Matthias
6cc948eef8
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@113 9fe90eed-be63-e94b-8204-d34ff4c2ff93
218 lines
6.6 KiB
C
218 lines
6.6 KiB
C
/* ---------------------------------------------------------------------------
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* InternalFlash.c - v0.1 (c) 2008 Micro-key bv
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* ---------------------------------------------------------------------------
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* Micro-key bv
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* Industrieweg 28, 9804 TG Noordhorn
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* Postbus 92, 9800 AB Zuidhorn
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* The Netherlands
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* Tel: +31 594 503020
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* Fax: +31 594 505825
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* Email: support@microkey.nl
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* Web: www.microkey.nl
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* ---------------------------------------------------------------------------
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* Description:
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* ---------------------------------------------------------------------------
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* Version(s): 0.1, Feb 11, 2008, FSc
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* Creation.
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* System include files
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Application include files
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* ---------------------------------------------------------------------------
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*/
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#include "types.h"
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#include "sys_config.h"
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#include "InternalFlash.h"
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#include "leds.h"
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#include "sys_config.h"
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/* ---------------------------------------------------------------------------
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* Local constant and macro definitions
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* ---------------------------------------------------------------------------
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*/
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#define IAP_LOCATION 0x7ffffff1
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#define IAP_PREPARE_CMD (50)
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#define IAP_COPY_RAM2FLASH_CMD (51)
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#define IAP_ERASE_SECTORS_CMD (52)
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#define IAP_BLANK_CHECK_SECTORS_CMD (53)
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#define IAP_READ_PART_ID_CMD (54)
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#define IAP_READ_BOOTCODE_V_CMD (55)
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#define IAP_COMPARE_CMD (56)
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#define IAP_REINVOKE_ISP_CMD (57)
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/* ---------------------------------------------------------------------------
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* Global variable definitions
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Local variable definitions
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* ---------------------------------------------------------------------------
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*/
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static unsigned int command[5];
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static unsigned int result[2];
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typedef void (*IAP)(unsigned int [],unsigned int[]);
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IAP iap_entry;
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/* ---------------------------------------------------------------------------
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* Local function definitions
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* ---------------------------------------------------------------------------
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*/
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/** \brief Initialises the internal flash module */
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void iflashInit()
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{
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iap_entry=(IAP) IAP_LOCATION;
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}
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/** \brief Prepares the flash for erasing and programming (must be called before these actions)
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*
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* This command must be executed before executing "Copy RAM to flash" or "Erase
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* Sector(s)" command. Successful execution of the "Copy RAM to flash" or "Erase
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* Sector(s)" command causes relevant sectors to be protected again. The boot
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* sector can not be prepared by this command. To prepare a single sector use the
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* same "Start" and "End" sector numbers
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*
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* \param beginSector Start sector number (0-27)
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* \param endSector End Sector Number (should be greater than or equal to start sector number).
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* \retval CMD_SUCCESS prepare was succesfull
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* \retval BUSY
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* \retval INVALID_SECTOR
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*/
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iflashresult iflashPrepare(UINT8 beginSector, UINT8 endSector)
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{
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// Build command
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command[0] = IAP_PREPARE_CMD;
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command[1] = beginSector;
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command[2] = endSector;
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//DISABLE_INTERRUPTS();
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iap_entry (command, result);
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//ENABLE_INTERRUPTS();
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// readout result
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return result[0];
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//return CMD_SUCCESS;
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}
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/** \brief Erases one sector on the internal flash
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*
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* \param sector Sector nr to be erased (0-27)
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* \retval CMD_SUCCESS
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* \retval BUSY
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* \retval SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION
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* \retval INVALID_SECTOR
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*/
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iflashresult iflashErase( UINT8 sector )
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{
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// Build command
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command[0] = IAP_ERASE_SECTORS_CMD;
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command[1] = sector; // start sector
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command[2] = sector; // end sector
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command[3] = CCLK/1000; // Clock frequency in kHz
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DISABLE_INTERRUPTS();
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iap_entry (command, result);
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ENABLE_INTERRUPTS();
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return result[0];
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}
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/** \brief Programs some data on the flash
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*
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* \param address Addres on flash to which the data must be programmed
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* \param dataLength Nr of bytes in data array (Should be 256 | 512 | 1024 | 4096.)
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* \param data The data-array that should be programmed
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* \retval CMD_SUCCESS
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* \retval SRC_ADDR_ERROR (Address not a word boundary)
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* \retval DST_ADDR_ERROR (Address not on correct boundary)
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* \retval SRC_ADDR_NOT_MAPPED
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* \retval DST_ADDR_NOT_MAPPED
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* \retval COUNT_ERROR (Byte count is not 256 | 512 | 1024 | 4096)
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* \retval SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION
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* \retval BUSY
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*/
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iflashresult iflashProgram( UINT32 address, UINT16 dataLength, UINT8 *data)
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{
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// Build command
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command[0] = IAP_COPY_RAM2FLASH_CMD;
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command[1] = address; // flash address
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command[2] = (UINT32)data; // RAM address
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command[3] = dataLength; // Nr of bytes Should be 256 | 512 | 1024 | 4096.
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command[4] = CCLK/1000; // Clock frequency in kHz
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DISABLE_INTERRUPTS();
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iap_entry (command, result);
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ENABLE_INTERRUPTS();
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return result[0];
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}
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/** \brief Compares the data with the data on the internal flash on location "address"
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*
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* \param address Addres on flash to which the data must be programmed
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* \param dataLength Number of bytes to be compared; should be a multiple of 4.
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* \param data The data-array that should be programmed
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* \retval CMD_SUCCESS
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* \retval COMPARE_ERROR
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* \retval COUNT_ERROR (Byte count is not a multiple of 4)
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* \retval ADDR_ERROR
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* \retval ADDR_NOT_MAPPED
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*/
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iflashresult iflashVerify( UINT32 address, UINT16 dataLength, UINT8 *data)
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{
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// Build command
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command[0] = IAP_COMPARE_CMD;
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command[1] = address; // flash address
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command[2] = (UINT32)data; // RAM address
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command[3] = dataLength;
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iap_entry (command, result);
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return result[0];
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}
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/** \brief This command is used to read the part identification number.
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*
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* \retval the Part identification number
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*/
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UINT32 iflashReadPartId()
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{
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// Build command
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command[0] = IAP_READ_PART_ID_CMD;
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iap_entry (command, result);
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return result[1];
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}
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/** \brief This command is used to read the boot code version number. */
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UINT32 iflashReadBootcodeVersionNr()
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{
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// Build command
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command[0] = IAP_READ_BOOTCODE_V_CMD;
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iap_entry (command, result);
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return result[1];
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}
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