ECE 4180 / Mbed 2 deprecated 4180_L1_P4

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Dependencies:   mbed

main.cpp@1:52b50dc12ace, 2021-02-01 (annotated)

Committer:
glanier9
Date:
Mon Feb 01 20:03:16 2021 +0000
Revision:
1:52b50dc12ace
Parent:
0:35a8a081dbc3 
Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
glanier9 1:52b50dc12ace 1 // 4180 Lab 1, Part 4
glanier9 1:52b50dc12ace 2 // Gregory Lanier
glanier9 1:52b50dc12ace 3 // https://os.mbed.com/users/4180_1/notebook/using-a-navigation-switch-digital-joystick/
glanier9 1:52b50dc12ace 4
4180_1 0:35a8a081dbc3 5 #include "mbed.h"
4180_1 0:35a8a081dbc3 6
4180_1 0:35a8a081dbc3 7 BusOut mbedleds(LED1,LED2,LED3,LED4);
4180_1 0:35a8a081dbc3 8 //BusOut/In is faster than multiple DigitalOut/Ins
4180_1 0:35a8a081dbc3 9
4180_1 0:35a8a081dbc3 10 class Nav_Switch
4180_1 0:35a8a081dbc3 11 {
4180_1 0:35a8a081dbc3 12 public:
4180_1 0:35a8a081dbc3 13 Nav_Switch(PinName up,PinName down,PinName left,PinName right,PinName fire);
4180_1 0:35a8a081dbc3 14 int read();
4180_1 0:35a8a081dbc3 15 //boolean functions to test each switch
4180_1 0:35a8a081dbc3 16 bool up();
4180_1 0:35a8a081dbc3 17 bool down();
4180_1 0:35a8a081dbc3 18 bool left();
4180_1 0:35a8a081dbc3 19 bool right();
4180_1 0:35a8a081dbc3 20 bool fire();
4180_1 0:35a8a081dbc3 21 //automatic read on RHS
4180_1 0:35a8a081dbc3 22 operator int ();
4180_1 0:35a8a081dbc3 23 //index to any switch array style
4180_1 0:35a8a081dbc3 24 bool operator[](int index) {
4180_1 0:35a8a081dbc3 25 return _pins[index];
4180_1 0:35a8a081dbc3 26 };
4180_1 0:35a8a081dbc3 27 private:
4180_1 0:35a8a081dbc3 28 BusIn _pins;
4180_1 0:35a8a081dbc3 29
4180_1 0:35a8a081dbc3 30 };
4180_1 0:35a8a081dbc3 31 Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire):
4180_1 0:35a8a081dbc3 32 _pins(up, down, left, right, fire)
4180_1 0:35a8a081dbc3 33 {
4180_1 0:35a8a081dbc3 34 _pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise
4180_1 0:35a8a081dbc3 35 wait(0.001); //delays just a bit for pullups to pull inputs high
4180_1 0:35a8a081dbc3 36 }
4180_1 0:35a8a081dbc3 37 inline bool Nav_Switch::up()
4180_1 0:35a8a081dbc3 38 {
4180_1 0:35a8a081dbc3 39 return !(_pins[0]);
4180_1 0:35a8a081dbc3 40 }
4180_1 0:35a8a081dbc3 41 inline bool Nav_Switch::down()
4180_1 0:35a8a081dbc3 42 {
4180_1 0:35a8a081dbc3 43 return !(_pins[1]);
4180_1 0:35a8a081dbc3 44 }
4180_1 0:35a8a081dbc3 45 inline bool Nav_Switch::left()
4180_1 0:35a8a081dbc3 46 {
4180_1 0:35a8a081dbc3 47 return !(_pins[2]);
4180_1 0:35a8a081dbc3 48 }
4180_1 0:35a8a081dbc3 49 inline bool Nav_Switch::right()
4180_1 0:35a8a081dbc3 50 {
4180_1 0:35a8a081dbc3 51 return !(_pins[3]);
4180_1 0:35a8a081dbc3 52 }
4180_1 0:35a8a081dbc3 53 inline bool Nav_Switch::fire()
4180_1 0:35a8a081dbc3 54 {
4180_1 0:35a8a081dbc3 55 return !(_pins[4]);
4180_1 0:35a8a081dbc3 56 }
4180_1 0:35a8a081dbc3 57 inline int Nav_Switch::read()
4180_1 0:35a8a081dbc3 58 {
4180_1 0:35a8a081dbc3 59 return _pins.read();
4180_1 0:35a8a081dbc3 60 }
4180_1 0:35a8a081dbc3 61 inline Nav_Switch::operator int ()
4180_1 0:35a8a081dbc3 62 {
4180_1 0:35a8a081dbc3 63 return _pins.read();
4180_1 0:35a8a081dbc3 64 }
4180_1 0:35a8a081dbc3 65 Nav_Switch myNav( p9, p6, p7, p5, p8); //pin order on Sparkfun breakout
4180_1 0:35a8a081dbc3 66
4180_1 0:35a8a081dbc3 67 int main()
4180_1 0:35a8a081dbc3 68 {
4180_1 0:35a8a081dbc3 69 while(1) {
4180_1 0:35a8a081dbc3 70 //with pullups a button hit is a "0" - "~" inverts data to leds
4180_1 0:35a8a081dbc3 71 mbedleds = ~(myNav & 0x0F); //update leds with nav switch direction inputs
4180_1 0:35a8a081dbc3 72 if(myNav.fire()) mbedleds = 0x0F; //special all leds on case for fire (center button)
4180_1 0:35a8a081dbc3 73 //or use - if(myNav[4]==0) mbedleds = 0x0F; //can index a switch bit like this
4180_1 0:35a8a081dbc3 74 wait(0.02);
4180_1 0:35a8a081dbc3 75 }
4180_1 0:35a8a081dbc3 76 }