first release

README.md

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+# Arduino core support for CH32 EVT Boards
+
+* [Introduction](https://github.com/openwch/arduino_core_ch32#Introduction)<br>
+* [How to use](https://github.com/openwch/arduino_core_ch32#How-to-use)<br>
+* [Supported boards](https://github.com/openwch/arduino_core_ch32#Supported-boards)<br>
+* [Submit bugs](https://github.com/openwch/arduino_core_ch32#Submit-bugs)<br>
+
+## Introduction
+
+This repo adds the support of CH32 MCU in Arduino IDE.<br>
+
+The file includes:
+* [Arduino_Core_CH32](https://github.com/openwch/arduino_core_ch32):Public library files.
+* [openocd](https://github.com/openwch/openocd_wch):can directly use WCH-LINKE to download and debug wch chips.
+* [riscv-none-embed-gcc](https://github.com/openwch/risc-none-embed-gcc):A toolchain that supports WCH custom half word and byte compression instruction extensions and hardware stack push/pop functions.
+
+## How to use
+
+You can add this software package directly on the IDE through the [Arduino Boards Manager](https://www.arduino.cc/en/guide/cores).
+
+Add the following link in the "*Additional Boards Managers URLs*" field:
+
+https://github.com/openwch/board_manager_files/raw/main/package_ch32v_index.json
+
+Then you can search for "**wch**" through the "**board manager**", find the installation package, and install it.
+
+## Supported boards
+
+It will be a long-term support and maintenance project, unless we encounter force majeure factors.The current version supports the following development boards:
+
+- [CH32V00x EVT Boards](#CH32V00x-EVT-Boards)
+- [CH32V20x EVT Boards](#CH32V20x-EVT-Boards)
+
+### CH32V00x EVT Boards
+
+| Status | Boards name | Release |
+| :----: |     ----    | :-----: |
+| :heavy_check_mark: | CH32V003F4P | 1.0.0 |  
+
+### CH32V20x EVT Boards
+
+| Status | Boards name | Release |
+| :----: |     ----    | :-----: |
+| :heavy_check_mark: | CH32V203G8U | 1.0.0 |  
+
+## Submit bugs
+
+If you have any questions, you could contact me through the email "*[email protected]*".
+Or you could [file an issue on GitHub](https://github.com/openwch/arduino_core_ch32/issues/new).
+
+

