Diff: main.cpp

Revision:

0:208bd045dd31

Child:

1:3348d15fefdb

diff -r 000000000000 -r 208bd045dd31 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 12 13:46:17 2016 +0000
@@ -0,0 +1,112 @@
+#include "mbed.h"
+#include "mDot.h"
+#include "MTSLog.h"
+#include "MTSText.h"
+
+using namespace mts;
+
+#define REED_PORT   PA_3
+Serial pc(USBTX,USBRX);
+DigitalIn reed_gpio(REED_PORT);
+
+
+int reed_lock_write = 0;
+int reed_lock_read = 0;
+int reed_has_changed = 0;
+int reed_value = 0;
+int reed_value_to_send = 0;
+int reed_value_last_sent = 0;
+
+ void isr_reed_sensor_change(void) {
+
+    while(reed_lock_read) {}
+    reed_lock_write = 1;
+    
+    reed_has_changed = 1;
+    reed_value = reed_gpio;
+
+    reed_lock_write = 0;
+}
+
+int has_reed_changed(void) {
+    
+    int change;
+    
+    while(reed_lock_write) {}
+    reed_lock_read = 1;
+    
+    change = reed_value_last_sent != reed_value;
+    reed_value_to_send = reed_value;
+    reed_has_changed = 0;
+    
+    reed_lock_read = 0;
+    
+    return(change);
+}
+    
+void has_reed_changed_since_last_sent(void) {
+    
+    int change;
+    
+    has_reed_changed();
+    
+    change = reed_value_to_send != reed_value_last_sent;
+    
+    return(change);
+}
+
+void send_reed(void) {
+    
+    reed_value_last_sent = reed_value_to_send;
+
+    pc.printf("Sending REED = %d\r\n",reed_value_to_send);
+}
+    
+
+int main() {
+    
+    mDot* dot;
+    long last_sent = 0;
+    
+    pc.attach(&callback,RawSerial::RxIrq);
+    pc.baud(115200);
+    
+    pc.printf("\r\n\r\n********************************\r\n");
+    pc.printf(        "*                              *\r\n");
+    pc.printf(        "*            Edge Reed         *\r\n");
+    pc.printf(        "*                              *\r\n");
+    pc.printf(        "* Build: " __DATE__ ", " __TIME__" *\r\n");
+    pc.printf(        "********************************\r\n\r\n");
+
+    dot = mDot::getInstance();
+
+    InterruptIn *reed_sensor_change;
+    reed_sensor_change = new InterruptIn(REED_PORT);
+    reed_sensor_change->fall(&isr_reed_sensor_change);
+    reed_sensor_change->rise(&isr_reed_sensor_change);
+     
+    while (true) {
+        
+        int time_since_last_sent = time(NULL) - last_sent;
+        
+        if(time_since_last_sent > 60) {
+            
+            has_reed_changed();
+            send_reed();
+            last_sent = time(NULL);
+        }
+        
+        if(has_reed_changed() && time_since_last_sent>10) {
+            
+           Thread::wait(100);
+           
+           if(has_reed_changed_since_last_sent()) {
+           
+                send_reed();
+                last_sent = time(NULL);
+            }
+        }
+                
+        dot->sleep(sleep_time, mDot::RTC_ALARM_OR_INTERRUPT, true);
+    }
+}
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