本文介紹Linux系統查看硬件配置及常用調試命令，方便開發者快速了解開發板硬件信息及進行相關調試。觸覺智能RK3562開發板演示，搭載4核A53處理器，主頻高達2.0GHz；內置獨立1Tops算力NPU，可應用于物聯網網關、平板電腦、智能家居、教育電子、工業顯示與控制等行業。

查看DDR
獲取內存信息
下面數字以MB為單位。

root@ido:/# free -m
total used free shared buff/cache available
Mem: 1970 287 1316 19 366 1638
Swap: 0 0 0
更詳細信息可以使用下面命令查看
root@ido:/# cat /proc/meminfo
MemTotal: 2017532 kB #總內存的大小
MemFree: 1347508 kB #系統當前可用的空閑內存大小
MemAvailable: 1677712 kB #系統當前可用的內存大小，這包括空閑內存和緩存的內存。
Buffers: 32500 kB
Cached: 309484 kB
SwapCached: 0 kB
Active: 108648 kB
Inactive: 433624 kB
Active(anon): 1080 kB
Inactive(anon): 219252 kB
Active(file): 107568 kB
Inactive(file): 214372 kB
Unevictable: 8132 kB
Mlocked: 0 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 208420 kB
Mapped: 189896 kB
Shmem: 20044 kB
KReclaimable: 33300 kB
Slab: 74908 kB
SReclaimable: 33300 kB
SUnreclaim: 41608 kB
KernelStack: 5328 kB
PageTables: 7736 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 1008764 kB
Committed_AS: 1675032 kB
VmallocTotal: 263061440 kB
VmallocUsed: 11944 kB
VmallocChunk: 0 kB
Percpu: 720 kB
CmaTotal: 16384 kB
CmaAllocated: 1600 kB
CmaReleased: 14784 kB
CmaFree: 2088 kB
查看DDR頻率
下面數字以hz為單位。
root@ido:/# free -m
total used free shared buff/cache available
Mem: 1970 287 1316 19 366 1638
Swap: 0 0 0

查看存儲
查看物理存儲空間
root@ido:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
mmcblk2 179:0 0 14.6G 0 disk
├─mmcblk2p1 179:1 0 4M 0 part
├─mmcblk2p2 179:2 0 4M 0 part
├─mmcblk2p3 179:3 0 64M 0 part
├─mmcblk2p4 179:4 0 128M 0 part
├─mmcblk2p5 179:5 0 32M 0 part
├─mmcblk2p6 179:6 0 2G 0 part /media/ido/userdata
├─mmcblk2p7 179:7 0 128M 0 part /media/ido/oem
└─mmcblk2p8 179:8 0 12.2G 0 part /
mmcblk2boot0 179:32 0 4M 1 disk
mmcblk2boot1 179:64 0 4M 1 disk
查看文件系統空間

root@ido:/# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 12G 3.5G 8.0G 31% /
devtmpfs 974M 8.0K 974M 1% /dev
tmpfs 985M 0 985M 0% /dev/shm
tmpfs 197M 7.6M 190M 4% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 985M 0 985M 0% /sys/fs/cgroup
tmpfs 197M 0 197M 0% /run/user/0
tmpfs 197M 8.0K 197M 1% /run/user/1001
/dev/mmcblk2p7 121M 12M 101M 11% /media/ido/oem
/dev/mmcblk2p6 2.0G 36K 1.8G 1% /media/ido/userdata

查看CPU
查看CPU頻率
下面數字以kHz為單位。

root@ido:/# cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
408000
408000
408000
408000
查看CPU溫度

下面數字以毫攝氏度為單位，需要除以1000即35攝氏度。
root@ido:/# cat /sys/class/thermal/thermal_zone0/temp
34375

查看網絡信息
查看網絡節點及IP
root@ido:~# ifconfig
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.96 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::a60a:bffe:32d2:8a02 prefixlen 64 scopeid 0x20
ether 9a:55:02:97:d9:a2 txqueuelen 1000 (Ethernet)
RX packets 121 bytes 12817 (12.8 KB)
RX errors 0 dropped 2 overruns 0 frame 0
TX packets 31 bytes 5749 (5.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 90 base 0xd000

eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 8a:18:a3:a0:63:c9 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 71

eth2: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 8e:18:a3:a0:63:c9 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 75

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 192 bytes 14785 (14.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 192 bytes 14785 (14.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether c0:f5:35:12:5a:40 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
查看網關
root@ido:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 enp1s0
192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 enp1s0
更多Linux常用系統查詢命令，請關注下集。

產品簡介
觸覺智能RK3562開發板（型號EVB3562），基于瑞芯微新一代Soc RK3562/RK3562J設計，可用于輕量級人工智能應用。EVB3562開發板配備了PCIe2.1/USB3.0 OTG/千兆網口等各類型接口，支持4G/5G通信、多攝像頭及多種視頻接口，可應用于物聯網網關、平板電腦、智能家居、教育電子、工業顯示、工業控制等行業領域。

搭載瑞芯微新一代RK3562/RK3562J芯片；
1TOPS算力NPU，支持INT8/INT16/FP16
等數據類型運算；
支持4K@30FPS與1080P@60FPS視頻解碼；
13M ISP，支持HDR與多路攝像頭視頻采集；
單路MIPI-DSI，最高2048 x 1080@60fps ；
單通道LVDS，最高1366 x 768@60fps ；
三路獨立的以太網口，其中兩路千兆網口，
一路百兆網口；
支持5G/4G/WiFi/藍牙無線通信；
支持Android，Linux操作系統；