Demonstration applications

UM0501

16/23

Doc ID 14320 Rev 3

2.11

MICROSD demo

This mode demonstrates the basic operation of the MicroSD card interface.

1.

When this mode is entered, it checks if a MicroSD card is inserted in the slot.

–

If no card is found, the message shown in Figure 16 is displayed.

Figure 16.

No card found

–

When a MicroSD card is detected, another message is displayed (see Figure 17).

Figure 17.

Card detected

2.

Then the MicroSD card is initialized, followed by a Write block (512 bytes) and a Read

block operation. See Figure 18 for the messages displayed consecutively on the LCD

screen.

Figure 18.

MicroSD card initialization

3.

When this phase is complete, the message shown in Figure 19 is displayed.

By pressing the joystick to LEFT or RIGHT, you can display the 512 bytes of data read

from the MicroSD card. The data should be equal to the address low byte.

Please

Insert MicroSD

MicroSD card

Detected

Init

PASS

Write Block

PASS

Read Block

PASS