Mbed h arduino library

tkem/mbino

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README.md

mbino is a library that provides several mbed OS 2 APIs for the Arduino platform.

Currently, the following APIs are — at least partially — supported:

For an overview on how to use these, have a look at (and try out!) the example programs.

Known Bugs and Limitations

Only AVR 8-bit microcontroller boards are supported. This means no support for Arduino Due, Zero or M0, etc.

Although mbed programs usually have a main() function, you can still write sketches based on setup() and loop() , if you want to. This can be useful to sprinkle an existing sketch with printf() statements for debugging, for example.

The standard file descriptors stdin , stdout , and stderr are set up by default to point to Arduino’s serial monitor, so that printf() et al. work out of the box. However, with the current implementation, this leads to a significant increase in code size, even if none of the stdio functions are ever used. If you are running out of space, define MBINO_CONF_PLATFORM_STDIO to 0 in mbed_config.h to disable stdio support.

Since the default AVR Libc printf() family of functions does not support floating point conversions, floating point values cannot be used with printf() , Serial::printf() or RawSerial::printf() .

For portability (and so millis() and PWM still work), the Ticker API uses the Timer0 comparison register for generating ticker interrupts. Therefore, Ticker only provides a resolution of about one millisecond.

The PwmOut::period() and PwmOut::pulsewidth() methods are only supported for PWM pins controlled by 16-bit timers, e.g. pins 9 and 10 on the Arduino Uno. For now, these methods are ignored for all other pins. Note that setting a period for one pin will also affect other pins controlled by the same timer.

To avoid ambiguities with Arduino’s own global Serial object, you have to use the fully qualified class name mbed::Serial when using the mbed Serial API.

Keep in mind that you are still developing for an 8-bit platform, so only 8-bit variables can be read atomically, e.g. when passing data between an ISR and your main program. Also note that int on AVR is only 16 bits wide — that’s why some APIs, such as those taking baud or hz parameters have been changed from int to long .

Copyright (c) 2017, 2018 Thomas Kemmer

mbed Microcontroller Library Copyright (c) 2006-2018 ARM Limited

Источник

arduino/ArduinoCore-mbed

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README.md

Arduino Core for mbed enabled devices

The repository contains the Arduino APIs and IDE integration files targeting a generic mbed-enabled board

Source-Code Level Debugging

Question: «I want to debug my ArduinoCore-mbed based sketch using traditional debugging tools, i.e. gdb via SWD interface. However, the debugger is unable to locate the sources for all files, particular the mbed-os files.»

Answer: This is due to the fact that we pre-compile the mbed-os code into a static library libmbed.a . Information on how to recompile libmbed.a for source code debugging can be found here. The Arduino Documentation also contains articles explaining how to debug via Segger J-Link and Lauterbach TRACE32.

Clone the repository in $sketchbook/hardware/arduino-git

Update the api symlink

Create a symlink to ArduinoCore-API/api in $sketchbook/hardware/arduino-git/mbed/cores/arduino .

Test things out

Open the Arduino IDE.

You should now see three new targets under the MBED boards label.

This procedure does not automatically install the required ARM compiler toolchain.

If the toolchain is missing, you’ll see errors like this when you try to build for an mbed-os enabled board.:

To install ARM build tools, use the Boards Manager option in the Arduino IDE to add the Arduino mbed-enabled Boards package.

The backbone of the packaging process is the https://github.com/arduino/ArduinoCore-mbed/blob/master/mbed-os-to-arduino script. It basically compiles a blank Mbed OS project for any supported target board, recovering the files that will be needed at compile time and copying them to the right location.

It can be used for a variety of tasks including:

Recompiling libmbed with source level debug support

In this case -a applies all the patches from patches folder into a mainline mbed-os tree, and -g restores the debug info.

Selecting a different optimization profile

The PROFILE environment variable tunes the compilation profiles (defaults to DEVELOP ). Other available profiles are DEBUG and RELEASE .

Selecting a different Mbed OS tree

-r flag allows using a custom mbed-os fork in place of the mainline one; useful during new target development.

Adding a target is a mostly automatic procedure.

For boards already supported by Mbed OS, the bare minimum is:

This will produce almost all the files needed. To complete the port, add the board specifications to boards.txt (giving it a unique ID) and provide pins_arduino.h and variants.cpp in variants/$ALREADY_SUPPORTED_BOARD_NAME folder. Feel free to take inspirations from the existing variants :)

For boards not supported by mainline Mbed OS, the same applies but you should provide the path of your Mbed OS fork

Customizing Mbed OS build without modifying the code

Most Mbed OS defines can be tuned using a project file called mbed_app.json . In case you need to tune a build you can add that file to your variant’s conf folder. One example is https://github.com/arduino/ArduinoCore-mbed/blob/master/variants/PORTENTA_H7_M7/conf/mbed_app.json . Providing an invalid json or replacing a non-existing property will make the build fail silently, so it’s always better to validate that file with a standard Mbed OS project.

Using this core as an mbed library

You can use this core as a standard mbed library; all APIs are under arduino namespace (so they must be called like arduino::digitalWrite() )

The opposite is working as well; from any sketch you can call mbed APIs by prepending mbed:: namespace.