boards.txt

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+# See: https://arduino.github.io/arduino-cli/latest/platform-specification/
+
+menu.pnum=Board Select
+
+menu.xserial=U(S)ART support
+menu.usb=USB support (if available)
+menu.xusb=USB speed (if available)
+menu.virtio=Virtual serial support
+
+menu.opt=Optimize
+menu.dbg=Debug symbols and core logs
+menu.rtlib=C Runtime Library
+menu.upload_method=Upload method
+
+
+
+#############################################################################
+##CH32V00x EVT Board
+
+CH32V00x_EVT.name=CH32V00x
+CH32V00x_EVT.build.core=arduino
+CH32V00x_EVT.build.board=CH32V00x_EVT
+CH32V00x_EVT.upload.maximum_size=0
+CH32V00x_EVT.upload.maximum_data_size=0
+CH32V00x_EVT.build.variant_h=variant_{build.board}.h
+
+
+#CH32V003F4 EVT Board
+CH32V00x_EVT.menu.pnum.CH32V003F4=CH32V003F4 EVT
+CH32V00x_EVT.menu.pnum.CH32V003F4.node=NODE_V003F4
+CH32V00x_EVT.menu.pnum.CH32V003F4.upload.maximum_size=16384
+CH32V00x_EVT.menu.pnum.CH32V003F4.upload.maximum_data_size=2048
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.mcu=QingKe-V2
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.board=CH32V003F4
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.series=CH32V00x
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.variant=CH32V00x/CH32V003F4
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.chip=CH32V003F4
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.march=rv32ecxw
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.mabi=ilp32e
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.math_lib_gcc=-lm 
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.IQ_math_RV32=
+CH32V00x_EVT.menu.pnum.CH32V003F4.build.ch_extra_lib=-lprintf
+
+
+# Upload menu
+CH32V00x_EVT.menu.upload_method.swdMethod=WCH-SWD
+CH32V00x_EVT.menu.upload_method.swdMethod.upload.protocol=
+CH32V00x_EVT.menu.upload_method.swdMethod.upload.options=
+CH32V00x_EVT.menu.upload_method.swdMethod.upload.tool=WCH_linkE
+
+
+
+# Optimizations
+CH32V00x_EVT.menu.opt.osstd=Smallest (-Os default)
+CH32V00x_EVT.menu.opt.osstd.build.flags.optimize=-Os 
+CH32V00x_EVT.menu.opt.oslto=Smallest (-Os) with LTO
+CH32V00x_EVT.menu.opt.oslto.build.flags.optimize=-Os -flto
+CH32V00x_EVT.menu.opt.o1std=Fast (-O1)
+CH32V00x_EVT.menu.opt.o1std.build.flags.optimize=-O1
+CH32V00x_EVT.menu.opt.o1lto=Fast (-O1) with LTO
+CH32V00x_EVT.menu.opt.o1lto.build.flags.optimize=-O1 -flto
+CH32V00x_EVT.menu.opt.o2std=Faster (-O2)
+CH32V00x_EVT.menu.opt.o2std.build.flags.optimize=-O2
+CH32V00x_EVT.menu.opt.o2lto=Faster (-O2) with LTO
+CH32V00x_EVT.menu.opt.o2lto.build.flags.optimize=-O2 -flto
+CH32V00x_EVT.menu.opt.o3std=Fastest (-O3)
+CH32V00x_EVT.menu.opt.o3std.build.flags.optimize=-O3
+CH32V00x_EVT.menu.opt.o3lto=Fastest (-O3) with LTO
+CH32V00x_EVT.menu.opt.o3lto.build.flags.optimize=-O3 -flto
+CH32V00x_EVT.menu.opt.ogstd=Debug (-Og)
+CH32V00x_EVT.menu.opt.ogstd.build.flags.optimize=-Og
+CH32V00x_EVT.menu.opt.o0std=No Optimization (-O0)
+CH32V00x_EVT.menu.opt.o0std.build.flags.optimize=-O0
+
+
+# Debug information
+CH32V00x_EVT.menu.dbg.none=None
+CH32V00x_EVT.menu.dbg.none.build.flags.debug= 
+CH32V00x_EVT.menu.dbg.enable_sym=Symbols Enabled (-g)
+CH32V00x_EVT.menu.dbg.enable_sym.build.flags.debug=-g -DNDEBUG
+CH32V00x_EVT.menu.dbg.enable_log=Core logs Enabled
+CH32V00x_EVT.menu.dbg.enable_log.build.flags.debug=
+CH32V00x_EVT.menu.dbg.enable_all=Core Logs and Symbols Enabled (-g)
+CH32V00x_EVT.menu.dbg.enable_all.build.flags.debug=-g
+
+
+# C Runtime Library
+CH32V00x_EVT.menu.rtlib.nano=Newlib Nano (default)
+CH32V00x_EVT.menu.rtlib.nano.build.flags.ldflags=--specs=nano.specs --specs=nosys.specs
+CH32V00x_EVT.menu.rtlib.nanofp=Newlib Nano + Float Printf
+CH32V00x_EVT.menu.rtlib.nanofp.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _printf_float
+CH32V00x_EVT.menu.rtlib.nanofs=Newlib Nano + Float Scanf
+CH32V00x_EVT.menu.rtlib.nanofs.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _scanf_float
+CH32V00x_EVT.menu.rtlib.nanofps=Newlib Nano + Float Printf/Scanf
+CH32V00x_EVT.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _printf_float -u _scanf_float
+CH32V00x_EVT.menu.rtlib.full=Newlib Standard
+CH32V00x_EVT.menu.rtlib.full.build.flags.ldspecs=
+
+
+
+#############################################################################
+##CH32V20x EVT Board
+
+CH32V20x_EVT.name=CH32V20x
+CH32V20x_EVT.build.core=arduino
+CH32V20x_EVT.build.board=CH32V20x_EVT
+CH32V20x_EVT.upload.maximum_size=0
