• 芯驰D9评测（2）--系统环境配置连接

    linux开发板的软件开发三件套： 建立连接-->建立交叉编译环境-->建立驱动开发环境。 

    如果我们不涉及镜像的深度定制，只是平台化应用的话

    1. 建立串口连接

    查看手册， 获取接口定义说明： 

    板载一共两个端子，三个串口。 

     调试端口信息参照快速指南，用原配的USB-TTL线缆连接电脑（看驱动应该是用的CH340）： 

     调试R5内核，就连接上面的UART3,另外一节说明。 

    调试工具还是我们经典的secureCRT，连接好后，设置串口速率115200， 选择正确的串口建立连接： 

    最好重新复位一下，登录用户root， 初始无密码，可以用passwd命令设置密码： 

     

    小核R5核可以通过另外个串口连接RTOS进行开发， 但没看到详细文档， 在评估手册里有一句“如需深入了解异构多核通信方式的实现，请阅读应用笔记《MYD-JD9X R5 协处理器
    应用开发笔记》。”， 这个应用笔记暂时还没找到，确认串口连接后，只能放一放。 

    串口连到J6: 

     

    1. >help
    2. >
    3. help:
    4.  Lists all the registered commands
    5.  
    6.  
    7. >
    8. sleepm: sleep number of milliseconds
    9.  sleepm 1000
    10. >
    11. sleep: sleep number of seconds
    12.  sleep 5
    13. >
    14. chain:
    15.  chain load another binary
    16.  
    17. >
    18. stackstomp:
    19.  intentionally overrun the stack
    20.  
    21. >
    22. crash:
    23.  intentionally crash
    24.  
    25. >
    26. mc:
    27.  copy a range of memory
    28.  
    29. >
    30. fb:
    31.  fill range of memory by byte
    32.  
    33. >
    34. fh:
    35.  fill range of memory by halfword
    36.  
    37. >
    38. fw:
    39.  fill range of memory by word
    40.  
    41. >
    42. mb:
    43.  modify byte of memory
    44.  
    45. >
    46. mh:
    47.  modify halfword of memory
    48.  
    49. >
    50. mw:
    51.  modify word of memory
    52.  
    53. >
    54. db:
    55.  display memory in bytes
    56.  
    57. >
    58. dh:
    59.  display memory in halfwords
    60.  
    61. >
    62. dw:
    63.  display memory in words
    64.  
    65. >
    66. task-stats:
    67.  Showing the state of RTOS task
    68.  
    69. >

     应该是RTOS的系统调试命令，其中并没有手册上的GPIO命令，待找到文档后另文记录。

    2. 对照手册熟悉板载资源和命令： 

     2. 1查看CPU信息： 

    1. root@myd-jd9x:~# cat /proc/cpuinfo
    2. processor       : 0
    3. BogoMIPS        : 6.00
    4. Features        : fp asimd evtstrm crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop
    5. CPU implementer : 0x41
    6. CPU architecture: 8
    7. CPU variant     : 0x2
    8. CPU part        : 0xd05
    9. CPU revision    : 0
    10.  
    11. processor       : 1
    12. BogoMIPS        : 6.00
    13. Features        : fp asimd evtstrm crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop
    14. CPU implementer : 0x41
    15. CPU architecture: 8
    16. CPU variant     : 0x2
    17. CPU part        : 0xd05
    18. CPU revision    : 0
    19.  
    20. processor       : 2
    21. BogoMIPS        : 6.00
    22. Features        : fp asimd evtstrm crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop
    23. CPU implementer : 0x41
    24. CPU architecture: 8
    25. CPU variant     : 0x2
    26. CPU part        : 0xd05
    27. CPU revision    : 0
    28.  
    29. processor       : 3
    30. BogoMIPS        : 6.00
    31. Features        : fp asimd evtstrm crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop
    32. CPU implementer : 0x41
    33. CPU architecture: 8
    34. CPU variant     : 0x2
    35. CPU part        : 0xd05
    36. CPU revision    : 0

