Figure 55.
PC software H2R data transfer display
The demonstration ends when the PC software receives acknowledgment and saves the data in a file. A window
pops up at the end of the transfer to select the file location.
Stopwatch demonstration
This demonstration shows how fast a smart phone updates the mailbox.
The smart phone sends, as fast as possible, stopwatch values (8-byte frames) to the MCU using the mailbox. The
MCU displays these values on the LCD screen and computes the duration between two consecutive updates. The
average and maximum inter-frame durations are refreshed and displayed after the reception of 20 frames.
To run the demonstration
1.
On the ST25DV64KC-DISCO board, enter the Fast transfer mode menu.
2.
On the smart phone: open the ST25 NFC App, tap the ST25DV-I2C tag and go to the "Stopwatch Transfers"
menu and click on Start button.
UM2949
Main menu
UM2949
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Rev 1
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