Core Hang Conditions - Analog Devices ADSP-21161N EZ-KIT Lite Manual

Table 2-5. On Emulator Exit Options
Option Description
On Emulator Determines the state the DSP is left in when the emulator relinquishes control
Exit of the DSP:
Reset DSP and Run causes the DSP to reset and begin execution from its reset
vector location.
Run from current PC causes the DSP to begin running from its current loca-
tion.
Table 2-6. Other Target Options
Option
Reset before loading exe-
cutable
Verify all writes to target
memory
Reset cycle counters on
run
Manual Extern Mem con-
figuration

Core Hang Conditions

Certain peripheral devices, such as host ports, DMA, and link ports, can
hold off the execution of processor instructions. This is known as a hung
condition and commonly occurs when reading from an empty port or
writing to a full port. If an attempt to halt the processor is made during
one of these conditions, the EZ-KIT Lite may encounter a core hang.
ADSP-21161N EZ-KIT Lite Evaluation System Manual
Description
Resets registers before loading a DSP executable. Clear this option
when DSP registers must not change to their reset values when a file
load occurs.
Validates all memory writes to the DSP. After each write, a read is
performed and the values are checked for a matching condition.
Enable this option during initial program development to locate
and fix initial build problems (such as attempting to load data into
non-existent memory).
Clear this option to increase performance while loading executable
files since VisualDSP++ does not perform the extra reads that are
required to verify each write.
Resets the cycle count registers to zero before a Run command is
issued. Select this option to count the number of cycles executed
between breakpoints in a program.
Disables the automatic configuration of the SDRAM registers (done
through the debugger).
Using EZ-KIT Lite
2-11