/**
* @brief Low level HAL driver initialization.
*/
void hal_lld_init(void) {
struct sigaction sigtick = {
.sa_handler = port_tick_signal_handler,
};
if (sigaction(PORT_TIMER_SIGNAL, &sigtick, NULL) < 0)
port_halt();
const suseconds_t usecs = 1000000 / CH_FREQUENCY;
struct itimerval itimer, oitimer;
/* Initialize the structure with the current timer information. */
if (getitimer(PORT_TIMER_TYPE, &itimer) < 0)
port_halt();
/* Set the interval between timer events. */
itimer.it_interval.tv_sec = usecs / 1000000;
itimer.it_interval.tv_usec = usecs % 1000000;
/* Set the current count-down. */
itimer.it_value.tv_sec = usecs / 1000000;
itimer.it_value.tv_usec = usecs % 1000000;
/* Set-up the timer interrupt. */
if (setitimer(PORT_TIMER_TYPE, &itimer, &oitimer) < 0)
port_halt();
}
// called on I2C communication failures with the DAC
uint32_t Codec_TIMEOUT_UserCallback(void)
{
port_halt();
return 0;
}
