4cc21e2f4a
Don't sample the first entry outside the timer as this is a different code path which produces a different offset from the clock tick. Use sys_clock_hw_cycles_per_sec() to be compatible with systems that read their hardware clock frequency at run time. Perform cycle difference computations with uint64_t. If ever the magnitude of the absolute clock cycle values is greater than 52 bits then the cast to a double will actually lose accuracy. Signed-off-by: Nicolas Pitre <npitre@baylibre.com> |
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| .. | ||
| src | ||
| CMakeLists.txt | ||
| Kconfig | ||
| prj.conf | ||
| README | ||
| testcase.yaml | ||
# Test a timer implementations variance and long term drift Records and calculates statistical values against a timer validating that. 1. Timer variance and standard deviation is below defined acceptable values. 2. Periodic timers do not drift in either direction from expected total time. Timers are meant to be precise and accurate. This test validates an implementation is both.