添加安裝目錄下的庫 D:\Keil\ARM\RV31\LIB\STSTM32F10xR.LIB (我安裝在D盤)
實驗效果： PA8 PD2 接的LED 閃爍 顯示。
小技巧：
#define GPIO_LED GPIOF //宏定義
/* Enable GPIO_LED clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_LED, ENABLE);
GPIO_Init(GPIO_LED, &GPIO_InitStructure);
/* Turn on LD1 打開 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_6);
/* Turn off LD1 關閉*/
GPIO_ResetBits(GPIO_LED, GPIO_Pin_6);
這樣方便在更改IO時候，快速改動，不用每個GPIOF 端口改變。假如現在LED 接在PA口那么，直接改變宏定義就OK。
添加個C文件 輸入以下程序：
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure; //聲明結構體
/**********************************************************************
聲明一個結構體，名字是GPIO_InitStructure，結構體原型由GPIO_InitTypeDef 確定，
stm32里面初始化GPIO用的吧。。設置完了GPIO_InitStructure里面的內容后
在GPIO_Init (GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_InitStruct)里面調用，
比如初始化pa口，就是
GPIO_Init (GPIOA, &GPIO_InitStructure)，括號里后面那個就是你問題里面聲明的那個結構體
***************************************************************************/
ErrorStatus HSEStartUpStatus;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void Delay(vu32 nCount);
/* Private functions ---------------------------------------------------------*/
void LED_GPIO_init()
{
//初始化 GPIOA 的時鐘 庫函數208頁
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOD,ENABLE);
//初始化GPIO 見庫函數 P125頁 LED 兩只接在 PA8 PD2
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8; //要設置的PIN
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP; //推挽輸出
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; //輸出速度
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化 IO
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2; //要設置的PIN
GPIO_Init(GPIOD,&GPIO_InitStructure); //初始化 IO
GPIO_SetBits(GPIOD,GPIO_Pin_2); //初始化為高
GPIO_SetBits(GPIOA,GPIO_Pin_8); //初始化為高
}
/*******************************************************************************
* Function Name : main
* Description : Main program.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* System Clocks Configuration **********************************************/
RCC_Configuration();
/* NVIC Configuration *******************************************************/
NVIC_Configuration();
/* Configure all unused GPIO port pins in Analog Input mode (floating input
trigger OFF), this will reduce the power consumption and increase the device
immunity against EMI/EMC *************************************************/
LED_GPIO_init(); //初始化LED 函數
while (1)
{
GPIO_ResetBits(GPIOD,GPIO_Pin_2); //置低
GPIO_ResetBits(GPIOA,GPIO_Pin_8); //置低
Delay(0xfffff);
GPIO_SetBits(GPIOD,GPIO_Pin_2); //置高
GPIO_SetBits(GPIOA,GPIO_Pin_8); //置高
Delay(0xfffff);
}
}
/*******************************************************************************
* Function Name : RCC_Configuration
* Description : Configures the different system clocks.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RCC_Configuration(void)
{
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
}
/*******************************************************************************
* Function Name : NVIC_Configuration
* Description : Configures Vector Table base location.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void NVIC_Configuration(void)
{
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
/*******************************************************************************
* Function Name : Delay
* Description : Inserts a delay time.
* Input : nCount: specifies the delay time length.
* Output : None
* Return : None
*******************************************************************************/
void Delay(vu32 nCount)
{
for(; nCount != 0; nCount--);
}
#ifdef DEBUG
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/