application: add option RTC with date time function command
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@ -15,13 +15,15 @@
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/** STM32F1 application example
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* @file application.c
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* @author King Kévin <kingkevin@cuvoodoo.info>
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* @date 2016-2018
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* @date 2016-2019
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*/
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/* standard libraries */
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#include <stdint.h> // standard integer types
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#include <stdlib.h> // standard utilities
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#include <string.h> // string utilities
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#include <time.h> // date/time utilities
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#include <ctype.h> // utilities to check chars
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/* STM32 (including CM3) libraries */
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#include <libopencmsis/core_cm3.h> // Cortex M3 utilities
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@ -47,6 +49,13 @@
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#include "menu.h" // menu utilities
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#define WATCHDOG_PERIOD 10000 /**< watchdog period in ms */
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/** set to 0 if the RTC is reset when the board is powered on, only indicates the uptime
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* set to 1 if VBAT can keep the RTC running when the board is unpowered, indicating the date and time
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*/
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#define RTC_DATE_TIME 1
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/** RTC time when device is started */
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static time_t time_start = 0;
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/** @defgroup main_flags flag set in interrupts to be processed in main task
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* @{
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@ -91,6 +100,13 @@ static void command_version(void* argument);
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*/
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static void command_uptime(void* argument);
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#if RTC_DATE_TIME
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/** show date and time
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* @param[in] argument date and time to set
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*/
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static void command_datetime(void* argument);
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#endif
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/** reset board
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* @param[in] argument no argument required
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*/
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@ -127,6 +143,16 @@ static const struct menu_command_t menu_commands[] = {
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.argument_description = NULL,
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.command_handler = &command_uptime,
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},
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#if RTC_DATE_TIME
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{
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.shortcut = 'd',
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.name = "date",
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.command_description = "show date and time",
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.argument = MENU_ARGUMENT_STRING,
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.argument_description = "[YYYY-MM-DD HH:MM:SS]",
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.command_handler = &command_datetime,
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},
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#endif
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{
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.shortcut = 'r',
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.name = "reset",
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@ -200,10 +226,43 @@ static void command_version(void* argument)
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static void command_uptime(void* argument)
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{
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(void)argument; // we won't use the argument
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uint32_t uptime = rtc_get_counter_val(); // get time from internal RTC
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printf("uptime: %u.%02u:%02u:%02u\n", uptime/(24*60*60), (uptime/(60*60))%24, (uptime/60)%60, uptime%60);
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uint32_t uptime = rtc_get_counter_val() - time_start; // get time from internal RTC
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printf("uptime: %u.%02u:%02u:%02u\n", uptime / (24 * 60 * 60), (uptime / (60 * 60)) % 24, (uptime / 60) % 60, uptime % 60);
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}
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#if RTC_DATE_TIME
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static void command_datetime(void* argument)
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{
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char* datetime = (char*)argument; // argument is optional date time
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if (NULL == argument) { // no date and time provided, just show the current day and time
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time_t time_rtc = rtc_get_counter_val(); // get time from internal RTC
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struct tm* time_tm = localtime(&time_rtc); // convert time
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printf("date: %d-%02d-%02d %02d:%02d:%02d\n", 1900 + time_tm->tm_year, time_tm->tm_mon, time_tm->tm_mday, time_tm->tm_hour, time_tm->tm_min, time_tm->tm_sec);
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} else { // date and time provided, set it
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const char* malformed = "date and time malformed, expecting YYYY-MM-DD HH:MM:SS\n";
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struct tm time_tm; // to store the parsed date time
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if (strlen(datetime) != (4 + 1 + 2 + 1 + 2) + 1 + (2 + 1 + 2 + 1 + 2)) { // verify date/time is long enough
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printf(malformed);
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return;
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}
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if (!(isdigit((int8_t)datetime[0]) && isdigit((int8_t)datetime[1]) && isdigit((int8_t)datetime[2]) && isdigit((int8_t)datetime[3]) && '-' == datetime[4] && isdigit((int8_t)datetime[5]) && isdigit((int8_t)datetime[6]) && '-' == datetime[7] && isdigit((int8_t)datetime[8]) && isdigit((int8_t)datetime[9]) && ' ' == datetime[10] && isdigit((int8_t)datetime[11]) && isdigit((int8_t)datetime[12]) && ':' == datetime[13] && isdigit((int8_t)datetime[14]) && isdigit((int8_t)datetime[15]) && ':' == datetime[16] && isdigit((int8_t)datetime[17]) && isdigit((int8_t)datetime[18]))) { // verify format (good enough to not fail parsing)
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printf(malformed);
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return;
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}
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time_tm.tm_year = strtol(&datetime[0], NULL, 10) - 1900; // parse year
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time_tm.tm_mon = strtol(&datetime[5], NULL, 10); // parse month
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time_tm.tm_mday = strtol(&datetime[8], NULL, 10); // parse day
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time_tm.tm_hour = strtol(&datetime[11], NULL, 10); // parse hour
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time_tm.tm_min = strtol(&datetime[14], NULL, 10); // parse minutes
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time_tm.tm_sec = strtol(&datetime[17], NULL, 10); // parse seconds
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time_t time_rtc = mktime(&time_tm); // get back seconds
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time_start = time_rtc + (rtc_get_counter_val() - time_start); // update uptime with current date
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rtc_set_counter_val(time_rtc); // save date/time to internal RTC
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printf("date and time saved: %d-%02d-%02d %02d:%02d:%02d\n", 1900 + time_tm.tm_year, time_tm.tm_mon, time_tm.tm_mday, time_tm.tm_hour, time_tm.tm_min, time_tm.tm_sec);
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}
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}
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#endif
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static void command_reset(void* argument)
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{
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(void)argument; // we won't use the argument
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@ -291,6 +350,7 @@ void main(void)
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#endif
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rtc_interrupt_enable(RTC_SEC); // enable RTC interrupt on "seconds"
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nvic_enable_irq(NVIC_RTC_IRQ); // allow the RTC to interrupt
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time_start = rtc_get_counter_val(); // get start time from internal RTC
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printf("OK\n");
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// setup terminal
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