使用EVT\EXAM\USB\USBHS\DEVICE\SimulateCDC-HID这个例子来修改，上传速度只能达到19MB/s，是不是我程序修改有问题？
/*********************************************************************
?*?@fn??????UART2_DataRx_Deal
?*
?*?@brief???Uart2?data?receiving?processing
?*
?*?@return??none
?*/
void?UART2_DataRx_Deal(?void?)
{
????uint16_t?temp16;
????uint32_t?remain_len;
????uint16_t?packlen;
//????/*?Serial?port?1?data?DMA?receive?processing?*/
//????NVIC_DisableIRQ(?USBHS_IRQn?);
//????NVIC_DisableIRQ(?USBHS_IRQn?);
//????UARTx_Rx_DMACurCount?=?DEF_UART2_RX_DMA_CH->CNTR;
//????if(?UARTx_Rx_DMALastCount?!=?UARTx_Rx_DMACurCount?)
//????{
//????????if(?UARTx_Rx_DMALastCount?>?UARTx_Rx_DMACurCount?)
//????????{
//????????????temp16?=?UARTx_Rx_DMALastCount?-?UARTx_Rx_DMACurCount;
//????????}
//????????else
//????????{
//????????????temp16?=?DEF_UARTx_RX_BUF_LEN?-?UARTx_Rx_DMACurCount;
//????????????temp16?+=?UARTx_Rx_DMALastCount;
//????????}
//????????UARTx_Rx_DMALastCount?=?UARTx_Rx_DMACurCount;
//????????if(?(?Uart.Rx_RemainLen?+?temp16?)?>?DEF_UARTx_RX_BUF_LEN?)
//????????{
//????????????/*?Overflow?handling?*/
//????????????/*?Save?frame?error?status?*/
//????????????DUG_PRINTF("U0_O:%08lx\n",(uint32_t)Uart.Rx_RemainLen);
//????????}
//????????else
//????????{
//????????????Uart.Rx_RemainLen?+=?temp16;
//????????}
//
//????????/*?Setting?reception?status?*/
//????????Uart.Rx_TimeOut?=?0x00;
//????}
//????NVIC_EnableIRQ(?USBHS_IRQn?);
????/*****************************************************************/
????/*?Serial?port?1?data?processing?via?USB?upload?and?reception?*/
//????if(?Uart.Rx_RemainLen?)
????{
????????if(?Uart.USB_Up_IngFlag?==?0?)
????????{
????????????/*?Calculate?the?length?of?this?upload?*/
????????????remain_len?=?Uart.Rx_RemainLen;
????????????packlen?=?0x00;
????????????if(?remain_len?>=?DEF_USBD_HS_PACK_SIZE?)
????????????{
????????????????packlen?=?DEF_USBD_HS_PACK_SIZE;
????????????}
????????????else
????????????{
????????????????if(?Uart.Rx_TimeOut?>=?Uart.Rx_TimeOutMax?)
????????????????{
????????????????????packlen?=?remain_len;
????????????????}
????????????}
????????????if(?packlen?>?(?DEF_UARTx_RX_BUF_LEN?-?Uart.Rx_DealPtr?)?)
????????????{
????????????????packlen?=?(?DEF_UARTx_RX_BUF_LEN?-?Uart.Rx_DealPtr?);
????????????}
????????????/*?Upload?serial?data?via?usb?*/
????????????if(?packlen=512?)//每次固定发送512字节
????????????{
????????????????NVIC_DisableIRQ(?USBHS_IRQn?);
????????????????NVIC_DisableIRQ(?USBHS_IRQn?);
????????????????Uart.USB_Up_IngFlag?=?0x01;
????????????????Uart.USB_Up_TimeOut?=?0x00;
????????????????USBHSD->UEP2_TX_DMA?=?(uint32_t)(uint8_t?*)&UART2_Rx_Buf[?0?];
????????????????USBHSD->UEP2_TX_LEN??=?packlen;
????????????????USBHSD->UEP2_TX_CTRL?&=?~USBHS_UEP_T_RES_MASK;
????????????????USBHSD->UEP2_TX_CTRL?|=?USBHS_UEP_T_RES_ACK;
????????????????NVIC_EnableIRQ(?USBHS_IRQn?);
????????????????/*?Calculate?the?variables?of?interest?*/
????????????????Uart.Rx_RemainLen?-=?packlen;
????????????????Uart.Rx_DealPtr?+=?packlen;
????????????????if(?Uart.Rx_DealPtr?>=?DEF_UARTx_RX_BUF_LEN?)
????????????????{
????????????????????Uart.Rx_DealPtr?=?0x00;
????????????????}
????????????????/*?Start?0-length?packet?timeout?timer?*/
????????????????if(?packlen?==?DEF_USBD_HS_PACK_SIZE?)
????????????????{
????????????????????Uart.USB_Up_Pack0_Flag?=?0x01;
????????????????}
????????????}
????????}
????????else
????????{
????????????/*?Set?the?upload?success?flag?directly?if?the?upload?is?not?successful?after?the?timeout?*/
????????????if(?Uart.USB_Up_TimeOut?>=?DEF_UARTx_USB_UP_TIMEOUT?)
????????????{
????????????????Uart.USB_Up_IngFlag?=?0x00;
????????????????USBHS_Endp_Busy[?DEF_UEP2?]?=?0;
????????????}
????????}
????}
????/*****************************************************************/
????/*?Determine?if?a?0-length?packet?needs?to?be?uploaded?(required?for?CDC?mode)?*/
//????if(?Uart.USB_Up_Pack0_Flag?)
//????{
//????????if(?Uart.USB_Up_IngFlag?==?0?)
//????????{
//????????????if(?Uart.USB_Up_TimeOut?>=?(?DEF_UARTx_RX_TIMEOUT?*?20?)?)
//????????????{
//????????????????NVIC_DisableIRQ(?USBHS_IRQn?);
//????????????????NVIC_DisableIRQ(?USBHS_IRQn?);
//????????????????Uart.USB_Up_IngFlag?=?0x01;
//????????????????Uart.USB_Up_TimeOut?=?0x00;
//????????????????USBHSD->UEP2_TX_LEN??=?0x00;
//????????????????USBHSD->UEP2_TX_CTRL?&=?~USBHS_UEP_T_RES_MASK;
//????????????????USBHSD->UEP2_TX_CTRL?|=?USBHS_UEP_T_RES_ACK;
//????????????????Uart.USB_Up_IngFlag?=?0;
//????????????????NVIC_EnableIRQ(?USBHS_IRQn?);
//????????????????Uart.USB_Up_Pack0_Flag?=?0x00;
//????????????}
//????????}
//????}
}
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