Penn Electric Racing / Mbed 2 deprecated SystemManagement

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Dependencies:   mbed CANBuffer Watchdog MODSERIAL mbed-rtos xbeeRelay IAP

Fork of SystemManagement by Martin Deng

PollSwitch/PollSwitch.cpp

Committer:
pspatel321
Date:
2014-10-25
Revision:
17:c9ce210f6654
Parent:
16:a72ffe7d879d
Child:
29:f148490b5f65

File content as of revision 17:c9ce210f6654:

#include "PollSwitch.h"

LPCDigitalIn sw[]={     LPCDigitalIn(p1_0, PullDown),
                        LPCDigitalIn(p1_1, PullDown), 
                        LPCDigitalIn(p1_4, PullDown),
                        LPCDigitalIn(p1_8, PullDown),
                        LPCDigitalIn(p1_9, PullDown),
                        LPCDigitalIn(p1_10, PullDown),
                        LPCDigitalIn(p1_14, PullDown),
                        LPCDigitalIn(p1_15, PullDown),
                        LPCDigitalIn(p1_16, PullDown),
                        LPCDigitalIn(p1_17, PullDown),
                        LPCDigitalIn(p1_27, PullDown),
                        LPCDigitalIn(p1_28, PullDown)
                    };

PollSwitch::PollSwitch(){
    switchState = 0;
}

uint16_t PollSwitch::poll(){
    int i = 0;
    
    // if a low signal is detected, previous switch is broken
    for(i = 1; i < sizeof(sw)/sizeof(sw[0]); i++){
        if(!sw[i].read())
            break;
    }
    
    // bit on: switch may be broken
    switchState = (1 << i);
    return (1 << i);
}