nidaqmx.h

NI DAQ card 6221(37pins)的windows驱动程序,实现对数据采集卡的io控制,在工程领域很有用.

#define DAQmx_AO_DAC_Rng_Low                                             0x182D // Specifies the lower limit of the output range of the device. This value is in the native units of the device. On E Series devices, for example, the native units is volts.
#define DAQmx_AO_DAC_Ref_ConnToGnd                                       0x0130 // Specifies whether to ground the internal DAC reference. Grounding the internal DAC reference has the effect of grounding all analog output channels and stopping waveform generation across all analog output channels regardless of whether the channels belong to the current task. You can ground the internal DAC reference only when Source is DAQmx_Val_Internal and Allow Connecting DAC Reference to Ground at Runtime is...
#define DAQmx_AO_DAC_Ref_AllowConnToGnd                                  0x1830 // Specifies whether to allow grounding the internal DAC reference at run time. You must set this property to TRUE and set Source to DAQmx_Val_Internal before you can set Connect DAC Reference to Ground to TRUE.
#define DAQmx_AO_DAC_Ref_Src                                             0x0132 // Specifies the source of the DAC reference voltage. The value of this voltage source determines the full-scale value of the DAC.
#define DAQmx_AO_DAC_Ref_ExtSrc                                          0x2252 // Specifies the source of the DAC reference voltage if Source is DAQmx_Val_External. The valid sources for this signal vary by device.
#define DAQmx_AO_DAC_Ref_Val                                             0x1832 // Specifies in volts the value of the DAC reference voltage. This voltage determines the full-scale range of the DAC. Smaller reference voltages result in smaller ranges, but increased resolution.
#define DAQmx_AO_DAC_Offset_Src                                          0x2253 // Specifies the source of the DAC offset voltage. The value of this voltage source determines the full-scale value of the DAC.
#define DAQmx_AO_DAC_Offset_ExtSrc                                       0x2254 // Specifies the source of the DAC offset voltage if Source is DAQmx_Val_External. The valid sources for this signal vary by device.
#define DAQmx_AO_DAC_Offset_Val                                          0x2255 // Specifies in volts the value of the DAC offset voltage. To achieve best accuracy, the DAC offset value should be hand calibrated.
#define DAQmx_AO_ReglitchEnable                                          0x0133 // Specifies whether to enable reglitching.  The output of a DAC normally glitches whenever the DAC is updated with a new value. The amount of glitching differs from code to code and is generally largest at major code transitions.  Reglitching generates uniform glitch energy at each code transition and provides for more uniform glitches.  Uniform glitch energy makes it easier to filter out the noise introduced from g...
#define DAQmx_AO_Gain                                                    0x0118 // Specifies in decibels the gain factor to apply to the channel.
#define DAQmx_AO_UseOnlyOnBrdMem                                         0x183A // Specifies whether to write samples directly to the onboard memory of the device, bypassing the memory buffer. Generally, you cannot update onboard memory after you start the task. Onboard memory includes data FIFOs.
#define DAQmx_AO_DataXferMech                                            0x0134 // Specifies the data transfer mode for the device.
#define DAQmx_AO_DataXferReqCond                                         0x183C // Specifies under what condition to transfer data from the buffer to the onboard memory of the device.
#define DAQmx_AO_MemMapEnable                                            0x188F // Specifies if NI-DAQmx maps hardware registers to the memory space of the customer process, if possible. Mapping to the memory space of the customer process increases performance. However, memory mapping can adversely affect the operation of the device and possibly result in a system crash if software in the process unintentionally accesses the mapped registers.
#define DAQmx_AO_DevScalingCoeff                                         0x1931 // Indicates the coefficients of a linear equation that NI-DAQmx uses to scale values from a voltage to the native format of the device.  Each element of the array corresponds to a term of the equation. For example, if index two of the array is 4, the third term of the equation is 4x^2.  Scaling coefficients do not account for any custom scales that may be applied to the channel.
