# wsn

**Repository Path**: zobinHuang/wsn

## Basic Information

- **Project Name**: wsn
- **Description**: 2020国重代码
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 1
- **Created**: 2020-12-03
- **Last Updated**: 2021-03-11

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 2020国重代码 - 多模智能感知终端

这份文档记录了终端板子的各种配置信息以及代码结构等，供后续参考。

## **Sink部分**
### **1. linux野火板子配置**

(A) **配置支持wifi ap功能的固件（在windows下）**

    1. 连接USB OTG和串口，将拨码开关1，3，6拨至on，其余拨至off。连接串口终端。

    2. 下载 fire_linux.rar，并将其放置于根目录下（下载地址：链接：https://pan.baidu.com/s/1cWZGfmfp-iX1DEJmZ5HIqg【提取码：g1d7】）

    3. 解压 ./fire_linux.rar，使用 ./fire_linux/mfgtools-release/MfgTool2.exe 进行固件烧录，以支持使板子支持wifi ap功能。

    4. 烧录完成后将拨码开关2，3，6拨至on，其余拨至off，重启板子。
    
    5. 使用sudo fire-config 命令打开配置终端，在里面enable wifi， 点击finish来重启板子，正常情况下重启之后ifconfig能看到wlan0网卡。

(B) **板载编译环境配置**
```bash
    1. sudo apt-get update #更新一下
    2. sudo apt-get install gcc make #安装编译环境
```
(C) **无线热点配置**

+ 安装软件
apt-get install wireless-tools hostapd dnsmasq iw


+ 下载脚本
```bash
	git clone  https://github.com/Embedfire-imx6/ebf-tools-src.git
	cd ebf-tools-src/create_ap/
	chmod +x create_ap
	
```
+ 配置环境

执行命令update-alternatives --config iptables，输入数字1
```bash
root@npi:~/ebf-tools-src/create_ap# update-alternatives --config iptables
There are 2 choices for the alternative iptables (providing /usr/sbin/iptables).

  Selection    Path                       Priority   Status
------------------------------------------------------------
* 0            /usr/sbin/iptables-nft      20        auto mode
  1            /usr/sbin/iptables-legacy   10        manual mode
  2            /usr/sbin/iptables-nft      20        manual mode

Press <enter> to keep the current choice[*], or type selection number: 1
update-alternatives: using /usr/sbin/iptables-legacy to provide /usr/sbin/iptables (iptables) in manual mode
```
+ 运行脚本

假设wifi接口为wlan0，连接外网的接口是eth1，创建一个热点，名字为IOT-SINK，密码为12345678，
运行脚本./create_ap wlan0 eth1 IOT-SINK 12345678 --no-virt，看到如下的终端信息，说明创建成功
```bash
root@npi:~/ebf-tools-src/create_ap# ./create_ap wlan0 eth1 npi 123456789 --no-virt
Config dir: /tmp/create_ap.wlan0.conf.angbAubQ
PID: 1198
command failed: Input/output error (-5)
[ 2030.385168] [dhd-wlan0] wl_android_wifi_on : in g_wifi_on=0
[ 2031.789838] [dhd] dhd_conf_read_config : Ignore config file /lib/firmware/bcm/AP6236/Wi-Fi/config.txt
[ 2031.799704] [dhd] dhd_conf_set_path_params : Final fw_path=/lib/firmware/bcm/AP6236/Wi-Fi/fw_bcm43436b0.bin
[ 2031.811048] [dhd] dhd_conf_set_path_params : Final nv_path=/lib/firmware/bcm/AP6236/Wi-Fi/nvram_ap6236.txt
[ 2031.822085] [dhd] dhd_conf_set_path_params : Final clm_path=/lib/firmware/bcm/AP6236/Wi-Fi/clm_bcm43436b0.blob
[ 2031.833326] [dhd] dhd_conf_set_path_params : Final conf_path=/lib/firmware/bcm/AP6236/Wi-Fi/config.txt
[ 2032.071716] [dhd] dhd_conf_set_txglom_params : txglom_mode=multi-desc
[ 2032.081340] [dhd] dhd_conf_set_txglom_params : txglomsize=36, deferred_tx_len=0
[ 2032.090616] [dhd] dhd_conf_set_txglom_params : txinrx_thres=128, dhd_txminmax=-1
[ 2032.099353] [dhd] dhd_conf_set_txglom_params : tx_max_offset=0, txctl_tmo_fix=300
[ 2032.108213] [dhd] dhd_conf_get_disable_proptx : fw_proptx=1, disable_proptx=-1
[ 2032.195122] [dhd] dhd_conf_set_country : set country CN, revision 0
[ 2032.209100] [dhd] dhd_conf_set_country : Country code: CN (CN/0)
[ 2032.225268] [dhd] CONFIG-ERROR) dhd_conf_set_intiovar : ampdu_mpdu setting failed -29
[ 2032.233274] [dhd-wlan0] wl_android_wifi_on : Success
Sharing Internet using method: nat
hostapd command-line interface: hostapd_cli -p /tmp/create_ap.wlan0.conf.angbAubQ/hostapd_ctrl
Configuration file: /tmp/create_ap.wlan0.conf.angbAubQ/hostapd.conf
rfkill: Cannot open RFKILL control device
[ 2032.744618] [dhd-wlan0] wl_cfg80211_del_station : Disconnect STA : 66:66:3a:66:66:3a scb_val.val 3
Using interface wlan0 with hwaddr 28:ed:e0:75:3c:9e and ssid "npi"
[ 2032.842184] [dhd-wlan0] wl_cfg80211_set_channel : netdev_ifidx(5), chan_type(1) target channel(1)
[ 2032.907914] [dhd-wlan0] wl_cfg80211_bcn_bringup_ap : Creating AP with sec=wpapsk/mfpn/0x46
[ 2032.922593] [dhd-wlan0] wl_iw_event : Link UP with 28:ed:e0:75:3c:9e
[ 2032.929155] [dhd-wlan0] wl_ext_iapsta_event : [A] Link up w/o creating? (etype=16)
[ 2032.946892] [dhd-wlan0] wl_notify_connect_status_ap : AP/GO Link up
wlan0: interface state UNINITIALIZED->ENABLED
wlan0: AP-ENABLED

```

### **2. sink代码结构**
(A) sink

    * sink.c: 主函数，使用select机制与多个底层终端进行通信
    * configure.c: 用于读取配置参数数据
    * route.c: M2M南北向通信，路由转发所使用的关键函数
    * SockList.c: 套接字管理相关的函数
    * cJSON.c: JSON调用接口

(B) connection_client

    * 终端模拟器（用于检测server代码的多路接入和路由功能，开发测试用）