Getting Started: Running the “Device
– Audio – Speaker” demo
Configuration
1: PICDEM FS USB + Speech Playback PICtail Plus Daughter Board
Configuration
2: PIC18F87J50 PIM + HPC Explorer + Speech Playback PICtail Plus Daughter Board
Configuration
1: PICDEM FS USB + Speech Playback PICtail Plus Daughter Board
Configuration
2: PIC18F87J50 PIM + HPC Explorer + Speech Playback PICtail Plus Daughter Board
To run this project, you will need one of the
following sets of hardware:
PICDEM
FS USB (DM163025)
Speech
Playback PICtail Plus
Daughter Board (AC164125)
PIC18F87J50
Plug-In-Module (PIM) (MA180021)
PICDEM
HPC Explorer Board (DM183022)
Speech
Playback PICtail Plus
Daughter Board (AC164125)
PIC18F46J50
Full Speed USB Demo Board
PICDEM
HPC Explorer Board (DM183022)
Speech
Playback PICtail Plus
Daughter Board (AC164125)
Explorer
16 (DM240001)
USB PICtail™ Plus Daughter Card
(AC164131)
Speech
Playback PICtail Plus
Daughter Board (AC164125)
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
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 + HPC Explorer
Configuration 4: PIC18F46J50 Full Speed USB Demo Board + HPC
Explorer
1)
If using the PICDEM FS USB Demo Board, no hardware related configuration or
jumper setting changes should be necessary.
The Speech Playback PICtail Plus
Daughter Board needs to be inserted on the PICtail™
Expansion connector on the PICDEMFS USB
board.
+
Speech Playback Plus Daughter
Board
PICDEMFSUSB board
1) Before attaching the PIC18F87J50 PIM to the HPC
Explorer board, insure that the processor selector switch (S3) is in the “ICE”
position as seen in the image below.
Failure to so will result in difficulties in getting the PIC18F87J50 PIM
to sit properly on the HPC Explorer.
2)
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.
3)
Before connecting the PIM to HPC Explorer, remove all attached cables from both
boards. Connect the PIM to the HPC
Explorer 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.
1) Short JP3 to allow the board to
be powered from the USB.
2) Short JP1 between I and R options.
This connects PWM output (RC2) to the Speech Playback Card.
3)
Before connecting the PIM to HPC Explorer, remove all attached cables from both
boards. Connect the PIM to the HPC
Explorer 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.
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.
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 – Speaker” 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.
Sampling rate of 48 KHz
1 Channel (Mono)
PCM8 Format
Asynchronous Audio Endpoint
In the demo the Feature unit implements only the Mute
Control.
This
demo uses the selected hardware platform as a USB Sound Playback Device.
In
order to run this demo first compile and program the target device. Attach the device to the host with the USB
cable. Start an audio playback at the
host to run the demo.
The Microchip name and logo, the Microchip logo,
MPLAB, and PIC are registered trademarks of Microchip Technology Incorporated
in the
PICDEM and PICTail are
registered trademarks of Microchip Technology Incorporated in the
Microsoft, Windows, and Windows Vista are either
registered trademarks or trademarks of Microsoft Corporation in the