ADLINK ACL-8112 Series - Manual (Page 86)

78
• C Language Library
7.17 _8112_AD_INT_Start
Description
The function will perform an A/D conversion N times with interrupt data
transfer using the pacer trigger. It takes place in the background which
will not stopped until the Nth conversion has completed or your program
executes the _8112_AD_INT_Stop() function to stop the process. After
executing this function, it is necessary to check the status of the
operation by issuing the 8112_AD_INT_Status() function. The function
can only be performed on an A/D channel with a fixed analog input
range.
Syntax
int _8112_INT_Start( int ad_ch_no, int ad_range,
int irq_ch_no, int count, int
*ad_buffer, unsigned int c1, unsigned int c2)
int _8112pg_INT_Start( int ad_ch_no, int ad_gain,
int irq_ch_no, int count, int
*ad_buffer, unsigned int c1, unsigned int c2)
Argument:
ad_ch_no: A/D channel number
ad_range: A/D analog input range, please refer
to section 7.9 for the possible
values.
irq_ch_no: IRQ channel number, used to stop DMA
count: the number of A/D conversion
ad_buffer: the start address of the memory buffer
to store the A/D data, the buffer
size must be larger than the number
of A/D conversions.
c1: the 16-bit timer frequency divider of
timer channel #1
c2: the 16-bit timer frequency divider of
timer channel #2