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stmhal: Add documentation for RTC class.

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This commit is contained in:
Damien George 2014-05-03 12:40:53 +01:00
parent 7a14022604
commit 451f78d156
1 changed files with 32 additions and 3 deletions
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35
stmhal/rtc.c
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@ -9,6 +9,12 @@
#include "runtime.h" #include "runtime.h"
#include "rtc.h" #include "rtc.h"
/// \moduleref pyb
/// \class RTC - real time clock
///
/// The RTC is and independent clock that keeps track of the date
/// and time.
RTC_HandleTypeDef RTCHandle; RTC_HandleTypeDef RTCHandle;
// rtc_info indicates various things about RTC startup // rtc_info indicates various things about RTC startup
@ -159,13 +165,13 @@ void rtc_init(void) {
// fresh reset; configure RTC Calendar // fresh reset; configure RTC Calendar
RTC_CalendarConfig(); RTC_CalendarConfig();
} else { } else {
// RTC was previously set, so leave it alon // RTC was previously set, so leave it alone
if(__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET) { if(__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET) {
// power on reset occured // power on reset occurred
rtc_info |= 0x10000; rtc_info |= 0x10000;
} }
if(__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET) { if(__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET) {
// external reset occured // external reset occurred
rtc_info |= 0x20000; rtc_info |= 0x20000;
} }
// Clear source Reset Flag // Clear source Reset Flag
@ -213,6 +219,8 @@ typedef struct _pyb_rtc_obj_t {
STATIC const pyb_rtc_obj_t pyb_rtc_obj = {{&pyb_rtc_type}}; STATIC const pyb_rtc_obj_t pyb_rtc_obj = {{&pyb_rtc_type}};
/// \classmethod \constructor()
/// Create an RTC object.
STATIC mp_obj_t pyb_rtc_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) { STATIC mp_obj_t pyb_rtc_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
// check arguments // check arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false); mp_arg_check_num(n_args, n_kw, 0, 0, false);
@ -221,11 +229,32 @@ STATIC mp_obj_t pyb_rtc_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const
return (mp_obj_t)&pyb_rtc_obj; return (mp_obj_t)&pyb_rtc_obj;
} }
/// \method info()
/// Get information about the startup time and reset source.
///
/// - The lower 0xffff are the number of milliseconds the RTC took to
/// start up.
/// - Bit 0x10000 is set if a power-on reset occurred.
/// - Bit 0x20000 is set if an external reset occurred
mp_obj_t pyb_rtc_info(mp_obj_t self_in) { mp_obj_t pyb_rtc_info(mp_obj_t self_in) {
return mp_obj_new_int(rtc_info); return mp_obj_new_int(rtc_info);
} }
MP_DEFINE_CONST_FUN_OBJ_1(pyb_rtc_info_obj, pyb_rtc_info); MP_DEFINE_CONST_FUN_OBJ_1(pyb_rtc_info_obj, pyb_rtc_info);
/// \method datetime([datetimetuple])
/// Get or set the date and time of the RTC.
///
/// With no arguments, this method returns an 8-tuple with the current
/// date and time. With 1 argument (being an 8-tuple) it sets the date
/// and time.
///
/// The 8-tuple has the following format:
///
/// (year, month, day, weekday, hours, minutes, seconds, subseconds)
///
/// `weekday` is 1-7 for Monday through Sunday.
///
/// `subseconds` is 0-59.
mp_obj_t pyb_rtc_datetime(uint n_args, const mp_obj_t *args) { mp_obj_t pyb_rtc_datetime(uint n_args, const mp_obj_t *args) {
if (n_args == 1) { if (n_args == 1) {
// get date and time // get date and time