VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices

ADSP-21161 Processor Booting
Table 4-8. ADSP-21161N Processor Block Tags (Cont’d)
Tag Number Block Type Tag Number Block Type
0x0007 zero pm16 0x0015 init pm32 ext
0x0008 zero pm32 0x0016 init pm48 ext
0x0009 zero pm40 0x0017 zero pm8 ext
0x000A zero pm48 0x0018 zero pm16 ext
0x000B init pm16 0x0019 zero pm32 ext
0x000C init pm32 0x001A zero pm48 ext
0x0011 zero pm64
Boot Kernel Modification and Loader Issues
Some systems require boot kernel customization. In addition, the operation
of other tools (such as the C/C++ compiler) is influenced by whether
the loader utility is used.
If you do not specify a boot kernel file via the Load page of the Project
Options dialog box in VisualDSP++ (or via the -l kernelfile command-line
switch), the loader utility places a default boot kernel in the loader output
file (see “ADSP-21161 Processor Boot Kernels” on page 4-16) based on
the specified boot mode.
Rebuilding a Boot Kernel File
If you modify the boot kernel source (.asm) file by inserting correct values
for your system, you must rebuild the boot kernel (.dxe) before generating
the boot-loadable (.ldr) file. The boot kernel source file contains default
values for the SYSCON register. The WAIT, SDCTL, and SDRDIV initialization
code is in the boot kernel file comments.
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