VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices

ADSP-2106x/21160 Processor Booting
After modifying the boot kernel source file, rebuild the boot kernel (.dxe)
file. Do this from the VisualDSP++ IDDE (refer to VisualDSP++ online
Help for details), or rebuild the boot kernel file from the command line.
� When
using VisualDSP++, specify the name of the modified kernel
executable in the Kernel file box on the Kernel page of the Project
Options dialog box.
If you modify the boot kernel for EPROM, host, or link boot modes,
ensure that the seg_ldr memory segment is defined in the .ldf file. Refer
to the source of the segment in the .ldf file located in the …\21k\ldr\ or
(…\211xx\ldr\) directory.
The loader utility generates a warning when vector address (0x20004 for
ADSP-21060/61/62 processors, 0x40004 for ADSP-21160 processors, or
0x8004 for ADSP-21065L processors) does not contain NOP or IDLE.
Because the boot kernel uses this address for the first location of the reset
vector during the boot-load process, avoid placing code at this address.
When using any of the processor’s power-up boot modes, ensure that the
address does not contain a critical instruction. Because the address is not
executed during the booting sequence, place a NOP or IDLE instruction at
this location.
The boot kernel project can be rebuilt from the VisualDSP++ IDDE. The
command-line can also be used to rebuild various default boot kernels for
ADSP-2106x/21160 processors.
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