Examples
Crystal Speed
16 Mhz
Desired BAUD
13,500
speed
=
crystalspeed
8
∗
DesiredBaud
−
1
speed
=
148
.
15
−
1
speed
=
16
,
000
,
000
8
∗
13
,
500
−
1
speed
=
147
.
15
•
LSB
= 0x93 (rounded)
•
MSB
= 0x00
•
Intended Baud Rate: 13,500 baud
Actual Baud Rate:
16
,
000
,
000
8
(
147
+
1
)
=
13,514
Percent Difference: 0.1%
NOTES
•
Results from the formula are rounded down to the nearest whole number (i.e 73.07
= 73).
•
This formula becomes less acurate as baud rates increase, due to rounding.
•
Place the speed result backwards into the formula to receive the actual baud rate.
(
Baud
=
CrystalSpeed
8
(
speed
+
1
)
)
•
The actual baud rate must be within 3% of the intended baud rate for the device to
communicate.
NOTES
•
This command is not available in I
2
C mode.
5
Fonts
5.1
Introduction
The GLK12232-25-SM comes loaded with the ’Small Filled’ and ’Futura Bk BT 16’ fonts by default.
However, it is capable of displaying any font that is uploaded to it in the correct format. MOGD# provides a
simple method of generating font files from your installed fonts. For instructions on how to install MOGD#
see
Section 1.5.1 on page 4
.
Matrix Orbital
GLK12232-25-SM
19
