Datasheet

UART Mode

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Once the application has initialized and started up, the order of events should be:

• Press Connect.

If COM ports are available, the application searches for the EVM. If no EVM is found, an error

message notifies the user. If the port is available and communications are successful, the menu item

changes from Connect to Disconnect. Press Disconnect if you want to disable serial

communications.

• Verify successful communication.

After any command button is pressed, <1><0><0> should be displayed on the bottom status bar as an

acknowledgement that proper communication has occurred with the board.

The application is now ready for use.

Closing down the application (through the X in the upper-right corner or the File→Exit option) closes the

serial port connection; it is not necessary to press Disconnect before shutting down the application.

4.2 DRV882x GPIO Control Signals

Once the application is communicating with the interface board, actuate the control signals by checking or

unchecking a series of check boxes in the Control Signals frame, as shown in Figure 5.

Figure 5. Control Signals

Control signal functionality follows this protocol:. Un-checked checkboxes

• A marked checkbox translates to a hi level on the respective control signal

• An empty checkbox translates to a low level on the respective control signals

The DECAY signal uses a dropdown box with three options, because the signal can be configured as LO,

HI, or HI-Z, as shown in Figure 5.

DRV882x Evaluation Modules SLMU002– June 2011

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