Demonstration Applications; Organizer; Figure 17. Organizer Menu; Figure 18. Setting The Time And Date - ST STM32303C-EVAL User Manual

UM1590
2.4

Demonstration applications

The following section provides a detailed description of each part of the demonstration.
Note: In the demonstration, the core runs at HCLK = 72 MHz.
Four LEDs, LD1, LD2, LD3 and LD4, flash throughout the demonstration at a frequency
depending on the core clock.
2.4.1

Organizer

The STM32F30X/31x features a real-time clock (RTC) which is an independent BCD
timer/counter. The RTC provides a time-of-day clock/calendar, two programmable alarm
interrupts, and a periodic programmable wakeup flag with interrupt capability.
This submenu is used to configure/show the time and date, run stop-watch and lap timer
subdemonstration and generate alarm.

Figure 17. Organizer menu

In any submenu, if the time and date parameters have not yet been configured, the
message shown in

Figure 18. Setting the time and date

Figure 17
Figure 18 is displayed on the LCD screen.
Doc ID 023892 Rev 1
Running the demonstration
shows the organizer menu.
23/65