From: eLinux.org

Flyswatter

Contents

• 1 Introduction
• 2 Supported Devices
• 3 JTAG Adapters
• 4 Serial Port
• 5 Serial Port Interface
• 6 Flyswatter How To
• 7 Flyswatter2

Introduction

The Flyswatter JTAG board is a low cost
USB
based JTAG programmer for the Hammer
CPU
board. It can be used with all
ARM
processors that are supported by OpenOCD. It is
based upon
FTDI‘s
popular
FT2232
USB
UART/FIFO
IC. The Flyswatter provides a standard JTAG interface as well as a
standard
RS232
port with support for full
modem
signals.

available from TinCanTools at
http://www.tincantools.com/JTAG/Flyswatter.html

Features:

• USB
  2.0 Full Speed device (12 Mbits/sec) interface
• Can be used to debug and program all ARM processors supported by
  OpenOCD
• Provides a standard 2x7 pin JTAG interface
• Adds a virtual RS232 serial port to your computer or laptop with
  full modem signals: TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI
• Supports ARM target voltages of: 3.3V, 2.5V, 1.8V, 1.5V, 1.2V
  (voltage range: 1.2V to 3.6V)
• Adds a virtual RS232 serial port to your computer or laptop with all
  of the modem signals: DTR, DSR, DCD, RTS, CTS, Rx, Tx
• No external power supply required – it runs off of the USB voltage
  from the computer
• Open hardware – complete schematic provided
• Open software - software supported by OpenOCD (open source) debugger
• Included CD comes with OpenOCD for Linux
• Dimensions: 2.5 inches (width) x 3.0 inches (height)
• Package Includes: Flyswatter board, USB Cable, 8 inch JTAG ribbon
  cable (14 pin - 2x7)

Supported Devices

OpenOCD supports the following
ARM
cores:

OpenOCD also supports the following
MIPS
cores (requires a MIPS 14-Pin JTAG Adapter):

JTAG Adapters

JTAG Adapters plug into the ARM 14-pin connector located on the
Flyswatter and change the pin-out to a different JTAG interface. Three
JTAG adapters are available for the Flyswatter:

ARM 20 pin JTAG Adapter

ARM 20-Pin JTAG Adapter -This adapter converts the Flyswatter’s JTAG
interface into a standard ARM 20-pin configuration. The package also
includes 14-pin ribbon cable.

BeagleBoard JTAG Adapter

BeagleBoard JTAG Adapter -This adapter converts the Flyswatter’s
JTAG interface into a standard TI 14-pin JTAG configuration. The package
also includes a serial adapter board that converts the DB-9 Male
connector located on the Flyswatter to a 10-Pin ribbon cable. This
ribbon cable is used on the BeagleBoard Rev B/C boards to interface to
the serial port. The 10-pin ribbon cable is included in the package.

MIPS 14-Pin JTAG Adapter

MIPS 14-Pin JTAG Adapter -This adapter converts the Flyswatter’s
JTAG interface into a standard MIPS 14-pin JTAG configuration. The
package also includes 14-pin ribbon cable.

Serial Port

The Flyswatter’s serial port provides you with an independent functional
“USB to RS-232” serial device. The serial port is completely independent
from OpenOCD on both Linux and Windows. You can use the Flyswatter’s
serial port and never have to use OpenOCD or JTAG, or you can use it
together with OpenOCD and have both a serial port and JTAG interface
operating at the same time for debugging your target device.

For Linux, the RS232 driver for the FT2232 is part of the main kernel
tree and is provided in most standard Linux distributions. In Windows,
you have to load the Windows driver for the FT2232. Once the driver is
loaded, Windows will assign a virtual COM port to the Flyswatter’s
serial port. It operates just like a standard COM port. You can use the
Flyswatter’s serial port on laptops or PC’s that do not have a 9-pin
legacy serial connector.

Serial Port Interface

You can use Minicom to communicate with the
Flyswatter’s serial port on Linux. See the Minicom
page for setup instructions.

Documents:

• JTAG Connector Pin
  Assignments
• Flyswatter schematic
  diagram

Source Code:

• OpenOCD Source
• LibFTD2xx library
  files

available from
TinCanTools

Devices that have been tested:

• Hammer: Supported by the software
  kit/tools that come with the Hammer
• NSLU2: requires a JTAG connection to be added to the
  NSLU2 and
  nslu2.cfg, nslu2.ocd and Debug_handler.bin files. You can use these
  samples, but may need to
  edit the nslu2.ocd as appropriate.
• Zipit Z2: requires soldering
  directly to the Z2 board,
  and using z2.cfg and following
  this how-to.

Flyswatter How To

The Flyswatter How To and
Flyswatter Windows How
To guides show
a new user how to connect the Flyswatter to the Beagleboard, and how to
install and run OpenOCD and GDB
Debugger. To reach the guide, follow the
link in the section title.

Flyswatter2

TinCanTools has a new JTAG debugger at
Flyswatter2
that has support for OpenOCD and ARM Cortex A8 processors: OMAP3530
BeagleBoard and DM3730 BeagleBoard-xM. The Flyswatter2 is 5 to 10 times
faster than the original Flyswatter.

They also have a ARM20TI14 JTAG
Adapter.
This JTAG adapter board works with the
BeagleBoard and BeagleBoard-xM.

The Flyswatter2 can be used with
OpenOCD
(Beagle (OMAP3xx) support is complete).

To use the Flyswatter2 under Ubuntu (and derivatives) without superuser
rights, place this in /etc/udev/rules.d/60-flyswatter2.rules (or
whatever name you like):

SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", \
SYSFS{idVendor}=="0403", SYSFS{idProduct}=="6010", MODE="0666"

Maybe it also works for the original Flyswatter, but not yet verified.
If not, the idVendor and idProduct values must be adjusted.

Categories:

• TinCanTools
• Flyswatter