Debug Interface; Board Power; Power-On-Self Test; Example Programs - Analog Devices EV-21569-SOM Manual

Debug Interface

Debug Interface
The EV-21569-SOM provides a JTAG connection via P1 . This is for attaching an emulator, such as the ICE-1000
or ICE-2000 to for debugging.
When the EV-21569-SOM is connected to a carrier board the Debug Agent on the carrier board can be used. To use
this Debug Agent, all postions on SW1 (on the carrier board) must be in the ON position. If an emulator, such as
the ICE-1000 or ICE-2000, is used instead all postions on SW1 must be in the OFF position.

Board Power

The EV-21569-SOM powered via P2 when the board is in standalone mode. When in this mode the jumper on
JP1 should be on Pins 1-2 to select power input from P2 . When the EV-21569-SOM is connected to a carrier
board the power is supplied via the carrier board. When in this mode the jumper on JP1 should be on Pins 2-3 to
select power input from the carrier board.

Power-On-Self Test

The Power-On-Self-Test Program (POST) tests all the EZ-KIT carrier board peripherals and validates functionality
as well as connectivity to the processor. Once assembled, each EZ-KIT carrier board is fully tested for an extended
period of time with POST for all the compatible SoM modules. All EZ-KIT carrier boards are shipped with POST
preloaded into flash memory. The POST is executed by resetting the board and connecting the USB To UART to
your PC with an open terminal window. The POST also can be used as a reference for a custom software design or
hardware troubleshooting.
Note that the source code for the POST program is included in the Board Support Package (BSP) along with the
readme file that describes how the board is configured to run POST.

Example Programs

Example programs are provided with the EV-21569-SOM Board Support Package (BSP) to demonstrate various ca-
pabilities of the product. The programs can be found in the EV-21569-SOM\examples installation folder. Re-
fer to the readme file provided with each example for more information.

Reference Design Information

A reference design info package is available for download on the Analog Devices Web site. The package provides
information on the schematic design, layout, fabrication, and assembly of the board.
The information can be found at:
http://www.analog.com/EV-21569-SOM
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EV-21569-SOM Manual