beautypg.com

Matrix Orbital GLK12232-25-WBL User Manual

Page 36

background image

Command

Syntax

Default

Notes

Backlight off

FE 46

254 70
254 ’F’

on

Turns off back-
light.

General purpose output on

FE 56

254 86
254 ’V’

off

Turns the general
purpose

output

ON.

General purpose output off

FE 57

254 87
254 ’W’

off

Turns the general
purpose

output

OFF.

Set I

2

C address

FE 33 [address]
254 51 [address]
254 ’3’ [address]

ox50

Value is write ad-
dress and must be
even, read address
is 1 higher.

Read module type

FE 37

254 55
254 ’7’

see table

Reads the module
type. Returns 1-
byte hex value.

Set RS-232 port speed

FE 39 [speed]

254 57 [speed]
254 ’9’ [speed]

19,200

Sets

RS-232

speed.

Enter flow control mode

FE 3A [full] [empty]

254 58 [full] [empty]
254 ’:’ [full] [empty]

off

Sets

"full"

and

"empty"

marks

for the 96 byte
display

buffer.

When

buffer

reaches

[full]

display

will

return

0xFE

to

host.

When

buffer

reaches

[empty]

display

will return 0xFF.

Exit flow control mode

FE 3B

254 59
254 ’;’

Turns

off

flow

control

(buffer

handshaking).

Set Serial Number

FE 34 [byte 1] [byte 2]

254 52 [byte 1] [byte 2]
254 ’4’ [byte 1] [byte 2]

This is a one-
time-use

com-

mand

which

works

only

on

units

without

factory set serial
numbers.

Read Serial Number

FE 35

254 53
254 ’5’

Reads

the

two

byte serial num-
ber of the module.

Matrix Orbital

GLK12232-25-WBL

32