Datasheet

Maxim Integrated │ 8
MAX31865 Evaluation Kit Evaluates: MAX31865
www.maximintegrated.com
Troubleshooting
All efforts were made to ensure that each kit works on the first try, right out of the box. In the rare occasion that a problem
is suspected, refer to the table below to help troubleshoot the issue.
SYMPTOM CHECK SOLUTION
GUIsayshardwarenot
found.
IstheD20LEDred?
Ifyes,thentheelectronicfuse(U20)isinafaultstate.Inspect
for electrical shorts on the PCB and ensure that the PCB is not
sitting on a conductive surface.
DoestheD21LEDturnoffwhen
theGUIisrunning?
Ifnot,thenexittheGUIandtryrunningitagain.IfD21still
doesnotturnoff,thenexittheGUIandtryconnectingtheUSB
cabletoadifferentUSBportonthePCandwaitforaWindows
messagethatstatesthehardwareisreadytouse.RuntheGUI
again.IfD21stilldoesnotturnoff,unplugtheUSBcableand
rebootthePC.ConnecttheUSBcableandopentheGUI.
AreanyoftheLEDsilluminated?
If not, then the PCB may not be getting power from the USB.
Try a different USB cable or a different USB port.
RTD Data register
reportsall00sorallFFs
Are all terminal block connections
secure and making good contact?
Unscrew all terminals in the terminal block. Remove and reinsert
the RTD resistor, paying special attention to the connector
diagramonthePCBsilkscreenandjumperwires.