Cypress Semiconductor CY8C21534 Especificaciones descargar pdf (Pagina 9)

requested file, and the MCU system will write that file to a Secure Digital Memory (SD)

card that is shared by the digital photo frame. The digital photo frame can then, in

normal operation, read the SD card and display the schedule as a picture to the user.

The digital photo frame, being the only limitation of the project, was used because it is

inexpensive compared to many embedded electronics design screens available for

purchase as kits.

2 Digital Photo Frame and Memory Type

2.1 Digital Photo Frame General Operation

The digital photo frame was chosen as the display for the project because of its

inexpensive cost. Displays commonly sold for embedded projects are expensive and

would make the cost of the electronic picture frame unreasonable. The digital photo

frame can be purchased at Clas Ohlson, a known hardware chain store, and the

price is between 35 and 45 Euros depending on which store branch it is purchased

from. There are also several other models from differing stores that would suit the

project. The only requirement is that they have an SD card interface. The Digital

photo frame chosen for this project is shown in figure 2.

Figure 2: User Controls of Digital Picture Frame.

The buttons on the back, shown in figure 2, consist of a Menu button, Directional

buttons, and a Power/Reset button. These are used to set the display characteristics

of the frame. Once set, the unit will display the pictures automatically. The unit has a

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Cypress Semiconductor CY8C21534 Especificaciones Pagina 9