本帖最后由 sdlcxyx 于 2010-9-19 12:51 编辑
我的目的是想按下按键就可使相应LED灯亮，所以找了这个例程！可是为什么我按下按键的时候没有反应呀，我用的530版本
请问各位老师，是不是我应该修改程序中的一些代码呀？？？
需要修改哪些语句？？
请老师解答一下，只要程序能让我的灯亮起来。。。
救命呀
#include <stm32f10x_lib.h>
GPIO_InitTypeDef GPIO_InitStructure;
ErrorStatus HSEStartUpStatus;
u8 MyGpioBitStutas = Bit_RESET;
void RCC_Configuration(void);
void NVIC_Configuration(void);
void Delay(vu32 nCount);
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* Configure the system clocks */
RCC_Configuration();
/* NVIC Configuration */
NVIC_Configuration();
/* Enable GPIOC clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
/* Configure PC.06, PC.07, PC.08 and PC.09 as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/************GPIO输入设置*****************/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4| GPIO_Pin_5 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
while (1)
{
/*GPIO_ReadInputDataBit为读入GPIO的状态值。然后进行判断*/
if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_4) == Bit_SET)
GPIO_SetBits(GPIOB, GPIO_Pin_1);
else
GPIO_ResetBits(GPIOB, GPIO_Pin_1);
if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_5) == Bit_SET)
GPIO_SetBits(GPIOB, GPIO_Pin_2);
else
GPIO_ResetBits(GPIOB, GPIO_Pin_2);
}
}
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)
{
}
}
}
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
}
//*******************************************************************************/
void Delay(vu32 nCount)
{
vu8 i;
for(; nCount != 0; nCount--)
for(i = 10; i > 0; i--);
}
#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 |
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