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Hi I used to drive the 3G usb modem from my application using AT commands over virtual com port Modern 3G usb modems are not listed as virtual comm ports , How can I drive them? Can I use my old applications with them? Regards Hossam
I am trying to use STM32Cube to generate a VCP usb device framework for the STM32F302CB micro. It works fine for a STM32F405 chip and a STM32F103 chip. But on the 302, it just wont enumerate properly? The only differences I can see are the 302 supports usb Device only, while the others have OTG support. Has anybody got the STM32F302 wor
Goggle for 16Fusb
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.
Just interface the GSM/GPRS or GPS device to usb port of PC and in Proteus use comPIM. With this setup you can simulate GSM/GPRS, GPS, RFID projects.
I assume you are looking to connect to a virtual com port via usb if you look in the Toolbox there is a SerialPort component which enables one to open a com port and send/receive data
read_adc=x; putchar(x); Meaned this? x=read_adc();putchar(x); AVR ADC outputs 10-Bit data, so the code isn't particularly useful. And you want to write the data to usb rather than UART, where is the data sent by putchar()? If you send binary data over usb through virtual com port protocol, you usually want some kind
Hi all, I'm trying to implement virtual com port functionality in atxmega32a4u.I actually downloaded asf example code and i've modified that code with somw LUFA library functions.so,when i connect the usb cable between pc and xmega after flashing code ,device is not detecting.can anyone help on this problem its very important for me to (...)
Hi all, I'm working on xmega32a4u to develop VCP application using usb CDC when i insert the usb to host is detecting,But the problem is in Docklight when i'm opening com port it's not opening.could anyone please help me if any suitables that u met. Regards Maheshkar
hello, So, in your PC you must have a vrtual com port ,linked to your usb/bluetooh interface ? and you need also a service (program) to establish this link after you can use the created virual com port with your Basic Program.. Do you know BlueSoleil application ? (or another programme to get the virtual port !) an (...)
I have the same effect with FTDI usb TTL cables and Teraterm When the usb TTL cable is connected a virtual com port is created and Teraterm can connect to it as though it is a real hardware port such as com1:. When the usb TTL cable is disconnected the virtual (...)
VCP is virtual com port as u told. But this is com port virtually and implemented in usb. usb software written for working as com port. and ur end user like software or hyper terminal it gets com port. AS VCP is good bcoz now a days every pc have (...)
CDC is a protocol specification, virtual com port is a MS Windows interface to access different communication channels (e.g. usb, RS232 remote servers, Bluetooth devices with serial protocol) as if they where connected to a physical com port.
Hi, I have to control 8 different devices from windows XP through RS232 interface. I purchased 8 usb to RS232 adapter and connected to my system. Hyper terminal works fine reading all adapters. The problem starts when I start reading/writing RS232 with C (or Matlab). I use Microsoft visual C++ 2010 express which can't work with those many ada
You can use a FT232 usb <-> UART bridge, FTDI already provides the needed (PC side) driver and wrappers for direct communication or virtual com The D2xx examples are located Silicon labs has similar chips
You can look at the usb to serial TTL converter cables from FTDI - there are a variety available with either flying leads, or 2.5mm pitch connectors, and either 3.3V or 5V logic versions. The drivers for these are readily available and it will oeprate as a virtual com port on your PC so you can use Hyperterm, PuTTY, or terminal emulator of (...)
You can't simulate without modem but you can see the commands the micro sends to modem even if there is no modem. If you want to see modem responses then connect modem to com port or usb port if you have one then use virtual Serial Port Emulator and create a Mapper device and Map your com port to Virtusl (...)
You said that the MCP3551 is installed as a usb-HID device, why then are you trying to use it as a virtual com port? If the PIC18F4550 is pre-programmed with a usb-CDC that implements a virtual serial port operation, then what you are try to do is possible. But this doesnt seem to be the case. The product (...)
CP2102 is used in usb to serial adapter. You have to use MAX232 to interface RS232 side to TTL side of uC. I don't know whether you can use the same programming software which works with com port to programm using usb port. usb ports are shown as com16, etc... (as virtual (...)
Microchip has lof of info for usb device. I was use CCS compiler for program to communicate PIC->PC via usb by virtual com-Port
Helllo. I have a 5600 nokia phone (old i know) i need to connect it to my pc via usb to test the at commands So far, i've downloaded virtual serial port driver 7.1 to simulate a com port I start hyper terminal, i select the com port created I go type AT in the hyperterminal console (i can see AT, (...)
Please give us more detail. Is the output to the computing device usb? Does it use a virtual com port? Do you know the communication protocol? Have you tried to connect it to a serial terminal program?
Good day. May I ask something. Is any one know where I can find a virtual usb Hasp software? Thank you in advance.
I've not used the AT89C5131 (and not really any Atmel - I use PICs and TI chips mostly), but from a quick scan of the datasheet it has a built-in usb interface and this document ( ) describes how it is used in the virtual com port mode. If your PC is not recognizing it as a com port, then the MCU is probab
1.Use an RS-232 to to usb covertor and connect to laptop. I hope that the convertor will have a virtual com port driver and so I can use Hyperterminal. That is generally easier and cheaper. So if that constitutes "bettter" for you go with that. Those usb/RS232 converters will show as a virtual (...)
