EPSILON5-UPG3 Equinox Technologies, EPSILON5-UPG3 Datasheet - Page 64
EPSILON5-UPG3
Manufacturer Part Number
EPSILON5-UPG3
Description
UPGRADE EPSILON5 JTAG ISP AVRMCU
Manufacturer
Equinox Technologies
Type
Upgrade Kitr
Datasheet
1.EPSILON5-A1.pdf
(85 pages)
Specifications of EPSILON5-UPG3
Mfg Application Notes
SPI and JTAG (ISP), Appl Note
For Use With/related Products
Epsilon5
Other names
483-1008
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- Download datasheet (2Mb)
3.6 Programmer and Target System are independently powered
3.6.1 Overview
In this scenario, the programmer is powered from a completely independent supply to the Target
System. The Jumper J9 is NOT fitted which isolates the Target Vcc voltage (V_TVCC) from CON1
VIN. This means that the programmer is always powered up.
Explanation of operation:
•
•
•
•
•
3.6.2 Hardware Setup - Programmer and Target System independently
powered
Warning!
EPSILON5 MKII Programmer - User Guide V1.12 – 1
The programmer is always powered ON
Jumper J9 is removed
The Target Power Supply should be switched OFF before the ISP cable is plugged into it
The programmer does not draw any current from the Target System during programming
When programming is complete, the Target System should be powered OFF and then the ISP
cable removed
•
•
•
The external voltage applied to the programmer via CON1 must be between 3.1 and 5.0V !
The voltage applied to the programmer via the ISP cable must be between 3.1 and 5.0V as
this voltage is used to drive the programmer I/O Stage. A 6V2 5W zener diode is internally
connected across the programmer supply to protect against over-voltage.
J9 must be removed to avoid contention between the two power supplies.
st
August 2007
53
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