Pepper-computer Modular Computers RS485 Bedienungsanleitung PDF herunterladen (Seite 230)

100

101

SMART I/O User’s Manual

March 12, 1996

Page 5 - 74

Chapter 5 Analog Modules

5.3.8.8 SMADCGetPrecision

Syntax

error_code SMADCGetPrecision(u_int8 PortNr, u_int8

channel, u_int16 *pBuffer);

Description

This function checks if an SM-THERM board is fitted on the specified port

and if the channel is valid. It gets the precision/filter setting of the AD

Converter and stores the value in a user defined buffer. The user has to take

care that there is enough space to store the data.

Input

u_int8 PortNr

Port number from which to get data

(from 0 to 10)

u_int8 channel

Number of specified channel (0 to 3)

u_int16*pBuffer

Pointer to a user defined buffer

Output

error_code SUCCESS

E_MNF

If wrong type of module or no module

is fitted on the selected port

E_PARAM

If wrong channel number is specified

or standard OS-9 error code (refer to the OS-9

Technical Manual Error Codes Section).

Example

RetVal = SMADCGetPrecision(0, 1, &Buffer);

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