参数资料
型号: ADZS-21489-EZLITE
厂商: Analog Devices Inc
文件页数: 39/106页
文件大小: 0K
描述: KIT EVAL EZ BOARD ADSP-2148X
标准包装: 1
系列: SHARC®
类型: DSP
适用于相关产品: ADSP-2148x
所含物品: 板,线缆,调试程序,电源,软件
Using ADSP-21489 EZ-Board
UART Interface
The ADSP-21489 processor features a built-in universal asynchronous
receiver and transmitter (UART). The UART interface supports full
RS-232 functionality via the Analog Devices 3.3V ADM3202 line driver
and receiver ( U8 ). The UART signals are available on the EZ-Board via a
DIP switch ( SW14 ). The UART signals routed through the DIP switch can
be disconnected from the respective DPI interface and used on the expan-
sion II interface. The following DPI pins are used for the RS-232
interface.
? DPI pin 9 ( DPI_P9 ) as UART_TX
? DPI pin 10 ( DPI_P10 ) as UART_RX
? DPI pin 11 ( DPI_P11 ) as UART_RTS
? DPI pin 12 ( DPI_P12 ) as UART_CTS
Example programs are included in the EZ-Board installation directory to
demonstrate UART and RS-232 operations.
For more information about the UART interface, refer to the
ADSP-214xx SHARC Processor Hardware Reference .
LEDs and Push Buttons
The EZ-Board has eight general-purpose user LEDs connected directly to
the processor, one LED connected to the temperature sensing monitor
(ADM1032), one EZ-Board power LED, and one board reset LED. The
EZ-board also has five push buttons: four general-purpose push buttons
connected directly to the processor and one push button for a board reset.
Table 1-3 summarizes LED connections to the processor. To use the
LEDs connected to DAI or DPI, configure the respective registers of the
ADSP-21489 EZ-Board Evaluation System Manual
1-17
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