Pepper-computer Modular Computers RS485 Instrukcja Użytkownika Pobierz pdf (Strona 116)

100

101

SMART I/O User’s Manual

March 12, 1996

Page 4 - 28

Chapter 4 Digital Modules

4.2.8.5 SMDOUT1Set

Syntax

error_code SMDOUT1Set(u_int8 PortNr, u_int8 *buffer);

Description

This function sets the output of the port PortNr with the contents of the

address pointed to by buffer. When writing to this buffer, observe that all 8

outputs are set at the same time.

Input

u_int8 PortNr

SM-Port number to fetch data

u_int8 *buffer

Pointer to buffer where the data is to

be written

Output

error_code SUCCESS

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

Technical Manual Error Codes Section).

Example

RetVal = SMDOUT1Set(0, buffer);

Buffer Explanation:

D7 D0

Ch.7 Ch.6 Ch.5 Ch.4 Ch.3 Ch.2 Ch.1 Ch.0

Bit Value : 0 = Output is ON

1 = Output is OFF

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 319 320

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