diff options
Diffstat (limited to 'testhal/STM32F4xx/RTC/main.c')
| -rw-r--r-- | testhal/STM32F4xx/RTC/main.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/testhal/STM32F4xx/RTC/main.c b/testhal/STM32F4xx/RTC/main.c index f8bd9fa85..675e42b20 100644 --- a/testhal/STM32F4xx/RTC/main.c +++ b/testhal/STM32F4xx/RTC/main.c @@ -23,6 +23,24 @@ #include "ch.h"
#include "hal.h"
+/*===========================================================================*/
+/* Notes. */
+/*===========================================================================*/
+/*
+This structure is used to hold the values representing a calendar time.
+It contains the following members, with the meanings as shown.
+
+int tm_sec seconds after minute [0-61] (61 allows for 2 leap-seconds)
+int tm_min minutes after hour [0-59]
+int tm_hour hours after midnight [0-23]
+int tm_mday day of the month [1-31]
+int tm_mon month of year [0-11]
+int tm_year current year-1900
+int tm_wday days since Sunday [0-6]
+int tm_yday days since January 1st [0-365]
+int tm_isdst daylight savings indicator (1 = yes, 0 = no, -1 = unknown)
+*/
+
RTCTime timespec;
RTCAlarm alarmspec;
RTCWakeup wakeupspec;
@@ -78,12 +96,12 @@ static const EXTConfig extcfg = { {EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
- {EXT_CH_MODE_RISING_EDGE | EXT_CH_MODE_AUTOSTART, exti_rtcalarm_cb},// RTC alarms
+ {EXT_CH_MODE_RISING_EDGE | EXT_CH_MODE_AUTOSTART, exti_rtcalarm_cb},/* RTC alarms */
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
- {EXT_CH_MODE_DISABLED, NULL},// timestamp
- {EXT_CH_MODE_RISING_EDGE| EXT_CH_MODE_AUTOSTART, exti_rtcwakeup_cb},// wakeup
+ {EXT_CH_MODE_DISABLED, NULL},/* timestamp */
+ {EXT_CH_MODE_RISING_EDGE| EXT_CH_MODE_AUTOSTART, exti_rtcwakeup_cb},/* wakeup */
},
EXT_MODE_EXTI(
0,
@@ -101,7 +119,7 @@ static const EXTConfig extcfg = { 0,
0,
0,
- 0)//15
+ 0)/* 15 */
};
/**
@@ -126,7 +144,7 @@ void bcd2tm(struct tm *timp, uint32_t tv_time, uint32_t tv_date){ * Convert from classical format to STM32 BCD
*/
void tm2bcd(struct tm *timp, RTCTime *timespec){
- uint32_t v = 0; // temporal variable
+ uint32_t v = 0;
timespec->tv_date = 0;
timespec->tv_time = 0;
@@ -164,8 +182,8 @@ int main(void){ extStart(&EXTD1, &extcfg);
/* tune wakeup callback */
- wakeupspec.wakeup = ((uint32_t)4) << 16; // select 1 Hz clock source
- wakeupspec.wakeup |= 3; // set counter value to 3. Period will be 3+1 seconds.
+ wakeupspec.wakeup = ((uint32_t)4) << 16; /* select 1 Hz clock source */
+ wakeupspec.wakeup |= 3; /* set counter value to 3. Period will be 3+1 seconds. */
rtcSetWakeup(&RTCD1, &wakeupspec);
/* enable wakeup callback */
@@ -177,7 +195,7 @@ int main(void){ bcd2tm(&timp, timespec.tv_time, timespec.tv_date);
unix_time = mktime(&timp);
- if (unix_time == -1){// incorrect time in RTC cell
+ if (unix_time == -1){/* incorrect time in RTC cell */
unix_time = 1000000000;
}
/* set correct time */
|