#define DAQmx_AO_EnhancedImageRejectionEnable                            0x2241 // Specifies whether to enable the DAC interpolation filter. Disable the interpolation filter to improve DAC signal-to-noise ratio at the expense of degraded image rejection.
#define DAQmx_DI_InvertLines                                             0x0793 // Specifies whether to invert the lines in the channel. If you set this property to TRUE, the lines are at high logic when off and at low logic when on.
#define DAQmx_DI_NumLines                                                0x2178 // Indicates the number of digital lines in the channel.
#define DAQmx_DI_DigFltr_Enable                                          0x21D6 // Specifies whether to enable the digital filter for the line(s) or port(s). You can enable the filter on a line-by-line basis. You do not have to enable the filter for all lines in a channel.
#define DAQmx_DI_DigFltr_MinPulseWidth                                   0x21D7 // Specifies in seconds the minimum pulse width the filter recognizes as a valid high or low state transition.
#define DAQmx_DI_Tristate                                                0x1890 // Specifies whether to tristate the lines in the channel. If you set this property to TRUE, NI-DAQmx tristates the lines in the channel. If you set this property to FALSE, NI-DAQmx does not modify the configuration of the lines even if the lines were previously tristated. Set this property to FALSE to read lines in other tasks or to read output-only lines.
#define DAQmx_DI_LogicFamily                                             0x296D // Specifies the logic family to use for acquisition. A logic family corresponds to voltage thresholds that are compatible with a group of voltage standards. Refer to device documentation for information on the logic high and logic low voltages for these logic families.
#define DAQmx_DI_DataXferMech                                            0x2263 // Specifies the data transfer mode for the device.
#define DAQmx_DI_DataXferReqCond                                         0x2264 // Specifies under what condition to transfer data from the onboard memory of the device to the buffer.
#define DAQmx_DI_MemMapEnable                                            0x296A // Specifies if NI-DAQmx maps hardware registers to the memory space of the customer process, if possible. Mapping to the memory space of the customer process increases performance. However, memory mapping can adversely affect the operation of the device and possibly result in a system crash if software in the process unintentionally accesses the mapped registers.
#define DAQmx_DI_AcquireOn                                               0x2966 // Specifies on which edge of the sample clock to acquire samples.
#define DAQmx_DO_OutputDriveType                                         0x1137 // Specifies the drive type for digital output channels.
#define DAQmx_DO_InvertLines                                             0x1133 // Specifies whether to invert the lines in the channel. If you set this property to TRUE, the lines are at high logic when off and at low logic when on.
#define DAQmx_DO_NumLines                                                0x2179 // Indicates the number of digital lines in the channel.
#define DAQmx_DO_Tristate                                                0x18F3 // Specifies whether to stop driving the channel and set it to a high-impedance state. You must commit the task for this setting to take effect.
#define DAQmx_DO_LineStates_StartState                                   0x2972 // Specifies the state of the lines in a digital output task when the task starts.
#define DAQmx_DO_LineStates_PausedState                                  0x2967 // Specifies the state of the lines in a digital output task when the task pauses.
#define DAQmx_DO_LineStates_DoneState                                    0x2968 // Specifies the state of the lines in a digital output task when the task completes execution.
#define DAQmx_DO_LogicFamily                                             0x296E // Specifies the logic family to use for generation. A logic family corresponds to voltage thresholds that are compatible with a group of voltage standards. Refer to device documentation for information on the logic high and logic low voltages for these logic families.
#define DAQmx_DO_UseOnlyOnBrdMem                                         0x2265 // Specifies whether to write samples directly to the onboard memory of the device, bypassing the memory buffer. Generally, you cannot update onboard memory after you start the task. Onboard memory includes data FIFOs.
#define DAQmx_DO_DataXferMech                                            0x2266 // Specifies the data transfer mode for the device.
