LabJack U3 User Manual
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///eAIN/Take a single-ended measurement from AIN3.(Handle, ChannelP, ChannelN, *Voltage, Range, Resolution,served1, Reserved2)/eDAC (Handle, Channel, Voltage, Binary, Reserved1, Reserved2)e, 0, 3.1, 0, 0, 0);DO(lngHandle, 3, 1);1 output timer and 1 input timer, and enable Counter0.h the desired values, then make the call./ TimerClockBaseIndex, TimerClockDivisor, *aTimerModes,nd re er1), read and reset Counter0, and updatelue ( er (Timer0).he ar ues, then make the call.reset Timer1n/ Reserved2);oudest. The frequency of the signal sent to the buzzer isery n iterations of the main U3 firmware loop. The followingr:// Settling, Binary, Re//eAIN(lngHandle, 3, 31, &dblVoltage, 0, 0, 0, 0, 0, 0);printf("AIN3 value = %.3f\n",dblVoltage);//Set DAC0 to 3.1 volts.///eDAC(lngHandl//Read state of FIO2.//eDI (Handle, Channel, *State)//eDI(lngHandle, 2, &lngState);printf("FIO2 state = %.0f\n",lngState);//Set FIO3 to output-high.//eDO (Handle, Channel, State)//e//Enable and configureFill the arrays wit//alngEnableTimers = {1,1}; //Enable Timer0-Timer1alngTimerModes = {LJ_tmPWM8,LJ_tmRISINGEDGES32}; //Set timer modesblTimerValues = {16384,0}; //Set PWM8 duty-cycle to 75%.adalngEnableCounters = {1,0}; //Enable Counter0///eTCConfig (Handle, *aEnableTimers, *aEnableCounters, TCPinOffset,//// *aTimerValues, Reserved1, Reserved2);//eTCConfig(lngHandle, alngEnableTimers, alngEnableCounters, 0, LJ_tc48MHZ, 0,alngTimerModes, adblTimerValues, 0, 0);//Read a set the input timer (Tim//the va duty-cycle) of the output tim//Fill t rays with the desired valalngReadTimers = {0,1}; //Read Timer1alngUpdateResetTimers = {1,1}; //Update Timer0 andalngReadCounters = {1,0}; //Read Counter0ngResetCou ters = {1,0}; //Reset Counter0aladblTimerValues = {32768,0}; //Change Timer0 duty-cycle to 50%////eTCValues (Handle, *aReadTimers, *aUpdateResetTimers, *aReadCounters,// *aResetCounters, *aTimerValues, *aCounterValues, Reserved1,///eTCValues(lngHandle, alngReadTimers, alngUpdateResetTimers, alngReadCounters,alngResetCounters, adblTimerValues, adblCounterValues, 0, 0);printf("Timer1 value = %.0f\n",adblTimerValues[1]);printf("Counter0 value = %.0f\n",adblCounterValues[0]);4.3.10 MiscellaneousThe U3 has a buzzer that can be used to make noise. The buzzer has a resonant frequency ofabout 4 kHz where it is the ldetermined by toggling the signal evIOType is used to control the buzze73 |
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