because the NRE cost for an ASIC is too high. So whenever we have the final chip count too low, you can go for an evaluation of FPGA and ASIC costs and decide on which is lower. 2. usb core is implemente
hi, i have earlier posted few posts regarding my project usb device core on a FPGA ...... i would like to know whether a SOF packet is required to be added(written) in the code for a usb device ............... thank you.........
check these topics usb 2.0 core regarding usb device core development on FPGA
Hi all, Pls inform me good PIC32 series Microcontroller for this project? Also Iwant to know will this be succesfull and what are the suitable compilers should I use? If any one has schematics and Example programs in C regarding this please send me. Thanks.....
Lot of posts has been posted regarding usb and Ethernet design in this forum.First check the forum if not available then ask dis type of questions Regards Rajan
Hi all I am using PICDEMFSusb example in MCHPusb - generic driver demo folder of MCHPFSusb framework v2.5a. I am using pic18F4550 for non-microchip board not fo PICDEMFSusb board. I want to use pic18F4550 as a data acquisition card. 1) After the ADC has performed conversion and the data is in ADRESL:ADRESH , now (...)
Hi I have a basic doubt regarding how the communication between usb device and altera up3 board. I was asked to demonstrate a usb device on Up3 board. I tried many usb documents but still i couldnt figure out the what that make to communicate with usb. Any help would be appreciated.
Hi, I am urgently in need of some help in understanding the following, a) How does a PC charge a mobile phone when connected using the usb Data Cable? b) What is the actual signal to and from the PC to the mobile phone? c) Can the same be given through the Serial ports of an ordinary 8-bit microcontroller? If so, how do i decide the signal
i have been going through a serious problem using AT89C5131A-L. i have establish communication between my usb controller and my PC. .but i have no code to control ?c's port pins. what i need is a usb code to transfer my data to ?c's port pins. can anybody help me out........or send me the code for AT89C5131A-L? THANK U ALL! I M WAITING!