User Manual Part 5

User Guide to Q4000/QPRO
Document Number 1135-4713 Rev G
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12.4.5 DemoAppFFS
The FFS example demonstrates use of the Flash File System (FFS). The application gets a GPS
position each time it starts, and creates a trail of the last positions which is stored in the FFS, so
that the trail of positions is retained over power cycles. The FFS functionality demonstrated is
fairly basic. Note that this application is network-specific.
1. Select the DemoAppFFS Workspace from the drop-down list at the top, left-hand corner of
the IAR IDE screen. Open the APL.c file, as shown below:
Figure 12-51: DemoAppFFS - Selecting the Workspace
2. Now build, load and execute DemoAppFFS. The instructions for building, loading and
executing the code are the same as in Section 12, except that after building the application,
the executable bin file is: …/DemoAppFFS/exe/xxx-DemoAppFFS.bin .
3. After startup, check the Logger output for the line APL DEMO: FFS. This indicates that the
correct DemoApp is running.