1 | int main(void)
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2 | {
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3 |
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4 |
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5 | CHIP_Init();
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6 | CMU_OscillatorEnable(cmuOsc_HFRCO,1,0);
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7 | CMU_ClockEnable(cmuClock_HFPER, true);
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8 | CMU_ClockEnable(cmuClock_GPIO,1);
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9 | CMU_ClockEnable(cmuClock_I2C0,1);
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10 | CMU_ClockEnable(cmuClock_RTC, true);
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11 |
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12 | CMU_OscillatorEnable(cmuOsc_LFRCO, true, 0);
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13 | CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_LFRCO);
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14 | CMU_ClockEnable(cmuClock_LFA,true);
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15 | CMU_ClockEnable(cmuClock_CORELE ,true);
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16 |
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17 | ///////I2C////////////////////////////
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18 | GPIO_PinModeSet(gpioPortD, 7, gpioModeWiredAndPullUpFilter, 1);
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19 | GPIO_PinModeSet(gpioPortD, 6, gpioModeWiredAndPullUpFilter, 1);
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20 | I2C0->ROUTE = I2C_ROUTE_SDAPEN | I2C_ROUTE_SCLPEN | (1 << _I2C_ROUTE_LOCATION_SHIFT);
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21 | GPIO_PinModeSet(gpioPortC, 8, gpioModePushPull , 1);
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22 | GPIO_PinOutClear(gpioPortC,8);
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23 | I2C_Init(I2C0,&I2INIT);
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24 | ////////////////RTC config//////////////
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25 | RTC_Init(&RTCINI);
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26 | RTC_CompareSet(0, 30000);
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27 | RTC_IntEnable(RTC_IFC_COMP0);
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28 | RTC_Enable(true);
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29 | GPIO_PinModeSet(5,5,gpioModePushPull,0);//test led
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30 | GPIO_PinModeSet(0,2,gpioModeInput ,0);//RDY
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31 | while (1)
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32 | {
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33 | NVIC_EnableIRQ(RTC_IRQn);
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34 | powerup();// der Sensor wird aktiviert
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35 | while(GPIO_PinInGet(0,2)==1){}// wait till data ready to read
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36 | measureTemp();//Misst die Temperatur
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37 |
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38 | if(Temp>28)
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39 | {
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40 | GPIO_PinOutSet(5,5);
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41 | }else{
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42 | GPIO_PinOutClear(5,5);
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43 | }
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44 | powerdown();// der Sensor geht in Stand By
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45 | EMU_EnterEM2(1);
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46 | }
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47 | }
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48 | ///RTC Interrupt
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49 | void RTC_IRQHandler(void) {
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50 | RTC_IntClear(RTC_IFC_COMP0);
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51 | RTC_CompareSet(0, 30000);
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52 | RTC_IntEnable(RTC_IFC_COMP0);
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53 |
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54 | }
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