ADLINK Technology PCI-8136, Руководство пользователя

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46 Function Library
5.3 System Parameters
@ Name
_8136_A_Set_DAC_Clk - Set DAC clock divider
_8136_A_Set_ADC_Clk -Set ADC clock divider
_8136_S_Set_Timer_Value - Set Timer click count
_8136_P_Set_Enc_Filter - Set encoder filter clock
@ Description
_8136_A_Set_DAC_Clk
There are 6 serial type DA channels in PCI-8136. This function is
for settles the DAC transmission clock. Assign a clock divider
number to change the DAC transmission rate. The maximum
transmission clock is about 8.33 Mhz and the minimum is about
65Khz.
_8136_A_Set_ADC_Clk
There are 6 serial type AD channels in PCI-8136. This function
settles the ADC transmission clock. Assign a clock divider number
to change the DAC transmission rate. The maximum transmission
clock is about 8.33 Mhz and the minimum is about 65 Khz.
_8136_S_Set_Timer_Value
There is a 24-bits counter in PCI-8136. This function settles the
counter value and receives a fixed interrupt interval from this timer
when the counting is finished. The timer clock rate is 33.3 Mhz. If
user set the timer value to be 333000 then the interrupt interval will
be 10ms.
_8136_P_Set_Enc_Filter
The encoder counter base clock is 33.3 Mhz. This function settles
the encoder counter filter to fit the pulse rate from users. The max-
imum value for this filter is 127 and it means user's input pulse rate
is smaller than 260 Khz.