openharmony hi3518开发板实现自启动程序原创精华

我曾是少年_

发布于 2021-10-27 17:19

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目标：实现开机自动连接wifi

前期准备

1、下载轻量/小型/标准系统源码

修改源码

1、修改/applications/sample/camera/communication/wpa_supplicant/src/wpa_sample.c的main函数

int main(int argc, char *argv[])
{
g_wpaArgc = argc;
for (int i = 0; i < g_wpaArgc; i++) {
g_wpaArg[i] = argv[i];
}

g_wpaArgc=5;
g_wpaArg[1] = "-i";
g_wpaArg[2] = "wlan0";
g_wpaArg[3] = "-c";
g_wpaArg[4] = "/etc/wpa_supplicant.conf";

int ret = pthread_create(&g_wpaThread, NULL, ThreadMain, NULL);
if (ret != 0) {
printf("[WpaSample]create thread failed error:%s.\n", strerror(ret));
return 1;
}
pthread_join(g_wpaThread, NULL);
return 0;
}

2、修改/applications/sample/camera/communication/wpa_supplicant/config/wpa_supplicant.conf文件

country=GB
ctrl_interface=udp
network={
ssid="你的wifi名"
psk="你的wifi密码"
}

修改配置

1、在/build/lite/components/applications.json里添加一个component

{
"component": "wpa_supplicant",
"description": "Communication related samples.",
"optional": "true",
"dirs": [
"applications/sample/camera/communication/wpa_supplicant"
],
"targets": [
"//applications/sample/camera/communication/wpa_supplicant:wpa_sample"
],
"rom": "",
"ram": "",
"output": [],
"adapted_kernel": [ "liteos_a" ],
"features": [],
"deps": {
"components": [],
"third_party": []
}
}

2、在/vendor/hisilicon/hispark_aries/config.json里添加一个component

{
"subsystem": "applications",
"components": [
{ "component": "camera_sample_app", "features":[] },
{ "component": "wpa_supplicant", "features":[] }
]
}

3、在/vendor/hisilicon/hispark_aries/init_configs/init_liteos_a_3518ev300.cfg里添加自启动项

{
"jobs" : [{
"name" : "pre-init",
"cmds" : [
"mkdir /storage/data/log",
"chmod 0755 /storage/data/log",
"chown 4 4 /storage/data/log",
"loadcfg /patch/fstab.cfg",
"mkdir /storage/data/softbus",
"chmod 0700 /storage/data/softbus",
"chown 7 7 /storage/data/softbus",
"mkdir /sdcard",
"chmod 0777 /sdcard",
"mount vfat /dev/mmcblk0 /sdcard rw,umask=000",
"mount vfat /dev/mmcblk1 /sdcard rw,umask=000"
]
}, {
"name" : "init",
"cmds" : [
"start shell",
"start apphilogcat",
"start foundation",
"start bundle_daemon",
"start appspawn",
"start media_server",
"start ai_server",
"start softbus_server",
"start wpa_supplicant"
]
}, {
"name" : "post-init",
"cmds" : [
"chown 0 99 /dev/hdf/dev_mgr",
"chown 0 99 /dev/hdf/hdfwifi",
"chown 0 99 /dev/gpio",
"chown 0 99 /dev/i2c-0",
"chown 0 99 /dev/i2c-1",
"chown 0 99 /dev/i2c-2",
"chown 0 99 /dev/uartdev-0",
"chown 0 99 /dev/uartdev-1",
"chown 0 99 /dev/uartdev-2",
"chown 0 99 /dev/spidev0.0",
"chown 0 99 /dev/spidev1.0",
"chown 0 99 /dev/spidev1.1"
]
}
],
"services" : [{
"name" : "foundation",
"path" : ["/bin/foundation"],
"uid" : 7,
"gid" : 7,
"once" : 0,
"importance" : 1,
"caps" : [10, 11, 12, 13]
}, {
"name" : "shell",
"path" : ["/bin/shell"],
"uid" : 2,
"gid" : 2,
"once" : 0,
"importance" : 0,
"caps" : [4294967295]
}, {
"name" : "appspawn",
"path" : ["/bin/appspawn"],
"uid" : 1,
"gid" : 1,
"once" : 0,
"importance" : 0,
"caps" : [2, 6, 7, 8, 11, 23]
}, {
"name" : "apphilogcat",
"path" : ["/bin/apphilogcat", "-L", "auto"],
"uid" : 4,
"gid" : 4,
"once" : 1,
"importance" : 0,
"caps" : []
}, {
"name" : "media_server",
"path" : ["/bin/media_server"],
"uid" : 0,
"gid" : 0,
"once" : 1,
"importance" : 0,
"caps" : []
}, {
"name" : "wms_server",
"path" : ["/bin/wms_server"],
"uid" : 6,
"gid" : 6,
"once" : 1,
"importance" : 0,
"caps" : []
}, {
"name" : "bundle_daemon",
"path" : ["/bin/bundle_daemon"],
"uid" : 8,
"gid" : 8,
"once" : 0,
"importance" : 0,
"caps" : [0, 1]
}, {
"name" : "ai_server",
"path" : ["/bin/ai_server"],
"uid" : 2,
"gid" : 2,
"once" : 0,
"importance" : 0,
"caps" : []
}, {
"name" : "softbus_server",
"path" : ["/bin/softbus_server"],
"uid" : 0,
"gid" : 0,
"once" : 1,
"importance" : 0,
"caps" : []
}, {
"name": "wpa_supplicant",
"path": ["/bin/wpa_supplicant"],
"uid" : 0,
"gid" : 0,
"once" : 1,
"importance" : 0,
"caps": []
}
]
}

编译并烧录

1、在项目根目录下运行命令hb build -f进行编译

2、编译完成后，在/out/hispark_aries/ipcamera_hispark_aries下找到OHOS_Image.bin，rootfs_jffs2.img，userfs_jffs2.img这3个文件，和/device/hisilicon/hispark_aries/sdk_liteos/uboot/out/boot/u-boot-hi3518ev300.bin文件，使用烧录工具进行烧录。

检测结果

系统运行后执行命令ifconfig查看ip

1、如果连接失败

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