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ARM USB JTAG in-circuit debugger/programmer

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ARM USB JTAG in-circuit debugger/programmer


The Flyswatter is a small USB to JTAG in-circuit debugger and programmer designed for ARM cores. It can be used with all ARM processors that are supported by OpenOCD. It connects via USB to the host PC. The Flyswatter is based upon FTDI's popular FT2232 USB UART/FIFO IC. It provides a standard 14-pin JTAG interface as well as a standard RS232 port with support for full modem signals.

The big advantage of owning a good ARM debugging system is that if you're new to the ARM processor and its associated compiler, you can use the debugger to halt execution of example code and study it operation and note what effects the code is having on the ARM hardware.

  • 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)
  • No external power supply required – it runs off of the USB power from the host computer
  • Open hardware – complete schematic provided
  • Open software - software supported by OpenOCD (open source) debugger
  • Works with BeagleBoard
  • 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)

The Flyswatter can be used to flash the bootloader, Linux kernel, and root file system onto the Hammer CPU board.


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Memory usage: real: 35127296, emalloc: 30070352
Code ProfilerTimeCntEmallocRealMem