AutosarOS
App.c
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1 
14 #include "assert.h"
15 
16 #include "OS_API.h"
17 
18 #include <avr/io.h>
19 #include <util/delay.h>
20 
21 #if defined (OS_CONFIG_SIM) && OS_CONFIG_SIM == true
22 #define DELAY_MS(ms)
23 #else
24 #define DELAY_MS(ms) _delay_ms(ms)
25 #endif /* defined (OS_CONFIG_SIM) && OS_CONFIG_SIM == true */
26 
27 TASK(Idle)
28 {
29  while (1);
30 }
31 
32 TASK(Task1)
33 {
34  StatusType stat = SetRelAlarm(Alarm1, 1, 0);
35  assert(stat == E_OK);
36 
37  stat = IncrementCounter(Counter1);
38  assert(stat == E_OK);
39 
40  stat = ChainTask(Task3);
41  assert(stat == E_OK);
42 }
43 
44 TASK(Task2)
45 {
46  StatusType stat = TerminateTask();
47  assert(stat == E_OK);
48 }
49 
50 TASK(Task3)
51 {
52  StatusType stat = SetRelAlarm(Alarm1, 1, 0);
53  assert(stat == E_OK);
54 
55  stat = IncrementCounter(Counter1);
56  assert(stat == E_OK);
57 
58  TaskStateType state = SUSPENDED;
59  stat = GetTaskState(Task2, &state);
60  assert(stat == E_OK && state == READY);
61 
62  stat = TerminateTask();
63  assert(stat == E_OK);
64 }
65 
66 extern void StartupHook(void)
67 {
68  DDRB = 0xFF; // PB as output
69  PORTB = 0xFF; // keep all LEDs off
70 
71  DDRD = 0x00; // PD as input
72  PORTD = 0xFF; // enable PU on PD
73 
74 #if defined (__AVR_ATmega32__)
75 
76 #elif defined (__AVR_ATmega128__) || defined (__AVR_ATmega1284__)
77  /* Timer 2 */
78 #if defined (OS_CONFIG_SIM) && OS_CONFIG_SIM == true
79 #if defined (__AVR_ATmega128__)
80  TCCR2 = (1 << CS20); // Enable Timer2 with Prescaler 1
81  TIMSK |= 1 << TOIE2; // Enable Overflow Interrupt (Timer2)
82 #else /* defined (__AVR_ATmega128__) */
83  TCCR2B = (1 << CS20); // Enable Timer2 with Prescaler 1
84  TIMSK2 |= 1 << TOIE2; // Enable Overflow Interrupt (Timer2)
85 #endif /* defined (__AVR_ATmega128__) */
86 #endif /* defined (OS_CONFIG_SIM) && OS_CONFIG_SIM == true */
87 #else /* defined (__AVR_ATmega32__) */
88 #error Unknown CPU defined!
89 #endif /* defined (__AVR_ATmega32__) */
90 
91  uint8_t t = 0;
92 
93  while (t < 6) {
94  uint8_t r = PORTB;
95  r ^= (1 << 7);
96  PORTB = r;
97  DELAY_MS(50);
98  t++;
99  }
100 }
101 
102 extern void ShutdownHook(StatusType error)
103 {
104  DDRB = 0xFF; // PB as output
105  PORTB = 0xFF; // keep all LEDs off
106 
107  for (uint8_t i = 0; i < 11; i++) {
108  PORTB ^= 0xFF;
109  DELAY_MS(1000);
110  }
111 }
112 
113 extern void PreTaskHook(void)
114 {
115  TaskType task;
116  GetTaskID(&task);
117  TaskStateType state = SUSPENDED;
118  GetTaskState(task, &state);
119 }
120 
121 extern void PostTaskHook(void)
122 {
123  TaskType task;
124  GetTaskID(&task);
125  TaskStateType state = SUSPENDED;
126  GetTaskState(task, &state);
127 }
128 
129 extern void ErrorHook(StatusType error)
130 {
131 
132 }
133 
134 ISR(TIMER2_OVF_vect)
135 {
136 
137 }
TaskType
enum tasks_e TaskType
Type for task reference.
Definition: TaskTypes.h:29
StatusType
enum StatusType_e StatusType
Type for status.
ErrorHook
void ErrorHook(StatusType error)
PostTask hook function.
Definition: App.c:784
StartupHook
void StartupHook(void)
Definition: App.c:702
GetTaskState
#define GetTaskState
Definition: OS_API.h:83
assert.h
Assert macros and functions.
ChainTask
#define ChainTask
Definition: OS_API.h:79
IncrementCounter
#define IncrementCounter
Definition: OS_API.h:36
TASK
TASK(Idle)
Definition: App.c:33
E_OK
@ E_OK
Definition: Types.h:40
ISR
ISR(INT0_vect)
Definition: App.c:806
PreTaskHook
void PreTaskHook(void)
PreTask hook function.
Definition: App.c:768
READY
@ READY
The task is ready to be scheduled.
Definition: TaskTypes.h:60
assert
#define assert(expression)
Definition: assert.h:37
SUSPENDED
@ SUSPENDED
The task is suspended and will not be scheduled.
Definition: TaskTypes.h:58
TerminateTask
#define TerminateTask
Definition: OS_API.h:80
OS_API.h
Operating System API.
DELAY_MS
#define DELAY_MS(ms)
Definition: App.c:24
SetRelAlarm
#define SetRelAlarm
Definition: OS_API.h:27
GetTaskID
#define GetTaskID
Definition: OS_API.h:82
PostTaskHook
void PostTaskHook(void)
PostTask hook function.
Definition: App.c:776
ShutdownHook
void ShutdownHook(StatusType error)
Definition: App.c:757
TaskStateType
enum OsTaskState_e TaskStateType
Task state.