flash.nc

tinyos2.0版本驱动

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 *  Intel Open Source License 
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 *  Copyright (c) 2002 Intel Corporation 
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/**
 * Interface for writing and erasing in flash memory
 *
 * Author:		Josh Herbach
 * Revision:	1.0
 * Date:		09/02/2005
 */

interface Flash
{
  /**
   * Writes numBytes of the buffer data to the address in flash specified
   * by addr. This function will only set bits low for the bytes it is 
   * supposed to write to.If addr connot be written to for any reason returns
   * FAIL, otherwise returns SUCCESS.
   *
   * @returns SUCCESS or FAIL.
   */
  command error_t write(uint32_t addr, uint8_t* data, uint32_t numBytes);

  /**
   * Erases the block of flash that contains addr, setting all bits to 1.
   * If this function fails for any reason it will return FAIL, otherwise 
   * SUCCESS.
   *
   * @returns SUCCESS or FAIL.
   */
  command error_t erase(uint32_t addr);

  /**
   * Reads len number of bytes into buf, starting at addr. If addr
   * cannot be read for any reason returns FAIL, otherwise returns
   * SUCCESS.
  */
  command error_t read(uint32_t addr, uint8_t* buf, uint32_t len);
}