Harmony USB设置从不为CDC类型生成中断

嗨，我试图生成直接从HARMony附带的cdc_com_port_single示例派生的USB应用程序的最小可能工作版本。问题是，当设备从USB端口连接或断开时，框架不会产生中断事件。首先，设备必须是PIC32MX270F256D、和谐1_8_1、mplabx 3.35、编译器版本1.42。该设备是只带有USB连接器（和解耦电容器）的裸板。为了尽可能完整，我已经包括了相关图像，比如和谐配置器设置和时钟图。HED），所有的工作正常，返回一个有效句柄，并设置事件处理程序。但是，当设备从USB端口连接/断开时，事件处理程序永远不会被调用。另外，Windows对连接没有反应。在连接/断开USB设备时，不会触发system_inter..c的主ISR例程中的断点。非常感谢您的帮助！



      以下为原文

    Hi,
I have tried to generate the smallest possible working version of a USB app derived directly from the cdc_com_port_single sample that comes with Harmony.  The problem is that no interrupt events are ever generated by the framework when device is connected/disconnected from a USB port.

First the essentials, device is PIC32MX270F256D, harmony 1_8_1, mplabx 3.35, compiler version 1.42.  The device is on a bare board with a USB connector (and decoupling capacitors) only.

In an attempt to be as complete as possible, I have included what I believe to be the relevant images such as the Harmony configurator settings and clock diagram.

When stepping through the INIT state (see app.c attached), everything works correctly, a valid handle is returned, and the event handler is set.  However, the event handler is never invoked when the device is connected/disconnected from a USB port.  Also, Windows does not react to the connection.

While connecting/disconnecting the USB device, a breakpoint in the main ISR routine of system_interrupt.c is never triggered.

Any help would be greatly appreciated!
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app.c (9.95 KB) - downloaded 59 times