beaglebone black wireless開發板系統移植

移植和啟動

1. TI官方Linux系统移植WiKi
   Kernal使用 am33x-v4.19 (Longterm 4.19.x)
2. BeagleBone Black学习（一）—— 移植和启动

開發板手動設定wifi

ubuntu@arm:~$ sudo connmanctl
[sudo] password for ubuntu:
Error getting VPN connections: The name net.connman.vpn was not provided by any 

connmanctl> enable wifi
Error wifi: Already enabled

connmanctl> scan wifi
Scan completed for wifi

connmanctl> services
    WIFIEB6EC7           wifi_38d269d11b40_57494649454236454337_managed_psk
    Divya 213 2.4G       wifi_38d269d11b40_44697679612032313320322e3447_managed_psk
    Beatles              wifi_38d269d11b40_426561746c6573_managed_psk
    DIRECT-cR[TV]Time killer wifi_38d269d11b40_4449524543542d63525b54565d54696d65206b696c6c6572_managed_psk
    MySpectrumWiFi30-2G  wifi_38d269d11b40_4d79537065637472756d5769466933302d3247_managed_psk
    ATTipFFrCI           wifi_38d269d11b40_41545469704646724349_managed_psk

connmanctl> agent on
Agent registered

// Connect to your Wi-Fi hotspot
connmanctl> connect wifi_38d269d11b40_44697679612032313320322e3447_managed_psk
Passphrase? xxxxxxxx
connected wifi_38d269d11b40_44697679612032313320322e3447_managed_psk

connmanctl> quit

// Find out IP address of BeagleBone Black Wireless
ubuntu@arm:~$ ifconfig
wlan0: flags=-28605<UP,BROADCAST,RUNNING,MULTICAST,DYNAMIC>  mtu 1500
        inet *192.168.1.16*  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::3ad2:69ff:fed1:1b40  prefixlen 64  scopeid 0x20<link>
        ether 38:d2:69:d1:1b:40  txqueuelen 1000  (Ethernet)
        RX packets 38  bytes 4684 (4.6 KB)
        RX errors 0  dropped 6  overruns 0  frame 0
        TX packets 56  bytes 8886 (8.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

// Ping Google to confirm connection
ubuntu@arm:~$ ping www.google.com
PING www.google.com (216.58.219.4) 56(84) bytes of data.
64 bytes from lax17s03-in-f4.1e100.net (216.58.219.4): icmp_seq=1 ttl=53 time=26.5 ms
64 bytes from lax17s03-in-f4.1e100.net (216.58.219.4): icmp_seq=2 ttl=53 time=37.2 ms
64 bytes from lax17s03-in-f4.1e100.net (216.58.219.4): icmp_seq=3 ttl=53 time=25.2 ms
--- www.google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 25.218/29.658/37.205/5.365 ms

重新開機會自動連接到wifi

beaglebone開發板調試開發(僅供參考)

為了方便beaglebone開發板調試，採用NAT的網路設定，將window電腦作為VMware與beagelbone網路收發的中間者，再透過NFS掛載，beaglebone開發版可以直接與VMware裡的資料夾同步
但這個前提是windows電腦需與beaglebone開發板在同一網域下

設定windows防火牆，開啟所需Port

請參考 https://home.gamer.com.tw/creationDetail.php?sn=3249988

1. 分別設定TCP Port=111,2049,9999
   
2. 分別設定UDP Port=111,2049,9999
   

掛載nfs系統

開發板上輸入以下指令

sudo apt-get update
sudo apt-get install nfs-kernel-server nfs-common

開發板連上wifi與外往互通（ping www.google.com 成功）
sudo mount -t nfs -o nolock,vers=3,port=2049,mountport=9999 192.168.0.118:/home/book/nfs_rootfs /mnt
上面設定的IP為windows IP

或是接上USB線與電腦透過usb互通（只要開發板與windows互相pin成功即代表互通）
sudo mount -t nfs -o nolock,vers=3,port=2049,mountport=9999 192.168.7.1:/home/book/nfs_rootfs /mnt

設定編譯工具鏈

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-
export PATH=$PATH:/home/book/gcc-linaro-6.5.0-2018.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-