EEPW论坛

void SlavFifo_SendData(unsigned char *SendData_Pointer,unsigned short int Data_Lenth)
{
 unsigned short int i;

  
  while (EP6_FullFlag_Pin)
 {         /*满标志为真,就直接退出出*/
  FifoSednEP_Full_FlagOn = 1;
  INT_Event_Flag_On = 1;
  return;
 }

 Exiti_Irq_Disable();  /*禁止中断,防止接受数据改变指针*/

 SlaveFifo_ADR0_OP = 0;    /*Adr1:Adr0:
           00 :EP2
           01 :EP4
           10 :EP6
           11 :EP8
          */
 SlaveFifo_ADR1_OP = 1;    /*选择端点:6 */

 GPIO_PinD_CfigeH = 0x33333333;   /*选择端口D为50MHZ,推挽输出*/
 GPIO_PinD_CfigeL = 0x33333333;

 SlaveFifo_SLOE_OP = 1;    /*选择从FIFO读出数据处理*/
 SlaveFifo_SLWR_OP = 1;    /*FIFO读选线拉高*/
 SlaveFifo_PKTEND_OP = 1;

 for (i = 0; i < Data_Lenth; i++)
 {
  if (EP6_FullFlag_Pin)
  {        /*缓冲区满,退出循环*/
   FifoSednEP_Full_FlagOn = 1;
   INT_Event_Flag_On = 1;  /*在发送数据的过程中检测到发送端点缓冲区已经满了,也退出*/
    break;
  }
  else
  {        
   Fifo_Data_Out = *(SendData_Pointer + i) & 0xff;  /*发送数据*/
      *(SendData_Pointer + i) = 0;
   SlaveFifo_SLWR_OP = 0;
   SlaveFifo_SLWR_OP = 1;          
  }
 }
 SlaveFifo_PKTEND_OP = 0;

 GPIO_PinD_CfigeH = 0x88888888;    /*选择端口D为,上拉输入*/
 GPIO_PinD_CfigeL = 0x88888888;

 SlaveFifo_PKTEND_OP = 1;

 if (FifoReceive_BUF_Fill_FlagOn == 0)
 {            /*如果接收缓冲区满的标志为真*/
  Exiti_Irq_Enable();
 }
 FifoTransmit_TBuf_Conter++;
}