diff options
| -rw-r--r-- | ports/atmel-samd/common-hal/neopixel_write/__init__.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ports/atmel-samd/common-hal/neopixel_write/__init__.c b/ports/atmel-samd/common-hal/neopixel_write/__init__.c index b30ad47d4..57e963c91 100644 --- a/ports/atmel-samd/common-hal/neopixel_write/__init__.c +++ b/ports/atmel-samd/common-hal/neopixel_write/__init__.c @@ -48,6 +48,11 @@ } #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; 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(); } + +#pragma GCC pop_options |