Revision 12:cc5bda248946, committed 2020-01-22

Comitter:

emilywilson

Date:

Wed Jan 22 13:08:48 2020 +0000

Parent:

11:2cfdab516b21

Commit message:

mouse extra credit and power management extra credit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Wed Jan 22 13:08:48 2020 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/USBDevice/#c5e178adb138

--- a/main.cpp	Tue Jan 21 21:06:20 2020 +0000
+++ b/main.cpp	Wed Jan 22 13:08:48 2020 +0000
@@ -7,7 +7,8 @@
 //#include "part8.h"
 //#include "part9.h"
 //#include "watchdog_ec.h"
-#include "powermanagement_ec.h"
+//#include "powermanagement_ec.h"
+#include "mouse_ec.h"
 
 //DigitalOut myled(p26);
 //PwmOut builtinLED(LED1);
@@ -108,7 +109,11 @@
         // Watchdog Extra Credit
 //        run_watchdogEC();
 
-        run_powermanagementEC();
+        // Power Management Extra Credit
+//        run_powermanagementEC();
+        
+        // USB Mouse Extra Credit
+        run_mouseEC();
         
     }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mouse_EC.h	Wed Jan 22 13:08:48 2020 +0000
@@ -0,0 +1,98 @@
+#include "mbed.h"
+#include "USBMouse.h"
+//USB mouse demo using a 5-way Navigation Switch (Digital Joystick)
+//Needs USB connector breakout with D+, D-, and Gnd to mbed LLP1768
+USBMouse mouse;
+
+class Nav_Switch
+{
+public:
+    Nav_Switch(PinName up,PinName down,PinName left,PinName right,PinName fire);
+    int read();
+//boolean functions to test each switch
+    bool up();
+    bool down();
+    bool left();
+    bool right();
+    bool fire();
+//automatic read on RHS
+    operator int ();
+//index to any switch array style
+    bool operator[](int index) {
+        return _pins[index];
+    };
+private:
+    BusIn _pins;
+
+};
+Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire):
+    _pins(up, down, left, right, fire)
+{
+    _pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise
+    wait(0.001); //delays just a bit for pullups to pull inputs high
+}
+inline bool Nav_Switch::up()
+{
+    return !(_pins[0]);
+}
+inline bool Nav_Switch::down()
+{
+    return !(_pins[1]);
+}
+inline bool Nav_Switch::left()
+{
+    return !(_pins[2]);
+}
+inline bool Nav_Switch::right()
+{
+    return !(_pins[3]);
+}
+inline bool Nav_Switch::fire()
+{
+    return !(_pins[4]);
+}
+inline int Nav_Switch::read()
+{
+    return _pins.read();
+}
+inline Nav_Switch::operator int ()
+{
+    return _pins.read();
+}
+
+Nav_Switch myNav( p9, p6, p7, p5, p8); //pin order on Sparkfun Nav SW breakout
+
+AnalogIn pot(p20);
+int potPrev = 0;
+
+int run_mouseEC()
+{
+    int16_t x = 0;
+    int16_t y = 0;
+    uint8_t left_click = 0;
+    int relPot = 0;
+    while (1) {
+        //check relative mouse movement
+        x=0;
+        y=0;
+        if (myNav.up()) x=-1;
+        if (myNav.down()) x=1;
+        if (myNav.left()) y=1;
+        if (myNav.right()) y=-1;
+        //check mouse left button click
+        if (myNav.fire()) left_click = 1;
+        if (!myNav.fire())left_click = 0;
+        
+        if (potPrev < pot) {
+            relPot = 1;
+        } else if (potPrev > pot) {
+            relPot = -1;
+        } else {
+            relPot = 0;
+        }
+        potPrev = pot;
+        //send a mouse data packet to PC
+        mouse.update(x, y, left_click, relPot);
+        wait(0.001);
+    }
+}
\ No newline at end of file

--- a/powermanagement_ec.h	Tue Jan 21 21:06:20 2020 +0000
+++ b/powermanagement_ec.h	Wed Jan 22 13:08:48 2020 +0000
@@ -13,6 +13,12 @@
  
 DigitalOut myled(p26);
 DigitalIn pb(p22);
+
+Ticker blinker;
+
+void blink() {
+    myled = !pb;
+}
  
 int run_powermanagementEC() {
     int result;
@@ -41,9 +47,8 @@
 // Sleep halts and waits for an interrupt instead of executing instructions
 // power is saved by not constantly fetching and decoding instructions
 // Exact power level reduction depends on the amount of time spent in Sleep mode
-//    blinker.attach(&blink, 0.0625);
+    blinker.attach(&blink, 0.0625);
     while (1) {
-//        Sleep();
-        myled = !pb;
+        Sleep();
     }
 }
\ No newline at end of file