build: W600-SDK importiert, Firmware-Build und Hello am EVK

Docker-Build mit gcc-arm-none-eabi 4.9-2014q4 (statt Homebrew-Cask) verwendet, Dockerfile/tools/docker.sh dafür aus Task 13 vorgezogen. cmake/sdk.cmake schont gcc 4.9 (kennt -fcommon/-Wno-error=... nicht). Zwei zusätzliche SDK-Stubs (EarlyInit, pre_gpio_config) in src/sys/sdk_stubs.c ergänzt, siehe sdk/PATCHES.md.
2026-09-11 12:52:26 +02:00
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+lwIP SNMPv2c agent
+==================
+
+Based on SNMP stack written by Christiaan Simons <christiaan.simons@axon.tv>
+
+Rewritten by Martin Hentschel <info@cl-soft.de> and
+Dirk Ziegelmeier <dziegel@gmx.de>
+
+Features:
+  - SNMPv2c support.
+  - Low RAM usage - no memory pools, stack only.
+  - MIB2 implementation is separated from SNMP stack.
+  - Support for multiple MIBs (snmp_set_mibs() call) - e.g. for private MIB.
+  - Simple and generic API for MIB implementation.
+  - Comfortable node types and helper functions for scalar arrays and tables.
+  - Counter64, bit and truthvalue datatype support.
+  - Callbacks for SNMP writes e.g. to implement persistency.
+  - Runs on two APIs: RAW and netconn.
+  - Async API is gone - the stack now supports netconn API instead,
+    so blocking operations can be done in MIB calls.
+    SNMP runs in a worker thread when netconn API is used.
+  - Simplified thread sync support for MIBs - useful when MIBs
+    need to access variables shared with other threads where no locking is
+    possible. Used in MIB2 to access lwIP stats from lwIP thread.
+
+MIB compiler (code generator):
+  - Written in C#. MIB viewer used Windows Forms.
+  - Developed on Windows with Visual Studio 2010.
+  - Can be compiled and used under Linux with http://www.monodevelop.com/.
+  - Based on a heavily modified version of of SharpSnmpLib (a4bd05c6afb4)
+    (https://sharpsnmplib.codeplex.com/SourceControl/network/forks/Nemo157/MIBParserUpdate).
+  - MIB parser, C file generation framework and LWIP code generation are cleanly
+    separated, which means the code may be useful as a base for code generation
+    of other SNMP agents.
+
+Notes:
+  - Stack and MIB compiler were used to implement a Profinet device.
+    Compiled/implemented MIBs: LLDP-MIB, LLDP-EXT-DOT3-MIB, LLDP-EXT-PNO-MIB.