+CH32V20x_EVT.upload.maximum_data_size=0
+CH32V20x_EVT.build.variant_h=variant_{build.board}.h
+
+
+#CH32V203G8 EVT Board
+CH32V20x_EVT.menu.pnum.CH32V203G8=CH32V203G8 EVT
+CH32V20x_EVT.menu.pnum.CH32V203G8.node=NODE_V203G8
+CH32V20x_EVT.menu.pnum.CH32V203G8.upload.maximum_size=65536
+CH32V20x_EVT.menu.pnum.CH32V203G8.upload.maximum_data_size=20480
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.mcu=QingKe-V4C
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.board=CH32V203G8
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.series=CH32V20x
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.variant=CH32V20x/CH32V203G8
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.chip=CH32V203
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.march=rv32imacxw
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.mabi=ilp32
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.math_lib_gcc=-lm 
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.IQ_math_RV32=
+CH32V20x_EVT.menu.pnum.CH32V203G8.build.ch_extra_lib=-lprintf
+
+
+# Upload menu
+CH32V20x_EVT.menu.upload_method.swdMethod=WCH-SWD
+CH32V20x_EVT.menu.upload_method.swdMethod.upload.protocol=
+CH32V20x_EVT.menu.upload_method.swdMethod.upload.options=
+CH32V20x_EVT.menu.upload_method.swdMethod.upload.tool=WCH_linkE
+
+
+
+# Optimizations
+CH32V20x_EVT.menu.opt.osstd=Smallest (-Os default)
+CH32V20x_EVT.menu.opt.osstd.build.flags.optimize=-Os 
+CH32V20x_EVT.menu.opt.oslto=Smallest (-Os) with LTO
+CH32V20x_EVT.menu.opt.oslto.build.flags.optimize=-Os -flto
+CH32V20x_EVT.menu.opt.o1std=Fast (-O1)
+CH32V20x_EVT.menu.opt.o1std.build.flags.optimize=-O1
+CH32V20x_EVT.menu.opt.o1lto=Fast (-O1) with LTO
+CH32V20x_EVT.menu.opt.o1lto.build.flags.optimize=-O1 -flto
+CH32V20x_EVT.menu.opt.o2std=Faster (-O2)
+CH32V20x_EVT.menu.opt.o2std.build.flags.optimize=-O2
+CH32V20x_EVT.menu.opt.o2lto=Faster (-O2) with LTO
+CH32V20x_EVT.menu.opt.o2lto.build.flags.optimize=-O2 -flto
+CH32V20x_EVT.menu.opt.o3std=Fastest (-O3)
+CH32V20x_EVT.menu.opt.o3std.build.flags.optimize=-O3
+CH32V20x_EVT.menu.opt.o3lto=Fastest (-O3) with LTO
+CH32V20x_EVT.menu.opt.o3lto.build.flags.optimize=-O3 -flto
+CH32V20x_EVT.menu.opt.ogstd=Debug (-Og)
+CH32V20x_EVT.menu.opt.ogstd.build.flags.optimize=-Og
+CH32V20x_EVT.menu.opt.o0std=No Optimization (-O0)
+CH32V20x_EVT.menu.opt.o0std.build.flags.optimize=-O0
+
+
+# Debug information
+CH32V20x_EVT.menu.dbg.none=None
+CH32V20x_EVT.menu.dbg.none.build.flags.debug= 
+CH32V20x_EVT.menu.dbg.enable_sym=Symbols Enabled (-g)
+CH32V20x_EVT.menu.dbg.enable_sym.build.flags.debug=-g -DNDEBUG
+CH32V20x_EVT.menu.dbg.enable_log=Core logs Enabled
+CH32V20x_EVT.menu.dbg.enable_log.build.flags.debug=
+CH32V20x_EVT.menu.dbg.enable_all=Core Logs and Symbols Enabled (-g)
+CH32V20x_EVT.menu.dbg.enable_all.build.flags.debug=-g
+
+
+# C Runtime Library
+CH32V20x_EVT.menu.rtlib.nano=Newlib Nano (default)
+CH32V20x_EVT.menu.rtlib.nano.build.flags.ldflags=--specs=nano.specs --specs=nosys.specs
+CH32V20x_EVT.menu.rtlib.nanofp=Newlib Nano + Float Printf
+CH32V20x_EVT.menu.rtlib.nanofp.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _printf_float
+CH32V20x_EVT.menu.rtlib.nanofs=Newlib Nano + Float Scanf
+CH32V20x_EVT.menu.rtlib.nanofs.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _scanf_float
+CH32V20x_EVT.menu.rtlib.nanofps=Newlib Nano + Float Printf/Scanf
+CH32V20x_EVT.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs --specs=nosys.specs -u _printf_float -u _scanf_float
+CH32V20x_EVT.menu.rtlib.full=Newlib Standard
+CH32V20x_EVT.menu.rtlib.full.build.flags.ldspecs=
+
+
+
+
+

cores/arduino/Arduino.h

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+/*
+  Arduino.h - Main include file for the Arduino SDK
+  Copyright (c) 2005-2013 Arduino Team.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Arduino_h
+#define Arduino_h
+
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 \
+                     + __GNUC_MINOR__ * 100 \
+                     + __GNUC_PATCHLEVEL__)
+#endif
+#if GCC_VERSION < 60300
+  #error "GCC version 6.3 or higher is required"
+#endif
+
+#ifdef __IN_ECLIPSE__
+  // #include "SrcWrapper.h"
+#endif
+
+#include "wiring.h"
+
+/* sketch */
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+extern void setup(void) ;
+extern void loop(void) ;
+
+// void yield(void)
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+
+// Include pins variant
+#include "pins_arduino.h"
+
+#endif // Arduino_h