     查看CPU温度： 

    1. root@myd-jd9x:~# cat /sys/class/thermal/thermal_zone0/temp
    2. 42000

    2.2 查看系统RTC，设置系统时间

       RTC（Real-time clock）本身是一个时钟，用来记录真实时间，当软件系统关机后
    保留系统时间并继续进行计时，系统重新开启后在将时间同步进软件系统。
      JD9X 芯片内部包含 RTC 时钟，如果实际产品对 RTC 功耗要求不是很高，对断电时间
    保持要求在一个月以内，可以直接使用芯片内部 RTC，否则就需要采用专用外部 RTC 芯
    片了。RTC 的测试通常采用 Linux 系统常用的 hwclock 和 date 命令配合进行，下面测试
    将系统时间写入 RTC，读取 RTC 时间并设置为系统时间并进行时间掉电保持的测试。 

     查看设备：

    1. root@myd-jd9x:/mnt/mmc# ls /dev/rtc* -al
    2. lrwxrwxrwx    1 root     root             4 Jan  1 00:00 /dev/rtc -> rtc0
    3. crw-------    1 root     root      250,   0 Jan  1 00:00 /dev/rtc0
    4. crw-------    1 root     root      250,   1 Jan  1 00:00 /dev/rtc1

    查看及设置系统时间：

    1. root@myd-jd9x:/mnt/mmc# date
    2. Fri Jan  1 01:55:16 UTC 2066
    3. root@myd-jd9x:/mnt/mmc# date 100311332023.10
    4. Tue Oct  3 11:33:10 UTC 2023

     设置系统时间格式： YYDDHHMMYYYY.SS

    此时设置的系统时间掉电不会保存，可以用hwclock命令查看、写入、再去人RTC设备的系统时钟：

    1. root@myd-jd9x:/mnt/mmc# hwclock
    2. Fri Jan  1 01:58:07 2066  0.000000 seconds
    3. root@myd-jd9x:/mnt/mmc# hwclock -w
    4. root@myd-jd9x:/mnt/mmc# hwclock -r
    5. Tue Oct  3 11:35:43 2023  0.000000 seconds
    6. root@myd-jd9x:/mnt/mmc# hwclock
    7. Tue Oct  3 11:35:48 2023  0.000000 seconds

    2.3 查看内存： 

    1. root@myd-jd9x:~# cat /proc/meminfo
    2. MemTotal:        1646188 kB
    3. MemFree:         1218344 kB
    4. MemAvailable:    1353540 kB
    5. Buffers:            6272 kB
    6. Cached:           283548 kB
    7. SwapCached:            0 kB
    8. Active:            52676 kB
    9. Inactive:         274908 kB
    10. Active(anon):      37892 kB
    11. Inactive(anon):     1164 kB
    12. Active(file):      14784 kB
    13. Inactive(file):   273744 kB
    14. Unevictable:           0 kB
    15. Mlocked:               0 kB
    16. SwapTotal:             0 kB
    17. SwapFree:              0 kB
    18. Dirty:                 0 kB
    19. Writeback:             0 kB
    20. AnonPages:         35888 kB
    21. Mapped:            45416 kB
    22. Shmem:              1288 kB
    23. Slab:              37956 kB
    24. SReclaimable:      19988 kB
    25. SUnreclaim:        17968 kB
    26. KernelStack:        2080 kB
    27. PageTables:          632 kB
    28. NFS_Unstable:          0 kB
    29. Bounce:                0 kB
    30. WritebackTmp:          0 kB
    31. CommitLimit:      823092 kB
    32. Committed_AS:     103868 kB
    33. VmallocTotal:   135290290112 kB
    34. VmallocUsed:           0 kB
    35. VmallocChunk:          0 kB
    36. AnonHugePages:     18432 kB
    37. ShmemHugePages:        0 kB
    38. ShmemPmdMapped:        0 kB
    39. CmaTotal:         262144 kB
    40. CmaFree:          240888 kB
    41. HugePages_Total:       0
    42. HugePages_Free:        0
    43. HugePages_Rsvd:        0
    44. HugePages_Surp:        0
    45. Hugepagesize:       2048 kB

     看懂参数 

     MemTotal
    ：所有可用的 RAM 大小，物理内存减去预留位和内核使用
     MemFree
    ：LowFree + HighFree
     Buffers
    ：用来给块设备做缓存的大小
     Cached
    ：文件的缓冲区大小
     SwapCached
    ：已经被交换出来的内存。与 I/O 相关
     Active
    ：经常（最近）被使用的内存
     Inactive
    ：最近不常使用的内存 

