main.h

STM32F2xx DMA配置例程

/**
  ******************************************************************************
  * @file    DMA/FLASH_RAM/main.h 
  * @author  MCD Application Team
  * @version V1.0.0
  * @date    18-April-2011
  * @brief   Header for main.c module
  ******************************************************************************
  * @attention
  *
  * 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.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */ 
  
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H

/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm32_eval.h"
 
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* DMA Stream parameters definitions. You can modify these parameters to select
   a different DMA Stream and/or channel.
   But note that only DMA2 Streams are capable of Memory to Memory transfers. */
#define DMA_STREAM               DMA2_Stream0
#define DMA_CHANNEL              DMA_Channel_0
#define DMA_STREAM_CLOCK         RCC_AHB1Periph_DMA2 
#define DMA_STREAM_IRQ           DMA2_Stream0_IRQn
#define DMA_IT_TCIF              DMA_IT_TCIF0
#define DAM_STREAM_IRQHANDLER    DMA2_Stream0_IRQHandler

#define BUFFER_SIZE              32
#define TIMEOUT_MAX              10000 /* Maximum timeout value */

/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */

#endif /* __MAIN_H */

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/