UM1510 datasheet(21/69 Pages) STMICROELECTRONICS

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UM1510

Running the demonstration

Doc ID 022713 Rev 1

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2.3.4

Internal memory size

Figure 14.

Internal Flash memory organization

2.3.5

External memory organization

The STM32L152D-EVAL demo is based on an embedded free FAT file system, FatFs. The

file system is needed to read all media information from the on-board MicroSD card

memory. The SD card memory is organized in three subdirectories:

●

STFILES: this directory contains all the required demo media files (icons, waves and

slides). User files located in this folder cannot be handled by demo; only default files

are managed.

●

USER: this is a user folder. The user can add his/her own files here to be played inside

the demo menus (pictures and waves). This folder is used only by the Image Viewer

and Wave Player submenus. For more details on the various files properties, please

refer to Section 2.4.3: Image Viewer submenu and Section 2.4.4: Wave Player

submenu.

●

REC: this directory contains the voice recorded wave file “Rec_wave.wav“.(This Folder

will be created when the Voice Recording application is run).

Note:

The STFILES directory and its internal files are mandatory for demo startup. FatFs is a

generic FAT file system module for small embedded systems. The FatFs is written in

compliance with ANSI C and completely separated from the disk I/O layer. For more details,

refer to the following link: http://elm-chan.org/fsw/ff/00index_e.htmltml.

EXTI line 17

RTC Alarm (interrupt mode, rising edge)

EXTI line 20

RTC wake up (interrupt mode, rising edge)

EXTI line 22

Comparator (interrupt mode, rising and falling edge)

Table 3.

STM32L152ZD demo external interrupts (continued)

External interrupts

Used for

S T M 3 2L1 52 Z D T 6

0x 08 00 000 0

0 x 0 8 0 5 FFFF

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