SMART I/O User’s Manual
October 01, 1996
©1996 PEP Modular Computers GmbH
Page 5 - 118
Chapter 5 Analog Modules
5.5.8.6 SMDAC1PutVRaw
Syntax
error_code SMDAC1PutVRaw(u_int8 PortNr, u_int8
Channel, u_int16 Value);
Description
This function sets the selected DAC channel to the chosen value. No gain or
offset correction is performed and the given value will always be masked to a
12-bit value.
Input
u_int8 PortNr
SM-Port number to be accessed
u_int8 Channel
Number of the DAC output channel to access
(0-5)
u_int16 Value
Value to be written
Output
error_code SUCCESS
E_SEEK
if module was not initialized
E-BMODE
if the module is unknown
or standard OS-9 error code (refer to the OS-9
Technical Manual Error Codes Section).
Example
RetVal = SMDAC1PutVRaw(0, 1, 0x0FFF);
Value (16-bit HEX)
Unipolar Bipolar
Positive Full-Scale $0FFF Positive Full-Scale $0FFF
+1LSB $0001 +1LSB $0801
0 $0000 0 $0800
-1LSB $07FF
Negative Full-Scale $0000
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