Pepper-computer Modular Computers RS485 Uživatelský manuál stáhnout pdf (Strana 64)

100

101

SMART I/O User’s Manual

March 12, 1996

Page 2 - 24

Chapter 2 SMART-BASE

2.6.6 SMTrd

Syntax

error_code SMTrd(u_int32 *value);

Description

This function reads the actual timer count value.

NOTE !

A stable read value can only be achieved if the timer is not running. There-

fore, a read request to the running timer terminates with

E_DEVBSY.

Input

u_int32 *value

Pointer to a variable in which to place the read

value.

Output

error_code SUCCESS

E_DEVBSY

Timer is currently running

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

Technical Manual Error Codes Section).

Example

RetVal = SMTrd(buffer);

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 319 320

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