Question

I/O data transfer in the USB ports

Asked by: mbrlaser

Do you Know some API or ActiveX to control the transfer of data in the USB ports from an application in Delphi?

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Asked On
2004-01-13 at 18:52:04ID20850323
Tags

delphi

Topic

Delphi Programming

Participating Experts
4
Points
250
Comments
8

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Answers

 

by: robert_marquardtPosted on 2004-01-13 at 22:30:44ID: 10111414

This is not possible. USB is not a serial line but a serial bus.
Data transfer is not port oriented but device oriented.

Please tell what you want to achieve.

Manipulations are only possible from driver space.

 

by: mbrlaserPosted on 2004-01-14 at 09:14:36ID: 10112522

I have hardware that communicates with the PC for the serial port, but some people are requesting me to develop a system similar with communication USB. Now we are using a USB to RS232 converter, but the idea is to avoid the converter and to connect the system directly to the USB. There are electronic components as the SP5301 that are USB transceiver but what I don't know is as carrying out the communication with the administration software that this in the PC.

 

by: k4hvd77Posted on 2004-01-14 at 12:59:12ID: 10114542

Hi,
Try HID controller (http://www.delphi-gems.com/Controls.php), there is some examples too.

k4hvd77

 

by: robert_marquardtPosted on 2004-01-14 at 21:31:51ID: 10117846

k4hvd77, my HID component will not help.

As i expected. Changing a RS232 device into an USB device is not that easy.
Better ask about it on the USB IF forum http://www.usb.org/phpbb/viewforum.php?f=1

 

by: GwenaPosted on 2004-01-15 at 11:24:35ID: 10123109

Go to http://www.lvr.com/usb.htm  there is a bunch of info re USB there.

It is Jan Axelson's site... she is really good at this stuff :-)

 

by: maximo_nashirPosted on 2004-03-02 at 08:31:31ID: 10496441

I need to know how can I work with a fingerprint that send
a signal by the usb port.
  I need to take the signal that come by the usb port.
  I have to do a program in delphi that work with the fingerprint device and I don't know how can I take the signal of the usb port..

  Help me Please :-)

 

by: maximo_nashirPosted on 2004-03-02 at 08:32:04ID: 10496447

I need to know how can I work with a fingerprint that send
a signal by the usb port.
  I need to take the signal that come by the usb port.
  I have to do a program in delphi that work with the fingerprint device and I don't know how can I take the signal of the usb port..

  Help me Please :-)
My mail is: maximo_nashir@yahoo.com

 

by: robert_marquardtPosted on 2004-03-02 at 08:49:25ID: 10496598

1. ask a question on e-e yourself
2. like any public board the answers go to the public board to allow all users to learn from the answers

20120131-EE-VQP-002

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