Package org.deepjava.runtime.zynq7000.driver

Class WatchdogTask

java.lang.Object

org.deepjava.runtime.arm32.Task

org.deepjava.runtime.zynq7000.driver.WatchdogTask

All Implemented Interfaces:

Iarm32, Actionable

public class WatchdogTask
extends Task

Task which periodically resets a flink watchdog subdevice, @see org.deepjava.flink.subdevices.FlinkWatchdog. Control Tasks which for instance run a motor controller may periodically set the variable kick to true. If this does not happen within a predefined time or if this watchdog task itself does not run within the same time span, the watchdog will time out and disable a supervised drive.

Field Summary

Fields

Modifier and Type	Field	Description
boolean	kick	Periodically set to true

Fields inherited from class org.deepjava.runtime.arm32.Task

done, firstErr, maxNofTasks, nextTime, nofActivations, period, periodNs, safe, time

Fields inherited from interface org.deepjava.runtime.arm32.Iarm32

ACTLR, CPACR, CPSR, D0, D1, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D2, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D3, D30, D31, D4, D5, D6, D7, D8, D9, FPSCR, ID_ISAR0, ID_ISAR1, ID_ISAR2, ID_ISAR3, LR, LR_ABT, LR_FIQ, LR_IRQ, LR_MON, LR_SVC, LR_UND, LR_USR, MIDR, MPIDR, MPUIR, PC, R0, R1, R10, R10_FIQ, R11, R11_FIQ, R12, R12_FIQ, R2, R3, R4, R5, R6, R7, R8, R8_FIQ, R9, R9_FIQ, S0, S1, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S2, S20, S21, S22, S23, S24, S25, S26, S27, S28, S29, S3, S30, S31, S4, S5, S6, S7, S8, S9, SCTLR, SP, SP_ABT, SP_FIQ, SP_IRQ, SP_MON, SP_SVC, SP_UND, SP_USR, SPSR_ABT, SPSR_FIQ, SPSR_IRQ, SPSR_MON, SPSR_SVC, SPSR_UND

Constructor Summary

Constructors

Constructor	Description
WatchdogTask(int period, int periodWatchdog)	Creates a watchdog task with a given period.

Method Summary

Modifier and Type	Method	Description
void	action()	Action to be performed by the task

Methods inherited from class org.deepjava.runtime.arm32.Task

install, remove, time

Methods inherited from class java.lang.Object

equals, getClass, hashCode, toString

Field Detail

kick

public boolean kick

Periodically set to true

Constructor Detail

WatchdogTask

public WatchdogTask(int period,
                    int periodWatchdog)

Creates a watchdog task with a given period. The watchdog period itself must be slightly higher to prevent unwanted timeouts ion case of large timing jitter of the task periodicity.

Parameters:

period - task period in ms

periodWatchdog - watchdog timeout in ms

Method Detail

action

public void action()

Description copied from class: Task

Action to be performed by the task

Specified by:

action in interface Actionable

Overrides:

action in class Task