FX3 UVC DMA提交缓冲区失败

请参阅：
多通道提交缓冲区KBA218830中的序列错误



     以下为原文
  Please refer:
Invalid Sequence Error in Multi-Channel Commit Buffer - KBA218830

嗨，凯杰：
首先谢谢你的回答！我已经看过那个帖子了，但是我有两个地方有点迷惑！
第一：如何增加DMA缓冲空间！
第二：在UVCppthRead（）函数中有事件（DMA提交失败）的处理，我可以在这个事件中添加这个代码吗？
谢谢！



     以下为原文
  Hi keaj:
     First of all thank you for your answer！I have already seen that post, but I have two places a bit puzzled！
 
     First: how to increase the dma buffer space!
 
     Second: There has the handling of the event(dma commit failure)  in UVCAppThread_Entry() function, wheth i can add this code in this event?
 
      Thanks advance!

1。在DMA创建时可以增加缓冲空间
*创建一个DMA手动通道，用于发送视频数据到USB主机。*/
DMALULTICONTIONS大小= CyfxFuxUvcl StudioBuffl大小；
dMulult构型计数＝CyfxFuxUvcl StudioBuffyCo计数；
DMAululTyTr.ValueScCtCube＝2；
DMulultFix.PrdScDe[ 0 ]＝（Cyu3PdMasOcKeTiTyt）Cyu3PiPiBoSoKoLy0；
DMulultFix.PrdScDe[ 1 ]＝（Cyu3PdMasOcKeTiTyt）Cyu3PiPibSoCKEY1；
DMSululTys.CuxScDe[ 0 ]＝（Cyu3PdasOxKeTiTyt）（Cyu3PyuBiSoCuxCux0.0×CyfxxEpViVioOx SuxSok）；
dMululthCopy.PudWord计数＝0；
DMAululTyFr.PodHead＝12；/* 12字节UVC头。*/
DMAululTyTr.PrdPothter＝4；/* 4字节页脚，以补偿12字节头。*/
dMulult构型：融合器＝0；
dMulultDigial.dMaMod＝CyuU3PydMaMod字节；
DMAululTyTrime.通知= CyuU3PyDMABCBYPRODYAL事件CYU-U3PY-DMAYBCBY COXION事件；
DMululthCopy.Cb= CyfXVCpAPND McAcLeBACK；
ApItReStase= Cyu3PdMaululdChhanNeCuto（＆GLCHANDELLUVCVSTROW，CYU-U3PYDMAYTYPE）
；
2。这是在AN75 79APP注释固件中显示的。在AN7799中引用CyfFXYUVCY-DMAYRESETLY事件。



     以下为原文
  1. Buffer space can be increased at the time of DMA Creation
 
/* Create a DMA Manual channel for sending the video data to the USB host. */
    dmaMultiConfig.size           = CY_FX_UVC_STREAM_BUF_SIZE;
    dmaMultiConfig.count          = CY_FX_UVC_STREAM_BUF_COUNT;
    dmaMultiConfig.validSckCount  = 2;
    dmaMultiConfig.prodSckId [0]  = (CyU3PDmaSocketId_t)CY_U3P_PIB_SOCKET_0;
    dmaMultiConfig.prodSckId [1]  = (CyU3PDmaSocketId_t)CY_U3P_PIB_SOCKET_1;
    dmaMultiConfig.consSckId [0]  = (CyU3PDmaSocketId_t)(CY_U3P_UIB_SOCKET_CONS_0 | CY_FX_EP_VIDEO_CONS_SOCKET);
    dmaMultiConfig.prodAvailCount = 0;
    dmaMultiConfig.prodHeader     = 12;                 /* 12 byte UVC header to be added. */
    dmaMultiConfig.prodFooter     = 4;                  /* 4 byte footer to compensate for the 12 byte header. */
    dmaMultiConfig.consHeader     = 0;
    dmaMultiConfig.dmaMode        = CY_U3P_DMA_MODE_BYTE;
    dmaMultiConfig.notification   = CY_U3P_DMA_CB_PROD_EVENT | CY_U3P_DMA_CB_CONS_EVENT;
    dmaMultiConfig.cb             = CyFxUvcApplnDmaCallback;
    apiRetStatus = CyU3PDmaMultiChannelCreate (&glChHandleUVCStream, CY_U3P_DMA_TYPE_MANUAL_MANY_TO_ONE,
            &dmaMultiConfig);
2. This is shown in the AN75779 App Note firmware. Refer CY_FX_UVC_DMA_RESET_EVENT in the AN75779.

嗨：谢谢你的回放！我遇到了另一个问题，你能帮我吗？下面是帖子，谢谢大家！
感谢HTTPS://Cultuy.CyPas.COM/收件箱



     以下为原文
  Hi: thanks for your replay! i have met a nother problem,can you help me? below is the post , thanks advance!
thanks advance https://community.cypress.com/inbox

你好，王，
请创建一个论坛线程，并与我分享。



     以下为原文
  Hello Wang,
 
Please create a forum thread and share it with me.

嗨：我不知道为什么没有人回答我的问题后，我创建了一个论坛？如何在论坛成立后及时回复



     以下为原文
  Hi: i do not know  why nobody reply my problem after i created a forum? how i can get a reply timely after i created a forum

HI：如下图所示，一旦设备接收到第二组特性AMCAP，它将被卡住。



     以下为原文
  Hi: As shown in the figure below,Once the device receives the second SET FEATURE amcap it will be stuck