Источник

SeeedJP/ArduinoCore-mbedos

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README.md

Arduino Core for mbed enabled devices

The repository contains the Arduino APIs and IDE integration files targeting a generic mbed-enabled board

Clone the repository in $sketchbook/hardware/arduino

Then clone https://github.com/arduino/ArduinoCore-API in a directory at your choice. Checkout namespace_arduino branch.

Remove the symlink to api you can find in $sketchbook/hardware/arduino/mbed/cores/arduino and replace it with a symlink to ArduinoCore-API/api

Open Arduino IDE; you should now see three new targets under MBED boards label

Adding an mbed target

Adding a target is a mostly automatic procedure that involves running https://github.com/arduino/ArduinoCore-nRF528x-mbedos/blob/master/mbed-os-to-arduino after setting BOARDNAME and ARDUINOCORE env variables. Actions marked as TODO must be executed manually.

Using this core as an mbed library

You can use this core as a standard mbed library; all APIs are under arduino namespace (so they must be called like arduino::digitalWrite() )

The opposite is working as well; from any sketch you can call mbed APIs by prepending mbed:: namespace.

About

Arduino core supporting mbed-enabled boards

Источник

Releases: arduino/ArduinoCore-mbed

What’s Changed

  • Add HM0360 driver. by @iabdalkader in #521
  • Call objcopy.postobjcopy only when needed by @facchinm in #524
  • Ethernet: add possibility to configure timeout with manual configuration by @pennam in #526
  • MbedClient: retrieve the address and port from the underlying socket … by @romainreignier in #531
  • Always clean up previous I2C object before new to avoid leaking memory by @waynepiekarski in #535
  • Update imgtool to version 1.8.0-arduino.2 by @pennam in #534
  • Remove imgtool dependency from not supported platforms by @pennam in #533
  • WHD: correctly report AP disconnection by @facchinm in #538
  • allow proper GPS functionality after disable by @pnndra in #544
  • Portenta: use LSE as LPTIMER if possible by @facchinm in #540

New Contributors

  • @romainreignier made their first contribution in #531
  • @waynepiekarski made their first contribution in #535
  • @pnndra made their first contribution in #544

Contributors

Release 3.1.1

What’s Changed

New targets!

Portenta X8 [ code will run on the M4 portion of the companion STM32H7 chip ]

Libraries

RPC: various fixes and speedups for X8 compatibility
SocketWrapper: speedup network read() and improve compatibility with existing libraries
Update STM32H7 Bootloader manager sketch

New libraries

MLC: shows how to train and feed LSM6DSOX integrated pattern recognition engine

Full Changelog:

  • Bug fix for Ethernet on Portenta boards (#436)
  • Bug fix for UART on RP2040 boards: uart_is_writeable returns true only if the TX FIFO is empty

What’s Changed

  • Add support for secure bootloader
  • Update Portenta and Nicla Vision bootloader binaries (version 23)
  • Adjust ST32H747_updateBootloader sketch
  • Fix Portenta H7 camera library regression for 320×320 resolution
  • Fix Nicla Sense ME powering from battery issue
  • Adjust PDM library defines to allow using PDM from M4
  • Add core version defines

Release 2.7.2

Changelog

  • Allow starting / stopping system timers to improve power efficiency

New shield supported:

  • Full support for Portenta Cat. M1/NB IoT GNSS Shield via GSM and GPS libraries

RP2040:

  • Fix delay()
  • Fix binary size calculation
  • Match Pico default pins with official pinout #393 (thanks @TedPap )

Contributors

Release 2.6.1

Core fixes

Make pinMode() always reconfigure gpio if called explicitly
Fix the preprocess linkerscript (thanks @rajames)
SocketWrapper: UDP: send packet on endPacket() , not on write()
Fix calling ::flush() on SerialUSB
Serial: drop characters if the ringbuffer is full
Added rules for pluggable discoveries and monitors

Targets improvements

Add RP2040 RTC and Watchdog patches
RP2040: use proper fix for usb_device_enumeration
Nicla Sense ME:

  • Update bootloader binaries
  • Added defines for internal pins

Libraries fixes

WiFi: fix linking inherited macAddress()
Portenta: PDM: cut out unusable starting PDM sample
Portenta: PDM: use PLL3 to clock SAI
PR2040: Disable DMA_IRQ_0n when stopping PDM peripheral
lvgl: add compatibility layer for both v7 and v8

Источник

janjongboom/arduino-mbed-mashup

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README.md

Running Arduino sketches on Mbed OS

The new Arduino Nano 33 BLE board is a development board that runs both Arduino and Mbed OS. This is done by implementing Arduino core on top of Mbed OS, giving users the opportunity to write both Arduino sketches and Mbed OS applications at the same time. This project also allows us to add the Arduino core as a library to any Mbed OS application, thus adding support for Arduino sketches and libraries to any Mbed OS project.

This repository contains an example of running the Arduino ChainableLED sketch on Mbed OS boards. It can be used as a basis to run any Arduino sketch on any Mbed OS board.

Building with Mbed CLI

Note: You can only build this repository on a case-sensitive file system (due to naming issues around String.cpp / string.cpp ). On macOS follow these instructions to create a case-sensitive mount point. On Windows, follow these instructions to enable case-sensitivity on your file system.

Connect a Grove Chainable LED to pin D4/D5 on your development board.

Import this application:

Build and flash the application:

Building with the Online Compiler

Not supported. The Arduino core cannot currently be compiled under under the ARMCC compiler.

Источник

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