Pepper-computer Modular Computers RS485 User Manual download pdf (Page 134)

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101

SMART I/O User’s Manual

March 12, 1996

Page 4 - 46

Chapter 4 Digital Modules

4.3.8.9 SMREL1GetExtVcc

Syntax

error_code SMREL1GetExtVcc(u_int8 PortNr,

u_int8 *buffer);

Description

This function gets the input of the port PortNr and writes it to buffer.

If there is no external Vcc, then it returns 0, otherwise it returns 1.

Input

u_int8 PortNr

SM-Port number to get data

u_int8 *buffer

pointer to buffer where data is written

Output

error_code SUCCESS

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 = SMREL1GetExtVcc(0, buffer);

1 2 ... 129 130 131 132 133 134 135 136 137 138 139 ... 319 320

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