21.8.1.1.2 Code

Copy-paste the following setup code to your application:

void configure_extosc32k(void)
{
    struct system_clock_source_xosc32k_config config_ext32k;
    system_clock_source_xosc32k_get_config_defaults(&config_ext32k);

    config_ext32k.startup_time = SYSTEM_XOSC32K_STARTUP_4096;

    system_clock_source_xosc32k_set_config(&config_ext32k);
}

#if (!SAMC21)
void configure_dfll_open_loop(void)
{
    struct system_clock_source_dfll_config config_dfll;
    system_clock_source_dfll_get_config_defaults(&config_dfll);

    system_clock_source_dfll_set_config(&config_dfll);
}
#endif