APCI-3xxx
Functions of the board
35
8.2.4
Input modes of the analog inputs
16 differential channels are available on the board for the analog inputs. The
acquisition can be realized in the following modes
1) Simple mode
2) Scan mode
1)
Simple mode
The software initializes and starts the A/D conversion and after this step it
reads the digital value of one or more channels. For more detailed
information please refer to the software function “Analog Inputs” in the
ADDIPACK manual.
2)
Scan modes
There are 6 different scan modes:
a)
Single software scan
b)
Single hardware triggered scan
c)
Continuous software scan
d)
Continuous software scan with timer delay
e)
Continuous hardware triggered scan
f)
Continuous hardware triggered scan with timer delay
The following section will describe the above mentioned scan modes more
detailed:
a)
Single software scan
The user interrupt routine is called after the last IRQ (=ADDI-DATA
driver).
Note: In the scan mode no DMA functionality is used!
