bak2.txt

基于Nios II的串口通信

  char ch[3];
  fgets( ch, sizeof(ch), stdin );
  
  switch ( ch[0] )
  {
    case '1':
      run_clock( vga_frame_buffer );
      break;
    case '2':
      run_rotate( vga_frame_buffer );
      break;
    default:
      break;
  }