Smadc1Getvraw - PEP Modular Computers Modular Computers RS485 User Manual

SMART I/O User's Manual

5.4.8.3 SMADC1GetVRaw

Syntax
error_code SMADC1GetVRaw(u_int8 PortNr, u_int8
Description
This function fetches the conversion result of a selected channel without
performing a gain or offset correction. The result is always a signed integer
value.
Input
u_int8 PortNr
u_int8 Channel
int16 *pValue
Output
error_code
Example
RetVal = SMADC1GetVRaw(0, 2, 0x07FF);
Positive Full-Scale
+1LSB
0
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SM-Port to be accessed
Number of the ADC input channel to access
(0-3)
Pointer to the location where the conversion
result will be stored
SUCCESS
E_SEEK
E-BMODE
or standard OS-9 error code (refer to the OS-9
Technical Manual Error Codes Section).
Value (16-bit HEX)
Unipolar
$0FFF
$0001
$0000
©1996 PEP Modular Computers GmbH
Chapter 5 Analog Modules
Channel, int16 *pValue);
if module was not initialised
if the module is unknown
Bipolar
Positive Full-Scale
+1LSB
-1LSB
Negative Full-Scale
$07FF
$0001
$FFFF
$F800
October 01, 1996