Omega-engineering OME-A826PG Instrukcja Użytkownika Pobierz pdf (Strona 41)

OME-A-826PG Software Manual [Win 95/98/NT]

3.3.3 A826_ADs_Hex

• 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. After A/D conversing, the A/D data are stored in

a buffer in Hex format. The wBuf

is the starting address of this data buffer.

• Syntax :

WORD A826_ADs_Hex(WORD wBase, WORD wChannel, WORD

wConfig,short wBuf[], WORD wCount);

• Parameter :

wBase : [Input] I/O port base address, for example, 0x220

wChannel : [Input] A/D channel number

wConfig : [Input] Configuration code,

please refer to Section 1.2 for detail information

wBuf : [Output] Starting address of the data buffer

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 39

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