void CCommandProcessor::DisplayResetCause ( void )
{
PrintStr( "Reset cause: " );
const uint32_t resetCause = rstc_get_reset_cause( RSTC );
switch ( resetCause )
{
case RSTC_GENERAL_RESET:
PrintStr( "General" );
break;
case RSTC_BACKUP_RESET:
PrintStr( "Backup" );
break;
case RSTC_WATCHDOG_RESET:
PrintStr( "Watchdog" );
break;
case RSTC_SOFTWARE_RESET:
PrintStr( "Software" );
break;
case RSTC_USER_RESET:
PrintStr( "User" );
break;
default:
PrintStr( "<unknown>" );
assert( false );
break;
}
PrintStr( EOL );
}
/**
* \brief Application entry point for RTC tamper example.
*
* \return Unused (ANSI-C compatibility).
*/
int main(void)
{
uint32_t ul_read_value[8] = {0, 0 ,0, 0, 0, 0, 0, 0};
uint32_t ul_hour0, ul_minute0, ul_second0;
uint32_t ul_year0, ul_month0, ul_day0, ul_week0;
uint32_t ul_hour1, ul_minute1, ul_second1;
uint32_t ul_year1, ul_month1, ul_day1, ul_week1;
uint32_t tmp_src0, tmp_src1, tmp_cnt;
uint8_t uc_key;
/* Initialize the SAM system */
sysclk_init();
board_init();
/* Initialize the console uart */
configure_console();
/* Output example information */
puts(STRING_HEADER);
/* Default RTC configuration, 24-hour mode */
rtc_set_hour_mode(RTC, 0);
rtc_set_waveform(RTC, RTC_OUT_CHN, RTC_OUT_SRC);
if(rstc_get_reset_cause(RSTC) == RSTC_SR_RSTTYP_BackupReset) {
/* Read the data from GPBR0 ~ 7 */
ul_read_value[0] = gpbr_read(GPBR0);
ul_read_value[1] = gpbr_read(GPBR1);
ul_read_value[2] = gpbr_read(GPBR2);
ul_read_value[3] = gpbr_read(GPBR3);
ul_read_value[4] = gpbr_read(GPBR4);
ul_read_value[5] = gpbr_read(GPBR5);
ul_read_value[6] = gpbr_read(GPBR6);
ul_read_value[7] = gpbr_read(GPBR7);
if((ul_read_value[0] == 0) &&
(ul_read_value[1] == 0) &&
(ul_read_value[2] == 0) &&
(ul_read_value[3] == 0) &&
(ul_read_value[4] == 0) &&
(ul_read_value[5] == 0) &&
(ul_read_value[6] == 0) &&
(ul_read_value[7] == 0)) {
printf("The backup register is cleared when tamper event happen!\r\n");
} else {
printf("The backup register is not cleared when tamper event happen!\r\n");
}
/* Retrieve tamper date and time */
rtc_get_tamper_time(RTC, &ul_hour0, &ul_minute0, &ul_second0, 0);
rtc_get_tamper_date(RTC, &ul_year0, &ul_month0, &ul_day0, &ul_week0, 0);
rtc_get_tamper_time(RTC, &ul_hour1, &ul_minute1, &ul_second1, 1);
rtc_get_tamper_date(RTC, &ul_year1, &ul_month1, &ul_day1, &ul_week1, 1);
tmp_cnt = rtc_get_tamper_event_counter(RTC);
tmp_src0 = rtc_get_tamper_source(RTC, 0);
tmp_src1 = rtc_get_tamper_source(RTC, 1);
printf("The first tamper event TMP%u happen in %02u:%02u:%02u,%02u/%02u/%04u\r\n",
(unsigned int)tmp_src0, (unsigned int)ul_hour0, (unsigned int)ul_minute0,
(unsigned int)ul_second0, (unsigned int)ul_month0, (unsigned int)ul_day0,
(unsigned int)ul_year0);
printf("The last tamper event TMP%u happen in %02u:%02u:%02u,%02u/%02u/%04u\r\n",
(unsigned int)tmp_src1, (unsigned int)ul_hour1, (unsigned int)ul_minute1,
(unsigned int)ul_second1, (unsigned int)ul_month1, (unsigned int)ul_day1,
(unsigned int)ul_year1);
printf("The tamper event counter is %u \r\n", (unsigned int)tmp_cnt);
}
printf("Press any key to Enter Backup Mode!\r\n");
while (uart_read(CONSOLE_UART, &uc_key));
/* Write the data to the backup register GPBR0 ~ 7 */
gpbr_write(GPBR0, GPBR_CONST_DATA);
gpbr_write(GPBR1, GPBR_CONST_DATA);
gpbr_write(GPBR2, GPBR_CONST_DATA);
gpbr_write(GPBR3, GPBR_CONST_DATA);
gpbr_write(GPBR4, GPBR_CONST_DATA);
gpbr_write(GPBR5, GPBR_CONST_DATA);
gpbr_write(GPBR6, GPBR_CONST_DATA);
gpbr_write(GPBR7, GPBR_CONST_DATA);
/* Enable TMP0 and TMP2 low power debouncer and clear GPBR when event happen */
supc_set_wakeup_mode(SUPC, SUPC_WUMR_LPDBCEN0_ENABLE |
SUPC_WUMR_LPDBCCLR_ENABLE | SUPC_WUMR_LPDBCEN2_ENABLE |
SUPC_WUMR_LPDBC_2_RTCOUT0);
/* Enable TMP0 and TMP2 wake-up input and set input type*/
supc_set_wakeup_inputs(SUPC, SUPC_WUIR_WKUPEN0_ENABLE |
SUPC_WUIR_WKUPEN14_ENABLE,
SUPC_WUIR_WKUPT0_LOW | SUPC_WUIR_WKUPT14_LOW);
printf("Enter Backup Mode!\r\n");
printf("Please press button TMP0 or TMP2 to wake up!\r\n\r\n");
/* Ensure TX is done before enter backup mode */
while (!uart_is_tx_empty(CONSOLE_UART)) {
}
/* Enter backup mode */
pmc_enable_backupmode();
while (1) {
}
}
