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Getting Started with ADSP-BF548 EZ-KIT Lite 2-1
2 USING ADSP-BF548 EZ-KIT
LITE TO INVESTIGATE
PERFORMANCE FACTORS
In this chapter, we will benchmark a program, examine memory types,
and look at the effects of enabling a portion of fast internal memory as a
cache for external memory. Finally we will study the processor perfor-
mance in terms of clock speed and voltage trade-offs.
In the exercise, you will learn about the following concepts.
• Benchmarking code with a Blackfin processor’s cycle counter and
real-time clock
• Statistical profiling
• Blackfin processor’s memory hierarchy, cache, and direct memory
placement
• Blackfin processor’s voltage regulator and the processor support
library
The chapter includes the following sections.
• “ADSP-BF548 Processor Memory Hierarchy” on page 2-2
• “Example 2: Benchmarking the Relative Performance of Memo-
ries” on page 2-4
• “Example 3: Using the Blackfin Processor Voltage Regulator” on
page 2-8