HP EZ-KIT Instrukcja Użytkownika Pobierz pdf (Strona 37)

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

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HP EZ-KIT Instrukcja Użytkownika Strona 37