EPSILON5 MKIV - USB Programmer - User Guide V1.05 19/09/12
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2.11 Hardware - Fault Finding Guide
i.
Target Vcc LED does not illuminate when
power is applied to the Programmer /
Target System
•
Switch power off immediately in case of
a short-circuit !
•
Check that you have chosen the correct
ISP Header to connect to your Target
System.
•
Check that the ISP Cable is inserted the
correct away around into the ISP Header
Socket on the Target System.
•
If the Programmer is powering the Target
System, check that the
‘Vcc Jumper’
(J9)
is fitted.
•
If Programmer and Target System are
independently powered, check that the
‘Vcc Jumper’ (J9)
is removed. Also
check that the Vcc line from the Target
System is definitely still connected to the
Programmer Vcc pin on one of the ISP
Headers.
ii.
FAIL LED constantly flashing
•
If you are running firmware 2.46 or below
then the FAIL LED will flash when you
initially power up the programmer.
•
To clear the FAIL LED condition, press
the
<NO>
key.
•
If there are no
‘Standalone
Programming Projects’
loaded into the
Programmer – Flash Memory Store, the
FAIL
LED will continue to FLASH until at
least one Project is uploaded.
