spi.c

通过手动烧写flash,实现了stm32的自动更新功能,用户可以再本例程的基础上修改实现通过串口或者网络实现程序的自动更新

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_conf.h"

#include "stm32f10x_lib.h"


void SPI_Configuration(void)
{
	SPI_InitTypeDef   SPI_InitStructure;
	//启动外设时钟							
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
  /* SPI1 Config -------------------------------------------------------------*/
  SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
  SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
  SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256;
  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_LSB;
  SPI_InitStructure.SPI_CRCPolynomial = 7;
  SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
  SPI_Init(SPI1, &SPI_InitStructure);



  SPI_ITConfig(SPI1,SPI_IT_ERR,ENABLE);		   	
  /* Enable SPI1 */
  SPI_Cmd(SPI1, ENABLE);

}