#include "common.h"

extern pFunction Jump_To_Application;
extern u32 JumpAddress;
ErrorStatus HSEStartUpStatus;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
static void IAP_Init(void);
void USART1_IRQHandler(void);
#define USART_Prescaler 0x01;
/* Private functions ---------------------------------------------------------*/
int main(void)
{
#ifdef DEBUG
  debug();
#endif
char s_ch= 0x88  ;
volatile unsigned int IIR;

 IAP_Init();
  while(1)
  {
    IIR = USART1->SR;
    if (IIR & USART_FLAG_TXE) 
    {
      USART1->SR &= ~USART_FLAG_TXE;	          
      //s_ch++;
      //USART1->DR = s_ch;
      USART_SendData(USART1, s_ch);
      //USART_Cmd(USART1, ENABLE); 
      USART1->CR1 &= ~USART_FLAG_TXE;		      
     }
  }
}
void IAP_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  USART_InitTypeDef USART_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;

  /* Clock configuration -------------------------------------------------------*/
RCC_Configuration();

 RCC_APB2PeriphClockCmd (RCC_APB2Periph_GPIOA, ENABLE); 
/* Configure USART1 Rx (PA10) as input floating */ 
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; 
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; 
GPIO_Init(GPIOA, &GPIO_InitStructure); 

/* Configure USART1 Tx (PA9) as alternate function push-pull */ 
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; 
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
GPIO_Init(GPIOA, &GPIO_InitStructure); 

USART_InitStructure.USART_BaudRate = (115200); 
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_Rx | USART_Mode_Tx; 
USART1->GTPR |= USART_Prescaler;

USART_Init(USART1, &USART_InitStructure); 
USART_IrDACmd(USART1, ENABLE);
//USART1->CR3 |= 0x8;

NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQChannel; 
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; 
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; 

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE); 

//Enable the USART1 Interrupt 
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; 
NVIC_Init(&NVIC_InitStructure); 

//Enable the USART  interrupt: 
//USART_ITConfig(USART1, USART_IT_TXE, ENABLE); 
USART_ITConfig(USART1, USART_IT_ORE, ENABLE); 
//USART_ITConfig(USART1, USART_IT_FE, ENABLE); 
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); 

USART_Cmd(USART1, ENABLE); 
}

void USART1_IRQHandler(void) 
{ 
  volatile unsigned int IIR;
  char i, c;
  if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) 
  {  
    IIR = USART1->SR;
    i = USART_ReceiveData(USART1);
    USART_ClearITPendingBit(USART1, USART_IT_RXNE); 
    //USART_ClearFlag(USART1, USART_IT_TXE);
  } 
  if (USART_GetITStatus(USART1, USART_IT_ORE) != RESET) 
  { 
    IIR = USART1->SR;
    i = USART_ReceiveData(USART1); 
    USART_ClearITPendingBit(USART1, USART_IT_ORE); 
        //USART_ClearFlag(USART1, USART_IT_TXE);

  } 
  if(USART_GetITStatus(USART1, USART_IT_FE) != RESET) 
  { 
    IIR = USART1->SR;
    i = USART_ReceiveData(USART1); 
    USART_ClearITPendingBit(USART1, USART_IT_FE); 
    } 
  } 

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_Div2, 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)
    {}
  }

  /* Enable GPIOA, GPIOC and USART1 clock  */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC
                         | RCC_APB2Periph_USART1, ENABLE);


}


#ifdef  DEBUG
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 2008 STMicroelectronics *****END OF FILE****/