ATA6661/ATA6662 [APPLICATION NOTE]
4968D–AUTO–06/15
2
Development Board Features
The development board for the Atmel
®
ATA6661/ATA6662 supports the following features:
●
Includes all components necessary for ATA6661/ATA6662 operation
●
All pins are easily accessible
●
Can be used for master or slave operation
●
Wake-up pulse via an on-board switch
●
24V application can be built up on the board
Quick Start
The development board for the Atmel ATA6661/ATA6662 is shipped with all components necessary to start with the
development of a LIN slave node immediately.
Connecting an external 12V DC power supply between the terminals VBAT and GND puts the IC in the pre-normal mode. In
this mode, the inhibit pin INH will be switched to the VS level in order to enable an external voltage regulator (not included on
the board). The LIN pin is in the recessive state.
Please note that the communication is still inactive during pre-normal mode.
In order to communicate via the LIN bus interface, you have to switch to normal mode by applying 5V at pin EN.
As RXD is an open-drain output, the necessary pull-up resistor can be activated by applying a +5V DC voltage, for example
at pin +5V on the board.
