Техническая Спецификация для Olimex Low-cost high-speed ARM USB JTAG (supported by OpenOCD open source arm debugger) ARM-USB-TINY-H ARM-USB-TINY-H
Модели
ARM-USB-TINY-H
ARM-USB-OCD
rev 1.00/07-2006
The base features are:
- based
on
FT2232L IC from Future Technology Devices International Ltd.
- fast
speed
USB 2.0 JTAG dongle interface, can be used with any ARM devices for programming and debugging
(which are currently supported by openOCD).
-
the JTAG cable uses ARM's standard 2x10 pin JTAG connector
-
supports ARM targets working in voltage range 2.0 – 5.0 V DC
-
software supported by OpenOCD (open source) debugger
- adds
virtual
RS232 port to your computer with all modem signals like: DTR, DSR, DCD, RTS, CTS, Rx, Tx
-
can be used as power supply to your target board with three jumper selectable power supplies: 5V 9V and 12VDC,
USB source current is limited with resetable fuse at 300mA, at the different output voltage the maximum current is
different: 5V/200mA, 9V/100mA, 12V/70mA, note that this also depend on your USB host current capabilities, if other
USB devices are attached to your computer or if the laptop is running on batteries these figures may be different and
depend on your computer USB host.
USB source current is limited with resetable fuse at 300mA, at the different output voltage the maximum current is
different: 5V/200mA, 9V/100mA, 12V/70mA, note that this also depend on your USB host current capabilities, if other
USB devices are attached to your computer or if the laptop is running on batteries these figures may be different and
depend on your computer USB host.
-
CD with Windows installer for full featured and open source tools as alternative to the commercial ARM
development packages:
development packages:
GCC C compiler
,
openOCD debugger
and
Eclipse IDE
.
FT2232 signal assignments:
Copyright © 2006, OLIMEX Ltd. All right reserved.
http://www.olimex.com/dev
ARM-USB-OCD
is unique device which combine JTAG debugging
hardware, RS232 virtual port and power supply adapter in one single
compact form. Many of the new laptop computers have no parallel nor serial
ports but only USB, with ARM-USB-OCD you can debug your ARM boards,
have full featured virtual RS232 port with all modem signals on it and the
power jack can provide three fixed value voltages 5V – 9V – 12V DC via
jumper selection.
compact form. Many of the new laptop computers have no parallel nor serial
ports but only USB, with ARM-USB-OCD you can debug your ARM boards,
have full featured virtual RS232 port with all modem signals on it and the
power jack can provide three fixed value voltages 5V – 9V – 12V DC via
jumper selection.
JTAG signals
VREF – voltage follower input for the output buffers adjust JTAG signals
as per your target board voltage levels
VREF – voltage follower input for the output buffers adjust JTAG signals
as per your target board voltage levels
ADBUS0
-> TCK;
ADBUS1
-> TDI;
ADBUS2
-> TDO;
ADBUS3
-> TMS;
ADBUS4
-> 0 to enable JTAG buffers;
ADBUS5
-> 0 if target present;
ADBUS6
-> TSRST in;
ADBUS7
-> RTCK;
ACBUS0
-> TRST;
ACBUS1
-> TSRST;
ACBUS2
-> TRST buffer enable
ACBUS3
-> RED LED;
RS232 signals
BDBUS0
-> RS232 Tx
BDBUS1
-> RS232 Rx
BDBUS2
-> RS232 RTS
BDBUS3
-> RS232 CTS
BDBUS4
-> RS232 DTR
BDBUS5
-> RS232 DSR
BDBUS6
-> RS232 DCD
Power supply jumpers:
the power supply jumpers are on
right side of the 2x10 pin JTAG
connector.
right side of the 2x10 pin JTAG
connector.
-
If both jumpers are open
the output voltage is
the output voltage is
12VDC
- If
right jumper is closed
the output voltage is
9VDC
- If
left jumper is closed the
output voltage is
5VDC
(this is the default setting)
The inner pin of the power supply
jack is +
jack is +