Ubuntu下搭建TQ2440的程序下载环境


我使用的Ubuntu 10.04,以下是我搭建实验环境的过程,其他版本的Ubuntu其搭建过程可能会略有不同,请读者自行查阅相关资料解决。

1.必须使用一款类似于windows下SecureCRT的软件:minicom。先下载minicom:

sudo apt-get install minicom

安装完毕之后,使用如下命令行测试一下:

sudo minicom -s

会出现如下结果:

            +-----[configuration]------+

            | Filenames and paths      |

            | File transfer protocols  |

            | Serial port setup        |

            | Modem and dialing        |

            | Screen and keyboard      |

            | Save setup as dfl        |

            | Save setup as..          |

            | Exit                     |

            | Exit from Minicom        |

            +--------------------------+

通过光标可以上下选择相应的配置项,按回车即可确定。

由于我使用的是笔记本电脑,所以便遇到USB转串口的问题。首先我们得先检查ubuntu有无USB转串口的驱动(ubuntu中不用安装什么USB转串口驱动)

我发现在/dev下没有ttyUSB0这个文件,www.bkjia.com不过可以自行创建一个:

sudo mknod /dev/ttyUSB0 c 188 0

如果使用的是串口线,就设置为/dev/ttyS0

然后我们重新进入minicom进行配置:

sudo minicom -s

选择Serial port setup ,进行如下设置:

    | A -    Serial Device      : /dev/ttyUSB0                              |

    | B - Lockfile Location     : /var/lock                                 |

    | C -   Callin Program      :                                           |

    | D -  Callout Program      :                                           |

    | E -    Bps/Par/Bits       : 115200 8N1                                |

    | F - Hardware Flow Control : No                                        |

    | G - Software Flow Control : No                                        |

设置完成之后,选择Save setup as dfl  ,这样下次就不用重新配置。

接着插上USB转串口线,重启minicom就能看到

Welcome to minicom 2.4

OPTIONS: I18n

Compiled on Jan 25 2010, 06:49:09.

Port /dev/ttyUSB0

Press CTRL-A Z for help on special keys

接着打开TQ2440的电源,就能看到:(此时我是从NAND Flash下启动)

<***************************************>           

               TQ2440 Test Program                  

                www.bkjia.com

<***************************************>

这就说明你的板子已经跟电脑连接在一起了。

minicom有一个很不好的地方,就是你一拉大或者缩小终端,屏幕就会被清空,这点要注意一下。

如果你要进入下载模式,那就从NOR Flash重新启动开发板,这时候会出现u-boot的信息:

#####    Boot for Nor Flash Main Menu   #####                                  

#####     EmbedSky USB download mode     #####                                 

[1] Download u-boot or STEPLDR.nb1 or other bootloader to Nand Flash           

[2] Download Eboot (eboot.nb0) to Nand Flash                                   

[3] Download Linux Kernel (zImage.bin) to Nand Flash                           

[5] Download CRAMFS image to Nand Flash                                        

[6] Download YAFFS image (root.bin) to Nand Flash                              

[7] Download Program (uCOS-II or TQ2440_Test) to SDRAM and Run it              

[8] Boot the system                                                            

[9] Format the Nand Flash                                                      

[0] Set the boot parameters                                                    

[a] Download User Program (eg: uCOS-II or TQ2440_Test)                         

[b] Download LOGO Picture (.bin) to Nand  Flash                                

[l] Set LCD Parameters                                                         

[n] Enter TFTP download mode menu                                              

[o] Download u-boot to Nor Flash                                               

[r] Reboot u-boot                                                              

[t] Test Linux Image (zImage)                                                  

[q] quit from menu                                                             

Enter your selection:

(如果没有出现的话就按一下复位键)

这时候不要忘了插上USB host,不然在下载的过程就会出现USB host is not connected now的情况。

  • 1
  • 2
  • 下一页

相关内容