Tedd OKANO / Mbed 2 deprecated IAP_internal_flash_write

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Dependencies:   mbed IAP

main.cpp@4:5705a494169a, 2015-01-13 (annotated)

Committer:
okano
Date:
Tue Jan 13 09:11:47 2015 +0000
Revision:
4:5705a494169a
Parent:
3:63a0993315e5
Child:
5:806960ca964e
ver3.1 : LPC1114 support

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 0:b802bd2f4cc9 1 /** IAP demo : demo code for internal Flash memory access library
okano 0:b802bd2f4cc9 2 *
okano 3:63a0993315e5 3 * The internal Flash memory access is described in the LPC1768 and LPC11U24 usermanual.
okano 0:b802bd2f4cc9 4 * http://www.nxp.com/documents/user_manual/UM10360.pdf
okano 1:a85b51eeb446 5 * http://www.nxp.com/documents/user_manual/UM10462.pdf
okano 0:b802bd2f4cc9 6 *
okano 1:a85b51eeb446 7 * LPC1768 --
okano 1:a85b51eeb446 8 * Chapter 2: "LPC17xx Memory map"
okano 1:a85b51eeb446 9 * Chapter 32: "LPC17xx Flash memory interface and programming"
okano 1:a85b51eeb446 10 * refering Rev. 01 - 4 January 2010
okano 3:63a0993315e5 11 *
okano 1:a85b51eeb446 12 * LPC11U24 --
okano 1:a85b51eeb446 13 * Chapter 2: "LPC11Uxx Memory mapping"
okano 1:a85b51eeb446 14 * Chapter 20: "LPC11Uxx Flash programming firmware"
okano 1:a85b51eeb446 15 * refering Rev. 03 - 16 July 2012
okano 3:63a0993315e5 16 *
okano 0:b802bd2f4cc9 17 * This main.cpp demonstrates how the flash can be erased and wrote.
okano 0:b802bd2f4cc9 18 *
okano 0:b802bd2f4cc9 19 * This program tries to...
okano 0:b802bd2f4cc9 20 * 0. read device ID and serial#
okano 0:b802bd2f4cc9 21 * 1. check if the targat sector blank
okano 0:b802bd2f4cc9 22 * 2. erase the sector if it was not blank
okano 0:b802bd2f4cc9 23 * 3. write into the flash (prepare before write)
okano 0:b802bd2f4cc9 24 * 4. verify the data by IAP command
okano 0:b802bd2f4cc9 25 * 5. show the content of the flash
okano 0:b802bd2f4cc9 26 *
okano 3:63a0993315e5 27 * The Flash must be erased as sectors. No overwrite can be done like SRAM.
okano 3:63a0993315e5 28 * So erase should be done in size of 4K or 32K.
okano 0:b802bd2f4cc9 29 *
okano 3:63a0993315e5 30 * Writing sector can be done with size of 256, 512, 1024 or 4096.
okano 3:63a0993315e5 31 * If other size is used, the IAP returns an error.
