UM1510 datasheet(32/69 Pages) STMICROELECTRONICS

32 / 69 page

Running the demonstration

UM1510

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Doc ID 022713 Rev 1

Figure 33.

STM32 Image Viewer Listbox

When Image Viewer is selected, the corresponding image is displayed and then the user

can use RIGHT and LEFT push-buttons to go to the next/previous image stored in the

USER folder on the MicroSD card. If the DOWN push-button is pressed, the Image Viewer is

stopped and the listbox shown in Figure 33 is displayed.

If the LEFT or RIGHT push-button is pressed, the Image Viewer is stopped and the

submenu shown in Figure 32 is displayed.

The supported image size is 240x320. The maximum number of images that can be read

from the MicroSD card is 25 images, selected in alphabetic order.

2.4.4

Wave Player submenu

STM32L152D-EVAL evaluation board supports stereo audio play thanks to an audio Codec

CS43L22 connected to I2S2 port and controlled by I2C1 interface.

In this demo, any wave file stored under the USER folder in the MicroSD card can be

opened using the FatFs file system and transferred to the internal SRAM by block

(512 bytes) using the DMA and the SDIO interfaces. All the wave files properties are read

from the Wave File Header.

Figure 34.

Audio Playback architecture

APP Main Menu Name

UM1510 Datasheet(PDF) 32 Page - STMicroelectronics