     系统内置了memtester工具，可以做压测：

    1. root@myd-jd9x:~# memtester
    2. memtester version 4.5.0 (64-bit)
    3. Copyright (C) 2001-2020 Charles Cazabon.
    4. Licensed under the GNU General Public License version 2 (only).
    5.  
    6. pagesize is 4096
    7. pagesizemask is 0xfffffffffffff000
    8. need memory argument, in MB
    9.  
    10. Usage: memtester [-p physaddrbase [-d device]] <mem>[B|K|M|G] [loops]

     测试看看： 

    1. root@myd-jd9x:~# memtester 300M 1
    2. memtester version 4.5.0 (64-bit)
    3. Copyright (C) 2001-2020 Charles Cazabon.
    4. Licensed under the GNU General Public License version 2 (only).
    5.  
    6. pagesize is 4096
    7. pagesizemask is 0xfffffffffffff000
    8. want 300MB (314572800 bytes)
    9. got  300MB (314572800 bytes), trying mlock ...locked.
    10. Loop 1/1:
    11.   Stuck Address       : ok         
    12.   Random Value        : ok
    13.   Compare XOR         : ok
    14.   Compare SUB         : ok
    15.   Compare MUL         : ok
    16.   Compare DIV         : ok
    17.   Compare OR          : ok
    18.   Compare AND         : ok
    19.   Sequential Increment: ok
    20.   Solid Bits          : ok         
    21.   Block Sequential    : ok         
    22.   Checkerboard        : ok         
    23.   Bit Spread          : ok         
    24.   Bit Flip            : ok         
    25.   Walking Ones        : ok         
    26.   Walking Zeroes      : ok         
    27.   8-bit Writes        : ok
    28.   16-bit Writes       : ok
    29.  
    30. Done.

    2.3查看EMMC， 测试读写速度

    1. root@myd-jd9x:/mnt/mmc# fdisk -l
    2. Found valid GPT with protective MBR; using GPT
    3.  
    4. Disk /dev/mmcblk0: 30777344 sectors, 2740M
    5. Logical sector size: 512
    6. Disk identifier (GUID): 4ad76685-a1da-474a-8041-154d90f10ef7
    7. Partition table holds up to 128 entries
    8. First usable sector is 4096, last usable sector is 30777310
    9.  
    10. Number  Start (sector)    End (sector)  Size Name
    11.      1            4096            4607  256K dil2_a
    12.      2            4608            5119  256K dil2_b
    13.      3            5120            6143  512K ddr_init_seq_a
    14.      4            6144            7167  512K ddr_init_seq_b
    15.      5            7168            8191  512K ddr_fw_a
    16.      6            8192            9215  512K ddr_fw_b
    17.      7            9216            9247 16384 ddr_ioretention
    18.      8            9248            9503  128K system_config_a
    19.      9            9504            9759  128K system_config_b
    20.     10            9760           10783  512K ssystem_a
    21.     11           10784           11807  512K ssystem_b
    22.     12           11808           11935 65536 hsm_fw_a
    23.     13           11936           12063 65536 hsm_fw_b
    24.     14           12064           13087  512K preloader_a
    25.     15           13088           14111  512K preloader_b
    26.     16           14112           18207 2048K safety_os_a
    27.     17           18208           22303 2048K safety_os_b
    28.     18           22304           71455 24.0M res_a
    29.     19           71456          120607 24.0M res_b
    30.     20          120608          120863  128K atf_a
    31.     21          120864          121119  128K atf_b
    32.     22          121120          125215 2048K tos_a
    33.     23          125216          129311 2048K tos_b
    34.     24          129312          129439 65536 vbmeta_a
    35.     25          129440          129567 65536 vbmeta_b
    36.     26          129568          133663 2048K bootloader_a
    37.     27          133664          137759 2048K bootloader_b
    38.     28          137760          137887 65536 env_a
    39.     29          137888          138015 65536 env_b
    40.     30          138016        12720927 6144M rootfs
    41.     31        12720928        16915231 2048M backup
    42.     32        16915232        16980767 32.0M sdrv_update
    43.     33        16980768        16981791  512K dtb_a
    44.     34        16981792        16982815  512K dtb_b
    45.     35        16982816        16983839  512K dtbo_a
    46.     36        16983840        16984863  512K dtbo_b
    47.     37        16984864        17042207 28.0M kernel_a
    48.     38        17042208        17099551 28.0M kernel_b
    49.     39        17099552        17623839  256M data
    50.     40        17623840        30777310 6422M userdata
    51. Disk /dev/mmcblk0rpmb: 4 MB, 4194304 bytes, 8192 sectors
    52. 128 cylinders, 4 heads, 16 sectors/track
    53. Units: sectors of 1 * 512 = 512 bytes
    54.  
    55. Disk /dev/mmcblk0rpmb doesn't contain a valid partition table
    56. Disk /dev/mmcblk0boot1: 4 MB, 4194304 bytes, 8192 sectors
    57. 128 cylinders, 4 heads, 16 sectors/track
    58. Units: sectors of 1 * 512 = 512 bytes
    60. Disk /dev/mmcblk0boot1 doesn't contain a valid partition table
    61. Disk /dev/mmcblk0boot0: 4 MB, 4194304 bytes, 8192 sectors
    62. 128 cylinders, 4 heads, 16 sectors/track
    63. Units: sectors of 1 * 512 = 512 bytes
    64.  
    65. Disk /dev/mmcblk0boot0 doesn't contain a valid partition table
    66. Disk /dev/mmcblk2: 29 GB, 31266439168 bytes, 61067264 sectors
    67. 3801 cylinders, 255 heads, 63 sectors/track
    68. Units: sectors of 1 * 512 = 512 bytes
    70. Device       Boot StartCHS    EndCHS        StartLBA     EndLBA    Sectors  Size Id Type
    71. /dev/mmcblk2p1    0,130,3     1023,254,63       8192   61067263   61059072 29.1G  7 HPFS/NTFS

