SAM E54 Xplained Pro Evaluation Kit

Overview

The SAM E54 Xplained Pro Evaluation Kit [1] is ideal for evaluation and prototyping with the SAM E54 Cortex®-M4F processor-based microcontrollers. The kit includes Atmel’s Embedded Debugger (EDBG), which provides a full debug interface without the need for additional hardware.

Hardware

SAME54P20A ARM Cortex-M4F processor at 120 MHz
32.768 kHz crystal oscillator
12 MHz crystal oscillator
1024 KiB flash memory and 256 KiB of RAM
One yellow user LED
One mechanical user push button
One reset button
On-board USB based EDBG unit with serial console
One QTouch® PTC button
32 MiB QSPI Flash
ATECC508 CryptoAuthentication™ device
AT24MAC402 serial EEPROM with EUI-48™ MAC address
Ethernet
- RJ45 connector with built-in magnetics
- KSZ8091RNA PHY
- 10Base-T/100Base-TX IEE 802.3 compliant Ethernet transceiver
USB interface, host, and device
SD/SDIO card connector

Supported Features

The same54_xpro board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

Pin Mapping

The SAM E54 Xplained Pro evaluation kit has 4 GPIO controllers. These controllers are responsible for pin muxing, input/output, pull-up, etc.

For more details please refer to SAM D5x/E5x Family Datasheet (Web) [2], the SAM E54 Xplained Pro Schematic (Blue PCB) [3], or SAM E54 Xplained Pro Schematic (Red PCB) [4].

Default Zephyr Peripheral Mapping:

SERCOM2 USART TX : PB24
SERCOM2 USART RX : PB25
GPIO/PWM LED0 : PC18
GPIO SW0 : PB31
GMAC RMII REFCK : PA14
GMAC RMII TXEN : PA17
GMAC RMII TXD0 : PA18
GMAC RMII TXD1 : PA19
GMAC RMII CRSDV : PC20
GMAC RMII RXD0 : PA13
GMAC RMII RXD1 : PA12
GMAC RMII RXER : PA15
GMAC MDIO MDC : PC11
GMAC MDIO MDIO : PC12
SERCOM4 SPI SCK : PB26
SERCOM4 SPI MOSI : PB27
SERCOM4 SPI MISO : PB29
SERCOM7 I2C SDA : PD08
SERCOM7 I2C SCL : PD09
USB DP : PA25
USB DM : PA24

System Clock

The SAME54 MCU is configured to use the 32.768 kHz external oscillator with the on-chip PLL generating the 48 MHz system clock.

Serial Port

The SAME54 MCU has 8 SERCOM based USARTs with one configured as USARTs in this BSP. SERCOM2 is the default Zephyr console.

SERCOM2 115200 8n1 connected to the onboard Atmel Embedded Debugger (EDBG)

PWM

The SAME54 MCU has 5 TCC based PWM units with up to 6 outputs each and a period of 24 bits or 16 bits. If CONFIG_PWM_SAM0_TCC is enabled then LED0 is driven by TCC0 instead of by GPIO.

SPI Port

The SAME54 MCU has 8 SERCOM based SPIs.

I2C Port

The SAME54 MCU has 8 SERCOM based I2Cs. On the SAM E54 Xplained Pro, SERCOM7 is connected to a AT24MAC402 EEPROM and a ATECC508A Crypto Authentication device.

Programming and Debugging

The same54_xpro board supports the runners and associated west commands listed below.

	flash	debug

The SAM E54 Xplained Pro comes with a Atmel Embedded Debugger (EDBG). This provides a debug interface to the SAME54 chip and is supported by OpenOCD.

Flashing

Build the Zephyr kernel and the hello_world sample application:
```
west build -b same54_xpro samples/hello_world
```
Connect the SAM E54 Xplained Pro to your host computer using the USB debug port.
Run your favorite terminal program to listen for output. Under Linux the terminal should be /dev/ttyACM0. For example:
```
$ minicom -D /dev/ttyACM0 -o
```
The -o option tells minicom not to send the modem initialization string. Connection should be configured as follows:
- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1
To flash an image:
```
west build -b same54_xpro samples/hello_world
west flash
```
You should see “Hello World! same54_xpro” in your terminal.