bulkloop示例中的带宽是多少？

您好!
如果我使用HulkLoad示例HD720P，带宽或速度足够吗？
我不确定你喜欢使用它，但我认为带宽取决于DMA缓冲区大小和计数。
为什么BulkLoad示例没有GPIFDe设计器项目文件？
因为批量环路只接收来自U端口（USB输出端点）的数据，并将数据直接转发到U端口（USB端点）。这是一个循环！！！！
需要什么样的病例？
如果您使用的是GPIF接口。接口的数据和控制线。参见UVC示例或从FIFO示例。
当做，
隆皮



以下为原文
Hi
>> If i use bulkloop example for HD 720p, is bandwidth or speed enough ?
I am not sure how you like to use it, but I think the bandwidth depend on DMA buffer size and count.
>> Why bulkloop example have not GPIFdesigner project file?
because bulk loop just receive data from U-port (an USB OUT endpoint) and forward the data directly to U-port (an USB IN endpoint). It is a loop!!!
>> What case need GPIF desiner?
If you are using the GPIF interface. The data and control lines of the interface e. g. see UVC example or slave fifo examples.
regards,
lumpi

谢谢你的建议，
你说喜欢跟随
为什么BulkLoad示例没有GPIFDe设计器项目文件？
因为批量环路只接收来自U端口（USB输出端点）的数据，并将数据直接转发到U端口（USB端点）。这是一个循环！！！！
如果我使用BulkRoop（但不做循环）来进行视频数据恢复，
结果表明，UVC可以更有效地进行数据传输。
由于UVC具有开销开销，所以我认为对于视频端口和主机端点的端点来说，这是一个更有效的方法。
你的意见是什么？



以下为原文
Thanks advice,
You said like following
>> Why bulkloop example have not GPIFdesigner project file?

because bulk loop just receive data from U-port (an USB OUT endpoint) and forward the data directly to U-port (an USB IN endpoint). It is a loop!!!

What if i use bulkloop(but make not loop) for video data receving,
I thnk that it can make more effectivly data transfertation that UVC.
Because UVC have redandancy overhead, so i think that this is more effectable way for bulkloop in endpoint with video port and out endpoint with host.

What is your opinion?

你好，
对不起，我听不懂你的描述。
BulkRoad是DMA自动或手动模式下的循环。因此，DMA生产者插座连接到了终点和消费者插座连接到端点。所以你把从主机通过了终点将反映到终端。在手动模式下你有FX3 DMA DMA回调和犯下自动工作自动对FX3应用程序。
那么如何连接视频端口呢？你的视频端口是什么意思？
这是正确的，这是任何硬件，你想连接到GPIF接口？
谢谢，
隆皮



以下为原文
Hi,
sorry but I can not follow your description.
Bulkloop is a loop in DMA auto or manual mode. So the producer socket of the dma is connected to an OUT endpoint and the consumer socket is connected to an IN endpoint. So all what you send from host via the OUT endpoint will be mirrored back to the IN endpoint. In case of fx3 dma manual mode you have to commit in dma callback and in case of auto it works automatically in your application on fx3.
So how you connect the video port? What is your meaning of a video port?
Is it right, that it is any hardware which you like to connect to the GPIF interface?
thanks,
lumpi

BulkRoad是DMA自动或手动模式下的循环。因此，DMA生产者插座连接到了终点和消费者插座连接到端点。所以你把从主机通过了终点将反映到终端。在手动模式下你有FX3 DMA DMA回调和犯下自动工作自动对FX3应用程序。
那么如何连接视频端口呢？你的视频端口是什么意思？
这是正确的，这是任何硬件，你想连接到GPIF接口？
谢谢，
隆皮
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谢谢，也许我还没有完全理解BulkRoopy。
我的意思是，视频端口HSYNC，垂直同步，数据[7:0]相机。
我想相机的输出端口引脚（HSYNC，Vsync，数据[7:0]）连接到FX3 GPIO引脚。
然后，我readcamera输出端口引脚（HSYNC，Vsync，数据[7:0]）从FX3 GPIO引脚的bulkloop模式。
但你的字，从U型口只是switchingreceive bulkloop数据（OUT端点USB）和直接数据的U型口（端点USB）。
所以，如果我用摄像机接口与FX3，我需要对DMA方案（不批量模式但SlaveFIFO或等。）
我认为这是对的吗？



以下为原文
Bulkloop is a loop in DMA auto or manual mode. So the producer socket of the dma is connected to an OUT endpoint and the consumer socket is connected to an IN endpoint. So all what you send from host via the OUT endpoint will be mirrored back to the IN endpoint. In case of fx3 dma manual mode you have to commit in dma callback and in case of auto it works automatically in your application on fx3.
So how you connect the video port? What is your meaning of a video port?
Is it right, that it is any hardware which you like to connect to the GPIF interface?
thanks,
lumpi

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Thanks, may be i have not totally understading bulkloop.
I mean that The Video ports are Hsync, Vsync, Data[7:0] of camera.

I think like that camera's output port pins (Hsync, Vsync, Data[7:0]) connect to FX3 GPIO pins.
Then, i read camera's output port pins(Hsync, Vsync, Data[7:0]) from FX3 GPIO pins by bulkloop mode.

But as your word, bulkloop is just switchingreceive data from U-port (an USB OUT endpoint) and forward the data directly to U-port (an USB IN endpoint).

So, if i use video camera interface with fx3, i need GPIF DMA scheme(not bulk mode but slavefifo or etc..)

Is this correctly right my think?

是的，没错。
你需要奴隶FIFO，但为此你需要另外一个FPGA。或者你使用UVC GPIF II项目，然后在它周围做你自己的应用程序。或者您使用的是基于UVC GPIF II的GPIFII项目，…
许多可能性，但与传感器，你需要GPIFII接口。
当做，
隆皮



以下为原文
Yes, that's right.
You need slave fifo but for this you need additional a FPGA. Or you use the UVC GPIF II project and you make your own application around it. or you are using your own GPIF II project based on the UVC GPIF II,...
many possibilities but with a sensor you need the GPIF II interface.
regards,
lumpi

你好，DV2，
请参阅以下申请须知：
AN7799-在USB视频类（UVC）框架中将图像传感器连接到EZ-USB®FX3域
HTTP://www. CyPress？COM/？RID＝62824
我希望这个应用笔记为你用FX3实现你的应用提供了一个好的开始。
谢谢，
西克里希纳。



以下为原文
Hi Dv2,
Please refer to the following application note:
AN75779 - Interfacing an Image Sensor to EZ-USB® FX3™ in a USB video class (UVC) Framework
http://www.cypress.com/?rID=62824
I hope this application note gives you a good start for implementing your application with FX3.
Thanks,
sai krishna.