Diff: main.cpp

Revision:

3:dd4eb355f8d9

Parent:

2:c9b24787d5e1

Child:

4:2264789de7b2

--- a/main.cpp	Fri Aug 25 10:22:51 2017 +0000
+++ b/main.cpp	Wed Aug 30 15:09:56 2017 +0000
@@ -2,10 +2,10 @@
 
 int main()
 {
-    pc.baud(115200);
     lcd_intro();
     calibrateJoystick(); ///calibrate joystick
     settings_menu();
+    lcd.clear();
     dref.rise(&voltageRise); /// set interrupt to calculate reference frequency
     setupK64Fclocks();
     //settings_menu();
@@ -13,10 +13,29 @@
     while (ref_freq < 1e2) {
         sleep();
     }
+    
+    double freq_check = ref_freq*0.001;
+    double out_speed = 2*var_speed;
+    
+    if (freq_check < out_speed) {
+        lcd.printString("RefFreq Low",0,0);
+        lcd.printString("OR: ",0,1);
+        lcd.printString("AnOut too Fast",0,2);
+        
+        while (freq_check < out_speed) {
+            sleep();
+        }
+    }
     /// make sure frequency is read before we go to the program
     /// cancel event-triggered rise interrupt, not to interfere with program
     dref.rise(NULL);
     pc.printf("Ref_Freq is:%.2f kHz\n\r",ref_freq*0.001);
+    lcd.clear();
+    char refFreq_char[20]; ///create an array of chars
+    sprintf(refFreq_char,"%.3f",ref_freq); ///create string
+    
+    lcd.printString("Ref Freq: ",0,0);        
+    lcd.printString(refFreq_char,35,1);
     /// constant 6 for correct sampling time 
     /// compensates for delay caused by computations
     sample_freq = 6*samples16*ref_freq;
@@ -25,9 +44,17 @@
     initDAC();
     delay_freq = ref_freq*amp_points;
     amplitude_delay = 1/delay_freq;
+    
+    wait(1);
+    lcd.clear();
+    lcd.printString("LIA ",0,0);
+    lcd.printString("In process...",0,1);
+    lcd.refresh();
     /// find the offset of the signal
     offset_ticker.attach(&offset_isr,0.001);
-
+    
+    double update_value = 0.0;
+    
     while (offset == 0) {
         if (g_offset_flag == 1) {
             g_offset_flag = 0;
@@ -37,8 +64,9 @@
     }
     offset_ticker.detach();
     /// once the offset is calculated detach the offset ticker
-    /// attach the output ticker to update every 1 ms
-    output_ticker.attach(&output_isr,0.00099);
+    /// attach the output ticker to update every x ms
+    update_value = var_speed*0.001;
+    output_ticker.attach(&output_isr,update_value);
     
     while (true) {
         // gpo = !gpo;
@@ -48,7 +76,7 @@
         if (g_output_flag == 1) {
             g_output_flag = 0;
             //aout = max(samples16);
-            aout = 2*max(samples16); 
+            aout = var_gain*max(samples16); 
             /// DC output by taking the maximum value of the mixed signal (R)
         }
     }
@@ -164,6 +192,11 @@
 }   
 void lcd_intro()
 {
+    pc.baud(115200);
+    joyButton.rise(&joyButton_isr); ///assign rise with ISR
+    joyButton.mode(PullDown); ///use PullDown mode
+    swButton.rise(&swButton_isr); ///assign rise with ISR
+    swButton.mode(PullDown); ///use PullDown mode
     lcd.init();
     lcd.setBrightness(0.7); // put LED backlight on 50%
     lcd.printString("THE CIRCUIT IS",1,1);
@@ -185,20 +218,138 @@
             g_menu_flag = 0;
             
             updateJoystick();
-            lcd.clear();
+            init_LIA_menu();
+            setup_selector();
+            
+            lcd.refresh();
+            
+            
+        }
+        sleep();
+    }
+    menu_ticker.detach();
+}
+
+void init_LIA_menu() {
+       lcd.clear();
             
             lcd.printString("Settings:",0,0);
             
             char gain_char[20]; ///create an array of chars
-            sprintf(gain_char,"Gain:%.2f",var_gain); ///create string
+            
+            sprintf(gain_char,"%.2f",var_gain); ///create string
             
              char speed_char[20]; ///create an array of chars
-            sprintf(speed_char,"Speed:%.2f",var_speed); ///create string
+            sprintf(speed_char,"%.2f",var_speed); ///create string
             
