单片机解密#include "stm32f10x_lib.h"
单片机解密#include"stdio.h"

void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
/* RCC system reset(for debug purpose) */
RCC_DeInit();          //将外设RCC 寄存器重设为缺省值
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);//使能外部时钟
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();//等待外部时钟就绪
if(HSEStartUpStatus == SUCCESS)
{
   /* Enable Prefetch Buffer 启用预取缓冲器 */
   FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

   /* Flash 2 wait state FLASH设置2个等待周期*/
   FLASH_SetLatency(FLASH_Latency_2);

   /* HCLK（AHB时钟） = SYSCLK 设置AHB时钟*/
   RCC_HCLKConfig(RCC_SYSCLK_Div1);//AHB(Advanced High performance Bus)系统总线
                                                    //APB(Advanced Peripheral Bus)外围总线

   /* PCLK2 = HCLK PCLK2时钟=主时钟*/
   RCC_PCLK2Config(RCC_HCLK_Div1);

   /* PCLK1 = HCLK/2 PCLK1时钟为主时钟1/2*/
   RCC_PCLK1Config(RCC_HCLK_Div2);

   /* PLLCLK = 8MHz * 9 = 72 MHz 设置时钟为72M，设置PLL时钟源及倍频系数（<=72M）*/
   RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

   /* Enable PLL 使能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 USART_configuration(void)
{
   USART_InitTypeDef USART_InitStructure;

   USART_InitStructure.USART_BaudRate = 9600;
   USART_InitStructure.USART_WordLength = USART_WordLength_8b;
   USART_InitStructure.USART_StopBits = USART_StopBits_1;
   USART_InitStructure.USART_Parity = USART_Parity_No;
   USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
   USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;


   USART_Init(USART1, &USART_InitStructure);
   USART_Cmd(USART1, ENABLE);


}
void USART_ClockInitconfiguration(void)
{
   USART_ClockInitTypeDef  USART_ClockInitStructuree;
   USART_ClockInitStructuree.USART_Clock = USART_Clock_Disable;
   USART_ClockInitStructuree.USART_CPOL = USART_CPOL_High;
   USART_ClockInitStructuree.USART_CPHA = USART_CPHA_1Edge;
   USART_ClockInitStructuree.USART_LastBit = USART_LastBit_Enable;
   USART_ClockInit(USART1, &USART_ClockInitStructuree);

}