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CC3200连接成功,但接收不了数据都有什么原因?



如题:程序会进入/************************/里运行,说明连接成功了,但没有接收到数据吧?这个什么原因呢?

此程序在别的板子上正常工作,近来改了一次板就这样了,是硬件的问题吗?但连接是正常的,而且改板主要是针对别的功能,这块基本没什么变啊!!!

if( IS_IP_LEASED(g_ulStatus) && g_ConnectionOK)
{

        lRetVal = sl_Recv(g_TcpSock.iNewSockDesc, (unsigned char *)&g_CtrlDataBuff, MAX_CTRL_PACKET_SIZE, 0);

       if( lRetVal <= 0 )
       {

            /************************/

      }

      else

      {

      /////////////////////////////

      }

}