我正在尝试将ADS1015 ADC与我的Pico Pro Maker连接。不幸的是,我遇到以下错误:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.cililing.harvbox.thingsapp, PID: 1855
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:448)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: com.google.android.things.pio.PioException: android.os.ServiceSpecificException: I2C2 is already in use (code 16)
at com.google.android.things.pio.I2cDeviceImpl.<init>(I2cDeviceImpl.java:43)
at com.google.android.things.pio.PeripheralManager.openI2cDevice(PeripheralManager.java:246)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:200)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:187)
at com.cililing.harvbox.thingsapp.thingscontroller.controllers.ADS1015ControllerImpl.<init>(ADS1015Controller.kt:12)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:40)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:33)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.cililing.harvbox.thingsapp.ui.MainActivity.getI2CController(Unknown Source:25)
at com.cililing.harvbox.thingsapp.ui.MainActivity.access$getI2CController$p(MainActivity.kt:33)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2cLogger$1.run(MainActivity.kt:47)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.os.ServiceSpecificException: I2C2 is already in use (code 16)
at android.os.Parcel.readException(Parcel.java:2027)
at android.os.Parcel.readException(Parcel.java:1959)
at com.google.android.things.pio.IPeripheralManagerClient$Stub$Proxy.OpenI2cDevice(IPeripheralManagerClient.java:1243)
at com.google.android.things.pio.I2cDeviceImpl.<init>(I2cDeviceImpl.java:41)
at com.google.android.things.pio.PeripheralManager.openI2cDevice(PeripheralManager.java:246)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:200)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:187)
at com.cililing.harvbox.thingsapp.thingscontroller.controllers.ADS1015ControllerImpl.<init>(ADS1015Controller.kt:12)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:40)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:33)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.cililing.harvbox.thingsapp.ui.MainActivity.getI2CController(Unknown Source:25)
at com.cililing.harvbox.thingsapp.ui.MainActivity.access$getI2CController$p(MainActivity.kt:33)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2cLogger$1.run(MainActivity.kt:47)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
我正在使用以下驱动程序: https://github.com/androidthings/contrib-drivers/tree/master/adc
我已经完成的事情:
我不知道该怎么办。我非常确定设备已正确连接到主板(scl-scl,sda-sda,addr-gnd,a0-other_analog_output),并且错误实际上有点奇怪,因为我敢肯定其他应用程序都不会使用这些引脚。 / p>
负责与外围设备连接的代码:
class ADS1015ControllerImpl(val i2cName: String,
val range: Int) : ADS1015Controller {
private val instance: Ads1xxx = Ads1xxx(i2cName, Ads1xxx.Configuration.ADS1015)
init {
instance.inputRange = range
}
override fun read(channel: Int, logger: (Int) -> Unit) {
logger.invoke(
instance.readSingleEndedInput(channel)
)
}
override fun release() {
instance.close()
}
}
答案 0 :(得分:1)
错误消息I2C2 is already in use (code 16)
表示您正在尝试打开同一I2C总线的多个连接,而没有关闭前一个实例。打开I2C连接的代码位于Ads1xxx
构造函数中。您必须在代码中管理该类的单个实例,或者确定在初始化另一个close()
之前调用Ads1xxx
。
基于堆栈跟踪,它看起来也像该设备在首次访问其值时由延迟加载初始化的,因此很可能在您期望的位置未调用此构造方法,从而导致事情发生订单。
答案 1 :(得分:0)
事实上,问题是插头焊接不良。 :)