
Hercules III User Manual Rev A.2
www.diamondsystems.com
Page
32
7.3
LCD Panel Configuration (JP4, JP5, JP6)
Hercules III has three jumpers that set the LCD configuration.
JP4: LCD panel supply v3.3V or +5V
Pins
Jumper installed
Default
1-2
+5V LCD VDD
No jumper
2-3
+3.3V LCD VDD
Jumper
JP5: LCD backlight power +5V or +12V (+12V provided through the input power connector)
Pins
Jumper installed
Default
1-2
+5V LCD backlight power
Jumper
2-3
+12V LCD backlight power
No jumper
JP6: LCD panel scan direction and frame rate control
Pins
Jumper installed
Jumper not installed
Default
1-2
Scan direction: Normal scan
Scan direction: Reverse scan Jumper
3-4
Frame Rate Control: Off
Frame Rate Control: On
Jumper
7.4
IRQ & FPGA Address Selection (JP7)
JP7 sets the A/D IRQ and the address of the FPGA as follows.
Pins
Jumper installed
Jumper not installed
Default
1-3
A/D IRQ 5
Jumper
3-4
A/D IRQ 7
No jumper
5-6
FPGA address: x260
FPGA address: x240
No jumper