USB communication with PIC - Electronic Circuits Projects Diagrams Free

Vizier87 · 21st October 2009, 04:04 AM

Hi guys.. I'm having trouble googling around about this stuff, so here goes.
What is the simplest way to transmit/receive data to a PIC18F4455 which can be directly USB connected to a PC/laptop? I have VB 2008, where some guys said that can be used for this purpose, but i'm getting nowhere...

kchriste · 21st October 2009, 04:34 AM

The easiest way is to use MicroChip's USB framework which is available as a link from the 18F4455 page.

Vizier87 · 21st October 2009, 06:47 AM

Thanks a zillion man. I'm still downloading it with our crappy wireless signal... but I'm good.
So the link is Microchip Application Libraries v2009-08-31.zip right?
Is it a standalone software or is it to be incorporated into a compiler like MikroC?

kchriste · 22nd October 2009, 02:31 AM

Yes. the zip file contains a bunch of code. The USB framework is part of that.
The code is in C which is compatible with MicroChip's C18 compiler which can also be downloaded for free. The free student edition will work fine and even when it "expires", it still compiles but just with some optimizations turned off. I think the code also supports HiTech C. It did when I was playing with it a year or so ago.

Russ Hensel · 22nd October 2009, 04:42 PM

Also see the USB Bitwacker which implements usb and has a usb bootloader

Arkham00 · 23rd October 2009, 02:51 PM

Follow the previous suggestion from Russ Hensel: UBW.

It's a complete USB PIC project with a "firmware" (Firmware ver 1.4.3) that implements simple text commands to drive PIC I/O pins. The commands are sent using a sort of "usb serial emulator" so a simple VB 2008 program can drive the PIC board.

Vizier87 · 24th October 2009, 04:18 PM

Yeah.. I got VB 2008, but how do I get to the part which configures the USB outputs of my laptop? The software is like... too general for me.

Vizier87 · 24th October 2009, 05:05 PM

Quote:

Originally Posted by Arkham00

Follow the previous suggestion from Russ Hensel: UBW.

It's a complete USB PIC project with a "firmware" (Firmware ver 1.4.3) that implements simple text commands to drive PIC I/O pins. The commands are sent using a sort of "usb serial emulator" so a simple VB 2008 program can drive the PIC board.

The UBW can be recognized by the specific software provided, right? But how about PIC184455 which is wired directly so that the USB connection is configured? Can it detect that as well?

Kchriste: I've just completed downloading the software. I'll need to maneuver it before using it properly. Thanks.

3v0 · 24th October 2009, 08:04 PM

The UBW software connects to the PC as a virtual COM port. No specific software needed.

3v0

Vizier87 · 25th October 2009, 04:26 PM

so that means the PIC18F4455 which is directly USB-connected is recognized after installing that software? I mean the MCHPFSUSB_Setup.

**Nigel Goodwin** · 25th October 2009, 04:43 PM

Quote:

Originally Posted by Vizier87

so that means the PIC18F4455 which is directly USB-connected is recognized after installing that software? I mean the MCHPFSUSB_Setup.

As long as the PIC is programmed accordingly - but I'm not sure what you mean by 'directly USB-connected'?

Arkham00 · 25th October 2009, 06:51 PM

Look at this tutorial:
UBW tutorial

UBW is just a generic PIC18F2550, 4550, 4455 board with a bootloader and an optional program (named "firmware" in the tutorial) that enables the UBW to be connected to a PC as a virtual COM. From a PC program that is able to connect to a serial port (from Hyperterminal to VB6 to Delphi to VB.NET to ...), you can control every PIC pin. The tutorial helps you in finding the correct driver in the microchip usb software.

Russ Hensel · 25th October 2009, 06:52 PM

If you want to talk to the ubw from the pc ( not programming but afterword ) two easy ways are to use liberty basic ( examples from the ubw guy ) or processing which is often used with the arduino, lots of examples out there.

Vizier87 · 26th October 2009, 07:31 AM

Quote:

Originally Posted by Nigel Goodwin

As long as the PIC is programmed accordingly - but I'm not sure what you mean by 'directly USB-connected'?

