我想通过USB控制来制作具有可变帧速率的UVC相机。然而，AN7799如何在USB视频类（UVC）框架中使用EZ-USB®FX3μ来实现图像传感器接口，帧速率被定义为相机的常数。
我有一个外部微控制器来控制帧速率。不是用UVC来控制帧速率，而是用FVAL信号来控制帧速率？
（例如，传感器每20-30毫秒开始FVAL，这意味着33-50fps，但定义的UVC帧速率是60 fps，对于系统来说，我能得到33-50fps吗？）
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以下为原文
I want to make a UVC camera with changable frame rate via USB Control. However, AN75779 How to Implement an Image Sensor Interface Using EZ-USB® FX3™ in a USB Video Class (UVC) Framework example, frame rate is defined and constant for camera.
I have a external microcontroller to control frame rate. Can I control the frame rate not by uvc but only fval signal of sensor?
(For example sensor starts fval in every 20-30 ms which means that 33-50 fps but defined uvc frame rate is 60 fps can I get 33-50 fps for system or not?)
