LabJack U3 User Manual

4.2.17 eAIN().......................................................................................................................58
4.2.18 eDAC() .....................................................................................................................58
4.2.19 eDI().........................................................................................................................59
4.2.20 eDO() .......................................................................................................................59
4.2.21 eTCConfig() .............................................................................................................60
4.2.22 eTCValues().............................................................................................................61
4.3 Example Pseudocode.......................................................................................................62
4.3.1 Open ...........................................................................................................................62
4.3.2 Configuration...............................................................................................................62
4.3.3 Analog Inputs..............................................................................................................63
4.3.4 Analog Outputs ...........................................................................................................65
4.3.5 Digital I/O ....................................................................................................................65
4.3.6 Timers & Counters ......................................................................................................66
4.3.7 Stream Mode ..............................................................................................................68
4.3.8 Raw Output/Input........................................................................................................72
4.3.9 Easy Functions ...........................................................................................................72
4.3.10 Miscellaneous ...........................................................................................................73
4.4 Errorcodes........................................................................................................................75
5. Low-Level Function Reference ..............................................................................................78
5.1 General Protocol...............................................................................................................78
5.2 Low-Level Functions.........................................................................................................80
5.2.1 BadChecksum............................................................................................................80
5.2.2 ConfigU3 ....................................................................................................................81
5.2.3 ConfigIO.....................................................................................................................84
5.2.4 ConfigTimerClock ......................................................................................................86
5.2.5 Feedback ...................................................................................................................87
5.2.6 ReadMem (ReadCal) .................................................................................................95
5.2.7 WriteMem (WriteCal) .................................................................................................96
5.2.8 EraseMem (EraseCal) ...............................................................................................97
5.2.9 Reset..........................................................................................................................98
5.2.10 StreamConfig ...........................................................................................................99
5.2.11 StreamStart............................................................................................................101
5.2.12 StreamData............................................................................................................102
5.2.13 StreamStop ............................................................................................................103
5.3.14 Watchdog...............................................................................................................104
5.3.15 SPI .........................................................................................................................106
5.3.16 AsynchConfig.........................................................................................................108
5.3.17 AsynchTX...............................................................................................................109
5.3.18 AsynchRX ..............................................................................................................110
5.3.19 I2C .........................................................................................................................111
5.3.20 SHT1X ...................................................................................................................113
5.3 Errorcodes......................................................................................................................114
A. Specifications.......................................................................................................................116
B. Enclosure & PCB Drawings .................................................................................................119
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LabJack U3 Specifications

General

Analog Outputs	2
Analog Output Resolution	10 bits
Digital I/O	20
Counter/Timers	2
Interface	USB
Operating Voltage	5 V
Manufacturer	LabJack Corporation
Analog Inputs	16
Analog Input Resolution	12-bit
Max Sample Rate	50 kHz