communication between microcontorller and PC using USB

[kushal nandanwar]

I want to communicate my microcontorller(PIC18f4550) with PC using USB, can someone help me in it.

 

[nick703]

u have to use UART communication using FTDI232R chip and other way to use CDC class to communication using USB interface to pic.


below link to use cdc communication.

https://www.engineersgarage.com/contribution/pic-usb-cdc-device-interfacing

and for uart communication

https://microcontrollerprojects00.blogspot.in/2012/03/pic-serial-communication-tutorial-uart.html

 

[milan.rajik]

I can help with mirkoC PRO PIC code for USB HID Communication. You have to use USB HID component like EasyUSBHIDNetClass.dll

 

[kushal nandanwar]

How it work?

 

[horace1]

if you download and instal Microchip's MLA (Microchip Library for Applications)
**broken link removed**

and look in directory (directory name may vary depending on MLA release date)
C:\microchip\mla\v2013_12_20\apps\usb\device\hid_custom

you will find the firmware for the PIC18 and under utilities code for C++, C# and VB.NET for a PC Windows host to communicate using the HID protocol

 

[milan.rajik]

Check my project here. https://www.edaboard.com/threads/271146/

 

[xxtigerxx]

Yes PIC has USB.

But the FTDI is more easy to use and more quick. Just a UART.

 

[horace1]

xxtigerxx is correct in that an FTDI USB-serial cable connected to a UART is probably the simplest way to connect a PIC to a PC using USB
our recent boards (PIC24, dsPIC and PIC32) tend to have both
1. a header to connect to a FTDI USB-TTL serial connected to PC using teraterm which is used for testing board functions and setting it up
2. a USB HID interface to a PC application (written in C++, C# or VB.NET) which has a GUI interface for the end user

even in applications where the end user has not specified USB we tend to put the footprints on the PCB but don't popuate them or include the USB code - we have found end users often ask for a USB GUI interface later on

 

[kushal nandanwar]

Thanks horace I used MLA , which help me ,when I connect my micorcontroller with PC it's show USB connection in device manager, but i want to transmit and receive data using USB for that i want to use V.B. Is that possible

 

[horace1]

if you are using the HID custom app there is VB host code in directory
C:\microchip\mla\v2013_12_20\apps\usb\device\hid_custom\utilities\plug_and_play_example\windows\src\vb2008_express

never used the VB myself - I used the C++ sample code and implemented a C++ DLL that is used by C++, C# and VB

 

[kushal nandanwar]

How can I get C++ dll

 

[horace1]

How can I get C++ dll

there are many tutorials on the web, e.g.
https://msdn.microsoft.com/en-us/library/ms235636.aspx

you have to be careful in the function parameters etc otherwise you can get types that don't exist in other languages

 

[Venkadesh_M]

Gui interface is also possible with Ftdi mode, you have to select the com port though. Its the easiest way of completing project.

But if you want to learn USB for fore coming projects. then go on with usb.