www.pudn.com > Flash.rar > main.c, change:2008-12-24,size:9550b


/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** 
* File Name          : main.c 
* Author             : MCD Application Team 
* Version            : V2.0.1 
* Date               : 06/13/2008 
* Description        : Main program body 
******************************************************************************** 
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS 
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. 
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, 
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE 
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING 
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. 
*******************************************************************************/ 
 
/* Includes ------------------------------------------------------------------*/ 
#include "stm32f10x_lib.h" 
#include "main.h" 
#include "platform_config.h" 
#include <stdio.h> 
 
/* Private typedef -----------------------------------------------------------*/ 
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; 
 
/* Private define ------------------------------------------------------------*/ 
#define StartAddr  ((u32)0x08040000) 
#define EndAddr    ((u32)0x08041000) 
 
/* Private macro -------------------------------------------------------------*/ 
/* Private variables ---------------------------------------------------------*/ 
static vu32 TimingDelay = 0;   
u32 EraseCounter = 0x00, Address = 0x00; 
u32 Data; 
vu32 NbrOfPage = 0x00; 
volatile FLASH_Status FLASHStatus; 
volatile TestStatus MemoryProgramStatus; 
ErrorStatus HSEStartUpStatus; 
 
/* Private function prototypes -----------------------------------------------*/ 
void NVIC_Configuration(void); 
void RCC_Configuration(void); 
void usart1(void); 
     
/* Private functions ---------------------------------------------------------*/ 
/******************************************************************************* 
* Function Name  : main 
* Description    : Main program 
* Input          : None 
* Output         : None 
* Return         : None 
*******************************************************************************/ 
int main(void) 
{ 
#ifdef DEBUG 
  debug(); 
#endif 
 
  FLASHStatus = FLASH_COMPLETE; 
  MemoryProgramStatus = PASSED; 
  Data = 0x15041979; 
   
  /* RCC Configuration */ 
  RCC_Configuration();   
 
  /* NVIC Configuration */ 
  NVIC_Configuration(); 
 
  /* Configure the systick */     
  SysTick_Config(); 
  /* Initialize the LCD */ 
  STM3210E_LCD_Init(); 
  /* Clear the LCD */  
  LCD_Clear(White); 
  LCD_SetBackColor(Blue); 
  /* Set the LCD Text Color */ 
  LCD_SetTextColor(White);  
 
  LCD_DisplayStringLine(Line0, "   EM_STM32E Demo   "); 
  LCD_DisplayStringLine(Line1, "     Flash_Test     "); 
  LCD_DisplayStringLine(Line2, " welcome to Embest  "); 
  LCD_DisplayStringLine(Line3, " www.embedinfo.com  "); 
  LCD_SetBackColor(White);                        // Set the Back Color */ 
  LCD_SetTextColor(Blue);                         // Set the Text Color */ 
 
  usart1();   
  printf("\n========== start ==========\n"); 
  LCD_DisplayStringLine(Line5, "======  start ======"); 
 
  /* Unlock the Flash Program Erase controller */ 
  FLASH_Unlock(); 
 
  /* Define the number of page to be erased */ 
  NbrOfPage = (EndAddr - StartAddr) / FLASH_PAGE_SIZE; 
 
  /* Clear All pending flags */ 
  FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);	 
 
  /* Erase the FLASH pages */ 
  for(EraseCounter = 0; (EraseCounter < NbrOfPage) && (FLASHStatus == FLASH_COMPLETE); EraseCounter++) 
  { 
    FLASHStatus = FLASH_ErasePage(StartAddr + (FLASH_PAGE_SIZE * EraseCounter)); 
  } 
   
  /*  FLASH Word program of data 0x15041979 at addresses defined by StartAddr and EndAddr*/ 
  Address = StartAddr; 
 
  while((Address < EndAddr) && (FLASHStatus == FLASH_COMPLETE)) 
  { 
    FLASHStatus = FLASH_ProgramWord(Address, Data); 
    Address = Address + 4; 
  } 
   
  /* Check the corectness of written data */ 
  Address = StartAddr; 
 
  while((Address < EndAddr) && (MemoryProgramStatus != FAILED)) 
  { 
    if((*(vu32*) Address) != Data) 
    { 
      MemoryProgramStatus = FAILED; 
    } 
    Address += 4; 
  } 
 
  if(MemoryProgramStatus == FAILED) 
  { 
    printf("\nFlash Program error!\n"); 
	LCD_DisplayStringLine(Line6, " Flash Program error! "); 
  } 
  else 
  { 
    printf("\nFlash Program OK!\n"); 
	LCD_DisplayStringLine(Line6, "  Flash Program OK!  "); 
  } 
     
  printf("\n==========  end  ==========\n"); 
  LCD_DisplayStringLine(Line7, "======   end  ======"); 
 
  while (1) 
  { 
  } 
} 
 
/******************************************************************************* 
* Function Name  : NVIC_Configuration 
* Description    : Configures Vector Table base location. 
* Input          : None 
* Output         : None 
* Return         : None 
*******************************************************************************/ 
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 
} 
 
/******************************************************************************* 
* Function Name  : RCC_Configuration 
* Description    : Configures the different system clocks. 
* Input          : None 
* Output         : None 
* Return         : None 
*******************************************************************************/ 
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) 
    { 
    } 
  } 
} 
 
#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) */ 
 
  while (1) 
  { 
  } 
} 
#endif 
 
/******************************************************************************* 
* 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); 
} 
 
/******************************************************************************* 
* Function Name  : Delay 
* Description    : Inserts a delay time. 
* Input          : nCount: specifies the delay time length (time base 10 ms). 
* Output         : None 
* Return         : None 
*******************************************************************************/ 
void Delay(u32 nCount) 
{ 
  TimingDelay = nCount; 
 
  /* Enable the SysTick Counter */ 
  SysTick_CounterCmd(SysTick_Counter_Enable); 
   
  while(TimingDelay != 0) 
  { 
  } 
 
  /* Disable the SysTick Counter */ 
  SysTick_CounterCmd(SysTick_Counter_Disable); 
 
  /* Clear the SysTick Counter */ 
  SysTick_CounterCmd(SysTick_Counter_Clear); 
} 
 
/******************************************************************************* 
* Function Name  : Decrement_TimingDelay 
* Description    : Decrements the TimingDelay variable. 
* Input          : None 
* Output         : TimingDelay 
* Return         : None 
*******************************************************************************/ 
void Decrement_TimingDelay(void) 
{ 
  if (TimingDelay != 0x00) 
  { 
    TimingDelay--; 
  } 
} 
 
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/