CODEWITHSUNDEEP
armbenchmarkingcortex-mbare-metalthumb
Kael
Kael

Reputation: 21

Benchmarks on baremetal systems

I am using the LPC43xx series, which has cortex-m4/m0. This is a bare-metal system. I am new to bare metal programming and I want to make small benchmark programs for performance evaluation. This is a non-cache system. How can I do this ? or Should I try profiling.

Upvotes: 2

Views: 1084

Answers (1)

fghj
fghj

Reputation: 9404

As I know there are three ways to measure code execution time in your case:

  • timers (init timer on frequency which you want, read timer value before and after code execution)

  • gpio (or similar thing) set it to 1 before and to 0 after your code execution, use oscillograph to measure time

  • performance counter embedded into CPU, in your case I think this one relevant: Cycle counter on ARM Cortex M4 (or M3)?

Upvotes: 1

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