User Manual

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 I2C mode.
5 Fonts
5.1 Introduction
The GLK12232-25 comes loaded with the ’Small Filled’ and ’Futura Bk BT 16’ fonts by default. How-
ever, 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 5.
Matrix Orbital GLK12232-25 19