#pragma once #include typedef void (*systick_cb_t)(void); void set_systick(uint64_t systick_value); uint64_t get_systick(); int systick_interrupt(); #define On_SysTick() \ static void __local_on_systick__(void); \ __attribute__(( \ __section__(".systick_callbacks"))) static volatile systick_cb_t \ __FILE__##__LINE__ = __local_on_systick__; \ static void __local_on_systick__()