原创用最新板MDK库玩转智林STM32开发板（之一）-----只写一个文件点亮LED

 2009-4-3 08:44  3325 10 10 分类: MCU/ 嵌入式

众所周知智林的板子是不用固件库的，本人想用库行不行，昨天一试还真行，且为最新的库，环境为

RealView MDK 3.40评估版

我只写了一个主程序，main.c 其余两个：一个启动代码，一个是编译过的库文件

程序十分简捷：我根本就没调直接用串口下载一次成功，不亦乐乎！

现把主程序传上来大家来分享：

#include "stm32f10x_lib.h"

/*----------------------------------------------------------*\
| RCC_Configuration                                                       |
| 时钟初始化                                                                 |
| 一般不用改                                                                  |
|                                                                                       |
\*----------------------------------------------------------*/

void RCC_Configuration(void)
{
        ErrorStatus HSEStartUpStatus;
        // 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)
        {
                // HCLK = SYSCLK
                RCC_HCLKConfig(RCC_SYSCLK_Div1);

                // PCLK2 = HCLK
                RCC_PCLK2Config(RCC_HCLK_Div1);

                // PCLK1 = HCLK/2
                RCC_PCLK1Config(RCC_HCLK_Div2);

                // Flash 2 wait state
                //FLASH_SetLatency(FLASH_Latency_2);
                FLASH_SetLatency(FLASH_Latency_0);
                //FLASH_SetLatency(FLASH_Latency_1);

                // Enable Prefetch Buffer
                FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

                // PLLCLK = 8MHz * 2 = 16 MHz
                RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_2);

// 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)
                {
                }

        }

        // Enable peripheral clocks --------------------------------------------------
}

/*----------------------------------------------------------*\
| LedInit                                                 |
| 出始化管脚                                              |
| 因为开发板LED接在第PB5上,所以初始化PB5                  |
|                                                          |
\*----------------------------------------------------------*/

void LedInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//使能外设时钟

        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;          //激活PB5脚
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz; //设管脚速率
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //设输出方式
        GPIO_Init(GPIOB, &GPIO_InitStructure);     //管脚B其余默认定义

}

/*----------------------------------------------------------*\
| Delay                                                   |
| 延时 Inserts a delay time.                              |
| nCount: 延时时间                                        |
| nCount: specifies the delay time length.                |
\*----------------------------------------------------------*/
void Delay(vu32 nCount) {
for(; nCount != 0; nCount--);
}
/*----------------------------------------------------------*\
| Delay                                                   |
| 延时 Inserts a delay time.                              |
| nCount: 延时时间                                        |
| nCount: specifies the delay time length.                |
\*----------------------------------------------------------*/
main()
{

RCC_Configuration();
LedInit();
while(1)
{
GPIO_ResetBits(GPIOB,GPIO_Pin_5);
  Delay(2000000);
  GPIO_SetBits(GPIOB,GPIO_Pin_5);
  Delay(2000000);

}
}