Microchip SAM E51 Curiosity Nano

Caution

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Tip

When using this board with RIOT, set the BOARD variable to same51-curiosity-nano in your Makefile. If you follow the standard RIOT project structure, your Makefile should look like this:

./Makefile

# name of your application
APPLICATION = hello-world

# Change this to your board if you want to build for a different board
BOARD ?= same51-curiosity-nano

# This has to be the absolute path to the RIOT base directory:
RIOTBASE ?= $(CURDIR)/RIOT

include $(RIOTBASE)/Makefile.include

Support for the Microchip SAM E51 Curiosity Nano board.

Overview

The SAM E51 Curiosity Nano is an evaluation board by Microchip featuring an ATSAME51J20A SoC. The SoC includes a SAM E51 ARM Cortex-M4F microcontroller. For programming the MCU comes with 256Kb of RAM and 1024Kb of flash memory.

The same51-curiosity-nano is available from various hardware vendors for ~15$ (as of 2024 December).

Hardware

MCU

MCU	ATSAME51J20A
Family	ARM Cortex-M4F
Vendor	Microchip
RAM	256Kb
Flash	1024Kb
Frequency	up to 120MHz
FPU	yes
Timers	8 (16-bit)
ADCs	2x 12-bit (20 channels)
UARTs	max 6 (shared with SPI and I2C)
SPIs	max 6 (see UART)
I2Cs	max 6 (see UART)
Vcc	1.62V - 3.63V
Datasheet	Datasheet
Board Manual	Board Manual

User Interface

1 User button and 1 LED:

Device	PIN
LED0	PA14
SW0 (button)	PA15

Implementation Status

Device	ID	Supported	Comments
MCU	same51	yes
Low-level driver	GPIO	yes
	ADC	yes
	CAN	yes
	DAC	yes
	PWM	yes
	UART	yes
	I2C	yes
	SPI	yes
	USB	yes
	RTT	yes
	RTC	yes
	RNG	yes
	Timer	yes

Flashing the device

Connect the device to your Micro-USB cable using the port labeled as DEBUG USB.

The standard method for flashing RIOT to the board is using OpenOCD. by calling: make BOARD=same51-curiosity-nano -C tests/leds flash

On Linux you will have to add a udev rule for hidraw, like

bash
echo 'KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0664", GROUP="plugdev"' \
    | sudo tee -a /etc/udev/rules.d/99-usb.rules
sudo service udev restart

Known Issues / Problems