RCC_DeInit(); //RCC寄存器复位
RCC_HSICmd(ENABLE); //内部晶振开启
while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET)
{
}
/* 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);
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* PLLCLK = 8MHz/2 * 8 = 32 MHz */
RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_8);
/* 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)
{
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Enable USART1, GPIOA, GPIOD and AFIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB| RCC_APB2Periph_AFIO, ENABLE);
我的RCC函数有问题吗？ 程序根本没运行，灯没反应
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