ADLINK Technology PCI-8136, Руководство пользователя

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50 Function Library
5.5 Analog I/O
@ Name
_8136_A_Initial – Initialize ADC/DAC functions
for PCI-8136
_8136_A_Write_Value - Output DAC in value
_8136_A_Write_Volt - Output DAC in voltage
_8136_A_Read_Value - Input from ADC in value
_8136_A_Read_Volt - Input from ADC in voltage
_8136_A_Output_Control - Start or stop DAC output
_8136_A_Set_Trigger - Set DAC output by trigger
_8136_A_Set_Trigger_Map - Select DAC trigger
source
_8136_A_Set_Preload_Volt - Set DAC trigger output
voltage
_8136_A_Set_Compare_Value - Set ADC compare value
_8136_A_Set_Compare_Volt - Set ADC compare
voltage
@ Description
_8136_A_Initial
:
This function enables serial ADC and DAC functions and sets the
transmission clock divider. Tthis function must be used before
using Analog IO.
_8136_A_Write_Value
This function generates a DC value from DAC channel. The DA
converter resolution is 16-bits. The mapping value for 0 volt is
0x0000 , +10 volt is 0x7fff and –10 volt is 0x8000. There are six
channels in one card. All channels are free to run individually.
_8136_A_Write_Volt
This function is for generating a DC value from DAC channel. The
DA converter resolution is 16-bits. A voltage value can be
assigned to this function directly. The voltage value range is–10.0
to +10.0. There are six channels in one card. All channels are free
to run individually.