forte_en.pdf - 第15页

Page 15 2.5.2 GO Button This butt on simplifies work with th e applicat ion being programmed. It triggers device program ming or another pre-programmed functio n. Fo r furt her in formation on settings see Setting th e G…

100%1 / 105
Page 14
command line providing for unattended programmer
operation in routine programming, environment
personalization incl. keyboard shortcuts, automatic
generation of serial numbers, etc.
UP has been developed for Windows XP or later.
Modified drivers developed by FTDI are used for
communication through USB.
Devices with the JTAG interface, for which an SVF or an
XSVF file can be created, can be programmed by means
of the JTAG SVF Player software.
The voltage at the VDD pin is permanently displayed in
UP for greater comfort and for monitoring of the
operation. The reset signal is conveniently controlled by a
single button.
2.5
Controls and
Connectors
Fig.2: The FORTE programmer
FORTE features two LEDs, a button, a connector for
linking to USB and a programming connector.
2.5.1 Programming
Connector
The programming connector is a 16 way double row plug
with pin No. 3 (in standard numbering) missing. Spacing
between pins is 2.54mm.
Fig.3: Programming connector
Pin
Type
Description
P
I/O, VPP
signal input/output or VPP output
VDD
PWR
power input/output
GND
PWR
signal grounding
D, C, I, L, T, S, R
I/O
signal input/output
Table1: programming connector
Page 15
2.5.2 GO Button
This button simplifies work with the application being
programmed. It triggers device programming or another
pre-programmed function. For further information on
settings see
Setting the GO Button.
2.5.3 LED Indicators
ACTIVE
This two-state LED informs you of the equipment status.
The yellow color means that there is ongoing
communication between the programmer and a device.
A red color signals an error state.
ON-LINE
The green LED informs you that FORTE is connected to a
computer and that the computer and the programmer
“understand each other”, i.e. drivers are installed and
work correctly.
2.5.4 USB Connector
A standard USB (type B) connector is provided for
connecting to a computer. The programmer uses the
USBHigh-Speed (480 Mbps) interface for communication.
2.6
Connecting to
Application
The programmer should be connected to an application to
be programmed with an ICSPCAB8 or ICSBCAB16 cable.
The cables are designed for 2.54 mm spacing.
Fig.4: ICSPCAB8
Fig.5: ICSPCAB16
The connectors are specified in the next chapter.
2.6.1 Custom-made
Connecting Cable
Should an application to be programmed have a non-
compatible type of connector for linking to the
programmer, the customer can make his/her own
programming cable. Its length should not exceed 15cm.
This is where interleaving of individual signals with GND
in a 16-wire ribbon cable can be used conveniently. In
order to utilize this ground-interleaving, all GND signals
must be actively connected on the application's side.
The following table lists markings of connectors by FCI
Electronics suitable for making a custom cable. Ofcourse,
it is possible to use any similar ones:
FCI marking
Description
65039-036LF
housing, 1 pin
65039-029LF
housing, 1 x 8 pins
65043-029LF
housing, 2 x 8 pins
47217-000LF
pin
Table2: ICSP cable - material list
A cable with a cross-section between 0.1 and 0.3 mm2
may be used for making the custom connecting cable.
Page 16
2.6.2 Programming in ZIF
Socket
If programming of autonomous device is required, i.e.
those that are only later connected to an application, it is
possible by means of our optional ISP2ZIF accessory.
ISP2ZIF consists of a zero insertion force (=ZIF) socket
and an ICSP connector for connecting to the programmer,
which can also provide voltage for feeding the program
circuitry.
2.6.3 Connecting
Procedure
The correct procedure for connecting the programmer:
first connect FORTE to the target application, then
connect FORTE to the USB and finally turn on the
application’s power supply.
Please make sure that the GND of the application, the
programmer and the USB are interconnected before
signals and the power are applied.
Important warning
If an application is powered by a switched
power source or is not grounded, a significant
voltage difference may appear between the
programmer’s ground and the application’s
ground. This could damage the programmer.
The simplest way of connecting the GND prior to the
other signals is to ground the application before
connecting it to the programmer. This can, for example,
be achieved by making the GND pin of the application’s
ICSP connector longer than the other pins. It will make
sure that both grounds are interconnected first.