LabJack U3 User Manual
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//all 16 bits will be updated.ePut (lngHandle, LJ_ioPUT_ANALOG_ENABLE_PORT, 0, 65287, 16);ng channel of 2,/a value of b00111 (=d7), and 5 bits will be updated.will need to initialize the flexible I/O to a known pintion. One way to do this is with the following pseudocode:IMERS_ENABLED, 0, 0);NTER_PIN_OFFSET, 0, 0);Handle, LJ_ioPUT_CONFIG, LJ_chTIMER_CLOCK_BASE, LJ_tc24MHZ, 0);Handle, LJ_ioPUT_CONFIG, LJ_chTIMER_CLOCK_DIVISOR, 0, 0);Put (lngHandle, LJ_ioPUT_COUNTER_ENABLE, 0, 0, 0);0, 0, 16);is disables all timers and counters, sets the timer/counter pin offset to 0, sets the timer clockis using the following IOType created exactly for thisurpose, which does the same thing as the 8 function calls above:here are two IOTypes used to write or read general U3 configuration parameters:J_chPRODUCTIDwrite and read the local/Read the local ID.hLOCALID, &dblValue, 0);e IOTypes to retrieve a command/response analog input reading are://Configure FIO2-FIO4 as analog, and FIO5-FIO6 as digital, without//configuring any other bits. That means a starti/ePut (lngHandle, LJ_ioPUT_ANALOG_ENABLE_PORT, 2, 7, 5);Because of the pin configuration interaction between digital I/O, analog inputs, andtimers/counters, many software applicationsconfiguraePut (lngHandle, LJ_ioPUT_CONFIG, LJ_chNUMBER_TePut (lngHandle, LJ_ioPUT_CONFIG, LJ_chTIMER_COUePut (lngePut (lngeePut (lngHandle, LJ_ioPUT_COUNTER_ENABLE, 1, 0, 0);Put (lngHandle, LJ_ioPUT_DAC_ENABLE, 1, 0, 0);eePut (lngHandle, LJ_ioPUT_ANALOG_ENABLE_PORT,Thbase to 24 MHz (no divisor), sets the timer clock divisor to 0, disables DAC1, and sets allflexible I/O to digital. A simpler optionpePut (lngHandle, LJ_ioPIN_CONFIGURATION_RESET, 0, 0, 0);TLJ_ioPUT_CONFIGLJ_ioGET_CONFIGThe following constants are then used in the channel parameter of the config function call topecify what is being written or read:sLJ_chLOCALIDLJ_chHARDWARE_VERSIONLJ_chSERIAL_NUMBERLJ_chFIRMWARE_VERSIONLJ_chBOOTLOADER_VERSIONLLJ_chLED_STATEFollowing is example pseudocode to ID://Set the local ID to 4.ePut (lngHandle, LJ_ioPUT_CONFIG, LJ_chLOCALID, 4, 0);/eGet (lngHandle, LJ_ioGET_CONFIG, LJ_c4.3.3 Analog InputsTh63 |
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