Analog Devices ADSP-2189M EZ-KIT Lite, Руководство пользователя, Страница: 30 / 81

Standard Operations
2-6 ADSP-2189M EZ-KIT Lite Evaluation System Manual
least three seconds and then reconnect power. The board automatically
resets (note that all the LEDs light up briefly). You may also reset the
board during operation through the
DEBUG
and
RESET
command in the
debugger. Both types of reset cause the DSP to reset to a known state. At
this point you should reload any programs you were working on.
Table 2-3 summarizes the types of resets.
Memory Checks
The monitor program performs some standard memory checks on Flash
memory and internal SRAM. The Flash memory test consists of verifying
a number in memory. If the monitor code is corrupted, the monitor may
crash before reaching the actual program code.
UART Check and Initialization
The software UART check is done when it attempts to connect to the
EZ-KIT Lite through a Transmitted Loop Back routine. This UART test
is performed by the host after the
POST
is complete. In this test, the host
sends the UART test protocol. This protocol specifies the number of bytes
that are transmitted to the EZ-KIT Lite board and instructs the board to
echo the byte stream back to the host. This test determines whether the
EZ-KIT Lite board is set to the correct baud rate and verifies the external
connections between the board and the host.
Table 2-3. Post Routines
Routine Power-On-Reset Reset During Operation
Flash check Yes No
AD73322 check Yes No
Initializations Yes Yes