STMicroelectronics STM32100B-EVAL, Руководство пользователя

Страница: 28 / 48

Running the demonstration UM0891
28/48 Doc ID 16982 Rev 1
This application reads all bitmap pictures from the USER directory (see Section 4.1:
Programming the media files ) and displays only the .BMP files having the following format:
● Bit depth: 16-bit (RGB)
●
Size: 240x320
The maximum images number that can be read from the MicroSD card is 25 images
selected by alphabetic order.
The Images Viewer submenu is shown in Figure 32.
Figure 32. Images Viewer submenu
When you select Images Viewer , the first image is displayed as shown in Figure 33.
Figure 33. STM32 Images Viewer
Use RIGHT and LEFT to go to the next/previous image stored in the USER folder of the
MicroSD card. If you press the SEL push-button, the
Images Viewer is stopped and you
return to the Images Viewer submenu shown in Figure 32 .
2.7.4 Wave Player submenu
The STM32F100VB microcontroller features an embedded DAC which can be used to
generate output signals.
In this demonstration, any wave file stored under the USER folder in the MicroSD card can
be opened using the file system DOSFS and transfered to the internal SRAM by block (512
bytes) using the DMA and the SPI interface. Timer 6 (TIM6) triggers the DAC to generate
Images Viewer
Return
Images Viewer
APP Main Menu Name