ADM-XRC-7V1 User Manual
V1.9 - 23rd Aug 2016
3.7.1 Automatic Temperature Monitoring
The onboard system monitor microcontroller contains pre-programmed temperature limits. The temperature limits
are shown in Table Temperature Limits:
.
Target FPGA
Bridge FPGA
Board
Min
Max
Min
Max
Min
Max
Commercial
0 degC
+85 degC
0 degC
+85 degC
0 degC
+85 degC
Extended
0 degC
+100 degC
0 degC
+100 degC
0 degC
+100 degC
Industrial
-40 degC
+100 degC
-40 degC
+100 degC
-40 degC
+100 degC
Table 11 : Temperature Limits
Important:
If either FPGA temperature limit is exceeded, the Target FPGA is automatically cleared. This is indicated by the
Green LED (Target Configured or DONE) switching off and the two status LEDs showing a temperature fault
indication. This condition is cleared with a power cycle.
The purpose of this mechanism is to protect the card from damage due to over-temperature. It is possible that it
will cause the user application and, possibly, the host computer to "hang" as a result of communication errors.
An overtemperature shutdown will not occur until the system monitor reads 5 degC above the maximum limit for
multiple samples in a row (i.e. +105 degC for Industrial boards). This is to compensate for potential errors in the
temperature readings. There is no protection mechanism in place for minimum temperatures or the "Board"
temperature sensor limits.
3.7.2 Microcontroller Status LEDs
LEDs D7 (Red) and D8 (Green) indicate the microcontroller status.
LEDs
Status
Green
Running and no alarms
Green + Red
Standby (Powered off)
Flashing Green + Flashing Red
(together)
Attention - critical alarm active
Flashing Green + Flashing Red
(alternating)
Service Mode
Flashing Green + Red
Attention - alarm active
Red
Missing application firmware or
invalid firmware
Flashing Red
FPGA configuration cleared to
protect board
Table 12 : Status LED Definitions
Page 16
Functional Description
ad-ug-1248_v1_9.pdf