/**
* \brief Configure the RTT to generate an alarm at the given time.
* alarm happens when CRTV value equals ALMV+1, so RTT_AR should be alarmtime - 1.
* if you want to get alarm when rtt hit 0 , ALMV should be set to 0xFFFFFFFF.
*
* \param p_rtt Pointer to an RTT instance.
* \param ul_alarm_time Alarm time,Alarm time = ALMV + 1.
*
* \retval 0 Configuration is done.
*/
uint32_t rtt_write_alarm_time(Rtt *p_rtt, uint32_t ul_alarm_time)
{
uint32_t flag;
flag = p_rtt->RTT_MR & RTT_MR_ALMIEN;
rtt_disable_interrupt(RTT, RTT_MR_ALMIEN);
/**
* Alarm time = ALMV + 1,If the incoming parameter
* is 0, the ALMV is set to 0xFFFFFFFF.
*/
if(ul_alarm_time == 0) {
p_rtt->RTT_AR = 0xFFFFFFFF;
}
else {
p_rtt->RTT_AR = ul_alarm_time - 1;
}
if (flag) {
rtt_enable_interrupt(RTT, RTT_MR_ALMIEN);
}
return 0;
}
void terminate(const char *s)
{
rtc_disable_interrupt(RTC, RTC_IDR_ALRDIS);//disabilito interrupt RTC
rtt_disable_interrupt(RTT, RTT_MR_RTTINCIEN);//disabilito interrupt RTT
afec_disable(AFEC0);//disabilito convertitore A/D
dacc_disable_channel(DACC_BASE, DACC_CHANNEL);//disabilito convertitore D/A
write_record_syslog(s);
write_record_syslog("Programma terminato!");
close_logfile_SD(); //chiudo logfile
f_close(&syslog_file_object); //chiudo file syslog
dac_out=0;//azzero tensione in uscita
ioport_set_pin_level(LED_SD_USE, IOPORT_PIN_LEVEL_HIGH); //spengo led SD_USE
ioport_set_pin_level(LED_SYSTEM_READY, IOPORT_PIN_LEVEL_HIGH); //spengo led SD_PRESENT
ioport_set_pin_level(LED_ERROR, IOPORT_PIN_LEVEL_LOW); //accendo led ERROR
exit(EXIT_SUCCESS);
}
/**
* \brief Configure the RTT to generate an alarm at the given time.
*
* \param p_rtt Pointer to an RTT instance.
* \param ul_alarm_time Alarm time.
*
* \retval 0 Configuration is done.
* \retval 1 Parameter error.
*/
uint32_t rtt_write_alarm_time(Rtt *p_rtt, uint32_t ul_alarm_time)
{
uint32_t flag;
if (ul_alarm_time == 0) {
return 1;
}
flag = p_rtt->RTT_MR & RTT_MR_ALMIEN;
rtt_disable_interrupt(RTT, RTT_MR_ALMIEN);
/* Alarm time = ALMV + 1 */
p_rtt->RTT_AR = ul_alarm_time - 1;
if (flag) {
rtt_enable_interrupt(RTT, RTT_MR_ALMIEN);
}
return 0;
}
