FS2003 ISP
Programmer - User Guide V1.07 – 1
st
September 2007
27
2.4.4 Powering the programmer from the Target System at 3.0 – 5.0V
•
The Target System can supply power to
the programmer as long as the Target
Voltage is 3.0 – 5.0V.
•
The Target System must be able to
supply the worst case programming
current to the programmer (approx
60mA).
•
Fit
the
Jumper J9
which connects the
Target Vcc
(3.0 – 5.0V) on the ISP
Header connectors to the Programmer
Vcc rail.
•
The programmer will automatically boost
the
Target Vcc
supply up to +5.0V if it is
less than 5.0V.
2.4.5 Programmer and Target System are Independently powered
•
The programmer is powered from +9.0 to
12.0V via the DC power input (CON1) on
the rear panel of the programmer.
•
The Target System is powered from an
independent power supply.
•
The
Jumper J9 must NOT be fitted
.
This disconnects the Target Vcc from the
Prog5V Vcc.
•
The
‘Target Vcc’
signal must still be
connected to the
‘Programmer Vcc’
signal on the ISP Header as this voltage
is used to power the
‘I/O Level
Convertor’.
