main.c

STM32F103 USB例子程序包括大容量存储、USB转串口

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Version            : V1.0
* Date               : 10/08/2007
* Description        : Device Firmware Upgrade(DFU) demo main file
********************************************************************************
* THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
#include "usb_lib.h"
#include "usb_conf.h"
#include "usb_prop.h"
#include "usb_pwr.h"
#include "hw_config.h"

/* Private typedef -----------------------------------------------------------*/
typedef  void (*pFunction)(void);
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Extern variables ----------------------------------------------------------*/
u8 DeviceState;
u8 DeviceStatus[6];
pFunction Jump_To_Application;
u32 JumpAddress;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
* Function Name  : main.
* Description    : main routine.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
int main(void)
{

#ifdef DEBUG
  debug();
#endif
  
  DFU_Button_Config();
  
  /* Test if PB.09 level is low (Key push-button on STM3210B-EVAL Board pressed) */
  if (DFU_Button_Read() != 0x00)
  { /* Test if user code is programmed starting from address 0x8003000 */
    if (((*(vu32*)0x8003000) & 0x2FFF0000 ) == 0x20000000)
    { /* Jump to user application */

      JumpAddress = *(vu32*) (ApplicationAddress + 4);
      Jump_To_Application = (pFunction) JumpAddress;
      /* Initialize user application's Stack Pointer */
      __MSR_MSP(*(vu32*) ApplicationAddress);
      Jump_To_Application();
    }    
  } /* Otherwise enters DFU mode to allow user to program his application */

  /* Enter DFU mode */
  DeviceState = STATE_dfuERROR;
  DeviceStatus[0] = STATUS_ERRFIRMWARE;
  DeviceStatus[4] = DeviceState;

  Set_System();
  Set_USBClock(); 
  
  USB_Init();
  
  /* Main loop */
  while (1)
  {
  }
}


#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) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif
/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/