Atmel SAM D10 Xplained Mini

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Support for the Atmel SAM D10 Xplained Mini board.

When using this board with RIOT, set the BOARD variable to samd10-xmini in your Makefile. If you follow the standard RIOT project structure, your Makefile should look like this:

# name of your application
APPLICATION = hello-world

# Change this to your board if you want to build for a different board
BOARD ?= samd10-xmini

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

include $(RIOTBASE)/Makefile.include

Support for the Atmel SAM D10 Xplained Mini board.

Overview

The SAMD10 Xplained Mini is an ultra-low cost evaluation board by Atmel featuring an SoC. The SoC includes a SAMD10 ARM Cortex-M0+ micro- controller. For programming the MCU comes with 4Kb of RAM and 16Kb of flash memory.

The samd10-xmini is available from various hardware vendors for ~8€ (as of 2020 October).

Hardware

samd10-xmini image

MCU

MCU	ATSAMD10D14AU
Family	ARM Cortex-M0+
Vendor	Atmel
RAM	4 kiB
Flash	16 kiB
Frequency	up to 48 MHz
FPU	no
Timers	3 (2 x 16-bit, 1 x 24-bit)
ADCs	1x 10-bit (10 channels)
DACs	1x 10-bit (1 channel)
UARTs	max 3 (shared with SPI and I2C)
SPIs	max 3 (see UART)
I2Cs	max 3 (see UART)
Vcc	1.62V - 3.63V
Datasheet	Datasheet
Board Manual	Board Manual

User Interface

1 User button and 1 LED:

Device	PIN
LED0	PA09
SW0	PA25

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 samd10-xmini is using edbg. by calling: make BOARD=samd10-xmini -C tests/leds flash

Note that on Linux, you will need libudev-dev package to be installed.

Users can also use openOCD to flash and/or debug the board using: PROGRAMMER=openocd make BOARD=samd10-xmini -C tests/leds flash

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

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

I2C

The I2C pins on the board do not have any pull-ups connected to them. That means that running e.g. i2c_scan without any I2C slaves connected will run into timeouts.