okano 3:63a0993315e5 32 * The SRAM memory should be allocated in
okano 0:b802bd2f4cc9 33 *
okano 0:b802bd2f4cc9 34 *
okano 1:a85b51eeb446 35 * Released under the MIT License: http://mbed.org/license/mit
okano 0:b802bd2f4cc9 36 *
okano 0:b802bd2f4cc9 37 * revision 1.0 09-Mar-2010 1st release
okano 0:b802bd2f4cc9 38 * revision 1.1 12-Mar-2010 chaged: to make possible to reserve flash area for user
okano 0:b802bd2f4cc9 39 * it can be set by USER_FLASH_AREA_START and USER_FLASH_AREA_SIZE in IAP.h
okano 1:a85b51eeb446 40 * revision 2.0 26-Nov.2012 LPC11U24 code added
okano 2:c22f0c87fee6 41 * revision 2.1 26-Nov-2012 EEPROM access code imported from Suga koubou san's (http://mbed.org/users/okini3939/) library
okano 2:c22f0c87fee6 42 * http://mbed.org/users/okini3939/code/M0_EEPROM_test/
okano 3:63a0993315e5 43 * revision 3.0 09-Jan-2014 LPC812 and LPC824 support added
okano 4:5705a494169a 44 * revision 3.1 13-Jan-2014 LPC1114 support added
okano 0:b802bd2f4cc9 45 */
okano 0:b802bd2f4cc9 46
okano 0:b802bd2f4cc9 47 #include "mbed.h"
okano 0:b802bd2f4cc9 48 #include "IAP.h"
okano 0:b802bd2f4cc9 49
okano 0:b802bd2f4cc9 50 #define MEM_SIZE 256
okano 1:a85b51eeb446 51
okano 1:a85b51eeb446 52 #if defined(TARGET_LPC1768)
okano 1:a85b51eeb446 53 #define TARGET_SECTOR 29 // use sector 29 as target sector if it is on LPC1768
okano 4:5705a494169a 54 #elif defined(TARGET_LPC11U24) || defined(TARGET_LPC1114)
okano 1:a85b51eeb446 55 #define TARGET_SECTOR 7 // use sector 7 as target sector if it is on LPC11U24
okano 2:c22f0c87fee6 56 #define TARGET_EEPROM_ADDRESS 64
okano 3:63a0993315e5 57 #define TARGET_EEPROM_ADDRESS 64
okano 3:63a0993315e5 58 #elif defined(TARGET_LPC812) || defined(TARGET_LPC824)
okano 3:63a0993315e5 59 #define TARGET_SECTOR 15 // use sector 15 as target sector if it is on LPC812
okano 1:a85b51eeb446 60 #endif
okano 0:b802bd2f4cc9 61
okano 0:b802bd2f4cc9 62 void memdump( char *p, int n );
okano 0:b802bd2f4cc9 63 int isprint( int c );
okano 0:b802bd2f4cc9 64
okano 0:b802bd2f4cc9 65 IAP iap;
okano 0:b802bd2f4cc9 66
okano 0:b802bd2f4cc9 67
okano 3:63a0993315e5 68 int main()
okano 3:63a0993315e5 69 {
okano 0:b802bd2f4cc9 70 char mem[ MEM_SIZE ]; // memory, it should be aligned to word boundary
okano 0:b802bd2f4cc9 71 int r;
okano 0:b802bd2f4cc9 72
okano 3:63a0993315e5 73 printf( "\r\n\r\n=== IAP: Flash memory writing test ===\r\n" );
okano 1:a85b51eeb446 74 printf( " device-ID = 0x%08X, serial# = 0x%08X, CPU running %dkHz\r\n", iap.read_ID(), iap.read_serial(), SystemCoreClock / 1000 );
okano 1:a85b51eeb446 75 printf( " user reserved flash area: start_address=0x%08X, size=%d bytes\r\n", iap.reserved_flash_area_start(), iap.reserved_flash_area_size() );
