Case study Embedded System Design
finished
Dependencies: C12832 DebouncedInterrupt MMA7660 mbed-rtos mbed
Diff: main.cpp
- Revision:
- 3:c31a01f2c064
- Parent:
- 2:ff8262f6a385
--- a/main.cpp Tue Mar 03 13:42:32 2015 +0000
+++ b/main.cpp Fri May 08 10:21:04 2015 +0000
@@ -46,166 +46,162 @@
DigitalOut led_B(p25); //LED RGB Blue
//leds for debug
-DigitalOut led4(LED4); //LED
+DigitalOut led4(LED4); //LED
DigitalOut led3(LED3); //LED
DigitalOut led2(LED2); //LED
-
+
//Global varible
int button_press=0;
-
-void timeout_event(void const *n)
+
+void timeout_event(void const *n)
{
-
- //event via a message queue
- message_t *message = mpool.alloc();
- message->event = TIME_OUT;
- queue.put(message);
-
- led4 = !led4;
-
+
+ //event via a message queue
+ message_t *message = mpool.alloc();
+ message->event = TIME_OUT;
+ queue.put(message);
+
+ led4 = !led4;
+
}
-void button_event_thread(void const *argument) {
-
+void button_event_thread(void const *argument)
+{
+
while (true) {
-
- if (button_press == 1)
- {
-
+
+ if (button_press == 1) {
+
//event via a message queue
message_t *message = mpool.alloc();
- message->event = BUTTON_PRESS;
+ message->event = BUTTON_PRESS;
queue.put(message);
-
+
led3 = !led3;
button_press = 0;
Thread::wait(500);
- }
-
-
-
+ }
+
+
+
}
}
-void tilt_event_thread(void const *argument) {
+void tilt_event_thread(void const *argument)
+{
float tilt_value_Y = MMA.y();
float tilt_value_X = MMA.x();
- while (true)
- {
-
+ while (true) {
+
//debouce delay for switch
-
+
- if (tilt_value_Y <= MMA.y()-0.2 ^ tilt_value_Y >= MMA.y()+0.2 )
- {
+ if (tilt_value_Y <= MMA.y()-0.2 ^ tilt_value_Y >= MMA.y()+0.2 ) {
//event via a message queue
message_t *message = mpool.alloc();
- message->event = TILT;
+ message->event = TILT;
queue.put(message);
-
+
led3 = !led3;
Thread::wait(1500);
tilt_value_Y = MMA.y();
- }
-
-
}
-
-
+
+
+ }
+
+
}
-
-void push_event_thread(void const *argument) {
+
+void push_event_thread(void const *argument)
+{
float push_value = push.read();
- while (true)
- {
-
+ while (true) {
+
//debouce delay for switch
-
- if (push_value >= push.read()- 0.15 ^ push_value <= push.read()+ 0.15 )
- {
+
+ if (push_value >= push.read()- 0.15 ^ push_value <= push.read()+ 0.15 ) {
//event via a message queue
message_t *message = mpool.alloc();
- message->event = PUSH;
+ message->event = PUSH;
queue.put(message);
led3 = !led3;
Thread::wait(1000);
push_value = push.read();
- }
}
-
-
+ }
+
+
}
-void flash_led_thread(void const *argument) {
- while (true)
- {
+void flash_led_thread(void const *argument)
+{
+ while (true) {
Thread::signal_wait(0x1);
-
- for (int i=0;i<=20;i++)
- {
+
+ for (int i=0; i<=20; i++) {
LED_RGB.lock();
- led_R = !led_R;
- LED_RGB.unlock();
+ led_R = !led_R;
+ LED_RGB.unlock();
Thread::wait(100);
- }
+ }
LED_RGB.lock();
- led_R = 1;
- LED_RGB.unlock();
- }
-
-}
+ led_R = 1;
+ LED_RGB.unlock();
+ }
+
+}
-void Button_Inter() {
-//Flash_LED_Thread.signal_set(0x1);
+void Button_Inter()
+{
+//Flash_LED_Thread.signal_set(0x1);
+
+ button_press=1;
+
+}
-button_press=1;
-
-}
-
-int main (void) {
-
-//Thread fsm(fsm_thread);
-Thread button_event(button_event_thread);
-Thread tilt_event(tilt_event_thread);
-Thread push_event(push_event_thread);
-Thread Flash_LED_Thread(flash_led_thread);
-RtosTimer timer(timeout_event, osTimerPeriodic, (void *)0);
+int main (void)
+{
+
+//Thread fsm(fsm_thread);
+ Thread button_event(button_event_thread);
+ Thread tilt_event(tilt_event_thread);
+ Thread push_event(push_event_thread);
+ Thread Flash_LED_Thread(flash_led_thread);
