IBM AR-B3001, Руководство пользователя, Страница: 20 / 41

ACROSSER TECHNOLOGY
20
To create executable programs with assembly driver
routine, you have to link your module with A3001LIB.OBJ
as following example.
LINK A3001LIB;
Function 0 - Select Channel and Trigger ADC
Purpose
This function selects the analog input channel and
sends a pulse to trigger the ADC.
Input Arguments
The following input arguments have to be initialized
before calling the function.
AH = 0, specifies function 0.
AL = Channel number. Valid number is 0 to 7 for
differential input or 0 to 15 for single-ended
input.
DX = The I/O port base address. Base address can be
located between 100H and 3FCH.
Returns
AL = 0, Good return.
= 1, Conversion is already in process.