okano 1:a85b51eeb446 76 printf( " read_BootVer=0x%08X\r\r\n", iap.read_BootVer() );
okano 0:b802bd2f4cc9 77
okano 0:b802bd2f4cc9 78 for ( int i = 0; i < MEM_SIZE; i++ )
okano 0:b802bd2f4cc9 79 mem[ i ] = i & 0xFF;
okano 0:b802bd2f4cc9 80
okano 0:b802bd2f4cc9 81 // blank check: The mbed will erase all flash contents after downloading new executable
okano 0:b802bd2f4cc9 82
okano 0:b802bd2f4cc9 83 r = iap.blank_check( TARGET_SECTOR, TARGET_SECTOR );
okano 1:a85b51eeb446 84 printf( "blank check result = 0x%08X\r\n", r );
okano 0:b802bd2f4cc9 85
okano 0:b802bd2f4cc9 86 // erase sector, if required
okano 3:63a0993315e5 87
okano 0:b802bd2f4cc9 88 if ( r == SECTOR_NOT_BLANK ) {
okano 0:b802bd2f4cc9 89 iap.prepare( TARGET_SECTOR, TARGET_SECTOR );
okano 0:b802bd2f4cc9 90 r = iap.erase( TARGET_SECTOR, TARGET_SECTOR );
okano 1:a85b51eeb446 91 printf( "erase result = 0x%08X\r\n", r );
okano 0:b802bd2f4cc9 92 }
okano 3:63a0993315e5 93
okano 0:b802bd2f4cc9 94 // copy RAM to Flash
okano 0:b802bd2f4cc9 95
okano 0:b802bd2f4cc9 96 iap.prepare( TARGET_SECTOR, TARGET_SECTOR );
okano 0:b802bd2f4cc9 97 r = iap.write( mem, sector_start_adress[ TARGET_SECTOR ], MEM_SIZE );
okano 1:a85b51eeb446 98 printf( "copied: SRAM(0x%08X)->Flash(0x%08X) for %d bytes. (result=0x%08X)\r\n", mem, sector_start_adress[ TARGET_SECTOR ], MEM_SIZE, r );
okano 0:b802bd2f4cc9 99
okano 0:b802bd2f4cc9 100 // compare
okano 0:b802bd2f4cc9 101
okano 0:b802bd2f4cc9 102 r = iap.compare( mem, sector_start_adress[ TARGET_SECTOR ], MEM_SIZE );
okano 1:a85b51eeb446 103 printf( "compare result = \"%s\"\r\n", r ? "FAILED" : "OK" );
okano 0:b802bd2f4cc9 104
okano 0:b802bd2f4cc9 105 //#define WRITE_NEXT_BLOCK
okano 0:b802bd2f4cc9 106 #ifdef WRITE_NEXT_BLOCK
okano 0:b802bd2f4cc9 107
okano 0:b802bd2f4cc9 108 // copy RAM to Flash
okano 0:b802bd2f4cc9 109
okano 0:b802bd2f4cc9 110 iap.prepare( TARGET_SECTOR, TARGET_SECTOR );
okano 0:b802bd2f4cc9 111 r = iap.write( mem, sector_start_adress[ TARGET_SECTOR ] + 256, MEM_SIZE );
okano 1:a85b51eeb446 112 printf( "copied: SRAM(0x%08X)->Flash(0x%08X) for %d bytes. (result=0x%08X)\r\n", mem, sector_start_adress[ TARGET_SECTOR ], MEM_SIZE, r );
okano 0:b802bd2f4cc9 113
okano 0:b802bd2f4cc9 114 // compare
okano 0:b802bd2f4cc9 115
okano 0:b802bd2f4cc9 116 r = iap.compare( mem, sector_start_adress[ TARGET_SECTOR ] + 256, MEM_SIZE );
okano 1:a85b51eeb446 117 printf( "compare result = \"%s\"\r\n", r ? "FAILED" : "OK" );
okano 0:b802bd2f4cc9 118
okano 0:b802bd2f4cc9 119 #endif
okano 0:b802bd2f4cc9 120
okano 1:a85b51eeb446 121 printf( "showing the flash contents...\r\n" );
okano 0:b802bd2f4cc9 122 memdump( sector_start_adress[ TARGET_SECTOR ], MEM_SIZE * 3 );
okano 3:63a0993315e5 123
okano 3:63a0993315e5 124
