STM32H743 UIP发送失败，有没有成功的分享下代码

ydx442745964 · 发表于 2021-1-14 15:15:11

帖子不要沉啊有没有大神帮帮忙啊

ydx442745964 · 发表于 2021-1-14 15:30:43

void send_frame (U8 *frame, U16 length) {
  ETH_DMADescTypeDef *tx_desc;
ETH_BufferTypeDef Txbuffer[ETH_TX_DESC_CNT];
HAL_StatusTypeDef ERR_Falg=0;
  uint32_t tx_index;
U32 *sp,*dp;
  U32 i,j;
/* Start of a new transmit frame */
tx_index = PHY_ETHHandle.TxDescList.CurTxDesc;
tx_desc  = (ETH_DMADescTypeDef *)PHY_ETHHandle.TxDescList.TxDesc[tx_index];
// tx_desc->DESC3==ETH_DMATXNDESCWBF_OWN
sp = (U32 *)frame;
   dp = (U32 *)( Txbuffer[tx_index].buffer);
    for (i = length ; i>0; i--) {
*dp++ = *sp++;
}

//  Txbuffer[tx_index].len += length;
// memcpy (Txbuffer[tx_index].buffer, frame, length);
  Txbuffer[tx_index].buffer=frame;

  Txbuffer[tx_index].len += length;
  Txbuffer[tx_index].next = NULL;
  /* Last fragment, send the packet now */
  TxConfig.Length = length;
  TxConfig.TxBuffer = Txbuffer;

  /* Clean and invalidate data cache */
  //SCB_CleanInvalidateDCache ();
HAL_ETH_Transmit_IT(&PHY_ETHHandle, &TxConfig);
// ERR_Falg=HAL_ETH_Transmit(&PHY_ETHHandle, &TxConfig,0);
// Txbuffer[tx_index].len=0;
Txbuffer[tx_index].len=0;
}  这是我的发送函数请大佬看下有没有问题