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Add pragma to ensure neopixel_write is always -Os

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Scott Shawcroft 2018-11-13 10:56:00 -08:00 committed by GitHub
parent ed9db80760
commit a3a690dc01
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1 changed files with 7 additions and 0 deletions
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7
ports/atmel-samd/common-hal/neopixel_write/__init__.c
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@ -48,6 +48,11 @@
} }
#endif #endif
// Ensure this code is compiled with -Os. Any other optimization level may change the timing of it
// and break neopixels.
#pragma GCC push_options
#pragma GCC optimize ("Os")
uint64_t next_start_tick_ms = 0; uint64_t next_start_tick_ms = 0;
uint32_t next_start_tick_us = 1000; uint32_t next_start_tick_us = 1000;
@ -183,3 +188,5 @@ void common_hal_neopixel_write(const digitalio_digitalinout_obj_t* digitalinout,
mp_hal_enable_all_interrupts(); mp_hal_enable_all_interrupts();
} }
#pragma GCC pop_options