Kevin Abraham
/
4180Lab1-4
ECE 4180 Lab 1 Part 4
main.cpp@0:bf289fbff1dd, 2018-10-09 (annotated)
- Committer:
- abraha2d
- Date:
- Tue Oct 09 00:34:03 2018 +0000
- Revision:
- 0:bf289fbff1dd
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
abraha2d | 0:bf289fbff1dd | 1 | #include "mbed.h" |
abraha2d | 0:bf289fbff1dd | 2 | |
abraha2d | 0:bf289fbff1dd | 3 | BusOut mbedleds(LED1,LED2,LED3,LED4); |
abraha2d | 0:bf289fbff1dd | 4 | //BusOut/In is faster than multiple DigitalOut/Ins |
abraha2d | 0:bf289fbff1dd | 5 | |
abraha2d | 0:bf289fbff1dd | 6 | class Nav_Switch |
abraha2d | 0:bf289fbff1dd | 7 | { |
abraha2d | 0:bf289fbff1dd | 8 | public: |
abraha2d | 0:bf289fbff1dd | 9 | Nav_Switch(PinName up,PinName down,PinName left,PinName right,PinName fire); |
abraha2d | 0:bf289fbff1dd | 10 | int read(); |
abraha2d | 0:bf289fbff1dd | 11 | //boolean functions to test each switch |
abraha2d | 0:bf289fbff1dd | 12 | bool up(); |
abraha2d | 0:bf289fbff1dd | 13 | bool down(); |
abraha2d | 0:bf289fbff1dd | 14 | bool left(); |
abraha2d | 0:bf289fbff1dd | 15 | bool right(); |
abraha2d | 0:bf289fbff1dd | 16 | bool fire(); |
abraha2d | 0:bf289fbff1dd | 17 | //automatic read on RHS |
abraha2d | 0:bf289fbff1dd | 18 | operator int (); |
abraha2d | 0:bf289fbff1dd | 19 | //index to any switch array style |
abraha2d | 0:bf289fbff1dd | 20 | bool operator[](int index) { |
abraha2d | 0:bf289fbff1dd | 21 | return _pins[index]; |
abraha2d | 0:bf289fbff1dd | 22 | }; |
abraha2d | 0:bf289fbff1dd | 23 | private: |
abraha2d | 0:bf289fbff1dd | 24 | BusIn _pins; |
abraha2d | 0:bf289fbff1dd | 25 | |
abraha2d | 0:bf289fbff1dd | 26 | }; |
abraha2d | 0:bf289fbff1dd | 27 | Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire): |
abraha2d | 0:bf289fbff1dd | 28 | _pins(up, down, left, right, fire) |
abraha2d | 0:bf289fbff1dd | 29 | { |
abraha2d | 0:bf289fbff1dd | 30 | _pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise |
abraha2d | 0:bf289fbff1dd | 31 | wait(0.001); //delays just a bit for pullups to pull inputs high |
abraha2d | 0:bf289fbff1dd | 32 | } |
abraha2d | 0:bf289fbff1dd | 33 | inline bool Nav_Switch::up() |
abraha2d | 0:bf289fbff1dd | 34 | { |
abraha2d | 0:bf289fbff1dd | 35 | return !(_pins[0]); |
abraha2d | 0:bf289fbff1dd | 36 | } |
abraha2d | 0:bf289fbff1dd | 37 | inline bool Nav_Switch::down() |
abraha2d | 0:bf289fbff1dd | 38 | { |
abraha2d | 0:bf289fbff1dd | 39 | return !(_pins[1]); |
abraha2d | 0:bf289fbff1dd | 40 | } |
abraha2d | 0:bf289fbff1dd | 41 | inline bool Nav_Switch::left() |
abraha2d | 0:bf289fbff1dd | 42 | { |
abraha2d | 0:bf289fbff1dd | 43 | return !(_pins[2]); |
abraha2d | 0:bf289fbff1dd | 44 | } |
abraha2d | 0:bf289fbff1dd | 45 | inline bool Nav_Switch::right() |
abraha2d | 0:bf289fbff1dd | 46 | { |
abraha2d | 0:bf289fbff1dd | 47 | return !(_pins[3]); |
abraha2d | 0:bf289fbff1dd | 48 | } |
abraha2d | 0:bf289fbff1dd | 49 | inline bool Nav_Switch::fire() |
abraha2d | 0:bf289fbff1dd | 50 | { |
abraha2d | 0:bf289fbff1dd | 51 | return !(_pins[4]); |
abraha2d | 0:bf289fbff1dd | 52 | } |
abraha2d | 0:bf289fbff1dd | 53 | inline int Nav_Switch::read() |
abraha2d | 0:bf289fbff1dd | 54 | { |
abraha2d | 0:bf289fbff1dd | 55 | return _pins.read(); |
abraha2d | 0:bf289fbff1dd | 56 | } |
abraha2d | 0:bf289fbff1dd | 57 | inline Nav_Switch::operator int () |
abraha2d | 0:bf289fbff1dd | 58 | { |
abraha2d | 0:bf289fbff1dd | 59 | return _pins.read(); |
abraha2d | 0:bf289fbff1dd | 60 | } |
abraha2d | 0:bf289fbff1dd | 61 | |
abraha2d | 0:bf289fbff1dd | 62 | Nav_Switch myNav( p9, p6, p7, p5, p8); //pin order on Sparkfun breakout |
abraha2d | 0:bf289fbff1dd | 63 | |
abraha2d | 0:bf289fbff1dd | 64 | int main() |
abraha2d | 0:bf289fbff1dd | 65 | { |
abraha2d | 0:bf289fbff1dd | 66 | while(1) { |
abraha2d | 0:bf289fbff1dd | 67 | //with pullups a button hit is a "0" - "~" inverts data to leds |
abraha2d | 0:bf289fbff1dd | 68 | mbedleds = ~(myNav & 0x0F); //update leds with nav switch direction inputs |
abraha2d | 0:bf289fbff1dd | 69 | if(myNav.fire()) mbedleds = 0x0F; //special all leds on case for fire (center button) |
abraha2d | 0:bf289fbff1dd | 70 | //or use - if(myNav[4]==0) mbedleds = 0x0F; //can index a switch bit like this |
abraha2d | 0:bf289fbff1dd | 71 | wait(0.02); |
abraha2d | 0:bf289fbff1dd | 72 | } |
abraha2d | 0:bf289fbff1dd | 73 | } |