Memory Checks; Uart Checks - Analog Devices ADSP-2181 Manual

Standard Operations
Table 2-3. Post Routines (Cont'd)
Routine
AD1847 Check
Initialization

Memory Checks

The monitor program performs some standard memory checks on
EPROM and internal RAM. The EPROM 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 Checks

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
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.
On power up, the EZ-KIT Lite board defaults to a baud rate of 9600 baud
with 8 data bits, 1 stop bit, and no parity. To change this rate, wait for the
routine to complete and then use the Settings, Baud Rate command
POST
in the debugger. Note that setting the baud rate to a lower number can
significantly slow the board's response to all debug activities.
Different baud rates depend upon your application's type: for real-time
interrupt driven programs, a lower baud rate setting slows performance,
but the timer interrupt occurs less frequently. This gives your program a
larger share of the processor's resources.
2-6
Power-On-Reset?
Yes
Yes
POST
ADSP-2181 EZ-KIT Lite Evaluation System Manual
Reset During Operation?
No
Yes
is complete. In this test, the host