Analog Devices ADSP-21591, Руководство пользователя

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The EV-21593-SOM powered via 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 . When the EV-21593-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-21593-SOM Board Support Package (BSP) to demonstrate various ca-
pabilities of the product. The programs can be found in the EV-21593-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-21593-SOM
IS25LP512M - 512M-bit Serial Flash Memory with Dual and
Quad SPI
The IS25LP512M Serial Flash memory offers a versatile storage solution with high flexibility and performance in a
simplified pin count package. ISSI’s “Industry Standard Serial Interface” Flash is for systems that require limited
space, a low pin count, and low power consumption. The device is accessed through a 4-wire SPI Interface consist-
ing of a Serial Data Input (SI), Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins, which
can also be configured to serve as multi-I/O (see pin descriptions).
The device supports Dual and Quad I/O, as well as standard, Dual Output, and Quad Output SPI. Clock frequen-
cies of up to 133MHz allow for equivalent clock rates of up to 532MHz (133MHz x 4) which equates to
66.5Mbytes of data throughput. The IS25xE series of Flash adds support for DTR (Double Transfer Rate)
Power-On-Self Test
EV-21593-SOM
®
Manual
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