Analog Devices ADZS-21569-EZKIT, Руководство пользователя

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Table 3-8:
Boot Mode Switch (Continued)
Position Processor Boot Mode
5 OSPI Master Boot
6 Reserved
7 Reserved
Reset Pushbutton (
SW2
)
The reset pushbutton resets the ADSP-21569 processor. The reset signal also is connected to the expansion connec-
tors via the
SYS_HWRST signal. Reset ( LED11 ) is used to indicate when the board is in reset.
GPIO Pushbuttons (
SW4 and SW3
)
The GPIO pushbuttons are connected to the processor’s signals PB_03/TM0_TMR3/FLG2/SPI2_SEL2b/
SMC0_ADDR1/CNT0_UD and PC_07/LP1_CLK/OSPI_SEL4b/TM0_TMR9/SYS_FAULT , respectively.
The GPIO pushbuttons can be disconnected from the processor by setting SoftConfig, see Software-Controlled
Switches (SoftConfig) for more information.
Rotary Encoder (
SW7
)
The rotary encoder can be turned clockwise for an up count or counter-clockwise for a down count. The encoder
also features a momentary switch, activated by pushing the switch towards the center of the board, that can be used
to set the counter to zero. The rotary encoder is a two-bit quadrature (Gray code) encoder.
The rotary encoder can be disconnected from the processor by setting SoftConfig, see Software-Controlled Switches
(SoftConfig) for more information.
JTAG Interface (
SW5 and SW6
)
The JTAG Interface switches select between a single processor (one board) and multiprocessor (more than one
board) configurations. By default, the switches are set up for a single EZ-KIT configuration.
Table 3-9: Single Processor Configuration
Location Position
SW5.1 ON
SW5.2 OFF
SW5.3 ON
SW5.4 OFF
SW5.5 ON
SW5.6 OFF
Switches
ADZS-21569-EZKIT Manual 3–11