XK-1A Development Board Quick Start Guide
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1
Introduction
The XK-1A is a low cost development board intended for exploring event-driven
processor designs. It comprises a single XS1-L1 device, 128KBytes SPI FLASH memory,
four LEDs and two press-button switches. Two XSYS Connectors let you link multiple
XK-1A boards together in a chain and two banks of 0.1" IDC connectors are provided
for connecting additional components to the XK-1A. An XTAG-2 debug adapter can
be used to connect the XK-1A to a USB 2.0 port on a PC, providing a JTAG interface
that can be used to load and debug programs on the board. The XK-1A can be
powered directly from the XTAG-2 debug adapter or from an external 5V power
supply.
To program the XK-1A you need to download a set of free Development Tools from
the XMOS website. The tools let you write, load and debug programs on your
development board using the XTAG-2.
Further information on using the XK-1A and additional resources including the
development tools is available from http://www.xmos.com/xk1a .
2
XK-1A Demos
A set of demonstrations is pre-installed on the XK-1A board which you can use to
test the hardware. Additional demonstrations can be downloaded from the XMOS
web site, including an XK-1A tutorial which introduces the key concepts you need to
understand when programming the XK-1A board.
We recommend that you install the XMOS Development Tools before you connect the
XK-1A to your development system—see Section 3 .
1. Connect the 20-way IDC header on the XTAG-2 to the left XSYS connector on
the XK-1A board.
2. Plug the XTAG-2 into a USB 2.0 connector on your development system.
The XK-1A board starts up and ?ashes the four LEDs in sequence across the
top of the board.
3. Press Switch A on the XK-1A to increase the speed that the LEDs ?ash.
4. Press Switch B to change the order that the LEDs ?ash.
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