我们之前在文档中介绍过如何使用Device Tree Overlay
在Ubuntu下使能M2X ETH
升级系统
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| $ sudo apt update
$ sudo apt full-upgrade
$ sudo do-fenix-full-upgrade
$ sync
$ sudo reboot
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更改Device Tree Overlay的配置，如下：
1、打开/boot/env.txt文件：
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| khadas@khadas:~$ sudo vim /boot/enc.txt
# Device Tree Overlays
# uart3 -- Enable UART3 (uart_C, GPIO Header PIN15 & PIN16)
# pwm_f -- Enable PWM_F (GPIO Header PIN35)
# i2c3 -- Enable i2c3 (GPIO Header PIN22 & PIN23)
# spi1 -- Enable SPI1 (GPIO Header PIN15 & PIN16 & PIN35 & PIN37), pwm_f need to be removed
# os08a10 -- Enable OS08A10 Camera
# onewire -- Enable onewire bus (GPIO Header PIN15)
# disable-ts050 -- Disable TS050 LCD
# m2x-eth -- Enable M2X 100M ethernet. Note: 1G ethernet will be disabled.
# otg-device -- Enable USB OTG Device
overlays=uart3 pwm_f i2c3 os08a10
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其中uart3 pwm_f i2c3 os08a10是默认使能的
2、在overlays中增加m2x-eth使能M2X ETH
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| overlays=uart3 pwm_f i2c3 os08a10 --> overlays=uart3 pwm_f i2c3 os08a10 m2x-eth
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3、保存文件/boot/env.txt并重启系统来使其生效
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| khadas@khadas:~$ sync
khadas@khadas:~$ sudo reboot
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验证M2X ETH是否使能
1、是否可以获取IP地址
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| khadas@Khadas:~$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.100 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::c531:9c16:df20:94f9 prefixlen 64 scopeid 0x20<link>
ether 02:42:82:4b:1d:2f txqueuelen 1000 (Ethernet)
RX packets 113 bytes 13320 (13.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 122 bytes 10072 (10.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 14
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2、是否可以上网
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| khadas@Khadas:~$ ping www.khadas.com
PING td-balancer-sv5-61-96.wixdns.net (185.230.61.96) 56(84) bytes of data.
64 bytes from 185.230.61.96 (185.230.61.96): icmp_seq=1 ttl=241 time=183 ms
64 bytes from 185.230.61.96 (185.230.61.96): icmp_seq=2 ttl=241 time=164 ms
64 bytes from 185.230.61.96 (185.230.61.96): icmp_seq=3 ttl=241 time=165 ms
……
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