Diff: IAP.cpp

Revision:

1:a85b51eeb446

Parent:

0:b802bd2f4cc9

Child:

2:c22f0c87fee6

--- a/IAP.cpp	Fri Mar 12 10:24:57 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,202 +0,0 @@
-/**    IAP : internal Flash memory access library
- *
- *        The internal Flash memory access is described in the LPC1768 usermanual. 
- *            http://www.nxp.com/documents/user_manual/UM10360.pdf
- *
- *            Chapter  2: "LPC17xx Memory map"
- *            Chapter 32: "LPC17xx Flash memory interface and programming"
- *                refering Rev. 01 - 4 January 2010
- *
- *        Released under the MIT License: http://mbed.org/license/mit
- *
- *        revision 1.0  09-Mar-2010   1st release
- *        revision 1.1  12-Mar-2010   chaged: to make possible to reserve flash area for user
- *                                            it can be set by USER_FLASH_AREA_START and USER_FLASH_AREA_SIZE in IAP.h
- */
-
-#include    "mbed.h"
-#include    "IAP.h"
-
-#define     USER_FLASH_AREA_START_STR( x )      STR( x )
-#define     STR( x )                            #x
-
-unsigned char user_area[ USER_FLASH_AREA_SIZE ] __attribute__((section( ".ARM.__at_" USER_FLASH_AREA_START_STR( USER_FLASH_AREA_START ) ), zero_init));
-
-
-/*
- *  Reserve of flash area is explained by Igor. Please refer next URL
- *    http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/?page=1#comment-271
- */
- 
-//unsigned char user_area[ size ] __attribute__((section(".ARM.__at_0x78000"), zero_init));
-
-/*
- *  IAP command codes
- *  Table 589. "IAP Command Summary", Chapter 8. "IAP commands", usermanual
- */
-
-enum command_code
-        {
-            IAPCommand_Prepare_sector_for_write_operation    = 50,
-            IAPCommand_Copy_RAM_to_Flash,
-            IAPCommand_Erase_sector,
-            IAPCommand_Blank_check_sector,
-            IAPCommand_Read_part_ID,
-            IAPCommand_Read_Boot_Code_version,
-            IAPCommand_Compare,
-            IAPCommand_Reinvoke_ISP,
-            IAPCommand_Read_device_serial_number
-        };
-
-
-/** Read part identification number
- *
- *  @return    device ID
- *  @see       read_serial()
- */
-
-int IAP::read_ID( void ) {
-    IAP_command[ 0 ]    = IAPCommand_Read_part_ID;
-    
-    iap_entry( IAP_command, IAP_result );
-    
-    //  return ( (int)IAP_result[ 0 ] );
-    return ( (int)IAP_result[ 1 ] );    //  to return the number itself (this command always returns CMD_SUCCESS)
-}
-
-
-/** Read device serial number
- *
- *  @return    device serial number
- *  @see       read_ID()
- */
-
-int IAP::read_serial( void ) {
-    IAP_command[ 0 ]    = IAPCommand_Read_device_serial_number;
-    
-    iap_entry( IAP_command, IAP_result );
-    
-    //  return ( (int)IAP_result[ 0 ] );
-    return ( (int)IAP_result[ 1 ] );    //  to return the number itself (this command always returns CMD_SUCCESS)
-}
-
-
-/** Blank check sector(s)
- *  
- *  @param    start    a Start Sector Number
- *  @param    end      an End Sector Number (should be greater than or equal to start sector number).
- *  @return error code: CMD_SUCCESS | BUSY | SECTOR_NOT_BLANK | INVALID_SECTOR
- */
-
-int IAP::blank_check( int start, int end ) {
-    IAP_command[ 0 ]    = IAPCommand_Blank_check_sector;
-    IAP_command[ 1 ]    = (unsigned int)start;  //  Start Sector Number
-    IAP_command[ 2 ]    = (unsigned int)end;    //  End Sector Number (should be greater than or equal to start sector number)
-
-    iap_entry( IAP_command, IAP_result );
-
-    return ( (int)IAP_result[ 0 ] );
-}
-
-
-/** Erase Sector(s)
- *  
- *  @param    start    a Start Sector Number
- *  @param    end      an End Sector Number (should be greater than or equal to start sector number).
- *  @return   error code: CMD_SUCCESS | BUSY | SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION | INVALID_SECTOR
- */
-
-int IAP::erase( int start, int end ) {
-    IAP_command[ 0 ]    = IAPCommand_Erase_sector;