    df命令查看分区信息 

    1. root@myd-jd9x:~# df -h
    2. Filesystem                Size      Used Available Use% Mounted on
    3. /dev/root                 1.9G      1.4G    353.4M  81% /
    4. devtmpfs                659.1M         0    659.1M   0% /dev
    5. tmpfs                   803.8M         0    803.8M   0% /dev/shm
    6. tmpfs                   803.8M    128.0K    803.7M   0% /tmp
    7. tmpfs                   803.8M    408.0K    803.4M   0% /run

     izone命令测试读写速度：

    1. root@myd-jd9x:~# iozone -e -I -a -s 100M -r 1M -i 0 -i 1 -i 2
    2.         Iozone: Performance Test of File I/O
    3.                 Version $Revision: 3.489 $
    4.                 Compiled for 64 bit mode.
    5.                 Build: linux 
    6.  
    7.         Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
    8.                      Al Slater, Scott Rhine, Mike Wisner, Ken Goss
    9.                      Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
    10.                      Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
    11.                      Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
    12.                      Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
    13.                      Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
    14.                      Vangel Bojaxhi, Ben England, Vikentsi Lapa,
    15.                      Alexey Skidanov, Sudhir Kumar.
    16.  
    17.         Run began: Tue Oct  3 11:49:24 2023
    18.  
    19.         Include fsync in write timing
    20.         O_DIRECT feature enabled
    21.         Auto Mode
    22.         File size set to 102400 kB
    23.         Record Size 1024 kB
    24.         Command line used: iozone -e -I -a -s 100M -r 1M -i 0 -i 1 -i 2
    25.         Output is in kBytes/sec
    26.         Time Resolution = 0.000001 seconds.
    27.         Processor cache size set to 1024 kBytes.
    28.         Processor cache line size set to 32 bytes.
    29.         File stride size set to 17 * record size.
    30.                                                               random    random     bkwd    record    stride                                    
    31.               kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
    32.           102400    1024    81469    82252   259652   270079   253454    81344                                                                
    33.  
    34. iozone test complete.

     测试结果： 读--253Mbps， 写--81Mbps

    2.4 查看SD卡， 挂载分区， 测试读写速度 

     上面fdisk命令有列出sd卡的分区信息： 

    1. Device       Boot StartCHS    EndCHS        StartLBA     EndLBA    Sectors  Size Id Type
    2. /dev/mmcblk2p1    0,130,3     1023,254,63       8192   61067263   61059072 29.1G  7 HPFS/NTFS

