Diff: main.cpp

Revision:

0:f38ea4ed5621

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 22 10:26:34 2020 +0000
@@ -0,0 +1,85 @@
+/* 4d systems touch screen display.
+
+uses the mbed_genie library ported from the arduino
+visie-genie library by Christian B
+
+The display serial TX and RX pins are connected to pin PA_9
+and pin PA_10 of the mbed
+
+The reset pin is not connected as reset function is not implemented
+
+For setting up the display in Visie-Genie
+
+The display has an gauge meter object, a LED digits object, two buttons
+and three static text objects.
+
+The On and Off button has been set to report on change
+The baud rate of the display is set to 115200 baud
+*/
+#include "mbed.h"
+#include "mbed_genie.h"
+
+DigitalOut myled(LED1);   //LED 1 for indication
+
+int flag = 0;        //holds the "power status" of the voltmeter. flag = 0 means voltmeter is "off", flag = 1 means the voltmeter is "on".
+float chrono;       //holds the digital voltage value to be sent to the angular meter
+
+//Event handler for the 4d Systems display
+void myGenieEventHandler(void)
+{
+    genieFrame Event;
+    genieDequeueEvent(&Event);
+    //event report from an object
+    if(Event.reportObject.cmd == GENIE_REPORT_EVENT) {
+        /*
+        for example here we check if we received a message from 4dbuttons objects
+        the index is the button number, refer to the 4dgenie project to know the index
+        */
+        if (Event.reportObject.object == GENIE_OBJ_4DBUTTON) {              // If the Reported Message was from a button
+            if (Event.reportObject.index == 0) {
+                //printf("Off Button pressed!\n\r");
+                wait(0.2);
+                flag=1;
+            }
+            if (Event.reportObject.index == 1) {
+                //printf("On Button pressed!\n\r");
+                wait(0.2);
+                flag=0;
+            }
+        }
+    }
+
+    //Cmd from a reported object (happens when an object read is requested)
+    // if(Event.reportObject.cmd == GENIE_REPORT_OBJ)
+    // {
+    // }
+}
+
+int main()
+
+{
+    SetupGenie();
+    genieAttachEventHandler(&myGenieEventHandler);
+    genieWriteContrast(10); //set screen contrast to full brightness
+    chrono=99;
+    
+    while(1) {
+ 
+        if (flag == 1) {
+            //printf("Flag status: %d \r\n", flag);
+            chrono=chrono-1;
+            genieWriteObject(GENIE_OBJ_LED_DIGITS, 0x00, chrono);      //write to Leddigits0 the value of voltLED
+            genieWriteObject(GENIE_OBJ_GAUGE , 0x00, chrono); //write to Angularmeter0 the value of voltMeter*/
+            wait (0.5);
+        }
+
+        else if(flag == 0){
+            genieWriteObject(GENIE_OBJ_LED_DIGITS, 0x00, 0);  
+            genieWriteObject(GENIE_OBJ_GAUGE , 0x00, 0); //write to Angularmeter0 the value of voltMeter
+            chrono=99;
+            wait (0.5);
+            }
+
+    }
+
+}
\ No newline at end of file