A826_ads_float, 4 a826_ads_float – Omega Engineering OME-A826PG User Manual
Page 42
OME-A-826PG Software Manual [Win 95/98/NT]
3.3.4
A826_ADs_Float
• Description :
This subroutine will perform a number of A/D conversions by polling. This
subroutine is very similar to A826_AD except that this subroutine will perform
wCount of conversions instead of just one conversion. The A/D conversing at the
ISA bus’s max. speed. The sampling rate is about 90K samples/second which
testing under Pentium-133 CPU. Then the A/D data are stored in a data buffer in
Float format. The fBuf is the starting address of this data buffer.
• Syntax :
WORD A826_ADs_Float(WORD wBase, WORD wChannel, WORD wConfig,
float fBuf[], WORD wCount);
• Parameter :
wBase
: [
Input
] I/O port base address, for example, 0x220
wChannel :
[
Input
] A/D channel number
wConfig
: [
Input
] Configuration code, refer to 1.2 for detail information
fBuf :
[
Output
] Starting address of the data buffer
(in float format)
wCount
: [
Input
] Number of A/D conversions will be performed
• Return Value :
AdError1
: A/D converter error
NoError
: Operation is OK
Date: Aug-15-2000 Ver: 2.2 Page 40