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Getting Started with ADSP-BF548 EZ-KIT Lite 5-1
5 USING ADSP-BF548 EZ-KIT
LITE HARD DISK AND LCD
SCREEN
In this chapter we will use a major new component of the system services
library (SSL)—the file system service (FSS)—in addition to one of the
supplied device drivers to create a program that reads a bitmap image from
the EZ-KIT Lite hard disk and displays the image on the LCD screen.
L
In order to run this program successfully, first run “Example 5:
USB Project” on page 4-3 and follow the instructions to copy the
folder containing the bitmap file from your PC to the EZ-KIT Lite
hard disk.
The concept introduced in this exercise is that of pluggable or stackable
components:
• The file system service can be plugged into the C I/O library in
place of the standard, emulator-based facilities
• Alternative device drivers can be plugged into the file system ser-
vice to target different physical devices and to support different file
system organizations
• The LCD driver is stacked on top of a driver for its data source—
one of the ADSP-BF548 processor’s enhanced parallel peripheral
interfaces (EPPIs)
The chapter includes the following sections.
• “SSL File System Service” on page 5-2
• “Sharp LQ043T1DG01 LCD Device Driver” on page 5-3