If you want to send SMS using you PC you can use the mobile set software from your PC (Nokia PC suit, I guess) Do you Know AT commands ? If no then don't complete the post Use the mobile cable itself (usb or serial ) and it will be read as a virtual com port where you can select it from the drop (...)
Most people are setting up the usb part as CDC device and control it through virtual com port, keeping the previously used serial commands.
An usb UART is, most likely, an integrated usb-to-RS232/TTL converter. Have a look here FTDI Products . It is one of the manufacturers of that kind of converters.
Why don't you buy a parallel to usb cable. it's not so hard to find one with a reasonable price.
BUT without loose ends, I would like it to come with usb-headers in both ends. It's an usb to serial converter. What should be the purpose of a second usb header?
Hello guys! I need to build a MATLAB GUI that can read and display real-time data from my usb port. It will work like a virtual oscilloscope. I cant do that! Who can help me? If you have any files that can help, please email me tks in advance!
Dear All, is any one using usb as virtual comport. we are using stm32f103 controller and usb as virtual comport. communication is getting disturbed frequently and some times even it is shown in device manager as stmvirtual (...)
I'm looking for a usb stack VCP (virtual com port) for LPC23xx / LPC24xx series microcontroller The application provided by keil work fine , but is complex and takes too many resources of the MCU. I need the application should be very simple That do only the essential, rx tx data :???:
can anyone share a schematic of a usb-based oscilloscope? thanks!
hi, i am using kiel rtx with lpc2148 for usb-CDC(virtual com). every thing is fine and i have sensed the usb connection with "usb_Configuration" in the program. but couldnt sense the disconnection. is there any way to sense the disconnection of the device
I make usb to serial "module", and now I want for beginning, turn LED on my circuit with PIC(I made this standalone, without PC)... Or just read some data from PIC via usb on PC... I use MPLAB and CSS for programming in c. Now I need "help" to programme in visual c or anything else to make driver for ft232? I use also "putty" for terminal.
hi, Could u plz send me drivers for gtb usb programmer for windows 7 Or can i use it through virtual box? i gt an error code 10 when i try to use it through oracle VM.
hello everyone, i need help. i have a device and that device uses cp2101 bridge so it can connected to usb as a virtual com port i looked in the device manager and i found it defined as com3. so can i send and receive data to it serially using hyperterminal even if its conneced to usb and not to serial (...)
At the moment, I have a working circuit of MX045 clock (20Mhz) connected to PIC18F4550 which have communication to PC through usb connection with virtual com port (MCHPFSusb - Installed on circuit). I am able to give and get commands from Hyper Terminal. For my project I need to connect (...)
I am working with an ARM board , there is a usb serial section .I have used Ft232Rq . Due 32Qfn pack i somehow soldered with a DIY hot air pencil. I have run the VCP (virtual com port) driver setup in vista . While i plug in the board with usb cable , laptop says " usb device is not recognized (...)
Hi Friends, I had a microcontroller board evaluation board. I connected that board to the computer with a usb. I want to send some data using the Hyper terminal in windows XP. But Hyper terminal can send data the Serial com ports for communication. Hyper terminal can not send data to the usb ports. (...)
You can use usb hid communication or virtual Serial port. There is no need of driver for Hid and driver for virtual Serial port is available with the compiler(like CCS). You can also do this with MikroC. See the below link Good Luck.
Dear Experts, I want to interface a nokia mobile which has Mini usb port with Atmel Micro controller to send AT commands. I cant use old mobile which have RS232 support as i have to use Symbian S60 based mobile. I dont want to use micro controller with on chip usb host support or an external usb to Serial Host chip (...)
I want to make a data acquisition in matlab can I use usb port with matlab ???
I've compiled succesfully the LPCusb library (used as virtual com), and it "run", but when I connect the usb to the PC, the microcontroller generate an exception "dabort". Very few times this doesn't happen and it functions fine, but the most times not! Can someone give mean advice about this issue? (...)
get PIC18F4550 mcu from microchip, download MPLAB, C18 and Microchip usb framework from microchip website, use project called "CDC basic demo" for PICDEM board, modify in it, compile and build, download hex file on the PIC, your PC now will see a virtual com port, you can now send data to and from the microcontroller using (...)
most simple solution is go and buy a good RS232 to usb converter and this will create virtual com rest as u want
This is a cheap alterantive to the National Instruments interface. I'm not sure if the national instruments drivers will work with this. Has anyone used this unit? Approx. $65 USA
I suggest you download the Microchip usb Development Source. There are bootloaders, drivers and examples for all the types of implementation.And If you want to use Hyper Terminal you have to use the virtual com Port Driver.You have to do the following (ADRESH<<8 )+ADREHL and transmit.All the leading compilers have (...)
I am designing a virtual com port from usb using Tusb3410.I have download the driver from TI website and is works very well.But I can't download the source code.There is some error on the web page.Maybe server's problem(I am in China) Have anyone downloaded it successfully?Could you send it to my email,please?Really really (...)