#define DAQmx_DO_DataXferReqCond                                         0x2267 // Specifies under what condition to transfer data from the buffer to the onboard memory of the device.
#define DAQmx_DO_MemMapEnable                                            0x296B // Specifies if NI-DAQmx maps hardware registers to the memory space of the customer process, if possible. Mapping to the memory space of the customer process increases performance. However, memory mapping can adversely affect the operation of the device and possibly result in a system crash if software in the process unintentionally accesses the mapped registers.
#define DAQmx_DO_GenerateOn                                              0x2969 // Specifies on which edge of the sample clock to generate samples.
#define DAQmx_CI_Max                                                     0x189C // Specifies the maximum value you expect to measure. This value is in the units you specify with a units property. When you query this property, it returns the coerced maximum value that the hardware can measure with the current settings.
#define DAQmx_CI_Min                                                     0x189D // Specifies the minimum value you expect to measure. This value is in the units you specify with a units property. When you query this property, it returns the coerced minimum value that the hardware can measure with the current settings.
#define DAQmx_CI_CustomScaleName                                         0x189E // Specifies the name of a custom scale for the channel.
#define DAQmx_CI_MeasType                                                0x18A0 // Indicates the measurement to take with the channel.
#define DAQmx_CI_Freq_Units                                              0x18A1 // Specifies the units to use to return frequency measurements.
#define DAQmx_CI_Freq_Term                                               0x18A2 // Specifies the input terminal of the signal to measure.
#define DAQmx_CI_Freq_StartingEdge                                       0x0799 // Specifies between which edges to measure the frequency of the signal.
#define DAQmx_CI_Freq_MeasMeth                                           0x0144 // Specifies the method to use to measure the frequency of the signal.
#define DAQmx_CI_Freq_MeasTime                                           0x0145 // Specifies in seconds the length of time to measure the frequency of the signal if Method is DAQmx_Val_HighFreq2Ctr. Measurement accuracy increases with increased measurement time and with increased signal frequency. If you measure a high-frequency signal for too long, however, the count register could roll over, which results in an incorrect measurement.
#define DAQmx_CI_Freq_Div                                                0x0147 // Specifies the value by which to divide the input signal if  Method is DAQmx_Val_LargeRng2Ctr. The larger the divisor, the more accurate the measurement. However, too large a value could cause the count register to roll over, which results in an incorrect measurement.
#define DAQmx_CI_Freq_DigFltr_Enable                                     0x21E7 // Specifies whether to apply the pulse width filter to the signal.
#define DAQmx_CI_Freq_DigFltr_MinPulseWidth                              0x21E8 // Specifies in seconds the minimum pulse width the filter recognizes.
#define DAQmx_CI_Freq_DigFltr_TimebaseSrc                                0x21E9 // Specifies the input terminal of the signal to use as the timebase of the pulse width filter.
#define DAQmx_CI_Freq_DigFltr_TimebaseRate                               0x21EA // Specifies in hertz the rate of the pulse width filter timebase. NI-DAQmx uses this value to compute settings for the filter.
#define DAQmx_CI_Freq_DigSync_Enable                                     0x21EB // Specifies whether to synchronize recognition of transitions in the signal to the internal timebase of the device.
#define DAQmx_CI_Period_Units                                            0x18A3 // Specifies the unit to use to return period measurements.
#define DAQmx_CI_Period_Term                                             0x18A4 // Specifies the input terminal of the signal to measure.
#define DAQmx_CI_Period_StartingEdge                                     0x0852 // Specifies between which edges to measure the period of the signal.
#define DAQmx_CI_Period_MeasMeth                                         0x192C // Specifies the method to use to measure the period of the signal.
#define DAQmx_CI_Period_MeasTime                                         0x192D // Specifies in seconds the length of time to measure the period of the signal if Method is DAQmx_Val_HighFreq2Ctr. Measurement accuracy increases with increased measurement time and with increased signal frequency. If you measure a high-frequency signal for too long, however, the count register could roll over, which results in an incorrect measurement.