What I meant is that the connections are made according to the schematic:
http://www.electro-tech-online.com/a...1&d=1256538457

.... and connected to the USB port of my netbook, only that I'm using 18F4455 rather than 18F2455. Thanks for the UBW link, I'm exploring them now.

**Nigel Goodwin** · 26th October 2009, 08:43 AM

Quote:

Originally Posted by Vizier87

What I meant is that the connections are made according to the schematic:

You mean just like the UBW, or any oither 18F PIC cicruit.

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21st October 2009, 04:04 AM	#1
Vizier87	USB communication with PIC Hi guys.. I'm having trouble googling around about this stuff, so here goes. What is the simplest way to transmit/receive data to a PIC18F4455 which can be directly USB connected to a PC/laptop? I have VB 2008, where some guys said that can be used for this purpose, but i'm getting nowhere... __________________ -The kinda guy who would improvise so much that you'd say "Here's 50 bucks for your Gigantron" http://vortexelectricaz.blogspot.com

21st October 2009, 04:34 AM	#2
kchriste	The easiest way is to use MicroChip's USB framework which is available as a link from the 18F4455 page. __________________ Inside every little problem, is a big problem trying to get out.

21st October 2009, 06:47 AM	#3
Vizier87	Thanks a zillion man. I'm still downloading it with our crappy wireless signal... but I'm good. So the link is Microchip Application Libraries v2009-08-31.zip right? Is it a standalone software or is it to be incorporated into a compiler like MikroC? __________________ -The kinda guy who would improvise so much that you'd say "Here's 50 bucks for your Gigantron" http://vortexelectricaz.blogspot.com

22nd October 2009, 02:31 AM	#4
kchriste	Yes. the zip file contains a bunch of code. The USB framework is part of that. The code is in C which is compatible with MicroChip's C18 compiler which can also be downloaded for free. The free student edition will work fine and even when it "expires", it still compiles but just with some optimizations turned off. I think the code also supports HiTech C. It did when I was playing with it a year or so ago. __________________ Inside every little problem, is a big problem trying to get out.

22nd October 2009, 04:42 PM	#5
Russ Hensel	Also see the USB Bitwacker which implements usb and has a usb bootloader

23rd October 2009, 02:51 PM	#6
Arkham00	Follow the previous suggestion from Russ Hensel: UBW. It's a complete USB PIC project with a "firmware" (Firmware ver 1.4.3) that implements simple text commands to drive PIC I/O pins. The commands are sent using a sort of "usb serial emulator" so a simple VB 2008 program can drive the PIC board.

24th October 2009, 04:18 PM	#7
Vizier87	Yeah.. I got VB 2008, but how do I get to the part which configures the USB outputs of my laptop? The software is like... too general for me. __________________ -The kinda guy who would improvise so much that you'd say "Here's 50 bucks for your Gigantron" http://vortexelectricaz.blogspot.com

24th October 2009, 08:04 PM	#9
3v0	The UBW software connects to the PC as a virtual COM port. No specific software needed. 3v0 __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time)

25th October 2009, 04:26 PM	#10
Vizier87	so that means the PIC18F4455 which is directly USB-connected is recognized after installing that software? I mean the MCHPFSUSB_Setup. __________________ -The kinda guy who would improvise so much that you'd say "Here's 50 bucks for your Gigantron" http://vortexelectricaz.blogspot.com

25th October 2009, 06:51 PM	#12
Arkham00	Look at this tutorial: UBW tutorial UBW is just a generic PIC18F2550, 4550, 4455 board with a bootloader and an optional program (named "firmware" in the tutorial) that enables the UBW to be connected to a PC as a virtual COM. From a PC program that is able to connect to a serial port (from Hyperterminal to VB6 to Delphi to VB.NET to ...), you can control every PIC pin. The tutorial helps you in finding the correct driver in the microchip usb software.

25th October 2009, 06:52 PM	#13
Russ Hensel	If you want to talk to the ubw from the pc ( not programming but afterword ) two easy ways are to use liberty basic ( examples from the ubw guy ) or processing which is often used with the arduino, lots of examples out there.