tests/periph_timer_periodic: Use fmt for in-irq printing#15061
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kaspar030 merged 1 commit intoSep 23, 2020
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This replaces the printf statement in the timer callback with fmt-based printing and a single puts. This is less heavy on the stack usage than printf, making this test a bit easier to digest on the smaller platforms.
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ACK. one less printf in ISR.
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Contribution description
This replaces the printf statement in the timer callback with fmt-based
printing and a single puts. This is less heavy on the stack usage than
printf, making this test a bit easier to digest on the smaller
platforms.
Flash size increases by almost 200 bytes on the samr21-xpro with LLVM because of the added fmt module.
Testing procedure
The printed test output should remain the same.
Issues/PRs references
reduces the stack size enough to let #14557 pass this test with LLVM on the samr21-xpro 😄