#define DAQmx_CI_Period_Div                                              0x192E // Specifies the value by which to divide the input signal if Method is DAQmx_Val_LargeRng2Ctr. The larger the divisor, the more accurate the measurement. However, too large a value could cause the count register to roll over, which results in an incorrect measurement.
#define DAQmx_CI_Period_DigFltr_Enable                                   0x21EC // Specifies whether to apply the pulse width filter to the signal.
#define DAQmx_CI_Period_DigFltr_MinPulseWidth                            0x21ED // Specifies in seconds the minimum pulse width the filter recognizes.
#define DAQmx_CI_Period_DigFltr_TimebaseSrc                              0x21EE // Specifies the input terminal of the signal to use as the timebase of the pulse width filter.
#define DAQmx_CI_Period_DigFltr_TimebaseRate                             0x21EF // Specifies in hertz the rate of the pulse width filter timebase. NI-DAQmx uses this value to compute settings for the filter.
#define DAQmx_CI_Period_DigSync_Enable                                   0x21F0 // Specifies whether to synchronize recognition of transitions in the signal to the internal timebase of the device.
#define DAQmx_CI_CountEdges_Term                                         0x18C7 // Specifies the input terminal of the signal to measure.
#define DAQmx_CI_CountEdges_Dir                                          0x0696 // Specifies whether to increment or decrement the counter on each edge.
#define DAQmx_CI_CountEdges_DirTerm                                      0x21E1 // Specifies the source terminal of the digital signal that controls the count direction if Direction is DAQmx_Val_ExtControlled.
#define DAQmx_CI_CountEdges_CountDir_DigFltr_Enable                      0x21F1 // Specifies whether to apply the pulse width filter to the signal.
#define DAQmx_CI_CountEdges_CountDir_DigFltr_MinPulseWidth               0x21F2 // Specifies in seconds the minimum pulse width the filter recognizes.
#define DAQmx_CI_CountEdges_CountDir_DigFltr_TimebaseSrc                 0x21F3 // Specifies the input terminal of the signal to use as the timebase of the pulse width filter.
#define DAQmx_CI_CountEdges_CountDir_DigFltr_TimebaseRate                0x21F4 // Specifies in hertz the rate of the pulse width filter timebase. NI-DAQmx uses this value to compute settings for the filter.
#define DAQmx_CI_CountEdges_CountDir_DigSync_Enable                      0x21F5 // Specifies whether to synchronize recognition of transitions in the signal to the internal timebase of the device.
#define DAQmx_CI_CountEdges_InitialCnt                                   0x0698 // Specifies the starting value from which to count.
#define DAQmx_CI_CountEdges_ActiveEdge                                   0x0697 // Specifies on which edges to increment or decrement the counter.
#define DAQmx_CI_CountEdges_DigFltr_Enable                               0x21F6 // Specifies whether to apply the pulse width filter to the signal.
#define DAQmx_CI_CountEdges_DigFltr_MinPulseWidth                        0x21F7 // Specifies in seconds the minimum pulse width the filter recognizes.
#define DAQmx_CI_CountEdges_DigFltr_TimebaseSrc                          0x21F8 // Specifies the input terminal of the signal to use as the timebase of the pulse width filter.
#define DAQmx_CI_CountEdges_DigFltr_TimebaseRate                         0x21F9 // Specifies in hertz the rate of the pulse width filter timebase. NI-DAQmx uses this value to compute settings for the filter.
#define DAQmx_CI_CountEdges_DigSync_Enable                               0x21FA // Specifies whether to synchronize recognition of transitions in the signal to the internal timebase of the device.
#define DAQmx_CI_AngEncoder_Units                                        0x18A6 // Specifies the units to use to return angular position measurements from the channel.