Dear all,

I'm very sad to say that I feel like Tom Hanks in Cast Away trying to make the usb component work. I have been trying for days and the only results that are comming out are red circles with white X inside them, errors.

The one I'm stuck with is " L127: UNRESOLVED EXTERNAL SYMBOL SYMBOL: USB_MIDI1_InqFlags " main.obj (MAIN) line 0, after building the project and this is what show in the .map file  " USB_MIDI1_InqFlags . . . . . . . . . . . . ---      ** UNRESOLVED **  MAIN "  .

I don't have a clue from where this error is originating. I tried to follow / understand the USB-MIDI example project but most of the code is new to me and I couldn't find any info, unforutnaly. Not even Google couldn't explain it. All I'm trying to do is interface the 001 kit to a music program via midi. So its only the USB component with midi settings and a couple of switches. I can't understand why it's this complicated. Please I'm really in need of some help and experience from you guys. PLEASE HELP.

Thanks a lot.

Best to post a bundle of the project so forum can look at.

In Creator, "File", "Create Workspace Bundle", and post it.

Regards, Dana.

The commented sections are parts which I guess I don't need. These are mainly the UART sections. Basically it's the code in the example project which I tried to modify for my use. Don't hesitate to comment cause I'm still green in coding. Thanks for the help.

Cheers.

You define the following to be external, but I see no definitions

made in rest of workspace.

extern volatile uint8 USB_MIDI1_InqFlags;
extern volatile uint8 USB_MIDI2_InqFlags;

So drop the extern part of the declaration, it compiles for me in 2.2 service pack 5

Regards, Dana.

Find attached a Cypress example for MIDI

Bob

Thanks guys I don't know what to do without you. I have deleted the extern and it worked just fine. What I did is I added a USBFS component and configured the MIDI part instead of adding a ready made USB-MIDI (with UART), just to save resources. I will continue to work on it today and will keep you posted.

One last thing. Can some one please explain what the exten meant in this code?

Thanks a lot.

Oh ok I get it. Can some one please explain these instructions cause I'm still hovering in space:

USB_EP_MM

USB__EP_DMAAUTO

USB_MIDI1_InqFlags

USB_INQ_IDENTITY_REQ_FLAG

Please bear my ignorance but I couldn't find any meaning on the web.

Thanks a lot

External variables, and difference between declaring and defining variables -

en.wikipedia.org/wiki/External_variable

Regards, Dana.

Thanks a lot every one. Your help is priceless. I'm still hoovering in space but little by little I'm getting closer to earth with your help.

Thanks.