Update GD32F10x CMSIS v2.7 startup code

Refresh GD32F10x CMSIS headers and version metadata to v2.7.0, including updated standard-peripheral version macros and licensing blocks. Rework system clock switching to use staged AHB prescaler changes and added software delays to reduce Vcore instability during startup, and replace direct SCS bit writes with register-temporary updates across clock setup paths. Add an optional firmware version API (`gd32f10x_firmware_version_get`) behind `__FIRMWARE_VERSION_DEFINE`.

Author: vanvught

lib-gd32/gd32f10x/CMSIS/GD/GD32F10x/Include/gd32f10x.h

@@ -2,51 +2,43 @@
     \file    gd32f10x.h
     \brief   general definitions for GD32F10x
 
-    \version 2014-12-26, V1.0.0, firmware for GD32F10x
-    \version 2017-06-20, V2.0.0, firmware for GD32F10x
-    \version 2018-07-31, V2.1.0, firmware for GD32F10x
-    \version 2020-09-30, V2.2.0, firmware for GD32F10x
+    \version 2026-02-12, V2.7.0, firmware for GD32F10x
 */
 
-/*
-    Copyright (c) 2020, GigaDevice Semiconductor Inc.
-
-    Redistribution and use in source and binary forms, with or without modification, 
-are permitted provided that the following conditions are met:
-
-    1. Redistributions of source code must retain the above copyright notice, this 
-       list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright notice, 
-       this list of conditions and the following disclaimer in the documentation 
-       and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holder nor the names of its contributors 
-       may be used to endorse or promote products derived from this software without 
-       specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
-IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
-INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
-OF SUCH DAMAGE.
-*/
+/*  Copyright (c) 2012 ARM LIMITED
+    Copyright (c) 2026, GigaDevice Semiconductor Inc.
+    
+    All rights reserved.
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    - Neither the name of ARM nor the names of its contributors may be used
+      to endorse or promote products derived from this software without
+      specific prior written permission.
+    *
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+    ---------------------------------------------------------------------------*/
+
+/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
 
 #ifndef GD32F10X_H
 #define GD32F10X_H
 
-/* AvV BEGIN */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-function"
-#pragma GCC diagnostic ignored "-Wconversion"
-#pragma GCC diagnostic ignored "-Wsign-conversion"
-#pragma GCC diagnostic ignored "-Wduplicated-cond"
-/* AvV END */
-
-#ifdef __cplusplus
+#ifdef cplusplus
  extern "C" {
 #endif 
 
@@ -96,15 +88,15 @@ OF SUCH DAMAGE.
 #define LXTAL_VALUE  ((uint32_t)32768)
 #endif /* low speed crystal oscillator value */
 
-/* GD32F10x firmware library version number V2.0 */
-#define __GD32F10x_STDPERIPH_VERSION_MAIN   (0x01) /*!< [31:24] main version     */
-#define __GD32F10x_STDPERIPH_VERSION_SUB1   (0x00) /*!< [23:16] sub1 version     */
-#define __GD32F10x_STDPERIPH_VERSION_SUB2   (0x00) /*!< [15:8]  sub2 version     */
-#define __GD32F10x_STDPERIPH_VERSION_RC     (0x00) /*!< [7:0]  release candidate */ 
-#define __GD32F10x_STDPERIPH_VERSION        ((__GD32F10x_STDPERIPH_VERSION_MAIN << 24)\
-                                            |(__GD32F10x_STDPERIPH_VERSION_SUB1 << 16)\
-                                            |(__GD32F10x_STDPERIPH_VERSION_SUB2 << 8)\
-                                            |(__GD32F10x_STDPERIPH_VERSION_RC))
+/* GD32F10x firmware library version number */
+#define __GD32F10X_STDPERIPH_VERSION_MAIN   (0x02) /*!< [31:24] main version     */
+#define __GD32F10X_STDPERIPH_VERSION_SUB1   (0x07) /*!< [23:16] sub1 version     */
+#define __GD32F10X_STDPERIPH_VERSION_SUB2   (0x00) /*!< [15:8]  sub2 version     */
+#define __GD32F10X_STDPERIPH_VERSION_RC     (0x00) /*!< [7:0]  release candidate */ 
+#define __GD32F10X_STDPERIPH_VERSION        ((__GD32F10X_STDPERIPH_VERSION_MAIN << 24)\
+                                            |(__GD32F10X_STDPERIPH_VERSION_SUB1 << 16)\
+                                            |(__GD32F10X_STDPERIPH_VERSION_SUB2 << 8)\
+                                            |(__GD32F10X_STDPERIPH_VERSION_RC))
 
 /* configuration of the Cortex-M3 processor and core peripherals */
 #define __MPU_PRESENT             0        /*!< GD32F10x do not provide MPU                              */
@@ -319,7 +311,7 @@ typedef enum IRQn
 
 /* enum definitions */
 typedef enum {DISABLE = 0, ENABLE = !DISABLE} EventStatus, ControlStatus;
-//typedef enum {FALSE = 0, TRUE = !FALSE} bool;	/* AvV BEGIN */
+// typedef enum {FALSE = 0, TRUE = !FALSE} bool; AvV
 typedef enum {RESET = 0, SET = !RESET} FlagStatus;
 typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrStatus;
 
@@ -382,7 +374,7 @@ typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrStatus;
 #include "gd32f10x_libopt.h"
 #endif /* USE_STDPERIPH_DRIVER */
 
-#ifdef __cplusplus
+#ifdef cplusplus
 }
 #endif
 #endif 

lib-gd32/gd32f10x/CMSIS/GD/GD32F10x/Include/system_gd32f10x.h

@@ -4,8 +4,8 @@
              GD32F10x Device Series
 */
 
-/*
-    Copyright (c) 2012 ARM LIMITED
+/*  Copyright (c) 2012 ARM LIMITED
+    Copyright (c) 2026, GigaDevice Semiconductor Inc.
 
     All rights reserved.
 
@@ -44,6 +44,9 @@ extern "C" {
 
 #include <stdint.h>
 
+/* firmware version can be aquired by uncommenting the macro */
+#define __FIRMWARE_VERSION_DEFINE
+
 /* system clock frequency (core clock) */
 extern uint32_t SystemCoreClock;
 
@@ -52,6 +55,10 @@ extern uint32_t SystemCoreClock;
 extern void SystemInit(void);
 /* update the SystemCoreClock with current core clock retrieved from cpu registers */
 extern void SystemCoreClockUpdate(void);
+#ifdef __FIRMWARE_VERSION_DEFINE
+/* get firmware version */
+extern uint32_t gd32f10x_firmware_version_get(void);
+#endif /* __FIRMWARE_VERSION_DEFINE */
 
 #ifdef __cplusplus
 }