67 uint16_t duration_msec,
71 uint32_t n,k,period_usec,dauer_usec;
73 period_usec = 1000000L / freq;
74 dauer_usec = 1000 * (uint32_t) duration_msec;
75 k = dauer_usec / period_usec;
80 wait_tics = 18000 / freq;
84 for (n = 0; n < k; n++)
94 #define BEEP sound (1000, 100, 255)