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Dependencies:   mbed CANBuffer Watchdog MODSERIAL mbed-rtos xbeeRelay IAP

Fork of SystemManagement by Martin Deng

PollSwitch/PollSwitch.cpp@29:f148490b5f65, 2014-11-08 (annotated)

Committer:
pspatel321
Date:
Sat Nov 08 17:15:14 2014 +0000
Revision:
29:f148490b5f65
Parent:
17:c9ce210f6654 
Parth edits branch

Who changed what in which revision?

UserRevisionLine numberNew contents of line
martydd3 7:5f6e31faa08e 1 #include "PollSwitch.h"
martydd3 7:5f6e31faa08e 2
pspatel321 17:c9ce210f6654 3 LPCDigitalIn sw[]={ LPCDigitalIn(p1_0, PullDown),
pspatel321 17:c9ce210f6654 4 LPCDigitalIn(p1_1, PullDown),
pspatel321 17:c9ce210f6654 5 LPCDigitalIn(p1_4, PullDown),
pspatel321 17:c9ce210f6654 6 LPCDigitalIn(p1_8, PullDown),
pspatel321 17:c9ce210f6654 7 LPCDigitalIn(p1_9, PullDown),
pspatel321 17:c9ce210f6654 8 LPCDigitalIn(p1_10, PullDown),
pspatel321 17:c9ce210f6654 9 LPCDigitalIn(p1_14, PullDown),
pspatel321 17:c9ce210f6654 10 LPCDigitalIn(p1_15, PullDown),
pspatel321 17:c9ce210f6654 11 LPCDigitalIn(p1_16, PullDown),
pspatel321 17:c9ce210f6654 12 LPCDigitalIn(p1_17, PullDown),
pspatel321 17:c9ce210f6654 13 LPCDigitalIn(p1_27, PullDown),
pspatel321 17:c9ce210f6654 14 LPCDigitalIn(p1_28, PullDown)
pspatel321 17:c9ce210f6654 15 };
martydd3 7:5f6e31faa08e 16
pspatel321 17:c9ce210f6654 17 PollSwitch::PollSwitch(){
pspatel321 17:c9ce210f6654 18 switchState = 0;
martydd3 7:5f6e31faa08e 19 }
martydd3 7:5f6e31faa08e 20
pspatel321 17:c9ce210f6654 21 uint16_t PollSwitch::poll(){
martydd3 7:5f6e31faa08e 22 int i = 0;
martydd3 7:5f6e31faa08e 23
martydd3 7:5f6e31faa08e 24 // if a low signal is detected, previous switch is broken
pspatel321 17:c9ce210f6654 25 for(i = 1; i < sizeof(sw)/sizeof(sw[0]); i++){
pspatel321 17:c9ce210f6654 26 if(!sw[i].read())
martydd3 7:5f6e31faa08e 27 break;
martydd3 7:5f6e31faa08e 28 }
martydd3 7:5f6e31faa08e 29
martydd3 7:5f6e31faa08e 30 // bit on: switch may be broken
pspatel321 29:f148490b5f65 31 if (i < sizeof(sw)/sizeof(sw[0])) {
pspatel321 29:f148490b5f65 32 switchState = (1 << i);
pspatel321 29:f148490b5f65 33 return (1 << i);
pspatel321 29:f148490b5f65 34 } else return 0;
martydd3 7:5f6e31faa08e 35 }