heartbeatTask.c File Reference

Source code of heartbeatTask which shows that scheduling is working. Also used for debuging. More...

#include "../INC/heartbeatTask.h"

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Functions
void	HeartbeatTask (void *pdata)
	The task for the hearbeat and the debug-mode. More...
void	nextHeartbeatStep (heartbeatState_t *heartbeatStatePtr)
	State machine for the heartbeat. More...
void	debugAndHeartbeat (heartbeatState_t *heartbeatStatePtr)
	This function implements the debug-logic. More...

Variables
OS_FLAG_GRP *	heartbeatTaskFlagsGrp
	The flags group used in the heartbeat-task and user-input-task. More...

Detailed Description

Source code of heartbeatTask which shows that scheduling is working. Also used for debuging.

Author

Michael Riedel

Marc Kossmann

Version

v1.0.0

Date

11.11.2014

History:

v0.1.0 30.10.2014 Riedel

• first draft for milestone 1b

v0.1.1 31.10.2014 Riedel

• added hardware-access to heartbeat

v0.1.2 31.10.2014 Riedel & Kossmann

• finilized heartbeat functionality

v0.1.3 02.11.2014 Riedel

• finalized Debug functionality

v1.0.0 11.11.2014 Riedel & Kossmann

• switched stepsReg-inc/dec in debug-mode

Definition in file heartbeatTask.c.

Function Documentation

void debugAndHeartbeat

(

heartbeatState_t *

heartbeatStatePtr

)

This function implements the debug-logic.

In Debug-mode, the registers are read and set in predefined intervals. It automatically calls the nextHeartbeatStep()-function to change the states.

subfunction	state
next heartbeat-step	every
check Run-Bit in ctrlReg	every
check Dir-Bit in ctrlReg	every
set stepsReg (+10 / -10)	every
set IR-Bit in ctrlReg	FOURTH

Parameters

heartbeatStatePtr

Points to the state-structure containing the actual state.

Definition at line 84 of file heartbeatTask.c.

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void HeartbeatTask

(

void *

pdata

)

The task for the hearbeat and the debug-mode.

This task is doing a heartbeat to show scheduling is working. Therefore changes its state every second via the nextHeartbeatStep()-function. When the UserInputTask detects, that the user activated the Debug-Mode, it sends the DEBUG_ON_EVENT. The task then calls the debugAndHeartbeat()-function.

Parameters

pdata

: Pointer to parameter structure (not used)

Definition at line 29 of file heartbeatTask.c.

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void nextHeartbeatStep

(

heartbeatState_t *

heartbeatStatePtr

)

State machine for the heartbeat.

The state machine activates and deactivates the red LED9 and shows the defined HEX-values (LOWER_O, UPPER_O and LINE) on HEX3 accordingly after 1 second.

Parameters

heartbeatStatePtr

Points to the state-structure containing the actual state.

Definition at line 56 of file heartbeatTask.c.

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Variable Documentation

OS_FLAG_GRP* heartbeatTaskFlagsGrp

The flags group used in the heartbeat-task and user-input-task.

This group contains the debug-event that can be triggered via sw_9.

Definition at line 42 of file events.h.