我的4LED程序终于是编译通过了,可是我用DEBUG功能仿真运行时系统提示"Sat May 31 13:34:45 2008: The stack 'CSTACK' is filled to 100% (2048 bytes used out of 2048). The warning threshold is set to 90.%"看起来好象是堆栈溢出,可是我翻了STM32的手册和Cortex_M3的手册都没看到怎么设置堆栈.似乎这又是IAR搞的鬼,我就纳闷了就我这么简单一个程序怎么能扯到堆栈溢出上去呢?
* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
vu32 count = GPIO_Pin_4;
void SysTick_Config(void);
void Led_Config(void);
void Led_RW_ON(void);
void Led_RW_OFF(void);
void delay(void);
void delay()
{
vu32 i,j;
for (i=0; i<0xfff; i++)
{
for (j=0; j<0xff; j++);
}
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* Configure the systick */
SysTick_Config();
Led_Config();
while(1)
{
Led_RW_ON();
delay();
}
}
/*******************************************************************************
* Function Name : SysTick_Config
* Description : Configure a SysTick Base time to 10 ms.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SysTick_Config(void)
{
/* Configure HCLK clock as SysTick clock source */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
/* SysTick interrupt each 100 Hz with HCLK equal to 72MHz */
SysTick_SetReload(720000);
/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
/* Enable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Enable);
}
void Led_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* 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_6 | GPIO_Pin_7 | GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void Led_RW_ON(void)
{
switch(count)
{
case GPIO_Pin_4:
{
GPIO_SetBits(GPIOC,GPIO_Pin_4 );
count = GPIO_Pin_5;
}break;
case GPIO_Pin_5:
{
GPIO_SetBits(GPIOC,GPIO_Pin_5 );
count = GPIO_Pin_6;
}break;
case GPIO_Pin_6:
{
GPIO_SetBits(GPIOC,GPIO_Pin_6 );
count = GPIO_Pin_7;
}break;
case GPIO_Pin_7:
{
GPIO_SetBits(GPIOC,GPIO_Pin_7 );
count = GPIO_Pin_4;
}break;
default :
{
count = GPIO_Pin_4;
}break;
}
}
void Led_RW_OFF(void)
{
GPIO_ResetBits(GPIOC, GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_4 | GPIO_Pin_5);
}
#ifdef DEBUG
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert error has occurred.
* Input : - file: pointer to the source file name
* - line: assert 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 2007 STMicroelectronics *****END OF FILE****/
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