+ RtosTimer timer(timeout_event, osTimerPeriodic, (void *)0);
//Interrupts
-button.rise(&Button_Inter);
+ button.rise(&Button_Inter);
-int state = STATE_0;
+ int state = STATE_0;
-LED_RGB.lock();
-led_R=1;
-led_G=1;
-led_B=1;
-LED_RGB.unlock();
+ LED_RGB.lock();
+ led_R=1;
+ led_G=1;
+ led_B=1;
+ LED_RGB.unlock();
-if (MMA.testConnection()) //setup accler
+ if (MMA.testConnection()) //setup accler
- //start timer with a 2 sec timeout
- timer.start(2000);
-
+ //start timer with a 2 sec timeout
+ timer.start(2000);
+
while (true) {
-
-
- switch(state)
- {
- case STATE_0:
+
+
+ switch(state) {
+ case STATE_0:
osEvent evt = queue.get();
- if (evt.status == osEventMessage)
- {
+ if (evt.status == osEventMessage) {
message_t *message = (message_t*)evt.value.p;
-
-
- if(message->event == BUTTON_PRESS)
- {
+
+
+ if(message->event == BUTTON_PRESS) {
LED_RGB.lock();
led_G=0;
led_R=1;
@@ -214,9 +210,8 @@
lcd.locate(0,2);
lcd.printf("Enter");
state = STATE_1;
- }
- if(message->event == PUSH)
- {
+ }
+ if(message->event == PUSH) {
LED_RGB.lock();
led_G=1; //off
led_R=0; //on
@@ -225,9 +220,8 @@
lcd.locate(0,2);
lcd.printf("Insert Coin push");
state = STATE_0;
- }
- if(message->event == TILT)
- {
+ }
+ if(message->event == TILT) {
LED_RGB.lock();
led_G=1;
led_R=1;
@@ -236,12 +230,11 @@
lcd.locate(0,0);
lcd.printf("STOP");
lcd.locate(0,10);
- lcd.printf("Please Insert Coin");
- Flash_LED_Thread.signal_set(0x1);
+ lcd.printf("Please Insert Coin");
+ Flash_LED_Thread.signal_set(0x1);
state = STATE_2;
- }
- if(message->event == TIME_OUT)
- {
+ }
+ if(message->event == TIME_OUT) {
LED_RGB.lock();
led_G=1;
led_R=0;
@@ -250,31 +243,28 @@
lcd.locate(0,2);
lcd.printf("Hello");
state = STATE_0;
- }
+ }
mpool.free(message);
- }
-
+ }
+
timer.start(2000);
-
- break;
-
+
+ break;
+
case STATE_1:
-
+
evt = queue.get();
- if (evt.status == osEventMessage)
- {
+ if (evt.status == osEventMessage) {
message_t *message = (message_t*)evt.value.p;
-
-
- if(message->event == BUTTON_PRESS)
- {
+
+
+ if(message->event == BUTTON_PRESS) {
lcd.cls();
lcd.locate(0,2);
lcd.printf("Thanks");
state = STATE_1;
- }
- if(message->event == PUSH)
- {
+ }
+ if(message->event == PUSH) {
LED_RGB.lock();
led_R=0;
led_G=1;
@@ -283,25 +273,23 @@
lcd.locate(0,2);
lcd.printf("Hello");
state = STATE_0;
- }
-
+ }
+
mpool.free(message);
- }
-
- timer.start(2000);
-
-
- break;
-
+ }
+
+ timer.start(2000);
+
+
+ break;
+
case STATE_2:
- evt = queue.get();
- if (evt.status == osEventMessage)
- {
+ evt = queue.get();
+ if (evt.status == osEventMessage) {
message_t *message = (message_t*)evt.value.p;
-
- if(message->event == BUTTON_PRESS)
- {
+
+ if(message->event == BUTTON_PRESS) {
LED_RGB.lock();
led_G=0;
led_R=1;
@@ -310,20 +298,18 @@
lcd.locate(0,2);
lcd.printf("Enter");
state = STATE_1;
-
- }
- if(message->event == TILT)
- {
+
+ }
+ if(message->event == TILT) {
lcd.cls();
lcd.locate(0,0);
lcd.printf("STOP");
lcd.locate(0,10);
- lcd.printf("Please Insert Coin");
+ lcd.printf("Please Insert Coin");
state = STATE_2;
- Flash_LED_Thread.signal_set(0x1);
- }
- if(message->event == TIME_OUT)
- {
+ Flash_LED_Thread.signal_set(0x1);
+ }
+ if(message->event == TIME_OUT) {
LED_RGB.lock();
led_R=0;
led_G=1;
@@ -332,22 +318,22 @@
lcd.locate(0,2);
lcd.printf("Insert Coin");
state = STATE_0;
- }
+ }
mpool.free(message);
- }
+ }
timer.start(2000);
-
- break;
-
-
-
+
+ break;
+
+
+
}//End of switch
-
- //toggle led for local testing
- //led2= !led2;
-
+
+ //toggle led for local testing
+ //led2= !led2;
+
}//end of while(1)
-
-
+
+
}
\ No newline at end of file