Arrow DECA User Manual page 60

INA230 can also monitor Bus Voltage (V
INA230 register value can be read by MAX10 I2C. INA230AIRGTR I2C Slave-address is 0x80.
 Function Block Diagram
Figure 5-6 is the function block diagram of this demonstration. POWER_MONITOR module is
used to read INA230 register values. POWER_MONITOR module keeps sending I2C timing to
read INA230 registers which including Bus_Voltage Register (Address: 0x02), Shunt_Voltage
Register (Address: 0x01), Current Register (Address: 0x04) and Power Register (Address: 0x03).
TP module here has the same function with the TP module in previous project, it is used to collect
signals to SignalTap II.
The precision of the current value converted by INA230 depends on Calibration (CAL) register
setting. Refer to following equation for CAL Register setting:
DECA User Manual
) and use embedded multiplier to work out P (I x V
B
Figure 5-6 Block diagram of the Power Monitor
59
).
B
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May 22, 2015