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Using the Demo Application
The use of these constants defined usually in app_cfg.h allows you to use the vendor
demo application.
Constant
APP_CFG_USBD_VENDOR_EN
APP_CFG_USBD_VENDOR_ECHO_SYNC_EN
Description
General constant to enable the Vendor class demo
application. Must be set to DEF_ENABLED .
Enables or disables the Echo Sync demo. The possible
values are DEF_ENABLED or DEF_DISABLED .
12
APP_CFG_USBD_VENDOR_ECHO_ASYNC_EN
APP_CFG_USBD_VENDOR_ECHO_SYNC_TASK_PRIO
APP_CFG_USBD_VENDOR_ECHO_ASYNC_TASK_PRIO
APP_CFG_USBD_VENDOR_TASK_STK_SIZE
Enables or disables the Echo Async demo. The possible
values are DEF_ENABLED or DEF_DISABLED .
Priority of the task used by the Echo Sync demo.
Priority of the task used by the Echo Async demo.
Stack size of the tasks used by Echo Sync and Async
demos. A default value can be 256.
Table 12-6 Device Application Constants Configuration
APP_CFG_USBD_VENDOR_ECHO_SYNC_EN and APP_CFG_USBD_VENDOR_ECHO_ASYNC_EN can
be set to DEF_ENABLED at the same time. The vendor device created will be a composite
device formed with two vendor interfaces. One will represent the Echo Sync demo and the
other the Echo Async demo.
On the Windows side, the demo application file, app_vendor_echo.c , is part of a Visual
Studio solution located in this folder:
\Micrium\Software\uC-USB-Device-V4\App\Host\OS\Windows\Vendor\Visual Studio 2010
app_vendor_echo.c allows you to test:
■
One single device. That is Echo Sync or Async demo is enabled on the device side.
■
One composite device. That is Echo Sync and Async demos are both enabled on the
device side.
■
Multiple devices (single or composite devices).
221
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