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a688b95eb6
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1235 ebee16cc-31ac-478f-84a7-5cbb03baadba
98 lines
3.7 KiB
C
98 lines
3.7 KiB
C
/******************** (C) COPYRIGHT 2010 STMicroelectronics ********************
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* File Name : spi_if.c
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* Author : MCD Application Team
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* Version : V3.2.1
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* Date : 07/05/2010
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* Description : specific media access Layer for SPI flash
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********************************************************************************
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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/* Includes ------------------------------------------------------------------*/
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#include "spi_flash.h"
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#include "spi_if.h"
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#include "dfu_mal.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/*******************************************************************************
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* Function Name : SPI_If_Init
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* Description : Initializes the Media on the STM32
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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uint16_t SPI_If_Init(void)
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{
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SPI_FLASH_Init();
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return MAL_OK;
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}
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/*******************************************************************************
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* Function Name : SPI_If_Erase
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* Description : Erase sector
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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uint16_t SPI_If_Erase(uint32_t SectorAddress)
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{
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SPI_FLASH_SectorErase(SectorAddress);
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return MAL_OK;
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}
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/*******************************************************************************
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* Function Name : SPI_If_Write
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* Description : Write sectors
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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uint16_t SPI_If_Write(uint32_t SectorAddress, uint32_t DataLength)
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{
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uint32_t idx, pages;
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pages = (((DataLength & 0xFF00)) >> 8);
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if (DataLength & 0xFF) /* Not a 256 aligned data */
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{
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for ( idx = DataLength; idx < ((DataLength & 0xFF00) + 0x100) ; idx++)
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{
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MAL_Buffer[idx] = 0xFF;
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}
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pages = (((DataLength & 0xFF00)) >> 8 ) + 1;
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}
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for (idx = 0; idx < pages; idx++)
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{
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SPI_FLASH_PageWrite(&MAL_Buffer[idx*256], SectorAddress, 256);
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SectorAddress += 0x100;
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}
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return MAL_OK;
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}
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/*******************************************************************************
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* Function Name : SPI_If_Read
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* Description : Read sectors
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* Input : None
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* Output : None
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* Return : buffer address pointer
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*******************************************************************************/
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uint8_t *SPI_If_Read(uint32_t SectorAddress, uint32_t DataLength)
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{
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SPI_FLASH_BufferRead(MAL_Buffer, SectorAddress, (uint16_t)DataLength);
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return MAL_Buffer;
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}
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/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/
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