okano 3:63a0993315e5 125 #if defined(TARGET_LPC812) || defined(TARGET_LPC824)
okano 3:63a0993315e5 126 iap.prepare( TARGET_SECTOR, TARGET_SECTOR );
okano 3:63a0993315e5 127 r = iap.erase_page( 241, 241 ); // 241 is page number for sector 7 with 64 byte offset
okano 3:63a0993315e5 128
okano 3:63a0993315e5 129 printf( "\r\nerase page test\r\n" );
okano 3:63a0993315e5 130 printf( "erase page result = \"%s\"\r\n", r ? "FAILED" : "OK" );
okano 3:63a0993315e5 131 printf( "showing memory dump to confirm 0x00003C40 to 0x00003C7F are erased (should be changed to 0xFF)" );
okano 3:63a0993315e5 132
okano 3:63a0993315e5 133 memdump( sector_start_adress[ TARGET_SECTOR ], MEM_SIZE );
okano 3:63a0993315e5 134 #endif
okano 3:63a0993315e5 135
okano 3:63a0993315e5 136
okano 2:c22f0c87fee6 137 #if defined(TARGET_LPC11U24) // SAMPLE OF EEPROM ACCESS (LPC11U24 only)
okano 2:c22f0c87fee6 138 printf( "IAP: EEPROM writing test\r\n" );
okano 2:c22f0c87fee6 139 char mem2[ MEM_SIZE ];
okano 2:c22f0c87fee6 140
okano 2:c22f0c87fee6 141 r = iap.write_eeprom( mem, (char*)TARGET_EEPROM_ADDRESS, MEM_SIZE );
okano 2:c22f0c87fee6 142 printf( "copied: SRAM(0x%08X)->EEPROM(0x%08X) for %d bytes. (result=0x%08X)\r\n", mem, TARGET_EEPROM_ADDRESS, MEM_SIZE, r );
okano 3:63a0993315e5 143
okano 2:c22f0c87fee6 144 r = iap.read_eeprom( (char*)TARGET_EEPROM_ADDRESS, mem2, MEM_SIZE );
okano 2:c22f0c87fee6 145 printf( "copied: EEPROM(0x%08X)->SRAM(0x%08X) for %d bytes. (result=0x%08X)\r\n", TARGET_EEPROM_ADDRESS, mem, MEM_SIZE, r );
okano 3:63a0993315e5 146
okano 2:c22f0c87fee6 147 // compare
okano 2:c22f0c87fee6 148 r = memcmp(mem, mem2, MEM_SIZE);
okano 2:c22f0c87fee6 149 printf( "compare result = \"%s\"\r\n", r ? "FAILED" : "OK" );
okano 3:63a0993315e5 150
okano 2:c22f0c87fee6 151 printf( "showing the EEPROM contents...\r\n" );
okano 2:c22f0c87fee6 152 memdump( mem2, MEM_SIZE );
okano 2:c22f0c87fee6 153 #endif
okano 2:c22f0c87fee6 154
okano 0:b802bd2f4cc9 155 }
okano 0:b802bd2f4cc9 156
okano 0:b802bd2f4cc9 157
okano 3:63a0993315e5 158 void memdump( char *base, int n )
okano 3:63a0993315e5 159 {
okano 0:b802bd2f4cc9 160 unsigned int *p;
okano 0:b802bd2f4cc9 161
okano 0:b802bd2f4cc9 162 printf( " memdump from 0x%08X for %d bytes", (unsigned long)base, n );
okano 0:b802bd2f4cc9 163
okano 0:b802bd2f4cc9 164 p = (unsigned int *)((unsigned int)base & ~(unsigned int)0x3);
okano 0:b802bd2f4cc9 165
okano 0:b802bd2f4cc9 166 for ( int i = 0; i < (n >> 2); i++, p++ ) {
okano 0:b802bd2f4cc9 167 if ( !(i % 4) )
okano 1:a85b51eeb446 168 printf( "\r\n 0x%08X :", (unsigned int)p );
okano 0:b802bd2f4cc9 169
okano 0:b802bd2f4cc9 170 printf( " 0x%08X", *p );
okano 0:b802bd2f4cc9 171 }
okano 0:b802bd2f4cc9 172
okano 1:a85b51eeb446 173 printf( "\r\n" );
okano 0:b802bd2f4cc9 174 }