    注意，如果提示信息是windows系统的话，可以在PC上用读卡器重新格式化NTFS格式。  

    新建目录，并挂载分区，查看：

    1. root@myd-jd9x:~# mount /dev/mmcblk2p1 /mmc
    2. root@myd-jd9x:~# df -h
    3. Filesystem                Size      Used Available Use% Mounted on
    4. /dev/root                 1.9G      1.4G    353.4M  81% /
    5. devtmpfs                659.1M         0    659.1M   0% /dev
    6. tmpfs                   803.8M         0    803.8M   0% /dev/shm
    7. tmpfs                   803.8M    124.0K    803.7M   0% /tmp
    8. tmpfs                   803.8M    408.0K    803.4M   0% /run
    9. /dev/mmcblk2p1           29.1G     63.5M     29.1G   0% /mmc

    此时目录/mmc为只读属性

    1. root@myd-jd9x:~# cd /mmc
    2. root@myd-jd9x:/mmc# ls
    3. System Volume Information
    4. root@myd-jd9x:/mmc# mkdir temp
    5. mkdir: can't create directory 'temp': Read-only file system

    在目录下操作，就可以读写了

    1. root@myd-jd9x:/mmc# mount /dev/mmcblk2p1 /mmc
    2. root@myd-jd9x:/mmc# ls
    3. root@myd-jd9x:/mmc# mkdir temp
    4. root@myd-jd9x:/mmc# ls
    5. temp
    6. root@myd-jd9x:/mmc# df -h
    7. Filesystem                Size      Used Available Use% Mounted on
    8. /dev/root                 1.9G      1.4G    353.4M  81% /
    9. devtmpfs                659.1M         0    659.1M   0% /dev
    10. tmpfs                   803.8M         0    803.8M   0% /dev/shm
    11. tmpfs                   803.8M    128.0K    803.7M   0% /tmp
    12. tmpfs                   803.8M    408.0K    803.4M   0% /run
    13. /dev/mmcblk2p1           29.1G     63.5M     29.1G   0% /mmc

    遗留问题--怎么开机自动挂载还没解决，编辑/etc/fstab方法没起作用

     测试读写速度： 

    1. root@myd-jd9x:/mmc# iozone -e -I -a -s 100M -r 1M -i 0 -i 1
    2.         Iozone: Performance Test of File I/O
    3.                 Version $Revision: 3.489 $
    4.                 Compiled for 64 bit mode.
    5.                 Build: linux 
    6.  
    7.         Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
    8.                      Al Slater, Scott Rhine, Mike Wisner, Ken Goss
    9.                      Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
    10.                      Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
    11.                      Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
    12.                      Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
    13.                      Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
    14.                      Vangel Bojaxhi, Ben England, Vikentsi Lapa,
    15.                      Alexey Skidanov, Sudhir Kumar.
    16.  
    17.         Run began: Fri Jan  1 00:23:55 2066
    18.  
    19.         Include fsync in write timing
    20.         O_DIRECT feature enabled
    21.         Auto Mode
    22.         File size set to 102400 kB
    23.         Record Size 1024 kB
    24.         Command line used: iozone -e -I -a -s 100M -r 1M -i 0 -i 1
    25.         Output is in kBytes/sec
    26.         Time Resolution = 0.000001 seconds.
    27.         Processor cache size set to 1024 kBytes.
    28.         Processor cache line size set to 32 bytes.
    29.         File stride size set to 17 * record size.
    30.                                                               random    random     bkwd    record    stride                                    
    31.               kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
    32.           102400    1024    81814    81549   244964   254929                                                                                  
    33.  
    34. iozone test complete.

