VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices
VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices
VisualDSP++ 4.5 Loader and Utilities Manual - Analog Devices
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<strong>Loader</strong> for ADSP-2126x/2136x/2137x SHARC Processors<br />
uses if no other kernel file is specified. If building a custom decompression<br />
kernel, ensure that you use the same decompression function, <strong>and</strong> use the<br />
same compression window size for both the kernel <strong>and</strong> the loader utility.<br />
The default decompression kernel files are stored in the …\2126x\ldr\zlib<br />
<strong>and</strong> …\2136x\ldr\zlib subdirectories of the <strong>VisualDSP++</strong> installation<br />
directory. The loader utility uses the window size of 9 bits to perform the<br />
compression operation. The compression window size can be changed<br />
through the loader property page or the -compressWS # comm<strong>and</strong>-line<br />
switch. The valid range for the window size is from 8 to 15 bits.<br />
ADSP-2126x/2136x/2137x Processor<br />
<strong>Loader</strong> Guide<br />
<strong>Loader</strong> operations depend on the loader options, which control how the<br />
loader utility processes executable files. You select features such as boot<br />
modes, boot kernels, <strong>and</strong> output file formats via the loader options. These<br />
options are specified on the loader utility’s comm<strong>and</strong> line or via the Load<br />
page of the Project Options dialog box in the <strong>VisualDSP++</strong> environment.<br />
The Load page consists of multiple panes. For information specific to the<br />
ADSP-2126x/2136x/2137x processor, refer to the <strong>VisualDSP++</strong> online<br />
help for that processor. When you open the Load page, the default loader<br />
settings for the selected processor are already set. Use the Additional<br />
Options box to enter options that have no dialog box equivalent.<br />
� Option<br />
settings on the Load page correspond to switches displayed<br />
on the comm<strong>and</strong> line.<br />
These sections describe how to produce a bootable loader file (.ldr):<br />
“Using ADSP-2126x/2136x/2137x <strong>Loader</strong> Comm<strong>and</strong> Line” on<br />
page 5-42<br />
“Using <strong>VisualDSP++</strong> Interface (Load Page)” on page 5-49<br />
<strong>VisualDSP++</strong> <strong>4.5</strong> <strong>Loader</strong> <strong>and</strong> <strong>Utilities</strong> <strong>Manual</strong> 5-41
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