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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..f04f445 --- /dev/null +++ b/README.md @@ -0,0 +1,63 @@ +# ESP-Modbus Library + +## Overview + +An Espressif ESP-Modbus Library (esp-modbus) is a library to support Modbus communication in the networks based on RS485, WiFi, Ethernet interfaces. The Modbus is a data communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). + +* [ESP-Modbus component on GitHub](https://www.github.com/espressif/esp-modbus) + +This library is to be used with Espressif’s IoT Development Framework, [ESP_IDF](https://github.com/espressif/esp-idf). The packages from this repository are uploaded to Espressif’s component repository. + +* [esp-modbus component in component repository](https://components.espressif.com/component/espressif/esp-modbus) + +You can add the component to your project via `idf.py add-dependency`. More information about idf-component-manager can be found in [Espressif API guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-component-manager.html) or [PyPi registry](https://pypi.org/project/idf-component-manager). + +The ESP-Modbus library can be used with ESP-IDF v4.1 and later. ESP-IDF v4.x releases include an earlier version of ESP-Modbus library inside freemodbus component. To use ESP-Modbus with these releases, users need to exclude the built-in freemodbus component from the build process, and update application components to depend on esp-modbus component instead. To exclude freemodbus component from compilation, add the following line to the project CMakeLists.txt file: + +``` +set(EXCLUDE_COMPONENTS freemodbus) +``` + +ESP-IDF v5.x and later releases do not include freemodbus component, so no extra steps are necessary when adding esp-modbus component. + +## Documentation + +The documentation can be found on the link below: + +* [ESP-Modbus documentation (English)](https://docs.espressif.com/projects/esp-modbus) + +## Application Examples + +The examples below demonstrate the ESP-Modbus library of serial, TCP ports for slave and master implementations accordingly. + +- [Modbus serial slave example](https://github.com/espressif/esp-idf/tree/master/examples/protocols/modbus/serial/mb_slave) + +- [Modbus serial master example](https://github.com/espressif/esp-idf/tree/master/examples/protocols/modbus/serial/mb_master) + +- [Modbus TCP master example](https://github.com/espressif/esp-idf/tree/master/examples/protocols/modbus/tcp/mb_tcp_master) + +- [Modbus TCP slave example](https://github.com/espressif/esp-idf/tree/master/examples/protocols/modbus/tcp/mb_tcp_slave) + +Please refer to the specific example README.md for details. + +## Protocol References + +- [Modbus Organization with protocol specifications](https://modbus.org/specs.php) + +## Contributing + +We welcome contributions to this project in the form of bug reports, feature requests and pull requests. + +Issue reports and feature requests can be submitted using Github Issues: https://github.com/espressif/esp-modbus/issues. Please check if the issue has already been reported before opening a new one. + +Contributions in the form of pull requests should follow ESP-IDF project's [contribution guidelines](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/contribute/index.html). We kindly ask developers to start a discussion on an issue before proposing large changes to the project. + +## Licence + +ESP-Modbus project is based on [FreeMODBUS library](https://github.com/cwalter-at/freemodbus), Copyright (c) 2006 Christian Walter and licensed under the BSD 3-clause license. + +Modbus Master related code is Copyright (c) 2013 Armink and licensed under BSD 3-clause license. + +All original code in this repository is Copyright (c) 2016-2022 Espressif Systems (Shanghai) Co. Ltd. + +The project is distributed under Apache 2.0 license. See the accompanying [LICENSE file](https://github.com/espressif/esp-modbus/blob/master/LICENSE) for a copy. \ No newline at end of file diff --git a/docs/conf_common.py b/docs/conf_common.py index bc44ed1..df5f4ca 100644 --- a/docs/conf_common.py +++ b/docs/conf_common.py @@ -15,6 +15,7 @@ html_context['github_repo'] = 'esp-modbus' # Extra options required by sphinx_idf_theme project_slug = 'esp-modbus' +versions_url = 'https://raw.githubusercontent.com/espressif/esp-modbus/master/docs/docs_versions.js' idf_targets = ['esp32', 'esp32s2', 'esp32c3'] languages = ['en'] diff --git a/docs/docs_versions.js b/docs/docs_versions.js new file mode 100644 index 0000000..14ce998 --- /dev/null +++ b/docs/docs_versions.js @@ -0,0 +1,15 @@ +var DOCUMENTATION_VERSIONS = { + DEFAULTS: { has_targets: false, + supported_targets: [ "esp32" ] + }, + VERSIONS: [ + { name: "latest", has_targets: false, supported_targets: [ "esp32", "esp32s2", "esp32s3", "esp32c3" ] }, + { name: "v1.0.0", old:false, has_targets:true, supported_targets: [ "esp32", "esp32s2", "esp32s3", "esp32c3" ]} + ], + IDF_TARGETS: [ + { text: "ESP32", value: "esp32"}, + { text: "ESP32-S2", value: "esp32s2"}, + { text: "ESP32-S3", value: "esp32s3"}, + { text: "ESP32-C3", value: "esp32c3"} + ] +};