     3. 建立网络连接，方便文件传输

     首先在PC端配置网口为固定IP（windows为例）： 

    在开发板，先查看所有网络设备：

    1. root@myd-jd9x:~# ifconfig -a
    2. can0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
    3.           NOARP  MTU:16  Metric:1
    4.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    5.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    6.           collisions:0 txqueuelen:10 
    7.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    8.           Interrupt:47 
    9.  
    10. can1      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
    11.           NOARP  MTU:16  Metric:1
    12.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    13.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    14.           collisions:0 txqueuelen:10 
    15.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    16.           Interrupt:48 
    17.  
    18. eth0      Link encap:Ethernet  HWaddr DA:8D:4E:34:29:06  
    19.           BROADCAST MULTICAST  MTU:1500  Metric:1
    20.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    21.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    22.           collisions:0 txqueuelen:1000 
    23.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    24.           Interrupt:42 
    25.  
    26. eth1      Link encap:Ethernet  HWaddr F2:37:37:90:2E:7D  
    27.           BROADCAST MULTICAST  MTU:1500  Metric:1
    28.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    29.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    30.           collisions:0 txqueuelen:1000 
    31.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    32.           Interrupt:43 
    33.  
    34. lo        Link encap:Local Loopback  
    35.           inet addr:127.0.0.1  Mask:255.0.0.0
    36.           inet6 addr: ::1/128 Scope:Host
    37.           UP LOOPBACK RUNNING  MTU:65536  Metric:1
    38.           RX packets:2472 errors:0 dropped:0 overruns:0 frame:0
    39.           TX packets:2472 errors:0 dropped:0 overruns:0 carrier:0
    40.           collisions:0 txqueuelen:1000 
    41.           RX bytes:182912 (178.6 KiB)  TX bytes:182912 (178.6 KiB)
    42.  
    43. mlan0     Link encap:Ethernet  HWaddr 5C:C5:63:4F:65:50  
    44.           BROADCAST MULTICAST  MTU:1500  Metric:1
    45.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    46.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    47.           collisions:0 txqueuelen:1000 
    48.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    49.  
    50. p2p0      Link encap:Ethernet  HWaddr 5E:C5:63:4F:65:50  
    51.           BROADCAST MULTICAST  MTU:1500  Metric:1
    52.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    53.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    54.           collisions:0 txqueuelen:1000 
    55.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    56.  
    57. tunl0     Link encap:UNSPEC  HWaddr 00-00-00-00-30-30-00-30-00-00-00-00-00-00-00-00  
    58.           NOARP  MTU:1480  Metric:1
    59.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    60.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    61.           collisions:0 txqueuelen:1000 
    62.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    63.  
    64. uap0      Link encap:Ethernet  HWaddr 5C:C5:63:4F:66:50  
    65.           BROADCAST MULTICAST  MTU:1500  Metric:1
    66.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    67.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    68.           collisions:0 txqueuelen:1000 
    69.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    配置打开以太网口，并配置固定IP， 分别把两个网口固定IP设置为192.168.0.101和192.168.0.102， 并互拼一下： 

    1. root@myd-jd9x:~# ifconfig eth1 192.168.0.102  netmask 255.255.255.0 up
    2. root@myd-jd9x:~# ifconfig
    3. eth0      Link encap:Ethernet  HWaddr DA:8D:4E:34:29:06  
    4.           inet addr:192.168.0.101  Bcast:192.168.0.255  Mask:255.255.255.0
    5.           UP BROADCAST MULTICAST  MTU:1500  Metric:1
    6.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    7.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    8.           collisions:0 txqueuelen:1000 
    9.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    10.           Interrupt:42 
    11.  
    12. eth1      Link encap:Ethernet  HWaddr F2:37:37:90:2E:7D  
    13.           inet addr:192.168.0.102  Bcast:192.168.0.255  Mask:255.255.255.0
    14.           UP BROADCAST MULTICAST  MTU:1500  Metric:1
    15.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    16.           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    17.           collisions:0 txqueuelen:1000 
    18.           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    19.           Interrupt:43 
    20.  
    21. lo        Link encap:Local Loopback  
    22.           inet addr:127.0.0.1  Mask:255.0.0.0
    23.           inet6 addr: ::1/128 Scope:Host
    24.           UP LOOPBACK RUNNING  MTU:65536  Metric:1
    25.           RX packets:2631 errors:0 dropped:0 overruns:0 frame:0
    26.           TX packets:2631 errors:0 dropped:0 overruns:0 carrier:0
    27.           collisions:0 txqueuelen:1000 
    28.           RX bytes:195856 (191.2 KiB)  TX bytes:195856 (191.2 KiB)
    29.  
    30. root@myd-jd9x:~# ping 192.168.0.102
    31. PING 192.168.0.102 (192.168.0.102): 56 data bytes
    32. 64 bytes from 192.168.0.102: seq=0 ttl=64 time=0.916 ms
    33. 64 bytes from 192.168.0.102: seq=1 ttl=64 time=0.793 ms
    34. 64 bytes from 192.168.0.102: seq=2 ttl=64 time=1.175 ms

     上位机在命令行下ping下开发板，确认可以连接：

    为了方便后续加载传输可执行文件，下载安装filezilla进行ftp连接， 然后打开，连接开发板， 输入用户root，密码admin（或自己设定的其他密码），端口22， 连接成功： 

    基本特性及连接配置完成，下一节开始编程测试。 

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  • 原文地址：https://blog.csdn.net/pocean2012/article/details/133306397