-            lcd.printString(gain_char,0,2);
-            lcd.printString(speed_char,0,3);
-            lcd.refresh();
+            lcd.printString("Gain: ",0,1);
+            lcd.printString(gain_char,35,2);
+            lcd.printString("Speed (ms)",0,3);
+            lcd.printString(speed_char,35,4);
+            lcd.printString("Confirm",0,5);
+}
+
+void setup_selector()
+{
+    switch (joystick.direction) { ///check the direction of joystick
+        case UP:
+            menu_option--;
+            break;
+        case DOWN:
+            menu_option++;
+            break;
+        case RIGHT:
+            switch (menu_option) {
+                case 0:
+                    var_gain += 0.1;
+                    if (var_gain > 3)
+                        var_gain = 0.1;
+                    break;
+                case 1:
+                    var_speed++;
+                    if (var_speed > 10)
+                        var_speed = 1;
+                    break;
+            }
+            break;
+        case LEFT:
+            switch (menu_option) {
+                case 0:
+                    var_gain -= 0.1;
+                    if (var_gain < 0.1)
+                        var_gain = 3;
+                    break;
+                case 1:
+                    var_speed--;
+                    if (var_speed < 1)
+                        var_speed = 10;
+                    break;
+            }
+            break;
+    }
+    if (menu_option < 0) { /// if the last (down) option is set for selection and user presses joystick down, selector moves at the top
+        menu_option = 2;
+    }
+    if (menu_option > 2) { /// if the first (up) option is set for selection and user presses joystick up, selector moves at the bottom
+        menu_option = 0;
+    }
+
+    if (menu_option == 0) { ///selection in menu depends on the value of int option
+        lcd.drawCircle(75,10,3,1);
+    } else if (menu_option == 1) {
+        lcd.drawCircle(75,27,3,1);
+    } else if (menu_option == 2) {
+        lcd.drawCircle(55,43,3,1);
+        if (g_joyButton_flag == 1) {
+            g_joyButton_flag = 0;
+            confirmationJoyButton();   
         }
+    }
+    g_joyButton_flag = 0;
+}
+
+void confirmationJoyButton () {
+    
+    bool confirm = 1;
+    while (confirm) {
+        lcd.clear();
+        lcd.printString("Continue ?",0,0);
+        lcd.printString("Yes",0,2);
+        lcd.printString("No",0,3);
+        updateJoystick();
+        switch (joystick.direction) { ///check the direction of joystick
+            case UP:
+                save_option--;
+                break;
+            case DOWN:
+                save_option++;
+                break;
+        }
+
+        if (save_option < 0) { /// if the last (down) option is set for selection and user presses joystick down, selector moves at the top
+            save_option = 1;
+        }
+        if (save_option > 1) { /// if the first (up) option is set for selection and user presses joystick up, selector moves at the bottom
+            save_option = 0;
+        }
+
+        if (save_option == 0) {
+            lcd.drawCircle(30,19,3,1);
+        }
+        else if (save_option == 1) { 
+            lcd.drawCircle(30,28,3,1);
+        }
+        if (g_swButton_flag == 1) {
+            g_swButton_flag = 0;
+            if (save_option == 0) {
+                confirm = 0; // exit continue
+                exit_menu = 1; // exit menu   
+            }
+            else if (save_option == 1) {
+                confirm = 0; // just exit continue   
+            }
+        }
+        lcd.refresh();
         sleep();
     }
 }
@@ -209,6 +360,15 @@
 
 void timeout_isr() {}
 
+void joyButton_isr() {
+    g_joyButton_flag = 1;   
+}
+
+
+void swButton_isr() {
+    g_swButton_flag = 1;   
+}
+
 void calibrateJoystick()
 {
     // must not move during calibration
@@ -222,7 +382,7 @@
     joystick.x = xPot - joystick.x0;
     joystick.y = yPot - joystick.y0;
     // read button state
-    joystick.button = joy_button;
+    joystick.button = joyButton;
 
     // calculate direction depending on x,y values
     // tolerance allows a little lee-way in case joystick not exactly in the stated direction
@@ -233,10 +393,11 @@
     } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
         joystick.direction = DOWN;
     } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
-        joystick.direction = RIGHT;
+        joystick.direction = LEFT;
     } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
-        joystick.direction = LEFT;
-    } /*else if (joystick.y > DIRECTION_TOLERANCE  && joystick.x  < DIRECTION_TOLERANCE) {
+        joystick.direction = RIGHT;
+    }/*
+     else if (joystick.y > DIRECTION_TOLERANCE  && joystick.x  < DIRECTION_TOLERANCE) {
         joystick.direction = UP_LEFT;
     } else if (joystick.y > DIRECTION_TOLERANCE && joystick.x > DIRECTION_TOLERANCE) {
         joystick.direction = UP_RIGHT;
@@ -244,5 +405,6 @@
         joystick.direction = DOWN_LEFT;
     }   else if (joystick.y < DIRECTION_TOLERANCE && joystick.x > DIRECTION_TOLERANCE) {
         joystick.direction = DOWN_RIGHT;
-    }*/
+    }
+    */
 }