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Processor Booting
The complete time for booting can be estimated by adding all 5 timing
windows. Loading Kernel and Loading IVT both have the same size,
however the default access time (wait states) for the IVT loading can be
changed in the kernel by the user.
Definition of Terms
Booting
When a processor is initially powered up, its internal SRAM and many
other registers are undefined. Before actual program execution can begin,
the application must be loaded from an external non-volatile source such
as flash memory or a host processor. This process is known as bootstrap
loading or booting and is automatically performed by the processor after
power-up or after a software reset.
Boot Compression
Boot compression is only supported by software. The loader utility takes
two steps to compress a boot stream.
1. The loader generates the boot stream in the conventional way
(builds data blocks).
2. The loader then applies compression to the boot stream.
Decompression is the reverse of this process.
1. The loader utility decompresses the compressed stream.
2. The loader then loads code and data into memory segments in the
conventional way.
For more information on elfloader compression refer to the VisualDSP
tools documentation.
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www.BDTIC.com/ADI
ADSP-2136x SHARC Processor Hardware Reference
for the ADSP-21362/3/4/5/6 Processors
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