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Chapter 11
11-5 USING THE DEMO APPLICATION
Micriμm provides a demo application that lets you test and evaluate the class
implementation. Source files are provided for the device (for μC/OS-II and μC/OS-III only).
Executable and source files are provided for the host (Windows only).
11
11-5-1 SETUP THE APPLICATION
On the target side, two applications are available: app_usbd_phdc_single.c and
app_usbd_phdc_multiple.c . You should compile only one of these files with your project.
Table 11-12 provide a description of each one. Both files are located in the following folders:
\Micrium\Software\uC-USB-Device-V4\App\Device\OS\uCOS-II
\Micrium\Software\uC-USB-Device-V4\App\Device\OS\uCOS-III
File
app_usbd_phdc_single.c
app_usbd_phdc_multiple.c
Description
Only one task is used to send all data of different QoS. Usually used with
USBD_PHDC_OS_CFG_SCHED_EN set to DEF_DISABLED .
One task per QoS level is used to send data. Usually used with
USBD_PHDC_OS_CFG_SCHED_EN set to DEF_ENABLED .
Table 11-12 Device Demo Application Files
Several constants are available to customize the demo application on both device and host
(Windows) side. Table 11-13 describe device side constants that are located in the app_cfg.h
file. Table 11-14 describe host side constants that are located in the app_phdc.c file.
Constant
APP_CFG_USBD_PHDC_EN
APP_CFG_USBD_PHDC_TX_COMM_TASK_PRIO
APP_CFG_USBD_PHDC_RX_COMM_TASK_PRIO
APP_CFG_USBD_PHDC_TASK_STK_SIZE
APP_CFG_USBD_PHDC_ITEM_DATA_LEN_MAX
APP_CFG_USBD_PHDC_ITEM_NBR_MAX
Description
Set to DEF_ENABLED to enable the demo application.
Priority of the write task.
Priority of the read task.
Stack size of both read and write tasks. Default value is 512.
Set this constant to the maximum number of bytes that can be
transferred as data. Must be >= 5.
Set this constant to the maximum number of items that the
application should support. Must be >= 1.
Table 11-13 Device Side Demo Application’s Configuration Constants
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