From 9be490a58e770bce84100f10f16ec3f0c770b8ac Mon Sep 17 00:00:00 2001
From: xiaotian <canxuetian@gmail.com>
Date: Tue, 22 Feb 2022 23:38:28 +0800
Subject: [PATCH] fixed

---
 CMSIS/DeviceSupport/linker/AT32F403AxG_FLASH.ld | 2 +-
 CMakeLists.txt                                  | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CMSIS/DeviceSupport/linker/AT32F403AxG_FLASH.ld b/CMSIS/DeviceSupport/linker/AT32F403AxG_FLASH.ld
index 1af978a..f23e391 100644
--- a/CMSIS/DeviceSupport/linker/AT32F403AxG_FLASH.ld
+++ b/CMSIS/DeviceSupport/linker/AT32F403AxG_FLASH.ld
@@ -2,7 +2,7 @@
 ENTRY(Reset_Handler)
 
 /* Highest address of the user mode stack */
-_estack = 0x20018000;    /* end of RAM */
+_estack = 0x20018000;    /* end of RAM */  /*此处原厂提供的值会导致浮点数溢出*/
 
 /* Generate a link error if heap and stack don't fit into RAM */
 _Min_Heap_Size = 0x200;      /* required amount of heap  */
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12347b9..cbf4f04 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,3 @@
-#此文件从模板自动生成! 请勿更改!
 set(CMAKE_SYSTEM_NAME Generic)
 set(CMAKE_SYSTEM_VERSION 1)
 cmake_minimum_required(VERSION 3.21)
@@ -14,7 +13,7 @@ set(SIZE arm-none-eabi-size)
 set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
 
 # project settings
-project(FPU_TEST C CXX ASM)
+project(AT32 C CXX ASM)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_C_STANDARD 11)
 
@@ -25,12 +24,13 @@ set(CMAKE_C_STANDARD 11)
 
 #Uncomment for software floating point
 #add_compile_options(-mfloat-abi=soft)
-
+#优化等级
+add_compile_options(-O3)
 add_compile_options(-mcpu=cortex-m4 -mthumb -mthumb-interwork)
 add_compile_options(-ffunction-sections -fdata-sections -fno-common -fmessage-length=0)
 # uncomment to mitigate c++17 absolute addresses warnings
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-register")
-add_compile_options(-O3)
+
 include_directories(
         User/inc
         StdPeriph_Driver/inc