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129 lines
4.6 KiB
Plaintext
129 lines
4.6 KiB
Plaintext
/**
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@defgroup boards_sodaq-autonomo SODAQ Autonomo
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@ingroup boards
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@brief Support for the SODAQ Autonomo board.
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## Overview
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The `SODAQ Autonomo` is a board by SODAQ featuring a ATSAMD21J18A. The SAMD21
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is a ARM Cortex-M0+ micro-controller. It has 256Kb of flash memory and 32Kb of
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RAM.
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The Autonomo is available from the SODAQ [shop](http://shop.sodaq.com/).
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## Hardware
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### MCU
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| MCU | ATSAMD21J18A |
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|:------------- |:--------------------- |
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| Family | ARM Cortex-M0+ |
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| Vendor | Atmel |
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| RAM | 32Kb |
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| Flash | 256Kb |
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| Frequency | up to 48MHz |
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| FPU | no |
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| Timers | 6 (1x 16-bit, 2x 24-bit, 3x 32-bit) |
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| ADCs | 1x 12-bit (8 channels) |
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| UARTs | max 6 (SERCOMs shared with SPI and I2C) |
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| SPIs | max 6 (see UART) |
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| I2Cs | max 6 (see UART) |
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| Vcc | 1.8V - 3.6V |
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| Datasheet | [Datasheet](http://ww1.microchip.com/downloads/en/DeviceDoc/SAM_D21_DA1_Family_Data%20Sheet_DS40001882E.pdf) |
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### User Interface
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1 LED:
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| Device | PIN |
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|:------ |:--- |
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| LED0 | PA19 |
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## Implementation Status
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Please refer to [this tracker](https://github.com/RIOT-OS/RIOT/issues/1646)
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to see which projects are work in progress and who is the contact person for
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this. Notice that the initial support for the Autonomo was based on
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samr21-xpro. At some point we will add a separate issue to track changes for
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this board.
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| Device | ID | Supported | Comments |
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|:------------- |:------------- |:------------- |:------------- |
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| MCU | samd21 | partly | Energy saving modes not fully utilized|
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| Low-level driver | GPIO | yes | |
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| | PWM | yes | |
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| | UART | yes | two UARTs by now|
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| | I2C | yes | |
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| | SPI | yes | |
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| | ADC | yes | PA04 & PA05 disabled by default due to EDBG's use of them for UART, can be enabled from `periph_conf.h`|
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| | USB | no | |
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| | RTT | yes | |
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| | RTC | yes | |
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| | RNG | no | no HW module |
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| | Timer | yes | |
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## Features of the board
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Besides the SAMD21 the board has the following features:
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| Feature | Description |
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|:------ |:--- |
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| Compatibility | Arduino M0 compatible |
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| Size | 58.5 x 33.5 mm |
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| Operating Voltage | 3.3V |
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| Digital I/O Pins | 16, with 12 PWM, UART, SPI and TWI (I2C) |
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| Analog Input Pins | 6, 12-bit ADC channels |
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| Analog Output Pins | 10-bit DAC |
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| External Interrupts | Available on all pins except pin 4 |
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| DC Current per I/O pin | 7 mA |
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| EEPROM | Up to 16KB by emulation |
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| Clock Speed | 48 MHz |
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| Debug | Serial Wire Interface |
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| Communications | Bee compatible slot for communication modules with software switchable power |
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| Storage | 16Mbit Dataflash Module and Micro SD card holder |
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| Power | 5V USB power and/or 3.7V LiPo battery |
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| Power switch | Software switchable power for connected devices up to 1A |
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| Charging | Solar charge controller, up to 500mA charge current|
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| LED's | Yellow charge LED and green LED on pin 13 |
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## Flashing the device
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Use `BOARD=sodaq-autonomo` with the `make` command.<br/>
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Example with `hello-world` application:
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```
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make BOARD=sodaq-autonomo -C examples/hello-world flash
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```
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@note If the application crashes, automatic reflashing via USB, as explained
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above won't be possible. In this case, the board must be set in
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bootloader mode by double tapping the reset button before running the
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flash command.
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## Accessing STDIO via UART
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STDIO of RIOT is directly available over the USB port.
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The `TERM_DELAY` environment variable can be used to add a delay (in second)
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before opening the serial terminal. The default value is 2s which should be
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enough in most of the situation.
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## Supported Toolchains
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To build software for the autonomo board we strongly recommend the usage of
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the [GNU Tools for ARM Embedded Processors](https://launchpad.net/gcc-arm-embedded) toolchain.
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## Known Issues / Problems
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### Stack sizes
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The default stack sizes have not been tuned properly yet. If in doubt why
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your application crashes try increasing the default stack sizes and use `ps` to
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find out how much stack is being used.
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Tracked in https://github.com/RIOT-OS/RIOT/issues/2228
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*/
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