Atmel Evaluation Kit for ATxmega32E5, 8/16-bit AVR XMEGA Microcontroller Atmel ATXMEGAE5-XPLD ATXMEGAE5-XPLD データシート
製品コード
ATXMEGAE5-XPLD
Atmel AT02667: XMEGA-E5 Xplained Hardware User’s Guide [APPLICATION NOTE]
42084A
−AVR−04/2013
9
4.
Peripherals
4.1
Mechanical buttons
Two mechanical buttons are connected to Atmel AVR XMEGA. All buttons have no external pull-ups so user has to
activate internal pull-ups in order to use them. When a button is pressed it will drive the I/O line to GND.
activate internal pull-ups in order to use them. When a button is pressed it will drive the I/O line to GND.
Table 4-1. Mechanical button connection.
Pin on XMEGA
Silkscreen text on PCB
PD0
SW0
PD2
SW1
4.2
LEDs
There are two yellow LEDs available on the board that can be turned on and off. The LEDs can be activated by driving
the connected I/O line to GND.
the connected I/O line to GND.
Table 4-2. LED connections.
Pin on XMEGA
LED
PD4
Yellow LED0
PD5
Yellow LED1
One green LED (power indicator) and one red LED (status) are also present inside the same package and therefore the
colors can be mixed to orange when both are activated. Those two LEDs are controlled via the Board Controller and
user has no access to them.
colors can be mixed to orange when both are activated. Those two LEDs are controlled via the Board Controller and
user has no access to them.
4.3
Quadrature encoder
The Quadrature Encoder (SW102) is made of one mechanical button and two outputs. These outputs are connected to
a mechanical switch (SW103) which enables to either connect them to the XMEGA pins or let them accessible on J3
header.
a mechanical switch (SW103) which enables to either connect them to the XMEGA pins or let them accessible on J3
header.
Table 4-3. Quadrature encoder connections.
Pin on XMEGA
Pin on J3 header
Switch SW103
Quadrature Encoder pins
PA5
NA
NA
5 (button)
PA6
NA
2-1 (switch pushed down)
1 (channel A)
PA7
NA
5-4 (switch pushed down)
3 (channel B)
NA
PIN3
2-3 (switch pushed up)
1 (channel A)
NA
PIN4
5-6 (switch pushed up)
3 (channel B)
4.4
OLED display
The OLED display on the XMEGA-E5 Xplained board is UG-2832HSWEG04 manufactured by WiseChip
Semiconductor Inc. It has a resolution of 128 × 32 pixels. In the design the display is connected via a SPI based
interface. Detailed information about the display can be obtained from the display datasheet.
Semiconductor Inc. It has a resolution of 128 × 32 pixels. In the design the display is connected via a SPI based
interface. Detailed information about the display can be obtained from the display datasheet.
The connection between the MCU and the OLED display is shown in