USB access using PIC and VB

[arunb]

Hi,

Is it necessary to make a device driver for USB based applications, at present I am using the RS 232 port for communications. (PIC 16F628 and PIC 16F877 )

I understand I need to go in for another PIC that has a USB controller which is alright with me.

The software I am using is MPLAB/MPASM and Microsoft Visual Basic 6.0.

Do I need additional software to develop USB based applications.

Thank you
Arun
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This message was ported from CCS's old forum
Original Post ID: 13084

[Lance Lascari]

As others have recommended, ftdi has some neat USB products. I'm currently working on a project with one of the '245 parallel fifos. They provide drivers and some example programs using the drivers on the PC (they have VB, VC++, and many more examples).

You could use these chips with pretty much any micro. I elected to buy a module with the chip mounted on it (and the usb connector) for quick prototyping. 'twas only $40 from saelig. The chips themselves are only a few dollars and have some neat features. Check them out at the link provided.

<a href="http://www.ftdichip.com/" TARGET="_blank">http://www.ftdichip.com/</a>

Lance

:=Hi,
:=
:=Is it necessary to make a device driver for USB based applications, at present I am using the RS 232 port for communications. (PIC 16F628 and PIC 16F877 )
:=
:=I understand I need to go in for another PIC that has a USB controller which is alright with me.
:=
:=The software I am using is MPLAB/MPASM and Microsoft Visual Basic 6.0.
:=
:=Do I need additional software to develop USB based applications.
:=
:=Thank you
:=Arun
___________________________
This message was ported from CCS's old forum
Original Post ID: 13086

[bean]

:=Hi,
:=
:=Is it necessary to make a device driver for USB based applications, at present I am using the RS 232 port for communications. (PIC 16F628 and PIC 16F877 )
:=
:=I understand I need to go in for another PIC that has a USB controller which is alright with me.
:=
:=The software I am using is MPLAB/MPASM and Microsoft Visual Basic 6.0.
:=
:=Do I need additional software to develop USB based applications.
:=
:=Thank you
:=Arun

Jan Axelson has a good book on USB called "USB Complete". She also has a good website with sample PIC code and sample VB code.
<a href="http://www.lvr.com/usbcode.htm" TARGET="_blank">http://www.lvr.com/usbcode.htm</a>
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This message was ported from CCS's old forum
Original Post ID: 13104

[Hans Wedemeyer]

I second this.

FTDI will give you the fastest speed, whereas many other designs use a HID driver which typically do not have much data through put.

Currently I'm do a 4 channel USB 12 ADC and should approach the maximum of about 1 Mega BYTE /second . I doubt the other approach would allow me to get hat kind of speed.

Also the FTDI drivers are easy to use and free.
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This message was ported from CCS's old forum
Original Post ID: 13159

[arunb]

:=Hi,
:=
:=Is it necessary to make a device driver for USB based applications, at present I am using the RS 232 port for communications. (PIC 16F628 and PIC 16F877 )
:=
:=I understand I need to go in for another PIC that has a USB controller which is alright with me.
:=
:=The software I am using is MPLAB/MPASM and Microsoft Visual Basic 6.0.
:=
:=Do I need additional software to develop USB based applications.
:=
:=Thank you
:=Arun

Hi All,

Thanks a lot for the information.

Arun
___________________________
This message was ported from CCS's old forum
Original Post ID: 13228