Diff: main.cpp

Revision:

4:70553c83c65a

Parent:

0:10e3e2697134

Child:

5:e1ade53bce83

--- a/main.cpp	Tue Mar 07 14:02:10 2017 +0000
+++ b/main.cpp	Tue Mar 07 15:15:13 2017 +0000
@@ -1,12 +1,85 @@
+// Paramater Allocation
+// Paramater: 17
+// Log Option: 1 (uSD)
+// Watchdog Pulse Length: 6ms
+// Watchdog Repetion Rate: 0.5
+// Error Display: 1 (LCD)
+// Execution time display: Task5 (LDC display) 
+ 
+
+
 #include "mbed.h"
+#include "MCP23017.h"
+#include "WattBob_TextLCD.h"
+#include "SDFileSystem"
+
+#define     BACK_LIGHT_ON(INTERFACE)    INTERFACE->write_bit(1,BL_BIT)
+#define     BACK_LIGHT_OFF(INTERFACE)    INTERFACE->write_bit(0,BL_BIT)
 
-DigitalOut myled(LED1);
+// Pointers to LCD Screen
+MCP23017            *par_port;  // pointer to 16-bit parallel I/O chip
+WattBob_TextLCD     *lcd;       // pointer to 2*16 character LCD object
+
+// Digital I/O p11 to p20
+DigitalIn FqIn(p11);            // Digital frequency in for measurement
+DigitalIn DSIn(p12);            // Digital switch input
+DigitalOut WD_pulse(p14);       // Watchdog Pulse
+SDFileSystem uSD(p5, p6, p7, p8, "uSD");    //uSD pinout
+
+// Analogue I/O p15 to p20
+AnalogIn A1_in(p15);            // Analogue input to be filtered  
+AnalogIn A2_in(p16);            // Analogue input to be filtered
+
+// Timer objects
+Timer timer;                    // Frequency Timer
+Timer tick;                     // Clock timer for CycExec
+Timer idle;                     // Timer for idle states
+
+// Constant Declaration
+const int SampFreq = 100;
+
+// Variable Declaration
+long int tck = 0;               // Used to define what task is called (CycExec)
 
-int main() {
-    while(1) {
-        myled = 1;
-        wait(0.2);
-        myled = 0;
-        wait(0.2);
-    }
+int period = 0;                 // Frequency timer variable (Frequency Check)
+int freq = 0;                   // Frequency return variable (Frequency Check)
+
+bool switch_state = 0;          // Switch high or low (Digital In)
+    
+int A1_val = 0;                 // Analogue 1 return variable (Analogue In)
+int A2_val = 0;                 // Analogue 2 return variable (Analogue In)
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Main Program
+//
+
+int main()
+{
+    // LCD Init
+    par_port = new MCP23017(p9, p10, 0x40); // initialise 16-bit I/O chip
+    lcd = new WattBob_TextLCD(par_port);    // initialise 2*26 char display
+    par_port->write_bit(1,BL_BIT);          // turn LCD backlight ON
+    lcd->cls(); // clear display 
+    
+    // .csv log Init
+    fp = fopen ("/uSD/log.csv", "w");       // Pointer to log file on uSD
+    fprintf(fp, "Log of Frazer Legge's Embedded Software Assignment 2\n\n"); 
+    
+    // 
+    tick.attach(&CycExec, 0.025);           // Period set to 25ms
+    while(1){
+        }
 }
+
+void CycExec()
+{
+        idle.stop();
+        
+        if(tck % 40 = 0)        // Every Second (needs offset)
+        
+
+    
+
+