---------------------------------------------------------------------
void LED2Callback(uintptr_t context)
{
    LED2_Toggle();
}

void LED3Callback(uintptr_t context)
{
    LED3_Toggle();
}

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    SYS_TIME_CallbackRegisterMS(LED2Callback, 0, 500, SYS_TIME_PERIODIC);
    SYS_TIME_CallbackRegisterMS(LED3Callback, 0, 250, SYS_TIME_PERIODIC);

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