USB Development Kit

PaulK · Joined: 08 Dec 2004 Posts: 2 Location: Norfolk, UK

I've been using the CCS USB Development Kit and so far everything has worked fine with PCWH V4.013 and ICD-U40.

Now I would like to write my own PC application to communicate with the USB PIC. This would be a replacement for the OScope example. However, the OScope example is written in a form of Pascal whereas I would like to write in MS C++ (.NET).

I think I am right saying that I can use the same USB Bulk Driver as supplied by CCS, but I'm not sure how to connect to it. The OScope example opens a '\\.\BulkUSBDemoDevice0' file and does fairly standard reads/writes on it. Is this the way to do it?

I've tried opening the file but this has always failed so far. Is there a particular open mode, share mode, permission mode to use?

Thanks
Paul

Douglas Kennedy · Joined: 07 Sep 2003 Posts: 755 Location: Florida

Doing standard reads and writes will work. Another approach is to use Microchip's device driver. With this you don't have to mimic a standard device but can call directly the usb driver to discover enumerated ( Microchip) devices and select one to open r/w and close. Look in the code section of this board for ideas.