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Figure 1: CPU board layout and default jumper settings
D E F A U L T J U M P E R S E T T I N G S
These jumpers come in the SHORT position as a default factory setting:
J2:
The CPU is connected to the +5V power supply through this jumper
J3:
The CPU AVCC supply pin is con5V power supply through this jumper
J4:
The CPU AGND supply pin is connected to the GND through this jumper
J5:
The CPU AVR+ pin is connected to the +5V voltage through this jumper
J6:
The CPU AVR- pin is connected to the 0V voltage through this jumper
J7-9:
The CPU UART1 signals are connected to the K7 connector
J13:
The board is powered from the +5V from the power supply voltage regulator
J19:
The CPU HRQ pin is connected to the SDA Mainboard signal
J20:
T
he CPU #HAK pin is connected to the SCL Mainboard signal
8 7 6 5 4 3 2 1
ON