Alpha250 temperature sensors. Voltage reference in blue, board in red.
The Zynq temperature T2 is also monitored using the XADC on the FPGA. The TemperatureSensor driver
(https://github.com/Koheron/koheron-sdk/blob/master/boards/alpha250/drivers/temperature-sensor.hpp) allows to retrieve the 3
above temperatures. For reliable operation, make sure that T1 < 70 °C and T2 < 85 °C.
Power monitors
The Alpha250 includes two power monitors (Texas Instruments INA230 (http://www.ti.com/lit/ds/symlink/ina230.pdf)). Two rails
are monitored: the external 12 V power supply and the clocking subsystem supply. In both cases, the current shunt resistor is 10
m
. Both power monitors are accessible on the
bus via the PowerMonitor driver (https://github.com/Koheron/koheron-
sdk/blob/master/boards/alpha250/drivers/power-monitor.hpp).
EEPROM
The Alpha250 has a 64-kbit EEPROM (Microchip 24AA64T-I/MC
(http://ww1.microchip.com/downloads/en/DeviceDoc/21189K.pdf)). It is accessible on the
(https://github.com/Koheron/koheron-sdk/blob/master/boards/alpha250/drivers/eeprom.hpp).
The EEPROM is divided into two parts. The lower addresses are used by Koheron to store identi cation and calibration data. The
higher addresses (above 0x1000) are for user applications. The EEPROM map addressing is given in the table below.
Summary of Contents for Alpha250
Page 14: ......
