AIO-3568J资料 | 【TQ0138】
3568J资料:https://www.t-firefly.com/doc/download/103.html维基:https://wiki.t-firefly.com/Core-3568J/
AIO-3568J 找不到RS485口
使用RFID读卡器,给开发板一直发送数据,但开发板这边cat /dev/ttyS3或者S4都收不到数据。 找不到485接口
我用AIO-3568J这个板开发一款开机自启app,代码写好之后,开机不自启#####AndroidManifest.xml 代码如下###
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ceshi.ziqi"
android:installLocation="internalOnly">
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> <!-- 允许改变wifi连接状态 -->
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <!-- 允许应用获取网络状态信息 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <!-- 允许应用获得WiFi信息 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <!-- 获取位置信息 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <!-- 获取手机状态 -->
<uses-permission android:name="android.permission.READ_PHONE_STATE" /> <!-- 读写SD卡 -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<!-- 悬浮窗 -->
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.MedicineBoxAndroid">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- 开机启动广播接收器 -->
<receiver android:name=".receiver.BootReceiver"
android:enabled="true"
android:exported="true">
<intent-filter android:priority="1000">
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>
<!-- 开、关机状态权限 -->
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
</manifest>
##########开机广播接收器BootReceiver内容如下#######
public class BootReceiver extends BroadcastReceiver {
private static final String BOOT_ACTION = "android.intent.action.BOOT_COMPLETED";
private Context mContext;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
mContext = context;
if (BOOT_ACTION.equals(action)){//开机启动广播
bootEvent();
}
}
private void bootEvent(){
Intent intent = new Intent(mContext, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivity(intent);
}
}
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