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avr: Remove F_CPU compile time definition

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Directly use the Kconfig defined CONFIG_CLOCK_FREQ in the code and
avoid defining F_CPU.  Also, remove the unnecessary O2 option - that
is already the default from the main makefile.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-03-28 12:11:02 -04:00
parent 31e78c90e2
commit 18f4d343f5
3 changed files with 7 additions and 5 deletions
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4
src/avr/timer.c
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@ -16,13 +16,13 @@
* Low level timer code
****************************************************************/
DECL_CONSTANT(CLOCK_FREQ, F_CPU);
DECL_CONSTANT(CLOCK_FREQ, CONFIG_CLOCK_FREQ);
// Return the number of clock ticks for a given number of microseconds
uint32_t
timer_from_us(uint32_t us)
{
return us * (F_CPU / 1000000);
return us * (CONFIG_CLOCK_FREQ / 1000000);
}
union u32_u {