Getting Started: Running the “Device
– Audio
Configuration
1: PICDEM FS USB
Configuration
2: PIC18F87J50 PIM
Configuration
4: Low Pin Count USB Development Kit
Configuration
5: PIC18F46J50 Full Speed USB Demo Board
Configuration
6: PIC32 USB Starter Board
Configuration
7: PIC24F Starter Kit 1
Configuration
8: PIC18F Starter Kit
Configuration
1: PICDEM FS USB
Configuration
2: PIC18F87J50 PIM
Configuration
4: Low Pin Count USB Development Kit
Configuration
5: PIC18F46J50 Full Speed USB Demo Board
Configuration
6: PIC32 USB Starter Board
Configuration
7: PIC24F Starter Kit 1
Configuration
8: PIC18F Starter Kit
Using
Garage Band ’08 [Macintosh Computers]
To run this project, you will need one of the
following sets of hardware:
PICDEM
FS USB (DM163025)
PIC18F87J50
Plug-In-Module (PIM) (MA180021)
Explorer
16 (DM240001)
USB PICtail™ Plus Daughter Card
(AC164131)
And one of the following PIMs
PIC24FJ64GB004
Plug-In-Module (PIM) (MA240019)
PIC24FJ256GB110 Plug-In-Module (PIM) (MA240014)
PIC32MX USB Plug-In-Module (PIM) (MA320002)
Low
Pin Count USB Development Kit with PICKit 2
Debugger/Programmer (DV164126)
or without Debugger/Programmer (DM164127)
PIC18F46J50
Full Speed USB Demo Board (MA180024)
PIC32 USB Starter Board (DM320003)
PIC24F
Starter Kit 1 (DM240011)
PIC18F Starter Kit (DM180021)
This
section describes how to set up the various configurations of hardware to run
this demo.
Configuration 1: PICDEM FS USB
Configuration 2: PIC18F87J50 PIM
Configuration 4: Low Pin Count USB Development
Kit
Configuration 5: PIC18F46J50 Full Speed USB Demo Board
Configuration 6: PIC32MX USB Starter Board
Configuration
7: PIC24F Starter Kit 1
Configuration
8: PIC18F Starter Kit
1)
If using the PICDEM FS USB Demo Board, no hardware related configuration or
jumper setting changes should be necessary.
The demo board need only be programmed with appropriate firmware.
1)
Short JP4 on the PIC18F87J50 PIM. This
allows the demo board to be powered through bus power.
2)
Short JP1 such that the “R” and “U” options are shorted.
1)
Before attaching the PIM to the Explorer 16 board, insure that the processor
selector switch (S2) is in the “PIM” position as seen in the image below.
2)
Short the J7 jumper to the “PIC24” setting
3)
Before connecting the PIM to the Explorer 16 board, remove all attached cables
from both boards. Connect the PIM to the
Explorer 16 board. Be careful when
connecting the boards to insure that no pins are bent or damaged during the
process. Also insure that the PIM is not
shifted in any direction and that all of the headers are properly aligned.
3a)
If using the PIC24FJ64GB004 PIM, please insure that the programming port
switch is switched in the PGX1 direction.
4) On the USB PICTail
Plus board, short jumper JP1. Remove all
other shorts on the board.
5) Connect the USB PICTail
Plus board to either of the female PICTail Plus
connectors or on the card edge connector (J9) at the edge of the Explorer 16
board.
Note: When using the HID bootloader
for PIC32, it is important to modify the procdefs.ld
file to relocate the sections of code that will hold the bootloader
and those sections that will hold the user application. Example modified procdefs.ld
files have been provided with each project.
This file is currently named “Procdefs.ld.boot”. When using the example project with the bootloader it is required to remove the “.boot” section of
the file. This will allow MPLAB to use
this file instead of the default linker file.
Once the linker file is renamed, however, the project will no longer
work without the bootloader. Please rename the file in order to get the
project working again with PIC32.
1) Short pins 2 and 3 of J14. Make sure J12 is left open.
1) Short JP3 to allow the board to
be powered from the USB.
No specific hardware configuration is required for this
demo.
The PIC24F Starter Kit does not require any hardware setup
to run this demo. This demo does,
however, require the user to change the default selected device in the project
before compiling the demo.
1) Open the associated project file
for C30
2) In MPLAB Select
“Configure->Select Device”
3) In the device list box in the top
left corner of that window, select “PIC24FJ256GB106”
No specific hardware configuration is required for this
demo.
To
run this project, you will need to load the corresponding firmware into the devices. There are two methods available for loading
the demos: Precompiled demos and source code projects.
Precompiled
Demos are available in the “<Install Directory>\USB – Precompiled Demos”
folders. Each demo should be prefaced
with the hardware platform it is compiled for.
Select the file that matches the hardware that you have and the demo
that you want to run. For more
information about how to load a precompiled project, please see the “Getting
Started – Loading a precompiled demo” guide.
The
source code for this demo is available in the “<Install Directory\USB Device
- Audio - MIDI\Firmware” directory. In
this directory you will find all of the user level source and header files as
well as project and workspace files for each of the hardware platforms. Find the project (*.mcp)
or workspace (*.mcw) file that corresponds to the
hardware platform you wish to test.
Compile and program the demo code into the hardware platform. For more help on how to compile and program
projects, please refer to the MPLAB® IDE help available through the help menu
of MPLAB IDE (Help->Topics…->MPLAB IDE).
Please
note that when using either the C30 or C32 demo projects you will be required
to select the correct processor for the demo board.
1) Open the associated project file
2) In MPLAB Select
“Configure->Select Device”
3) In the device list box in the top
left corner of that window, select the desired device.
This
demo uses the selected hardware platform as a USB MIDI device. Connect the device to the computer. Open a
Open Garage Band. If
you haven’t opened Garage Band before you will see an opening window. Select “Create New Music Project”
The next window will prompt you for information about the
song. Change any of the information is
desired. Click “Create” when done.
The
Garage Band main window will open. In
this window there should be a single default track if the USB device is already
attached. At this point you can press the pushbutton on the demo board and it will
cycle through a series of notes and play these notes through the computer
speakers.
In
this example we will be using Linux MultiMedia Studio
(LMMS) available at http://sourceforge.net/projects/lmms/. Install LMMS.
Attach the demo board to the computer.
Make sure to attach the USB Audio MIDI example board to the computer
before opening LMMS as LMMS polls for USB MIDI devices upon opening but may not
find the devices attached after the program is opened.
Click
on the instrument plug-in button and click and drag the desired instrument plug
in to the song editor window.
Once
the new instrument is available in the song editor window, “click on the
actions” for this track button. Select
the “
If
you open this option again you should see a green check mark indicating that
the device is selected as the input.
At
this point you can press the pushbutton on the demo
board and it will cycle through a series of notes and play these notes
through the computer speakers.
PICDEM
FS USB:
PIC18F87J50
PIM:
Explorer
16:
Low pin count USB development kit:
PIC18F46J50 Full Speed USB Demo Board:
PIC32 USB Starter Kit
PIC24F Starter Kit 1:
The PIC24F
Starter Kit 1 does not implement the pushbutton for these demos. This functionality is not present in this
demo.
PIC18
Starter Kit
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