-    IAP_command[ 1 ]    = (unsigned int)start;  //  Start Sector Number
-    IAP_command[ 2 ]    = (unsigned int)end;    //  End Sector Number (should be greater than or equal to start sector number)
-    IAP_command[ 3 ]    = cclk_kHz;             //  CPU Clock Frequency (CCLK) in kHz
-
-    iap_entry( IAP_command, IAP_result );
-
-    return ( (int)IAP_result[ 0 ] );
-}
-
-
-/** Prepare sector(s) for write operation
- *  
- *  @param    start    a Start Sector Number
- *  @param    end      an End Sector Number (should be greater than or equal to start sector number).
- *  @return   error code: CMD_SUCCESS | BUSY | INVALID_SECTOR
- */
-
-int IAP::prepare( int start, int end ) {
-    IAP_command[ 0 ]    = IAPCommand_Prepare_sector_for_write_operation;
-    IAP_command[ 1 ]    = (unsigned int)start;  //  Start Sector Number
-    IAP_command[ 2 ]    = (unsigned int)end;    //  End Sector Number (should be greater than or equal to start sector number).
-    
-    iap_entry( IAP_command, IAP_result );
-    
-    return ( (int)IAP_result[ 0 ] );
-}
-
-
-/** Copy RAM to Flash
- *  
- *  @param    source_addr    Source RAM address from which data bytes are to be read. This address should be a word boundary.
- *  @param    target_addr    Destination flash address where data bytes are to be written. This address should be a 256 byte boundary.
- *  @param    size           Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
- *  @return   error code: CMD_SUCCESS | SRC_ADDR_ERROR (Address not a word boundary) | DST_ADDR_ERROR (Address not on correct boundary) | SRC_ADDR_NOT_MAPPED | DST_ADDR_NOT_MAPPED | COUNT_ERROR (Byte count is not 256 | 512 | 1024 | 4096) | SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION | BUSY
- */
-
-int IAP::write( char *source_addr, char *target_addr, int size ) {
-    IAP_command[ 0 ]    = IAPCommand_Copy_RAM_to_Flash;
-    IAP_command[ 1 ]    = (unsigned int)target_addr;    //  Destination flash address where data bytes are to be written. This address should be a 256 byte boundary.
-    IAP_command[ 2 ]    = (unsigned int)source_addr;    //  Source RAM address from which data bytes are to be read. This address should be a word boundary.
-    IAP_command[ 3 ]    = size;                         //  Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
-    IAP_command[ 4 ]    = cclk_kHz;                     //  CPU Clock Frequency (CCLK) in kHz.
-
-    iap_entry( IAP_command, IAP_result );
-
-    return ( (int)IAP_result[ 0 ] );
-}
-
-
-/** Compare <address1> <address2> <no of bytes>
- *  
- *  @param    source_addr Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
- *  @param    target_addr Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
- *  @param    size         Number of bytes to be compared; should be a multiple of 4.
- *  @return   error code: CMD_SUCCESS | COMPARE_ERROR | COUNT_ERROR (Byte count is not a multiple of 4) | ADDR_ERROR | ADDR_NOT_MAPPED     
- */
-
-int IAP::compare( char *source_addr, char *target_addr, int size ) {
-    IAP_command[ 0 ]    = IAPCommand_Compare;
-    IAP_command[ 1 ]    = (unsigned int)target_addr;    //  Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
-    IAP_command[ 2 ]    = (unsigned int)source_addr;    //  Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
-    IAP_command[ 3 ]    = size;                         //  Number of bytes to be compared; should be a multiple of 4.
-
-    iap_entry( IAP_command, IAP_result );
-
-    return ( (int)IAP_result[ 0 ] );
-}
-
-
-/** Get user reserved flash start address
- *
- *  @return    start address of user reserved flash memory
- *  @see       reserved_flash_area_size()
- */
-
-char * IAP::reserved_flash_area_start( void )
-{
-    return ( (char *)USER_FLASH_AREA_START );
-}
-
-
-/** Get user reserved flash size
- *
- *  @return    size of user reserved flash memory
- *  @see       reserved_flash_area_start()
- */
-
-int IAP::reserved_flash_area_size( void )
-{
-    return ( USER_FLASH_AREA_SIZE );
-}
-