DM240415 Microchip Technology, DM240415 Datasheet - Page 23

• Manufacturer Part Number: DM240415
• Description: Accessory Development Starter Kit For Android General Purpose
• Manufacturer: Microchip Technology
• Series: -r

Specifications of DM240415

• Processor To Be Evaluated: PIC24FJ256GB110-I/PT
• Processor Series: PIC24F
• Data Bus Width: 16 bit
• Interface Type: USB
• Operating Supply Voltage: 3.3 V
• Design Resources: PIC24F ADK Schematic
• Main Purpose: Reference Design, Tablet
• Embedded: Yes, MCU, 16-Bit
• Utilized Ic / Part: PIC24F
• Primary Attributes: Android OS, Development Platform for Accessories, Arduino Compatible
• Secondary Attributes: Royalty Free, No Fee Licensed Software Library
• Lead Free Status / Rohs Status: Details

Microchip's Accessory Framework for Android(tm)
4.2.5
}
BOOL USB_ApplicationEventHandler( BYTE address, USB_EVENT event,
{
There
AndroidAppIsWriteComplete
AndroidAppWrite (
AndroidAppIsWriteComplete (
Remember from the Keeping the Stack Running ( see page 17) section that the USBTasks() function needs to be called
in order to keep the stack running. This means that you shouldn't loop on the AndroidAppIsWriteComplete (
page 22)() function. Instead use either a state machine or booleans to indicate what you need to do.
}
switch( event )
{
while(1)
{
Sending Data
are
if(device_attached == FALSE)
{
}
//If the accessory is ready, then this is where we run all of the demo code
if(readInProgress == FALSE)
{
}
//Android device has been removed.
case
//Android device has been added.
case
//Handle other events here that are required...
//...
USBTasks();
//Do some extra stuff here to see if the buttons have updated
if( writeInProgress == TRUE )
{
two
//Continue to the top of the while loop to start the check over again.
continue;
//This example shows how the handle is required for the transfer functions
errorCode = AndroidAppRead(device_handle,
//If the device is attached, then lets wait for a command from the application
if( errorCode != USB_SUCCESS)
{
}
else
{
}
device_attached = FALSE;
device_handle = NULL;
return
break;
device_attached = TRUE;
device_handle = data;
return
EVENT_ANDROID_DETACH:
EVENT_ANDROID_ATTACH:
functions
//Error
DEBUG_ERROR("Error trying to start read");
readInProgress = TRUE;
see page 25)() function is used to send data from the Accessory to the Android device. The
TRUE;
TRUE;
that
see page 22)() function is used to determine if a previous transfer has completed.
(
are
see
associated
page
(BYTE*)&command_packet,
(DWORD)sizeof(ACCESSORY_APP_PACKET));
22)() and AndroidAppWrite
Must record the device handle
with
sending
data
from
void
the
(
Accessory
*data, DWORD size )
see
page
to
25)(). The
the
device:
see
18
18
4