khalil Ahmed
/
Elevator
Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Diff: main.cpp
- Revision:
- 0:98c1cd7cd6b7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Jan 18 12:16:48 2011 +0000
@@ -0,0 +1,244 @@
+#include "mbed.h"
+
+#define get_event
+#define ev
+#define green 1
+#define red 0
+#define off 0
+#define on 1
+#define flashing 2
+
+enum state {st_GND_DC,st_GND_DO,st_GND_closing,st_DSING_at1,st_GU_closing,st_GND_opening,st_Top_DC,st_Top_DO,st_waiting_for_GND,st_waiting_for_Top,st_DC_moving_up,st_DC_moving_dwn,};
+enum event {ev_no_event,ev_Top,ev_GND,ev_near_top,ev_near_GND,ev_swt_up,ev_swt_dwn,ev_LVL1_swt,ev_LVL2_swt,ev_mtr_finish,ev_time_out};
+
+int green_flashing, red_flashing;
+
+DigitalOut green_led(LED1);
+DigitalOut red_led(LED4);
+Ticker led_flasher;
+Ticker timer;
+
+void led(int colour, int mode) {
+ switch (colour) {
+ case green:
+ switch (mode) {
+ case off:
+ green_led = off;
+ green_flashing = off;
+ break;
+ case on:
+ green_led = on;
+ green_flashing = off;
+ break;
+ case flashing:
+ green_led = on;
+ green_flashing = on;
+ break;
+ }
+ switch (colour) {
+ case red:
+ switch (mode) {
+ case off:
+ red_led = off;
+ red_flashing = off;
+ break;
+ case on:
+ red_led = on;
+ red_flashing = off;
+ break;
+ case flashing:
+ red_led = on;
+ red_flashing = on;
+ break;
+ }
+ }
+
+ }
+
+ void new_event(int ev) {
+ event_queue[ev_load] = ev;
+ ev_load++;
+ if (ev_load == 8)
+ ev_load = 0;
+ }
+
+ int get_event(void) {
+ int ev;
+ if (ev_load != ev_unload) {
+ ev = event_queue[ev_unload];
+ ev_unload++;
+ if (ev_unload ==8)
+ ev_unload = 0;
+ } else ev = no_event;
+ return ev;
+ }
+
+ void flash(void) {
+ if (green_flashing)
+ green_led = !green_led;
+ if (red_flashing)
+ red_led = !red_led;
+ }
+
+ void update_timeout(void) {
+ if (time_out) {
+ time_out --;
+ if (time_out==0)
+ new_event(ev_time_out);
+ }
+ }
+
+
+
+
+
+
+ int main() {
+
+ int state;
+ led_flasher.attach(&flash,0.15);
+ timer.attach(&update_timeout,0.1);
+ switch (state) {
+ case st_GND_DC:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_swt_up:
+ led(green,flashing);
+ led(red,off);
+ time_out = 20;
+ state = st_GND_opening;
+ break;
+ case ev_swt_dwn:
+ motor(up,1.0,20);
+ state = st_DC_moving_up;
+ break;
+ }
+ }
+ break;
+ case st_GND_DO:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_time_out:
+ led(green,off);
+ led(red,flashing);
+ time_out = 20;
+ state = st_GND_closing;
+ break;
+ case ev_LVL2_swt:
+ led(red,flashing);
+ led(green,off);
+ time_out = 20;
+ state = st_GU_closing;
+ break;
+
+ }
+ }
+ break;
+ case st_GND_closing:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_time_out:
+ led(red,on);
+ state = st_GND_DC;
+ break;
+ }
+ }
+ break;
+ case st_GND_opening:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_time_out:
+ led(green,on);
+ time_out = 20;
+ state = st_GND_DC;
+ break;
+ }
+ }
+ break;
+ case st_Top_DC:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case st_Top_DC:
+ led(red, of);
+ time_out = 20;
+ state = st_GND_DC;
+ break;
+ }
+ }
+ break;
+ case st_Top_DO:
+ ev = get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_time_out:
+ time_out = 50;
+ led(green, off);
+ led(red,flashing);
+ state= st_DSING_at1,
+ break;
+
+ }
+
+ }
+ break;
+ case st_DSING_at1:
+ ev = get_event();
+ if (ev!=no_event)
+ switch (ev) {
+ case ev_time_out:
+ time_out= 20;
+ led(red, off);
+ state = st_Top_DC;
+ break;
+ }
+ break;
+ case st_waiting_for_GND:
+
+ break;
+ case st_waiting_for_Top:
+ ev= get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_Top:
+ motor(up,0.0,0.0);
+ led(green,flashing);
+ led(red, off);
+ state= st_Top_DO;
+ break;
+
+ }
+ }
+
+ break;
+ case st_DC_moving_up:
+ ev= get_event();
+ if (ev!=no_event) {
+ switch (ev) {
+ case ev_near_top:
+ motor(up,1.0,1.0);
+ state= st_waiting_for_Top;
+ break;
+ }
+ }
+
+ break;
+ case DC_moving_dwn:
+ ev= get_event();
+ if (ev!=no_event) {
+ switch {
+ case ev_near_GND:
+ motor(dwn,0.1,2);
+ state= st_waiting_for_GND;
+ break;
+ }
+ }
+ break;
+
+
+ }
+}
\ No newline at end of file