错误现象：

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol GPIO_ResetBits (referred from lcd.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol GPIO_SetBits (referred from lcd.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol FLASH_PrefetchBufferCmd (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol FLASH_SetLatency (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol GPIO_Init (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol GPIO_PinRemapConfig (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol GPIO_Write (referred from main.o).

、、、、、、、、、、

解决方法：1、点击http://s4/small/006avBdLzy77XoE0Dkf43&690uVision4中常见错误" TITLE="（原创）MDK uVision4中常见错误" />，在Project Components下，最右边的Files中添加库函数。

2、或者在工作区左边的工作组中点击右键，选择Add Files to Group" XX",选择库文件添加。

2、工程中没有添加启动文件：STM32F10x.s

错误现象：

.\out\STM32_3.2_LCD.axf: Error: L6320W: Ignoring --entry command. Cannot find argument 'Reset_Handler'.

.\out\STM32_3.2_LCD.axf: Warning: L6320W: Ignoring --first command. Cannot find argument '__Vectors'.

解决方法：1、点击http://s4/small/006avBdLzy77XoE0Dkf43&690uVision4中常见错误" TITLE="（原创）MDK uVision4中常见错误" />，在Project Components下，最右边的Files中添加启动文件。

2、或者在工作区左边的工作组中点击右键，选择Add Files to Group" XX",选择加入启动文件。

3、点C文件中没有加入头文件：#include "stm32f10x_rcc.h"、#include "stm32f10x_gpio.h"

#include "stm32f10x_flash.h"、、、、、、、等等

错误现象：

main.c(49): error:  #20: identifier "RCC_APB2Periph_GPIOA" is undefined

main.c(49): error:  #20: identifier "RCC_APB2Periph_GPIOB" is undefined

main.c(49): error:  #20: identifier "RCC_APB2Periph_AFIO" is undefined

main.c(165): warning:  #223-D: function "RCC_DeInit" declared implicitly

main.c(168): warning:  #223-D: function "RCC_HSEConfig" declared implicitly

main.c(168): error:  #20: identifier "RCC_HSE_ON" is undefined

main.c(171): warning:  #223-D: function "RCC_WaitForHSEStartUp" declared implicitly

main.c(171): warning:  #188-D: enumerated type mixed with another type

main.c(176): warning:  #223-D: function "FLASH_PrefetchBufferCmd" declared implicitly

main.c(176): error:  #20: identifier "FLASH_PrefetchBuffer_Enable" is undefined

main.c(179): warning:  #223-D: function "FLASH_SetLatency" declared implicitly

main.c(179): error:  #20: identifier "FLASH_Latency_2" is undefined

main.c(182): warning:  #223-D: function "RCC_HCLKConfig" declared implicitly

main.c(182): error:  #20: identifier "RCC_SYSCLK_Div1" is undefined

main.c(185): warning:  #223-D: function "RCC_PCLK2Config" declared implicitly

main.c(185): error:  #20: identifier "RCC_HCLK_Div1" is undefined

解决方法：在对应点C文件中加入头文件。

4、工程中不小心删掉一个点C文件：比如LCD.c

错误现象：

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol LCD_Init (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol LCD_ShowChar (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol LCD_ShowString (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol Pant (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol colors (referred from main.o).

.\out\STM32_3.2_LCD.axf: Error: L6218E: Undefined symbol delayms (referred from main.o).

解决方法：加入对应的文件。参考1。