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8 miscellaneous commands – Matrix Orbital LK204-24-USB User Manual

Page 42

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Command

Syntax

Default

Notes

Remember GPO / PWM

state

FE C2

254 195

n/a

This

command

will set the start

up state for all the

GPOs.

Set PWM base frequency

(New in Firmware Revi-

sion 1.1)

FE C4 [index]

254 196 [index]

6

This

command

sets

the

base

frequency for the

PWM

modula-

tion.

Remember PWM base fre-

quency

(New in Firmware Revi-

sion 1.1)

FE C5 [index]

254 197 [index]

6

This

command

will set the PWM

frequency

for

startup.

8.8 Miscellaneous Commands

NOTE The letter “R” in the default column indicates that this state can be saved to non-

volatile memory with the “Remember” command.

Table 34: Miscellaneous Commands

Command

Syntax

Default

Notes

Remember

FE 93 [0|1]

254 147

off

Turns the “re-

member”

func-

tion on [1] or off

[0].

Clear display

FE 58

254 88

254 “X”

n/a

Clears screen of

text and graphics,

places text cursor

at top left.

Set contrast

FE 50 [contrast]

254 80 [contrast]

254 “P” [contrast]

0x80

128

Sets display con-

trast.

Compen-

sates for viewing

angle.

Contrast

is a value between

0 and 255 (hex 0

to FF). Larger =

darker.

Matrix Orbital

LK204-24-USB

38